diff options
| author | Devtools Arcadia <arcadia-devtools@yandex-team.ru> | 2022-02-07 18:08:42 +0300 |
|---|---|---|
| committer | Devtools Arcadia <arcadia-devtools@mous.vla.yp-c.yandex.net> | 2022-02-07 18:08:42 +0300 |
| commit | 1110808a9d39d4b808aef724c861a2e1a38d2a69 (patch) | |
| tree | e26c9fed0de5d9873cce7e00bc214573dc2195b7 /contrib/libs/fmt | |
| download | ydb-1110808a9d39d4b808aef724c861a2e1a38d2a69.tar.gz | |
intermediate changes
ref:cde9a383711a11544ce7e107a78147fb96cc4029
Diffstat (limited to 'contrib/libs/fmt')
63 files changed, 27016 insertions, 0 deletions
diff --git a/contrib/libs/fmt/.yandex_meta/devtools.copyrights.report b/contrib/libs/fmt/.yandex_meta/devtools.copyrights.report new file mode 100644 index 0000000000..ec2878b09a --- /dev/null +++ b/contrib/libs/fmt/.yandex_meta/devtools.copyrights.report @@ -0,0 +1,54 @@ +# File format ($ symbol means the beginning of a line): +# +# $ # this message +# $ # ======================= +# $ # comments (all commentaries should starts with some number of spaces and # symbol) +# ${action} {license id} {license text hash} +# $BELONGS ./ya/make/file/relative/path/1/ya.make ./ya/make/2/ya.make +# ${all_file_action} filename +# $ # user commentaries (many lines) +# $ generated description - files with this license, license text... (some number of lines that starts with some number of spaces, do not modify) +# ${action} {license spdx} {license text hash} +# $BELONGS ./ya/make/file/relative/path/3/ya.make +# ${all_file_action} filename +# $ # user commentaries +# $ generated description +# $ ... +# +# You can modify action, all_file_action and add commentaries +# Available actions: +# keep - keep license in contrib and use in credits +# skip - skip license +# remove - remove all files with this license +# rename - save license text/links into licenses texts file, but not store SPDX into LINCENSE macro. You should store correct license id into devtools.license.spdx.txt file +# +# {all file action} records will be generated when license text contains filename that exists on filesystem (in contrib directory) +# We suppose that that files can contain some license info +# Available all file actions: +# FILE_IGNORE - ignore file (do nothing) +# FILE_INCLUDE - include all file data into licenses text file +# ======================= + +KEEP COPYRIGHT_SERVICE_LABEL 42ef378c29c84310ebe255222873c110 +BELONGS ya.make + License text: + Copyright (c) 2012 - present, Victor Zverovich + Scancode info: + Original SPDX id: COPYRIGHT_SERVICE_LABEL + Score : 100.00 + Match type : COPYRIGHT + Files with this license: + LICENSE.rst [1:1] + include/fmt/format.h [4:4] + +KEEP COPYRIGHT_SERVICE_LABEL e5011fbbbb17be3f047d22823e595711 +BELONGS ya.make + License text: + // Copyright (c) 2012 - 2016, Victor Zverovich + // All rights reserved. + Scancode info: + Original SPDX id: COPYRIGHT_SERVICE_LABEL + Score : 100.00 + Match type : COPYRIGHT + Files with this license: + include/fmt/format-inl.h [3:4] diff --git a/contrib/libs/fmt/.yandex_meta/devtools.licenses.report b/contrib/libs/fmt/.yandex_meta/devtools.licenses.report new file mode 100644 index 0000000000..919c0db862 --- /dev/null +++ b/contrib/libs/fmt/.yandex_meta/devtools.licenses.report @@ -0,0 +1,185 @@ +# File format ($ symbol means the beginning of a line): +# +# $ # this message +# $ # ======================= +# $ # comments (all commentaries should starts with some number of spaces and # symbol) +# ${action} {license spdx} {license text hash} +# $BELONGS ./ya/make/file/relative/path/1/ya.make ./ya/make/2/ya.make +# ${all_file_action} filename +# $ # user commentaries (many lines) +# $ generated description - files with this license, license text... (some number of lines that starts with some number of spaces, do not modify) +# ${action} {license spdx} {license text hash} +# $BELONGS ./ya/make/file/relative/path/3/ya.make +# ${all_file_action} filename +# $ # user commentaries +# $ generated description +# $ ... +# +# You can modify action, all_file_action and add commentaries +# Available actions: +# keep - keep license in contrib and use in credits +# skip - skip license +# remove - remove all files with this license +# rename - save license text/links into licenses texts file, but not store SPDX into LINCENSE macro. You should store correct license id into devtools.license.spdx.txt file +# +# {all file action} records will be generated when license text contains filename that exists on filesystem (in contrib directory) +# We suppose that that files can contain some license info +# Available all file actions: +# FILE_IGNORE - ignore file (do nothing) +# FILE_INCLUDE - include all file data into licenses text file +# ======================= + +KEEP MIT 14395d49cccf7dd9c262788c7c3eb609 +BELONGS ya.make + Note: matched license text is too long. Read it in the source files. + Scancode info: + Original SPDX id: MIT + Score : 100.00 + Match type : TEXT + Links : http://opensource.org/licenses/mit-license.php, https://spdx.org/licenses/MIT + Files with this license: + LICENSE.rst [3:20] + +KEEP Python-2.0 2d546e12da84a09821b5adec69c70a0f +BELONGS ya.make + License text: + For this reason the documentation is distributed under the Python Software + Foundation license available in `doc/python-license.txt + Scancode info: + Original SPDX id: Python-2.0 + Score : 100.00 + Match type : TAG + Links : http://docs.python.org/license.html, http://spdx.org/licenses/Python-2.0, https://spdx.org/licenses/Python-2.0 + Files with this license: + README.rst [492:493] + +SKIP LicenseRef-scancode-unknown-license-reference 3fcdee168a85f1461aa583cd7f18043b +BELONGS ya.make + License text: + For this reason the documentation is distributed under the Python Software + Scancode info: + Original SPDX id: LicenseRef-scancode-unknown-license-reference + Score : 11.00 + Match type : INTRO + Links : https://github.com/nexB/scancode-toolkit/tree/develop/src/licensedcode/data/licenses/unknown-license-reference.LICENSE + Files with this license: + README.rst [492:492] + +KEEP MIT 476937dc5fddc3ee6decbe8339415f26 +BELONGS ya.make + Note: matched license text is too long. Read it in the source files. + Scancode info: + Original SPDX id: MIT + Score : 100.00 + Match type : TEXT + Links : http://opensource.org/licenses/mit-license.php, https://spdx.org/licenses/MIT + Files with this license: + include/fmt/format.h [6:23] + +SKIP LicenseRef-scancode-free-unknown 5d196c949d549ec6ab6c8b6e91d13198 +BELONGS ya.make + License text: + * `0 A.D. <https://play0ad.com/>`_: a free, open-source, cross-platform + Scancode info: + Original SPDX id: LicenseRef-scancode-free-unknown + Score : 100.00 + Match type : REFERENCE + Links : https://github.com/nexB/scancode-toolkit/tree/develop/src/licensedcode/data/licenses/free-unknown.LICENSE + Files with this license: + README.rst [290:290] + +KEEP Apache-2.0 WITH LLVM-exception 8414486073d317cf7cd4d1f09dfce508 +BELONGS ya.make + Note: matched license text is too long. Read it in the source files. + Scancode info: + Original SPDX id: Apache-2.0 + Score : 25.87 + Match type : NOTICE + Links : http://www.apache.org/licenses/, http://www.apache.org/licenses/LICENSE-2.0, https://spdx.org/licenses/Apache-2.0 + Files with this license: + LICENSE.rst [22:27] + Scancode info: + Original SPDX id: LLVM-exception + Score : 25.87 + Match type : NOTICE + Links : http://llvm.org/foundation/relicensing/LICENSE.txt, https://spdx.org/licenses/LLVM-exception + Files with this license: + LICENSE.rst [22:27] + +KEEP Public-Domain 8625d6667c7cc7a4ddcc3e7fd4308e40 +BELONGS ya.make + License text: + // A public domain branchless UTF-8 decoder by Christopher Wellons: + Scancode info: + Original SPDX id: LicenseRef-scancode-public-domain + Score : 70.00 + Match type : REFERENCE + Links : http://www.linfo.org/publicdomain.html, https://github.com/nexB/scancode-toolkit/tree/develop/src/licensedcode/data/licenses/public-domain.LICENSE + Files with this license: + include/fmt/format-inl.h [2596:2596] + +KEEP MIT b98929dca7b73a810e832f9c054d3879 +BELONGS ya.make + License text: + permissive MIT `license + Scancode info: + Original SPDX id: MIT + Score : 100.00 + Match type : REFERENCE + Links : http://opensource.org/licenses/mit-license.php, https://spdx.org/licenses/MIT + Files with this license: + README.rst [65:65] + +KEEP MIT c5802f9446103e27fc922556ae4d3933 +BELONGS ya.make + License text: + * Switched to the `MIT license + Scancode info: + Original SPDX id: MIT + Score : 100.00 + Match type : REFERENCE + Links : http://opensource.org/licenses/mit-license.php, https://spdx.org/licenses/MIT + Files with this license: + ChangeLog.rst [1270:1270] + +KEEP MIT e647d0c897654c0ee685caf63729e497 +BELONGS ya.make + License text: + {fmt} is distributed under the MIT `license + Scancode info: + Original SPDX id: MIT + Score : 100.00 + Match type : NOTICE + Links : http://opensource.org/licenses/mit-license.php, https://spdx.org/licenses/MIT + Files with this license: + README.rst [483:483] + +SKIP LicenseRef-scancode-unknown-license-reference e6ae53b14c92abc61997c8f784da0ebd +BELONGS ya.make + License text: + agree that your contributions are licensed under the {fmt} license, and agree + Scancode info: + Original SPDX id: LicenseRef-scancode-unknown-license-reference + Score : 16.00 + Match type : INTRO + Links : https://github.com/nexB/scancode-toolkit/tree/develop/src/licensedcode/data/licenses/unknown-license-reference.LICENSE + Files with this license: + CONTRIBUTING.md [6:6] + +KEEP Apache-2.0 WITH LLVM-exception fa9fb64ff4e431b42132f9429061d02d +BELONGS ya.make + Note: matched license text is too long. Read it in the source files. + Scancode info: + Original SPDX id: Apache-2.0 + Score : 25.87 + Match type : NOTICE + Links : http://www.apache.org/licenses/, http://www.apache.org/licenses/LICENSE-2.0, https://spdx.org/licenses/Apache-2.0 + Files with this license: + include/fmt/format.h [25:30] + Scancode info: + Original SPDX id: LLVM-exception + Score : 25.87 + Match type : NOTICE + Links : http://llvm.org/foundation/relicensing/LICENSE.txt, https://spdx.org/licenses/LLVM-exception + Files with this license: + include/fmt/format.h [25:30] diff --git a/contrib/libs/fmt/.yandex_meta/licenses.list.txt b/contrib/libs/fmt/.yandex_meta/licenses.list.txt new file mode 100644 index 0000000000..ebb551465c --- /dev/null +++ b/contrib/libs/fmt/.yandex_meta/licenses.list.txt @@ -0,0 +1,87 @@ +====================Apache-2.0 WITH LLVM-exception==================== + --- Optional exception to the license --- + + As an exception, if, as a result of your compiling your source code, portions + of this Software are embedded into a machine-executable object form of such + source code, you may redistribute such embedded portions in such object form + without including the above copyright and permission notices. + + +====================Apache-2.0 WITH LLVM-exception==================== +--- Optional exception to the license --- + +As an exception, if, as a result of your compiling your source code, portions +of this Software are embedded into a machine-executable object form of such +source code, you may redistribute such embedded portions in such object form +without including the above copyright and permission notices. + +====================COPYRIGHT==================== +// Copyright (c) 2012 - 2016, Victor Zverovich +// All rights reserved. + + +====================COPYRIGHT==================== +Copyright (c) 2012 - present, Victor Zverovich + + +====================MIT==================== + permissive MIT `license + + +====================MIT==================== + Permission is hereby granted, free of charge, to any person obtaining + a copy of this software and associated documentation files (the + "Software"), to deal in the Software without restriction, including + without limitation the rights to use, copy, modify, merge, publish, + distribute, sublicense, and/or sell copies of the Software, and to + permit persons to whom the Software is furnished to do so, subject to + the following conditions: + + The above copyright notice and this permission notice shall be + included in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE + LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + + +====================MIT==================== +* Switched to the `MIT license + + +====================MIT==================== +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + + +====================MIT==================== +{fmt} is distributed under the MIT `license + + +====================Public-Domain==================== +// A public domain branchless UTF-8 decoder by Christopher Wellons: + + +====================Python-2.0==================== +For this reason the documentation is distributed under the Python Software +Foundation license available in `doc/python-license.txt diff --git a/contrib/libs/fmt/CONTRIBUTING.md b/contrib/libs/fmt/CONTRIBUTING.md new file mode 100644 index 0000000000..b82f145069 --- /dev/null +++ b/contrib/libs/fmt/CONTRIBUTING.md @@ -0,0 +1,20 @@ +Contributing to {fmt} +===================== + +By submitting a pull request or a patch, you represent that you have the right +to license your contribution to the {fmt} project owners and the community, +agree that your contributions are licensed under the {fmt} license, and agree +to future changes to the licensing. + +All C++ code must adhere to [Google C++ Style Guide]( +https://google.github.io/styleguide/cppguide.html) with the following +exceptions: + +* Exceptions are permitted +* snake_case should be used instead of UpperCamelCase for function and type + names + +All documentation must adhere to the [Google Developer Documentation Style +Guide](https://developers.google.com/style). + +Thanks for contributing! diff --git a/contrib/libs/fmt/ChangeLog.rst b/contrib/libs/fmt/ChangeLog.rst new file mode 100644 index 0000000000..9c171af050 --- /dev/null +++ b/contrib/libs/fmt/ChangeLog.rst @@ -0,0 +1,3665 @@ +7.1.3 - 2020-11-24 +------------------ + +* Fixed handling of buffer boundaries in ``format_to_n`` + (`#1996 <https://github.com/fmtlib/fmt/issues/1996>`_, + `#2029 <https://github.com/fmtlib/fmt/issues/2029>`_). + +* Fixed linkage errors when linking with a shared library + (`#2011 <https://github.com/fmtlib/fmt/issues/2011>`_). + +* Reintroduced ostream support to range formatters + (`#2014 <https://github.com/fmtlib/fmt/issues/2014>`_). + +* Worked around an issue with mixing std versions in gcc + (`#2017 <https://github.com/fmtlib/fmt/issues/2017>`_). + +7.1.2 - 2020-11-04 +------------------ + +* Fixed floating point formatting with large precision + (`#1976 <https://github.com/fmtlib/fmt/issues/1976>`_). + +7.1.1 - 2020-11-01 +------------------ + +* Fixed ABI compatibility with 7.0.x + (`#1961 <https://github.com/fmtlib/fmt/issues/1961>`_). + +* Added the ``FMT_ARM_ABI_COMPATIBILITY`` macro to work around ABI + incompatibility between GCC and Clang on ARM + (`#1919 <https://github.com/fmtlib/fmt/issues/1919>`_). + +* Worked around a SFINAE bug in GCC 8 + (`#1957 <https://github.com/fmtlib/fmt/issues/1957>`_). + +* Fixed linkage errors when building with GCC's LTO + (`#1955 <https://github.com/fmtlib/fmt/issues/1955>`_). + +* Fixed a compilation error when building without ``__builtin_clz`` or equivalent + (`#1968 <https://github.com/fmtlib/fmt/pull/1968>`_). + Thanks `@tohammer (Tobias Hammer) <https://github.com/tohammer>`_. + +* Fixed a sign conversion warning + (`#1964 <https://github.com/fmtlib/fmt/pull/1964>`_). + Thanks `@OptoCloud <https://github.com/OptoCloud>`_. + +7.1.0 - 2020-10-25 +------------------ + +* Switched from `Grisu3 + <https://www.cs.tufts.edu/~nr/cs257/archive/florian-loitsch/printf.pdf>`_ + to `Dragonbox <https://github.com/jk-jeon/dragonbox>`_ for the default + floating-point formatting which gives the shortest decimal representation + with round-trip guarantee and correct rounding + (`#1882 <https://github.com/fmtlib/fmt/pull/1882>`_, + `#1887 <https://github.com/fmtlib/fmt/pull/1887>`_, + `#1894 <https://github.com/fmtlib/fmt/pull/1894>`_). This makes {fmt} up to + 20-30x faster than common implementations of ``std::ostringstream`` and + ``sprintf`` on `dtoa-benchmark <https://github.com/fmtlib/dtoa-benchmark>`_ + and faster than double-conversion and RyĆ«: + + .. image:: https://user-images.githubusercontent.com/576385/ + 95684665-11719600-0ba8-11eb-8e5b-972ff4e49428.png + + It is possible to get even better performance at the cost of larger binary + size by compiling with the ``FMT_USE_FULL_CACHE_DRAGONBOX`` macro set to 1. + + Thanks `@jk-jeon (Junekey Jeon) <https://github.com/jk-jeon>`_. + +* Added an experimental unsynchronized file output API which, together with + `format string compilation <https://fmt.dev/latest/api.html#compile-api>`_, + can give `5-9 times speed up compared to fprintf + <https://www.zverovich.net/2020/08/04/optimal-file-buffer-size.html>`_ + on common platforms (`godbolt <https://godbolt.org/z/nsTcG8>`__): + + .. code:: c++ + + #include <fmt/os.h> + + int main() { + auto f = fmt::output_file("guide"); + f.print("The answer is {}.", 42); + } + +* Added a formatter for ``std::chrono::time_point<system_clock>`` + (`#1819 <https://github.com/fmtlib/fmt/issues/1819>`_, + `#1837 <https://github.com/fmtlib/fmt/pull/1837>`_). For example + (`godbolt <https://godbolt.org/z/c4M6fh>`__): + + .. code:: c++ + + #include <fmt/chrono.h> + + int main() { + auto now = std::chrono::system_clock::now(); + fmt::print("The time is {:%H:%M:%S}.\n", now); + } + + Thanks `@adamburgess (Adam Burgess) <https://github.com/adamburgess>`_. + +* Added support for ranges with non-const ``begin``/``end`` to ``fmt::join`` + (`#1784 <https://github.com/fmtlib/fmt/issues/1784>`_, + `#1786 <https://github.com/fmtlib/fmt/pull/1786>`_). For example + (`godbolt <https://godbolt.org/z/jP63Tv>`__): + + .. code:: c++ + + #include <fmt/ranges.h> + #include <range/v3/view/filter.hpp> + + int main() { + using std::literals::string_literals::operator""s; + auto strs = std::array{"a"s, "bb"s, "ccc"s}; + auto range = strs | ranges::views::filter( + [] (const std::string &x) { return x.size() != 2; } + ); + fmt::print("{}\n", fmt::join(range, "")); + } + + prints "accc". + + Thanks `@tonyelewis (Tony E Lewis) <https://github.com/tonyelewis>`_. + +* Added a ``memory_buffer::append`` overload that takes a range + (`#1806 <https://github.com/fmtlib/fmt/pull/1806>`_). + Thanks `@BRevzin (Barry Revzin) <https://github.com/BRevzin>`_. + +* Improved handling of single code units in ``FMT_COMPILE``. For example: + + .. code:: c++ + + #include <fmt/compile.h> + + char* f(char* buf) { + return fmt::format_to(buf, FMT_COMPILE("x{}"), 42); + } + + compiles to just (`godbolt <https://godbolt.org/z/5vncz3>`__): + + .. code:: asm + + _Z1fPc: + movb $120, (%rdi) + xorl %edx, %edx + cmpl $42, _ZN3fmt2v76detail10basic_dataIvE23zero_or_powers_of_10_32E+8(%rip) + movl $3, %eax + seta %dl + subl %edx, %eax + movzwl _ZN3fmt2v76detail10basic_dataIvE6digitsE+84(%rip), %edx + cltq + addq %rdi, %rax + movw %dx, -2(%rax) + ret + + Here a single ``mov`` instruction writes ``'x'`` (``$120``) to the output + buffer. + +* Added dynamic width support to format string compilation + (`#1809 <https://github.com/fmtlib/fmt/issues/1809>`_). + +* Improved error reporting for unformattable types: now you'll get the type name + directly in the error message instead of the note: + + .. code:: c++ + + #include <fmt/core.h> + + struct how_about_no {}; + + int main() { + fmt::print("{}", how_about_no()); + } + + Error (`godbolt <https://godbolt.org/z/GoxM4e>`__): + + ``fmt/core.h:1438:3: error: static_assert failed due to requirement + 'fmt::v7::formattable<how_about_no>()' "Cannot format an argument. + To make type T formattable provide a formatter<T> specialization: + https://fmt.dev/latest/api.html#udt" + ...`` + +* Added the `make_args_checked <https://fmt.dev/7.1.0/api.html#argument-lists>`_ + function template that allows you to write formatting functions with + compile-time format string checks and avoid binary code bloat + (`godbolt <https://godbolt.org/z/PEf9qr>`__): + + .. code:: c++ + + void vlog(const char* file, int line, fmt::string_view format, + fmt::format_args args) { + fmt::print("{}: {}: ", file, line); + fmt::vprint(format, args); + } + + template <typename S, typename... Args> + void log(const char* file, int line, const S& format, Args&&... args) { + vlog(file, line, format, + fmt::make_args_checked<Args...>(format, args...)); + } + + #define MY_LOG(format, ...) \ + log(__FILE__, __LINE__, FMT_STRING(format), __VA_ARGS__) + + MY_LOG("invalid squishiness: {}", 42); + +* Replaced ``snprintf`` fallback with a faster internal IEEE 754 ``float`` and + ``double`` formatter for arbitrary precision. For example + (`godbolt <https://godbolt.org/z/dPhWvj>`__): + + .. code:: c++ + + #include <fmt/core.h> + + int main() { + fmt::print("{:.500}\n", 4.9406564584124654E-324); + } + + prints + + ``4.9406564584124654417656879286822137236505980261432476442558568250067550727020875186529983636163599237979656469544571773092665671035593979639877479601078187812630071319031140452784581716784898210368871863605699873072305000638740915356498438731247339727316961514003171538539807412623856559117102665855668676818703956031062493194527159149245532930545654440112748012970999954193198940908041656332452475714786901472678015935523861155013480352649347201937902681071074917033322268447533357208324319360923829e-324``. + +* Made ``format_to_n`` and ``formatted_size`` part of the `core API + <https://fmt.dev/latest/api.html#core-api>`__ + (`godbolt <https://godbolt.org/z/sPjY1K>`__): + + .. code:: c++ + + #include <fmt/core.h> + + int main() { + char buffer[10]; + auto result = fmt::format_to_n(buffer, sizeof(buffer), "{}", 42); + } + +* Added ``fmt::format_to_n`` overload with format string compilation + (`#1764 <https://github.com/fmtlib/fmt/issues/1764>`_, + `#1767 <https://github.com/fmtlib/fmt/pull/1767>`_, + `#1869 <https://github.com/fmtlib/fmt/pull/1869>`_). For example + (`godbolt <https://godbolt.org/z/93h86q>`__): + + .. code:: c++ + + #include <fmt/compile.h> + + int main() { + char buffer[8]; + fmt::format_to_n(buffer, sizeof(buffer), FMT_COMPILE("{}"), 42); + } + + Thanks `@Kurkin (Dmitry Kurkin) <https://github.com/Kurkin>`_, + `@alexezeder (Alexey Ochapov) <https://github.com/alexezeder>`_. + +* Added ``fmt::format_to`` overload that take ``text_style`` + (`#1593 <https://github.com/fmtlib/fmt/issues/1593>`_, + `#1842 <https://github.com/fmtlib/fmt/issues/1842>`_, + `#1843 <https://github.com/fmtlib/fmt/pull/1843>`_). For example + (`godbolt <https://godbolt.org/z/91153r>`__): + + .. code:: c++ + + #include <fmt/color.h> + + int main() { + std::string out; + fmt::format_to(std::back_inserter(out), + fmt::emphasis::bold | fg(fmt::color::red), + "The answer is {}.", 42); + } + + Thanks `@Naios (Denis Blank) <https://github.com/Naios>`_. + +* Made the ``#`` specifier emit trailing zeros in addition to the decimal point + (`#1797 <https://github.com/fmtlib/fmt/issues/1797>`_). For example + (`godbolt <https://godbolt.org/z/bhdcW9>`__): + + .. code:: c++ + + #include <fmt/core.h> + + int main() { + fmt::print("{:#.2g}", 0.5); + } + + prints ``0.50``. + +* Changed the default floating point format to not include ``.0`` for + consistency with ``std::format`` and ``std::to_chars`` + (`#1893 <https://github.com/fmtlib/fmt/issues/1893>`_, + `#1943 <https://github.com/fmtlib/fmt/issues/1943>`_). It is possible to get + the decimal point and trailing zero with the ``#`` specifier. + +* Fixed an issue with floating-point formatting that could result in addition of + a non-significant trailing zero in rare cases e.g. ``1.00e-34`` instead of + ``1.0e-34`` (`#1873 <https://github.com/fmtlib/fmt/issues/1873>`_, + `#1917 <https://github.com/fmtlib/fmt/issues/1917>`_). + +* Made ``fmt::to_string`` fallback on ``ostream`` insertion operator if + the ``formatter`` specialization is not provided + (`#1815 <https://github.com/fmtlib/fmt/issues/1815>`_, + `#1829 <https://github.com/fmtlib/fmt/pull/1829>`_). + Thanks `@alexezeder (Alexey Ochapov) <https://github.com/alexezeder>`_. + +* Added support for the append mode to the experimental file API and + improved ``fcntl.h`` detection. + (`#1847 <https://github.com/fmtlib/fmt/pull/1847>`_, + `#1848 <https://github.com/fmtlib/fmt/pull/1848>`_). + Thanks `@t-wiser <https://github.com/t-wiser>`_. + +* Fixed handling of types that have both an implicit conversion operator and + an overloaded ``ostream`` insertion operator + (`#1766 <https://github.com/fmtlib/fmt/issues/1766>`_). + +* Fixed a slicing issue in an internal iterator type + (`#1822 <https://github.com/fmtlib/fmt/pull/1822>`_). + Thanks `@BRevzin (Barry Revzin) <https://github.com/BRevzin>`_. + +* Fixed an issue in locale-specific integer formatting + (`#1927 <https://github.com/fmtlib/fmt/issues/1927>`_). + +* Fixed handling of exotic code unit types + (`#1870 <https://github.com/fmtlib/fmt/issues/1870>`_, + `#1932 <https://github.com/fmtlib/fmt/issues/1932>`_). + +* Improved ``FMT_ALWAYS_INLINE`` + (`#1878 <https://github.com/fmtlib/fmt/pull/1878>`_). + Thanks `@jk-jeon (Junekey Jeon) <https://github.com/jk-jeon>`_. + +* Removed dependency on ``windows.h`` + (`#1900 <https://github.com/fmtlib/fmt/pull/1900>`_). + Thanks `@bernd5 (Bernd Baumanns) <https://github.com/bernd5>`_. + +* Optimized counting of decimal digits on MSVC + (`#1890 <https://github.com/fmtlib/fmt/pull/1890>`_). + Thanks `@mwinterb <https://github.com/mwinterb>`_. + +* Improved documentation + (`#1772 <https://github.com/fmtlib/fmt/issues/1772>`_, + `#1775 <https://github.com/fmtlib/fmt/pull/1775>`_, + `#1792 <https://github.com/fmtlib/fmt/pull/1792>`_, + `#1838 <https://github.com/fmtlib/fmt/pull/1838>`_, + `#1888 <https://github.com/fmtlib/fmt/pull/1888>`_, + `#1918 <https://github.com/fmtlib/fmt/pull/1918>`_, + `#1939 <https://github.com/fmtlib/fmt/pull/1939>`_). + Thanks `@leolchat (LĂ©onard GĂ©rard) <https://github.com/leolchat>`_, + `@pepsiman (Malcolm Parsons) <https://github.com/pepsiman>`_, + `@Klaim (JoĂ«l Lamotte) <https://github.com/Klaim>`_, + `@ravijanjam (Ravi J) <https://github.com/ravijanjam>`_, + `@francesco-st <https://github.com/francesco-st>`_, + `@udnaan (Adnan) <https://github.com/udnaan>`_. + +* Added the ``FMT_REDUCE_INT_INSTANTIATIONS`` CMake option that reduces the + binary code size at the cost of some integer formatting performance. This can + be useful for extremely memory-constrained embedded systems + (`#1778 <https://github.com/fmtlib/fmt/issues/1778>`_, + `#1781 <https://github.com/fmtlib/fmt/pull/1781>`_). + Thanks `@kammce (Khalil Estell) <https://github.com/kammce>`_. + +* Added the ``FMT_USE_INLINE_NAMESPACES`` macro to control usage of inline + namespaces (`#1945 <https://github.com/fmtlib/fmt/pull/1945>`_). + Thanks `@darklukee <https://github.com/darklukee>`_. + +* Improved build configuration + (`#1760 <https://github.com/fmtlib/fmt/pull/1760>`_, + `#1770 <https://github.com/fmtlib/fmt/pull/1770>`_, + `#1779 <https://github.com/fmtlib/fmt/issues/1779>`_, + `#1783 <https://github.com/fmtlib/fmt/pull/1783>`_, + `#1823 <https://github.com/fmtlib/fmt/pull/1823>`_). + Thanks `@dvetutnev (Dmitriy Vetutnev) <https://github.com/dvetutnev>`_, + `@xvitaly (Vitaly Zaitsev) <https://github.com/xvitaly>`_, + `@tambry (Raul Tambre) <https://github.com/tambry>`_, + `@medithe <https://github.com/medithe>`_, + `@martinwuehrer (Martin WĂŒhrer) <https://github.com/martinwuehrer>`_. + +* Fixed various warnings and compilation issues + (`#1790 <https://github.com/fmtlib/fmt/pull/1790>`_, + `#1802 <https://github.com/fmtlib/fmt/pull/1802>`_, + `#1808 <https://github.com/fmtlib/fmt/pull/1808>`_, + `#1810 <https://github.com/fmtlib/fmt/issues/1810>`_, + `#1811 <https://github.com/fmtlib/fmt/issues/1811>`_, + `#1812 <https://github.com/fmtlib/fmt/pull/1812>`_, + `#1814 <https://github.com/fmtlib/fmt/pull/1814>`_, + `#1816 <https://github.com/fmtlib/fmt/pull/1816>`_, + `#1817 <https://github.com/fmtlib/fmt/pull/1817>`_, + `#1818 <https://github.com/fmtlib/fmt/pull/1818>`_, + `#1825 <https://github.com/fmtlib/fmt/issues/1825>`_, + `#1836 <https://github.com/fmtlib/fmt/pull/1836>`_, + `#1855 <https://github.com/fmtlib/fmt/pull/1855>`_, + `#1856 <https://github.com/fmtlib/fmt/pull/1856>`_, + `#1860 <https://github.com/fmtlib/fmt/pull/1860>`_, + `#1877 <https://github.com/fmtlib/fmt/pull/1877>`_, + `#1879 <https://github.com/fmtlib/fmt/pull/1879>`_, + `#1880 <https://github.com/fmtlib/fmt/pull/1880>`_, + `#1896 <https://github.com/fmtlib/fmt/issues/1896>`_, + `#1897 <https://github.com/fmtlib/fmt/pull/1897>`_, + `#1898 <https://github.com/fmtlib/fmt/pull/1898>`_, + `#1904 <https://github.com/fmtlib/fmt/issues/1904>`_, + `#1908 <https://github.com/fmtlib/fmt/pull/1908>`_, + `#1911 <https://github.com/fmtlib/fmt/issues/1911>`_, + `#1912 <https://github.com/fmtlib/fmt/issues/1912>`_, + `#1928 <https://github.com/fmtlib/fmt/issues/1928>`_, + `#1929 <https://github.com/fmtlib/fmt/pull/1929>`_, + `#1935 <https://github.com/fmtlib/fmt/issues/1935>`_ + `#1937 <https://github.com/fmtlib/fmt/pull/1937>`_, + `#1942 <https://github.com/fmtlib/fmt/pull/1942>`_, + `#1949 <https://github.com/fmtlib/fmt/issues/1949>`_). + Thanks `@TheQwertiest <https://github.com/TheQwertiest>`_, + `@medithe <https://github.com/medithe>`_, + `@martinwuehrer (Martin WĂŒhrer) <https://github.com/martinwuehrer>`_, + `@n16h7hunt3r <https://github.com/n16h7hunt3r>`_, + `@Othereum (Seokjin Lee) <https://github.com/Othereum>`_, + `@gsjaardema (Greg Sjaardema) <https://github.com/gsjaardema>`_, + `@AlexanderLanin (Alexander Lanin) <https://github.com/AlexanderLanin>`_, + `@gcerretani (Giovanni Cerretani) <https://github.com/gcerretani>`_, + `@chronoxor (Ivan Shynkarenka) <https://github.com/chronoxor>`_, + `@noizefloor (Jan Schwers) <https://github.com/noizefloor>`_, + `@akohlmey (Axel Kohlmeyer) <https://github.com/akohlmey>`_, + `@jk-jeon (Junekey Jeon) <https://github.com/jk-jeon>`_, + `@rimathia <https://github.com/rimathia>`_, + `@rglarix (Riccardo Ghetta (larix)) <https://github.com/rglarix>`_, + `@moiwi <https://github.com/moiwi>`_, + `@heckad (Kazantcev Andrey) <https://github.com/heckad>`_, + `@MarcDirven <https://github.com/MarcDirven>`_. + `@BartSiwek (Bart Siwek) <https://github.com/BartSiwek>`_, + `@darklukee <https://github.com/darklukee>`_. + +7.0.3 - 2020-08-06 +------------------ + +* Worked around broken ``numeric_limits`` for 128-bit integers + (`#1787 <https://github.com/fmtlib/fmt/issues/1787>`_). + +* Added error reporting on missing named arguments + (`#1796 <https://github.com/fmtlib/fmt/issues/1796>`_). + +* Stopped using 128-bit integers with clang-cl + (`#1800 <https://github.com/fmtlib/fmt/pull/1800>`_). + Thanks `@Kingcom <https://github.com/Kingcom>`_. + +* Fixed issues in locale-specific integer formatting + (`#1782 <https://github.com/fmtlib/fmt/issues/1782>`_, + `#1801 <https://github.com/fmtlib/fmt/issues/1801>`_). + +7.0.2 - 2020-07-29 +------------------ + +* Worked around broken ``numeric_limits`` for 128-bit integers + (`#1725 <https://github.com/fmtlib/fmt/issues/1725>`_). + +* Fixed compatibility with CMake 3.4 + (`#1779 <https://github.com/fmtlib/fmt/issues/1779>`_). + +* Fixed handling of digit separators in locale-specific formatting + (`#1782 <https://github.com/fmtlib/fmt/issues/1782>`_). + +7.0.1 - 2020-07-07 +------------------ + +* Updated the inline version namespace name. + +* Worked around a gcc bug in mangling of alias templates + (`#1753 <https://github.com/fmtlib/fmt/issues/1753>`_). + +* Fixed a linkage error on Windows + (`#1757 <https://github.com/fmtlib/fmt/issues/1757>`_). + Thanks `@Kurkin (Dmitry Kurkin) <https://github.com/Kurkin>`_. + +* Fixed minor issues with the documentation. + +7.0.0 - 2020-07-05 +------------------ + +* Reduced the library size. For example, on macOS a stripped test binary + statically linked with {fmt} `shrank from ~368k to less than 100k + <http://www.zverovich.net/2020/05/21/reducing-library-size.html>`_. + +* Added a simpler and more efficient `format string compilation API + <https://fmt.dev/7.0.0/api.html#compile-api>`_: + + .. code:: c++ + + #include <fmt/compile.h> + + // Converts 42 into std::string using the most efficient method and no + // runtime format string processing. + std::string s = fmt::format(FMT_COMPILE("{}"), 42); + + The old ``fmt::compile`` API is now deprecated. + +* Optimized integer formatting: ``format_to`` with format string compilation + and a stack-allocated buffer is now `faster than to_chars on both + libc++ and libstdc++ + <http://www.zverovich.net/2020/06/13/fast-int-to-string-revisited.html>`_. + +* Optimized handling of small format strings. For example, + + .. code:: c++ + + fmt::format("Result: {}: ({},{},{},{})", str1, str2, str3, str4, str5) + + is now ~40% faster (`#1685 <https://github.com/fmtlib/fmt/issues/1685>`_). + +* Applied extern templates to improve compile times when using the core API + and ``fmt/format.h`` (`#1452 <https://github.com/fmtlib/fmt/issues/1452>`_). + For example, on macOS with clang the compile time of a test translation unit + dropped from 2.3s to 0.3s with ``-O2`` and from 0.6s to 0.3s with the default + settings (``-O0``). + + Before (``-O2``):: + + % time c++ -c test.cc -I include -std=c++17 -O2 + c++ -c test.cc -I include -std=c++17 -O2 2.22s user 0.08s system 99% cpu 2.311 total + + After (``-O2``):: + + % time c++ -c test.cc -I include -std=c++17 -O2 + c++ -c test.cc -I include -std=c++17 -O2 0.26s user 0.04s system 98% cpu 0.303 total + + Before (default):: + + % time c++ -c test.cc -I include -std=c++17 + c++ -c test.cc -I include -std=c++17 0.53s user 0.06s system 98% cpu 0.601 total + + After (default):: + + % time c++ -c test.cc -I include -std=c++17 + c++ -c test.cc -I include -std=c++17 0.24s user 0.06s system 98% cpu 0.301 total + + It is still recommended to use ``fmt/core.h`` instead of ``fmt/format.h`` but + the compile time difference is now smaller. Thanks + `@alex3d <https://github.com/alex3d>`_ for the suggestion. + +* Named arguments are now stored on stack (no dynamic memory allocations) and + the compiled code is more compact and efficient. For example + + .. code:: c++ + + #include <fmt/core.h> + + int main() { + fmt::print("The answer is {answer}\n", fmt::arg("answer", 42)); + } + + compiles to just (`godbolt <https://godbolt.org/z/NcfEp_>`__) + + .. code:: asm + + .LC0: + .string "answer" + .LC1: + .string "The answer is {answer}\n" + main: + sub rsp, 56 + mov edi, OFFSET FLAT:.LC1 + mov esi, 23 + movabs rdx, 4611686018427387905 + lea rax, [rsp+32] + lea rcx, [rsp+16] + mov QWORD PTR [rsp+8], 1 + mov QWORD PTR [rsp], rax + mov DWORD PTR [rsp+16], 42 + mov QWORD PTR [rsp+32], OFFSET FLAT:.LC0 + mov DWORD PTR [rsp+40], 0 + call fmt::v6::vprint(fmt::v6::basic_string_view<char>, + fmt::v6::format_args) + xor eax, eax + add rsp, 56 + ret + + .L.str.1: + .asciz "answer" + +* Implemented compile-time checks for dynamic width and precision + (`#1614 <https://github.com/fmtlib/fmt/issues/1614>`_): + + .. code:: c++ + + #include <fmt/format.h> + + int main() { + fmt::print(FMT_STRING("{0:{1}}"), 42); + } + + now gives a compilation error because argument 1 doesn't exist:: + + In file included from test.cc:1: + include/fmt/format.h:2726:27: error: constexpr variable 'invalid_format' must be + initialized by a constant expression + FMT_CONSTEXPR_DECL bool invalid_format = + ^ + ... + include/fmt/core.h:569:26: note: in call to + '&checker(s, {}).context_->on_error(&"argument not found"[0])' + if (id >= num_args_) on_error("argument not found"); + ^ + +* Added sentinel support to ``fmt::join`` + (`#1689 <https://github.com/fmtlib/fmt/pull/1689>`_) + + .. code:: c++ + + struct zstring_sentinel {}; + bool operator==(const char* p, zstring_sentinel) { return *p == '\0'; } + bool operator!=(const char* p, zstring_sentinel) { return *p != '\0'; } + + struct zstring { + const char* p; + const char* begin() const { return p; } + zstring_sentinel end() const { return {}; } + }; + + auto s = fmt::format("{}", fmt::join(zstring{"hello"}, "_")); + // s == "h_e_l_l_o" + + Thanks `@BRevzin (Barry Revzin) <https://github.com/BRevzin>`_. + +* Added support for named arguments, ``clear`` and ``reserve`` to + ``dynamic_format_arg_store`` + (`#1655 <https://github.com/fmtlib/fmt/issues/1655>`_, + `#1663 <https://github.com/fmtlib/fmt/pull/1663>`_, + `#1674 <https://github.com/fmtlib/fmt/pull/1674>`_, + `#1677 <https://github.com/fmtlib/fmt/pull/1677>`_). + Thanks `@vsolontsov-ll (Vladimir Solontsov) + <https://github.com/vsolontsov-ll>`_. + +* Added support for the ``'c'`` format specifier to integral types for + compatibility with ``std::format`` + (`#1652 <https://github.com/fmtlib/fmt/issues/1652>`_). + +* Replaced the ``'n'`` format specifier with ``'L'`` for compatibility with + ``std::format`` (`#1624 <https://github.com/fmtlib/fmt/issues/1624>`_). + The ``'n'`` specifier can be enabled via the ``FMT_DEPRECATED_N_SPECIFIER`` + macro. + +* The ``'='`` format specifier is now disabled by default for compatibility with + ``std::format``. It can be enabled via the ``FMT_DEPRECATED_NUMERIC_ALIGN`` + macro. + +* Removed the following deprecated APIs: + + * ``FMT_STRING_ALIAS`` and ``fmt`` macros - replaced by ``FMT_STRING`` + * ``fmt::basic_string_view::char_type`` - replaced by + ``fmt::basic_string_view::value_type`` + * ``convert_to_int`` + * ``format_arg_store::types`` + * ``*parse_context`` - replaced by ``*format_parse_context`` + * ``FMT_DEPRECATED_INCLUDE_OS`` + * ``FMT_DEPRECATED_PERCENT`` - incompatible with ``std::format`` + * ``*writer`` - replaced by compiled format API + +* Renamed the ``internal`` namespace to ``detail`` + (`#1538 <https://github.com/fmtlib/fmt/issues/1538>`_). The former is still + provided as an alias if the ``FMT_USE_INTERNAL`` macro is defined. + +* Improved compatibility between ``fmt::printf`` with the standard specs + (`#1595 <https://github.com/fmtlib/fmt/issues/1595>`_, + `#1682 <https://github.com/fmtlib/fmt/pull/1682>`_, + `#1683 <https://github.com/fmtlib/fmt/pull/1683>`_, + `#1687 <https://github.com/fmtlib/fmt/pull/1687>`_, + `#1699 <https://github.com/fmtlib/fmt/pull/1699>`_). + Thanks `@rimathia <https://github.com/rimathia>`_. + +* Fixed handling of ``operator<<`` overloads that use ``copyfmt`` + (`#1666 <https://github.com/fmtlib/fmt/issues/1666>`_). + +* Added the ``FMT_OS`` CMake option to control inclusion of OS-specific APIs + in the fmt target. This can be useful for embedded platforms + (`#1654 <https://github.com/fmtlib/fmt/issues/1654>`_, + `#1656 <https://github.com/fmtlib/fmt/pull/1656>`_). + Thanks `@kwesolowski (Krzysztof Wesolowski) + <https://github.com/kwesolowski>`_. + +* Replaced ``FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION`` with the ``FMT_FUZZ`` + macro to prevent interferring with fuzzing of projects using {fmt} + (`#1650 <https://github.com/fmtlib/fmt/pull/1650>`_). + Thanks `@asraa (Asra Ali) <https://github.com/asraa>`_. + +* Fixed compatibility with emscripten + (`#1636 <https://github.com/fmtlib/fmt/issues/1636>`_, + `#1637 <https://github.com/fmtlib/fmt/pull/1637>`_). + Thanks `@ArthurSonzogni (Arthur Sonzogni) + <https://github.com/ArthurSonzogni>`_. + +* Improved documentation + (`#704 <https://github.com/fmtlib/fmt/issues/704>`_, + `#1643 <https://github.com/fmtlib/fmt/pull/1643>`_, + `#1660 <https://github.com/fmtlib/fmt/pull/1660>`_, + `#1681 <https://github.com/fmtlib/fmt/pull/1681>`_, + `#1691 <https://github.com/fmtlib/fmt/pull/1691>`_, + `#1706 <https://github.com/fmtlib/fmt/pull/1706>`_, + `#1714 <https://github.com/fmtlib/fmt/pull/1714>`_, + `#1721 <https://github.com/fmtlib/fmt/pull/1721>`_, + `#1739 <https://github.com/fmtlib/fmt/pull/1739>`_, + `#1740 <https://github.com/fmtlib/fmt/pull/1740>`_, + `#1741 <https://github.com/fmtlib/fmt/pull/1741>`_, + `#1751 <https://github.com/fmtlib/fmt/pull/1751>`_). + Thanks `@senior7515 (Alexander Gallego) <https://github.com/senior7515>`_, + `@lsr0 (Lindsay Roberts) <https://github.com/lsr0>`_, + `@puetzk (Kevin Puetz) <https://github.com/puetzk>`_, + `@fpelliccioni (Fernando Pelliccioni) <https://github.com/fpelliccioni>`_, + Alexey Kuzmenko, `@jelly (jelle van der Waa) <https://github.com/jelly>`_, + `@claremacrae (Clare Macrae) <https://github.com/claremacrae>`_, + `@jiapengwen (æäœłéč) <https://github.com/jiapengwen>`_, + `@gsjaardema (Greg Sjaardema) <https://github.com/gsjaardema>`_, + `@alexey-milovidov <https://github.com/alexey-milovidov>`_. + +* Implemented various build configuration fixes and improvements + (`#1603 <https://github.com/fmtlib/fmt/pull/1603>`_, + `#1657 <https://github.com/fmtlib/fmt/pull/1657>`_, + `#1702 <https://github.com/fmtlib/fmt/pull/1702>`_, + `#1728 <https://github.com/fmtlib/fmt/pull/1728>`_). + Thanks `@scramsby (Scott Ramsby) <https://github.com/scramsby>`_, + `@jtojnar (Jan Tojnar) <https://github.com/jtojnar>`_, + `@orivej (Orivej Desh) <https://github.com/orivej>`_, + `@flagarde <https://github.com/flagarde>`_. + +* Fixed various warnings and compilation issues + (`#1616 <https://github.com/fmtlib/fmt/pull/1616>`_, + `#1620 <https://github.com/fmtlib/fmt/issues/1620>`_, + `#1622 <https://github.com/fmtlib/fmt/issues/1622>`_, + `#1625 <https://github.com/fmtlib/fmt/issues/1625>`_, + `#1627 <https://github.com/fmtlib/fmt/pull/1627>`_, + `#1628 <https://github.com/fmtlib/fmt/issues/1628>`_, + `#1629 <https://github.com/fmtlib/fmt/pull/1629>`_, + `#1631 <https://github.com/fmtlib/fmt/issues/1631>`_, + `#1633 <https://github.com/fmtlib/fmt/pull/1633>`_, + `#1649 <https://github.com/fmtlib/fmt/pull/1649>`_, + `#1658 <https://github.com/fmtlib/fmt/issues/1658>`_, + `#1661 <https://github.com/fmtlib/fmt/pull/1661>`_, + `#1667 <https://github.com/fmtlib/fmt/pull/1667>`_, + `#1668 <https://github.com/fmtlib/fmt/issues/1668>`_, + `#1669 <https://github.com/fmtlib/fmt/pull/1669>`_, + `#1692 <https://github.com/fmtlib/fmt/issues/1692>`_, + `#1696 <https://github.com/fmtlib/fmt/pull/1696>`_, + `#1697 <https://github.com/fmtlib/fmt/pull/1697>`_, + `#1707 <https://github.com/fmtlib/fmt/issues/1707>`_, + `#1712 <https://github.com/fmtlib/fmt/pull/1712>`_, + `#1716 <https://github.com/fmtlib/fmt/pull/1716>`_, + `#1722 <https://github.com/fmtlib/fmt/pull/1722>`_, + `#1724 <https://github.com/fmtlib/fmt/issues/1724>`_, + `#1729 <https://github.com/fmtlib/fmt/pull/1729>`_, + `#1738 <https://github.com/fmtlib/fmt/pull/1738>`_, + `#1742 <https://github.com/fmtlib/fmt/issues/1742>`_, + `#1743 <https://github.com/fmtlib/fmt/issues/1743>`_, + `#1744 <https://github.com/fmtlib/fmt/pull/1744>`_, + `#1747 <https://github.com/fmtlib/fmt/issues/1747>`_, + `#1750 <https://github.com/fmtlib/fmt/pull/1750>`_). + Thanks `@gsjaardema (Greg Sjaardema) <https://github.com/gsjaardema>`_, + `@gabime (Gabi Melman) <https://github.com/gabime>`_, + `@johnor (Johan) <https://github.com/johnor>`_, + `@Kurkin (Dmitry Kurkin) <https://github.com/Kurkin>`_, + `@invexed (James Beach) <https://github.com/invexed>`_, + `@peterbell10 <https://github.com/peterbell10>`_, + `@daixtrose (Markus Werle) <https://github.com/daixtrose>`_, + `@petrutlucian94 (Lucian Petrut) <https://github.com/petrutlucian94>`_, + `@Neargye (Daniil Goncharov) <https://github.com/Neargye>`_, + `@ambitslix (Attila M. Szilagyi) <https://github.com/ambitslix>`_, + `@gabime (Gabi Melman) <https://github.com/gabime>`_, + `@erthink (Leonid Yuriev) <https://github.com/erthink>`_, + `@tohammer (Tobias Hammer) <https://github.com/tohammer>`_, + `@0x8000-0000 (Florin Iucha) <https://github.com/0x8000-0000>`_. + +6.2.1 - 2020-05-09 +------------------ + +* Fixed ostream support in ``sprintf`` + (`#1631 <https://github.com/fmtlib/fmt/issues/1631>`_). + +* Fixed type detection when using implicit conversion to ``string_view`` and + ostream ``operator<<`` inconsistently + (`#1662 <https://github.com/fmtlib/fmt/issues/1662>`_). + +6.2.0 - 2020-04-05 +------------------ + +* Improved error reporting when trying to format an object of a non-formattable + type: + + .. code:: c++ + + fmt::format("{}", S()); + + now gives:: + + include/fmt/core.h:1015:5: error: static_assert failed due to requirement + 'formattable' "Cannot format argument. To make type T formattable provide a + formatter<T> specialization: + https://fmt.dev/latest/api.html#formatting-user-defined-types" + static_assert( + ^ + ... + note: in instantiation of function template specialization + 'fmt::v6::format<char [3], S, char>' requested here + fmt::format("{}", S()); + ^ + + if ``S`` is not formattable. + +* Reduced the library size by ~10%. + +* Always print decimal point if ``#`` is specified + (`#1476 <https://github.com/fmtlib/fmt/issues/1476>`_, + `#1498 <https://github.com/fmtlib/fmt/issues/1498>`_): + + .. code:: c++ + + fmt::print("{:#.0f}", 42.0); + + now prints ``42.`` + +* Implemented the ``'L'`` specifier for locale-specific numeric formatting to + improve compatibility with ``std::format``. The ``'n'`` specifier is now + deprecated and will be removed in the next major release. + +* Moved OS-specific APIs such as ``windows_error`` from ``fmt/format.h`` to + ``fmt/os.h``. You can define ``FMT_DEPRECATED_INCLUDE_OS`` to automatically + include ``fmt/os.h`` from ``fmt/format.h`` for compatibility but this will be + disabled in the next major release. + +* Added precision overflow detection in floating-point formatting. + +* Implemented detection of invalid use of ``fmt::arg``. + +* Used ``type_identity`` to block unnecessary template argument deduction. + Thanks Tim Song. + +* Improved UTF-8 handling + (`#1109 <https://github.com/fmtlib/fmt/issues/1109>`_): + + .. code:: c++ + + fmt::print("â{0:â^{2}}â\n" + "â{1: ^{2}}â\n" + "â{0:â^{2}}â\n", "", "ĐŃĐžĐČĐ”Ń, ĐŒĐžŃ!", 20); + + now prints:: + + ââââââââââââââââââââââ + â ĐŃĐžĐČĐ”Ń, ĐŒĐžŃ! â + ââââââââââââââââââââââ + + on systems that support Unicode. + +* Added experimental dynamic argument storage + (`#1170 <https://github.com/fmtlib/fmt/issues/1170>`_, + `#1584 <https://github.com/fmtlib/fmt/pull/1584>`_): + + .. code:: c++ + + fmt::dynamic_format_arg_store<fmt::format_context> store; + store.push_back("answer"); + store.push_back(42); + fmt::vprint("The {} is {}.\n", store); + + prints:: + + The answer is 42. + + Thanks `@vsolontsov-ll (Vladimir Solontsov) + <https://github.com/vsolontsov-ll>`_. + +* Made ``fmt::join`` accept ``initializer_list`` + (`#1591 <https://github.com/fmtlib/fmt/pull/1591>`_). + Thanks `@Rapotkinnik (Nikolay Rapotkin) <https://github.com/Rapotkinnik>`_. + +* Fixed handling of empty tuples + (`#1588 <https://github.com/fmtlib/fmt/issues/1588>`_). + +* Fixed handling of output iterators in ``format_to_n`` + (`#1506 <https://github.com/fmtlib/fmt/issues/1506>`_). + +* Fixed formatting of ``std::chrono::duration`` types to wide output + (`#1533 <https://github.com/fmtlib/fmt/pull/1533>`_). + Thanks `@zeffy (pilao) <https://github.com/zeffy>`_. + +* Added const ``begin`` and ``end`` overload to buffers + (`#1553 <https://github.com/fmtlib/fmt/pull/1553>`_). + Thanks `@dominicpoeschko <https://github.com/dominicpoeschko>`_. + +* Added the ability to disable floating-point formatting via ``FMT_USE_FLOAT``, + ``FMT_USE_DOUBLE`` and ``FMT_USE_LONG_DOUBLE`` macros for extremely + memory-constrained embedded system + (`#1590 <https://github.com/fmtlib/fmt/pull/1590>`_). + Thanks `@albaguirre (Alberto Aguirre) <https://github.com/albaguirre>`_. + +* Made ``FMT_STRING`` work with ``constexpr`` ``string_view`` + (`#1589 <https://github.com/fmtlib/fmt/pull/1589>`_). + Thanks `@scramsby (Scott Ramsby) <https://github.com/scramsby>`_. + +* Implemented a minor optimization in the format string parser + (`#1560 <https://github.com/fmtlib/fmt/pull/1560>`_). + Thanks `@IkarusDeveloper <https://github.com/IkarusDeveloper>`_. + +* Improved attribute detection + (`#1469 <https://github.com/fmtlib/fmt/pull/1469>`_, + `#1475 <https://github.com/fmtlib/fmt/pull/1475>`_, + `#1576 <https://github.com/fmtlib/fmt/pull/1576>`_). + Thanks `@federico-busato (Federico) <https://github.com/federico-busato>`_, + `@chronoxor (Ivan Shynkarenka) <https://github.com/chronoxor>`_, + `@refnum <https://github.com/refnum>`_. + +* Improved documentation + (`#1481 <https://github.com/fmtlib/fmt/pull/1481>`_, + `#1523 <https://github.com/fmtlib/fmt/pull/1523>`_). + Thanks `@JackBoosY (Jack·Boos·Yu) <https://github.com/JackBoosY>`_, + `@imba-tjd (è°äčéŒ) <https://github.com/imba-tjd>`_. + +* Fixed symbol visibility on Linux when compiling with ``-fvisibility=hidden`` + (`#1535 <https://github.com/fmtlib/fmt/pull/1535>`_). + Thanks `@milianw (Milian Wolff) <https://github.com/milianw>`_. + +* Implemented various build configuration fixes and improvements + (`#1264 <https://github.com/fmtlib/fmt/issues/1264>`_, + `#1460 <https://github.com/fmtlib/fmt/issues/1460>`_, + `#1534 <https://github.com/fmtlib/fmt/pull/1534>`_, + `#1536 <https://github.com/fmtlib/fmt/issues/1536>`_, + `#1545 <https://github.com/fmtlib/fmt/issues/1545>`_, + `#1546 <https://github.com/fmtlib/fmt/pull/1546>`_, + `#1566 <https://github.com/fmtlib/fmt/issues/1566>`_, + `#1582 <https://github.com/fmtlib/fmt/pull/1582>`_, + `#1597 <https://github.com/fmtlib/fmt/issues/1597>`_, + `#1598 <https://github.com/fmtlib/fmt/pull/1598>`_). + Thanks `@ambitslix (Attila M. Szilagyi) <https://github.com/ambitslix>`_, + `@jwillikers (Jordan Williams) <https://github.com/jwillikers>`_, + `@stac47 (Laurent Stacul) <https://github.com/stac47>`_. + +* Fixed various warnings and compilation issues + (`#1433 <https://github.com/fmtlib/fmt/pull/1433>`_, + `#1461 <https://github.com/fmtlib/fmt/issues/1461>`_, + `#1470 <https://github.com/fmtlib/fmt/pull/1470>`_, + `#1480 <https://github.com/fmtlib/fmt/pull/1480>`_, + `#1485 <https://github.com/fmtlib/fmt/pull/1485>`_, + `#1492 <https://github.com/fmtlib/fmt/pull/1492>`_, + `#1493 <https://github.com/fmtlib/fmt/issues/1493>`_, + `#1504 <https://github.com/fmtlib/fmt/issues/1504>`_, + `#1505 <https://github.com/fmtlib/fmt/pull/1505>`_, + `#1512 <https://github.com/fmtlib/fmt/pull/1512>`_, + `#1515 <https://github.com/fmtlib/fmt/issues/1515>`_, + `#1516 <https://github.com/fmtlib/fmt/pull/1516>`_, + `#1518 <https://github.com/fmtlib/fmt/pull/1518>`_, + `#1519 <https://github.com/fmtlib/fmt/pull/1519>`_, + `#1520 <https://github.com/fmtlib/fmt/pull/1520>`_, + `#1521 <https://github.com/fmtlib/fmt/pull/1521>`_, + `#1522 <https://github.com/fmtlib/fmt/pull/1522>`_, + `#1524 <https://github.com/fmtlib/fmt/issues/1524>`_, + `#1530 <https://github.com/fmtlib/fmt/pull/1530>`_, + `#1531 <https://github.com/fmtlib/fmt/issues/1531>`_, + `#1532 <https://github.com/fmtlib/fmt/pull/1532>`_, + `#1539 <https://github.com/fmtlib/fmt/issues/1539>`_, + `#1547 <https://github.com/fmtlib/fmt/issues/1547>`_, + `#1548 <https://github.com/fmtlib/fmt/issues/1548>`_, + `#1554 <https://github.com/fmtlib/fmt/pull/1554>`_, + `#1567 <https://github.com/fmtlib/fmt/issues/1567>`_, + `#1568 <https://github.com/fmtlib/fmt/pull/1568>`_, + `#1569 <https://github.com/fmtlib/fmt/pull/1569>`_, + `#1571 <https://github.com/fmtlib/fmt/pull/1571>`_, + `#1573 <https://github.com/fmtlib/fmt/pull/1573>`_, + `#1575 <https://github.com/fmtlib/fmt/pull/1575>`_, + `#1581 <https://github.com/fmtlib/fmt/pull/1581>`_, + `#1583 <https://github.com/fmtlib/fmt/issues/1583>`_, + `#1586 <https://github.com/fmtlib/fmt/issues/1586>`_, + `#1587 <https://github.com/fmtlib/fmt/issues/1587>`_, + `#1594 <https://github.com/fmtlib/fmt/issues/1594>`_, + `#1596 <https://github.com/fmtlib/fmt/pull/1596>`_, + `#1604 <https://github.com/fmtlib/fmt/issues/1604>`_, + `#1606 <https://github.com/fmtlib/fmt/pull/1606>`_, + `#1607 <https://github.com/fmtlib/fmt/issues/1607>`_, + `#1609 <https://github.com/fmtlib/fmt/issues/1609>`_). + Thanks `@marti4d (Chris Martin) <https://github.com/marti4d>`_, + `@iPherian <https://github.com/iPherian>`_, + `@parkertomatoes <https://github.com/parkertomatoes>`_, + `@gsjaardema (Greg Sjaardema) <https://github.com/gsjaardema>`_, + `@chronoxor (Ivan Shynkarenka) <https://github.com/chronoxor>`_, + `@DanielaE (Daniela Engert) <https://github.com/DanielaE>`_, + `@torsten48 <https://github.com/torsten48>`_, + `@tohammer (Tobias Hammer) <https://github.com/tohammer>`_, + `@lefticus (Jason Turner) <https://github.com/lefticus>`_, + `@ryusakki (Haise) <https://github.com/ryusakki>`_, + `@adnsv (Alex Denisov) <https://github.com/adnsv>`_, + `@fghzxm <https://github.com/fghzxm>`_, + `@refnum <https://github.com/refnum>`_, + `@pramodk (Pramod Kumbhar) <https://github.com/pramodk>`_, + `@Spirrwell <https://github.com/Spirrwell>`_, + `@scramsby (Scott Ramsby) <https://github.com/scramsby>`_. + +6.1.2 - 2019-12-11 +------------------ + +* Fixed ABI compatibility with ``libfmt.so.6.0.0`` + (`#1471 <https://github.com/fmtlib/fmt/issues/1471>`_). + +* Fixed handling types convertible to ``std::string_view`` + (`#1451 <https://github.com/fmtlib/fmt/pull/1451>`_). + Thanks `@denizevrenci (Deniz Evrenci) <https://github.com/denizevrenci>`_. + +* Made CUDA test an opt-in enabled via the ``FMT_CUDA_TEST`` CMake option. + +* Fixed sign conversion warnings + (`#1440 <https://github.com/fmtlib/fmt/pull/1440>`_). + Thanks `@0x8000-0000 (Florin Iucha) <https://github.com/0x8000-0000>`_. + +6.1.1 - 2019-12-04 +------------------ + +* Fixed shared library build on Windows + (`#1443 <https://github.com/fmtlib/fmt/pull/1443>`_, + `#1445 <https://github.com/fmtlib/fmt/issues/1445>`_, + `#1446 <https://github.com/fmtlib/fmt/pull/1446>`_, + `#1450 <https://github.com/fmtlib/fmt/issues/1450>`_). + Thanks `@egorpugin (Egor Pugin) <https://github.com/egorpugin>`_, + `@bbolli (Beat Bolli) <https://github.com/bbolli>`_. + +* Added a missing decimal point in exponent notation with trailing zeros. + +* Removed deprecated ``format_arg_store::TYPES``. + +6.1.0 - 2019-12-01 +------------------ + +* {fmt} now formats IEEE 754 ``float`` and ``double`` using the shortest decimal + representation with correct rounding by default: + + .. code:: c++ + + #include <cmath> + #include <fmt/core.h> + + int main() { + fmt::print("{}", M_PI); + } + + prints ``3.141592653589793``. + +* Made the fast binary to decimal floating-point formatter the default, + simplified it and improved performance. {fmt} is now 15 times faster than + libc++'s ``std::ostringstream``, 11 times faster than ``printf`` and 10% + faster than double-conversion on `dtoa-benchmark + <https://github.com/fmtlib/dtoa-benchmark>`_: + + ================== ========= ======= + Function Time (ns) Speedup + ================== ========= ======= + ostringstream 1,346.30 1.00x + ostrstream 1,195.74 1.13x + sprintf 995.08 1.35x + doubleconv 99.10 13.59x + fmt 88.34 15.24x + ================== ========= ======= + + .. image:: https://user-images.githubusercontent.com/576385/ + 69767160-cdaca400-112f-11ea-9fc5-347c9f83caad.png + +* {fmt} no longer converts ``float`` arguments to ``double``. In particular this + improves the default (shortest) representation of floats and makes + ``fmt::format`` consistent with ``std::format`` specs + (`#1336 <https://github.com/fmtlib/fmt/issues/1336>`_, + `#1353 <https://github.com/fmtlib/fmt/issues/1353>`_, + `#1360 <https://github.com/fmtlib/fmt/pull/1360>`_, + `#1361 <https://github.com/fmtlib/fmt/pull/1361>`_): + + .. code:: c++ + + fmt::print("{}", 0.1f); + + prints ``0.1`` instead of ``0.10000000149011612``. + + Thanks `@orivej (Orivej Desh) <https://github.com/orivej>`_. + +* Made floating-point formatting output consistent with ``printf``/iostreams + (`#1376 <https://github.com/fmtlib/fmt/issues/1376>`_, + `#1417 <https://github.com/fmtlib/fmt/issues/1417>`_). + +* Added support for 128-bit integers + (`#1287 <https://github.com/fmtlib/fmt/pull/1287>`_): + + .. code:: c++ + + fmt::print("{}", std::numeric_limits<__int128_t>::max()); + + prints ``170141183460469231731687303715884105727``. + + Thanks `@denizevrenci (Deniz Evrenci) <https://github.com/denizevrenci>`_. + +* The overload of ``print`` that takes ``text_style`` is now atomic, i.e. the + output from different threads doesn't interleave + (`#1351 <https://github.com/fmtlib/fmt/pull/1351>`_). + Thanks `@tankiJong (Tanki Zhang) <https://github.com/tankiJong>`_. + +* Made compile time in the header-only mode ~20% faster by reducing the number + of template instantiations. ``wchar_t`` overload of ``vprint`` was moved from + ``fmt/core.h`` to ``fmt/format.h``. + +* Added an overload of ``fmt::join`` that works with tuples + (`#1322 <https://github.com/fmtlib/fmt/issues/1322>`_, + `#1330 <https://github.com/fmtlib/fmt/pull/1330>`_): + + .. code:: c++ + + #include <tuple> + #include <fmt/ranges.h> + + int main() { + std::tuple<char, int, float> t{'a', 1, 2.0f}; + fmt::print("{}", t); + } + + prints ``('a', 1, 2.0)``. + + Thanks `@jeremyong (Jeremy Ong) <https://github.com/jeremyong>`_. + +* Changed formatting of octal zero with prefix from "00" to "0": + + .. code:: c++ + + fmt::print("{:#o}", 0); + + prints ``0``. + +* The locale is now passed to ostream insertion (``<<``) operators + (`#1406 <https://github.com/fmtlib/fmt/pull/1406>`_): + + .. code:: c++ + + #include <fmt/locale.h> + #include <fmt/ostream.h> + + struct S { + double value; + }; + + std::ostream& operator<<(std::ostream& os, S s) { + return os << s.value; + } + + int main() { + auto s = fmt::format(std::locale("fr_FR.UTF-8"), "{}", S{0.42}); + // s == "0,42" + } + + Thanks `@dlaugt (Daniel LaĂŒgt) <https://github.com/dlaugt>`_. + +* Locale-specific number formatting now uses grouping + (`#1393 <https://github.com/fmtlib/fmt/issues/1393>`_ + `#1394 <https://github.com/fmtlib/fmt/pull/1394>`_). + Thanks `@skrdaniel <https://github.com/skrdaniel>`_. + +* Fixed handling of types with deleted implicit rvalue conversion to + ``const char**`` (`#1421 <https://github.com/fmtlib/fmt/issues/1421>`_): + + .. code:: c++ + + struct mystring { + operator const char*() const&; + operator const char*() &; + operator const char*() const&& = delete; + operator const char*() && = delete; + }; + mystring str; + fmt::print("{}", str); // now compiles + +* Enums are now mapped to correct underlying types instead of ``int`` + (`#1286 <https://github.com/fmtlib/fmt/pull/1286>`_). + Thanks `@agmt (Egor Seredin) <https://github.com/agmt>`_. + +* Enum classes are no longer implicitly converted to ``int`` + (`#1424 <https://github.com/fmtlib/fmt/issues/1424>`_). + +* Added ``basic_format_parse_context`` for consistency with C++20 + ``std::format`` and deprecated ``basic_parse_context``. + +* Fixed handling of UTF-8 in precision + (`#1389 <https://github.com/fmtlib/fmt/issues/1389>`_, + `#1390 <https://github.com/fmtlib/fmt/pull/1390>`_). + Thanks `@tajtiattila (Attila Tajti) <https://github.com/tajtiattila>`_. + +* {fmt} can now be installed on Linux, macOS and Windows with + `Conda <https://docs.conda.io/en/latest/>`__ using its + `conda-forge <https://conda-forge.org>`__ + `package <https://github.com/conda-forge/fmt-feedstock>`__ + (`#1410 <https://github.com/fmtlib/fmt/pull/1410>`_):: + + conda install -c conda-forge fmt + + Thanks `@tdegeus (Tom de Geus) <https://github.com/tdegeus>`_. + +* Added a CUDA test (`#1285 <https://github.com/fmtlib/fmt/pull/1285>`_, + `#1317 <https://github.com/fmtlib/fmt/pull/1317>`_). + Thanks `@luncliff (Park DongHa) <https://github.com/luncliff>`_ and + `@risa2000 <https://github.com/risa2000>`_. + +* Improved documentation (`#1276 <https://github.com/fmtlib/fmt/pull/1276>`_, + `#1291 <https://github.com/fmtlib/fmt/issues/1291>`_, + `#1296 <https://github.com/fmtlib/fmt/issues/1296>`_, + `#1315 <https://github.com/fmtlib/fmt/pull/1315>`_, + `#1332 <https://github.com/fmtlib/fmt/pull/1332>`_, + `#1337 <https://github.com/fmtlib/fmt/pull/1337>`_, + `#1395 <https://github.com/fmtlib/fmt/issues/1395>`_ + `#1418 <https://github.com/fmtlib/fmt/pull/1418>`_). + Thanks + `@waywardmonkeys (Bruce Mitchener) <https://github.com/waywardmonkeys>`_, + `@pauldreik (Paul Dreik) <https://github.com/pauldreik>`_, + `@jackoalan (Jack Andersen) <https://github.com/jackoalan>`_. + +* Various code improvements + (`#1358 <https://github.com/fmtlib/fmt/pull/1358>`_, + `#1407 <https://github.com/fmtlib/fmt/pull/1407>`_). + Thanks `@orivej (Orivej Desh) <https://github.com/orivej>`_, + `@dpacbach (David P. Sicilia) <https://github.com/dpacbach>`_, + +* Fixed compile-time format string checks for user-defined types + (`#1292 <https://github.com/fmtlib/fmt/issues/1292>`_). + +* Worked around a false positive in ``unsigned-integer-overflow`` sanitizer + (`#1377 <https://github.com/fmtlib/fmt/issues/1377>`_). + +* Fixed various warnings and compilation issues + (`#1273 <https://github.com/fmtlib/fmt/issues/1273>`_, + `#1278 <https://github.com/fmtlib/fmt/pull/1278>`_, + `#1280 <https://github.com/fmtlib/fmt/pull/1280>`_, + `#1281 <https://github.com/fmtlib/fmt/issues/1281>`_, + `#1288 <https://github.com/fmtlib/fmt/issues/1288>`_, + `#1290 <https://github.com/fmtlib/fmt/pull/1290>`_, + `#1301 <https://github.com/fmtlib/fmt/pull/1301>`_, + `#1305 <https://github.com/fmtlib/fmt/issues/1305>`_, + `#1306 <https://github.com/fmtlib/fmt/issues/1306>`_, + `#1309 <https://github.com/fmtlib/fmt/issues/1309>`_, + `#1312 <https://github.com/fmtlib/fmt/pull/1312>`_, + `#1313 <https://github.com/fmtlib/fmt/issues/1313>`_, + `#1316 <https://github.com/fmtlib/fmt/issues/1316>`_, + `#1319 <https://github.com/fmtlib/fmt/issues/1319>`_, + `#1320 <https://github.com/fmtlib/fmt/pull/1320>`_, + `#1326 <https://github.com/fmtlib/fmt/pull/1326>`_, + `#1328 <https://github.com/fmtlib/fmt/pull/1328>`_, + `#1344 <https://github.com/fmtlib/fmt/issues/1344>`_, + `#1345 <https://github.com/fmtlib/fmt/pull/1345>`_, + `#1347 <https://github.com/fmtlib/fmt/pull/1347>`_, + `#1349 <https://github.com/fmtlib/fmt/pull/1349>`_, + `#1354 <https://github.com/fmtlib/fmt/issues/1354>`_, + `#1362 <https://github.com/fmtlib/fmt/issues/1362>`_, + `#1366 <https://github.com/fmtlib/fmt/issues/1366>`_, + `#1364 <https://github.com/fmtlib/fmt/pull/1364>`_, + `#1370 <https://github.com/fmtlib/fmt/pull/1370>`_, + `#1371 <https://github.com/fmtlib/fmt/pull/1371>`_, + `#1385 <https://github.com/fmtlib/fmt/issues/1385>`_, + `#1388 <https://github.com/fmtlib/fmt/issues/1388>`_, + `#1397 <https://github.com/fmtlib/fmt/pull/1397>`_, + `#1414 <https://github.com/fmtlib/fmt/pull/1414>`_, + `#1416 <https://github.com/fmtlib/fmt/pull/1416>`_, + `#1422 <https://github.com/fmtlib/fmt/issues/1422>`_ + `#1427 <https://github.com/fmtlib/fmt/pull/1427>`_, + `#1431 <https://github.com/fmtlib/fmt/issues/1431>`_, + `#1433 <https://github.com/fmtlib/fmt/pull/1433>`_). + Thanks `@hhb <https://github.com/hhb>`_, + `@gsjaardema (Greg Sjaardema) <https://github.com/gsjaardema>`_, + `@gabime (Gabi Melman) <https://github.com/gabime>`_, + `@neheb (Rosen Penev) <https://github.com/neheb>`_, + `@vedranmiletic (Vedran MiletiÄ) <https://github.com/vedranmiletic>`_, + `@dkavolis (Daumantas Kavolis) <https://github.com/dkavolis>`_, + `@mwinterb <https://github.com/mwinterb>`_, + `@orivej (Orivej Desh) <https://github.com/orivej>`_, + `@denizevrenci (Deniz Evrenci) <https://github.com/denizevrenci>`_ + `@leonklingele <https://github.com/leonklingele>`_, + `@chronoxor (Ivan Shynkarenka) <https://github.com/chronoxor>`_, + `@kent-tri <https://github.com/kent-tri>`_, + `@0x8000-0000 (Florin Iucha) <https://github.com/0x8000-0000>`_, + `@marti4d (Chris Martin) <https://github.com/marti4d>`_. + +6.0.0 - 2019-08-26 +------------------ + +* Switched to the `MIT license + <https://github.com/fmtlib/fmt/blob/5a4b24613ba16cc689977c3b5bd8274a3ba1dd1f/LICENSE.rst>`_ + with an optional exception that allows distributing binary code without + attribution. + +* Floating-point formatting is now locale-independent by default: + + .. code:: c++ + + #include <locale> + #include <fmt/core.h> + + int main() { + std::locale::global(std::locale("ru_RU.UTF-8")); + fmt::print("value = {}", 4.2); + } + + prints "value = 4.2" regardless of the locale. + + For locale-specific formatting use the ``n`` specifier: + + .. code:: c++ + + std::locale::global(std::locale("ru_RU.UTF-8")); + fmt::print("value = {:n}", 4.2); + + prints "value = 4,2". + +* Added an experimental Grisu floating-point formatting algorithm + implementation (disabled by default). To enable it compile with the + ``FMT_USE_GRISU`` macro defined to 1: + + .. code:: c++ + + #define FMT_USE_GRISU 1 + #include <fmt/format.h> + + auto s = fmt::format("{}", 4.2); // formats 4.2 using Grisu + + With Grisu enabled, {fmt} is 13x faster than ``std::ostringstream`` (libc++) + and 10x faster than ``sprintf`` on `dtoa-benchmark + <https://github.com/fmtlib/dtoa-benchmark>`_ (`full results + <https://fmt.dev/unknown_mac64_clang10.0.html>`_): + + .. image:: https://user-images.githubusercontent.com/576385/ + 54883977-9fe8c000-4e28-11e9-8bde-272d122e7c52.jpg + +* Separated formatting and parsing contexts for consistency with + `C++20 std::format <http://eel.is/c++draft/format>`_, removing the + undocumented ``basic_format_context::parse_context()`` function. + +* Added `oss-fuzz <https://github.com/google/oss-fuzz>`_ support + (`#1199 <https://github.com/fmtlib/fmt/pull/1199>`_). + Thanks `@pauldreik (Paul Dreik) <https://github.com/pauldreik>`_. + +* ``formatter`` specializations now always take precedence over ``operator<<`` + (`#952 <https://github.com/fmtlib/fmt/issues/952>`_): + + .. code:: c++ + + #include <iostream> + #include <fmt/ostream.h> + + struct S {}; + + std::ostream& operator<<(std::ostream& os, S) { + return os << 1; + } + + template <> + struct fmt::formatter<S> : fmt::formatter<int> { + auto format(S, format_context& ctx) { + return formatter<int>::format(2, ctx); + } + }; + + int main() { + std::cout << S() << "\n"; // prints 1 using operator<< + fmt::print("{}\n", S()); // prints 2 using formatter + } + +* Introduced the experimental ``fmt::compile`` function that does format string + compilation (`#618 <https://github.com/fmtlib/fmt/issues/618>`_, + `#1169 <https://github.com/fmtlib/fmt/issues/1169>`_, + `#1171 <https://github.com/fmtlib/fmt/pull/1171>`_): + + .. code:: c++ + + #include <fmt/compile.h> + + auto f = fmt::compile<int>("{}"); + std::string s = fmt::format(f, 42); // can be called multiple times to + // format different values + // s == "42" + + It moves the cost of parsing a format string outside of the format function + which can be beneficial when identically formatting many objects of the same + types. Thanks `@stryku (Mateusz Janek) <https://github.com/stryku>`_. + +* Added experimental ``%`` format specifier that formats floating-point values + as percentages (`#1060 <https://github.com/fmtlib/fmt/pull/1060>`_, + `#1069 <https://github.com/fmtlib/fmt/pull/1069>`_, + `#1071 <https://github.com/fmtlib/fmt/pull/1071>`_): + + .. code:: c++ + + auto s = fmt::format("{:.1%}", 0.42); // s == "42.0%" + + Thanks `@gawain-bolton (Gawain Bolton) <https://github.com/gawain-bolton>`_. + +* Implemented precision for floating-point durations + (`#1004 <https://github.com/fmtlib/fmt/issues/1004>`_, + `#1012 <https://github.com/fmtlib/fmt/pull/1012>`_): + + .. code:: c++ + + auto s = fmt::format("{:.1}", std::chrono::duration<double>(1.234)); + // s == 1.2s + + Thanks `@DanielaE (Daniela Engert) <https://github.com/DanielaE>`_. + +* Implemented ``chrono`` format specifiers ``%Q`` and ``%q`` that give the value + and the unit respectively (`#1019 <https://github.com/fmtlib/fmt/pull/1019>`_): + + .. code:: c++ + + auto value = fmt::format("{:%Q}", 42s); // value == "42" + auto unit = fmt::format("{:%q}", 42s); // unit == "s" + + Thanks `@DanielaE (Daniela Engert) <https://github.com/DanielaE>`_. + +* Fixed handling of dynamic width in chrono formatter: + + .. code:: c++ + + auto s = fmt::format("{0:{1}%H:%M:%S}", std::chrono::seconds(12345), 12); + // ^ width argument index ^ width + // s == "03:25:45 " + + Thanks Howard Hinnant. + +* Removed deprecated ``fmt/time.h``. Use ``fmt/chrono.h`` instead. + +* Added ``fmt::format`` and ``fmt::vformat`` overloads that take ``text_style`` + (`#993 <https://github.com/fmtlib/fmt/issues/993>`_, + `#994 <https://github.com/fmtlib/fmt/pull/994>`_): + + .. code:: c++ + + #include <fmt/color.h> + + std::string message = fmt::format(fmt::emphasis::bold | fg(fmt::color::red), + "The answer is {}.", 42); + + Thanks `@Naios (Denis Blank) <https://github.com/Naios>`_. + +* Removed the deprecated color API (``print_colored``). Use the new API, namely + ``print`` overloads that take ``text_style`` instead. + +* Made ``std::unique_ptr`` and ``std::shared_ptr`` formattable as pointers via + ``fmt::ptr`` (`#1121 <https://github.com/fmtlib/fmt/pull/1121>`_): + + .. code:: c++ + + std::unique_ptr<int> p = ...; + fmt::print("{}", fmt::ptr(p)); // prints p as a pointer + + Thanks `@sighingnow (Tao He) <https://github.com/sighingnow>`_. + +* Made ``print`` and ``vprint`` report I/O errors + (`#1098 <https://github.com/fmtlib/fmt/issues/1098>`_, + `#1099 <https://github.com/fmtlib/fmt/pull/1099>`_). + Thanks `@BillyDonahue (Billy Donahue) <https://github.com/BillyDonahue>`_. + +* Marked deprecated APIs with the ``[[deprecated]]`` attribute and removed + internal uses of deprecated APIs + (`#1022 <https://github.com/fmtlib/fmt/pull/1022>`_). + Thanks `@eliaskosunen (Elias Kosunen) <https://github.com/eliaskosunen>`_. + +* Modernized the codebase using more C++11 features and removing workarounds. + Most importantly, ``buffer_context`` is now an alias template, so + use ``buffer_context<T>`` instead of ``buffer_context<T>::type``. + These features require GCC 4.8 or later. + +* ``formatter`` specializations now always take precedence over implicit + conversions to ``int`` and the undocumented ``convert_to_int`` trait + is now deprecated. + +* Moved the undocumented ``basic_writer``, ``writer``, and ``wwriter`` types + to the ``internal`` namespace. + +* Removed deprecated ``basic_format_context::begin()``. Use ``out()`` instead. + +* Disallowed passing the result of ``join`` as an lvalue to prevent misuse. + +* Refactored the undocumented structs that represent parsed format specifiers + to simplify the API and allow multibyte fill. + +* Moved SFINAE to template parameters to reduce symbol sizes. + +* Switched to ``fputws`` for writing wide strings so that it's no longer + required to call ``_setmode`` on Windows + (`#1229 <https://github.com/fmtlib/fmt/issues/1229>`_, + `#1243 <https://github.com/fmtlib/fmt/pull/1243>`_). + Thanks `@jackoalan (Jack Andersen) <https://github.com/jackoalan>`_. + +* Improved literal-based API + (`#1254 <https://github.com/fmtlib/fmt/pull/1254>`_). + Thanks `@sylveon (Charles Milette) <https://github.com/sylveon>`_. + +* Added support for exotic platforms without ``uintptr_t`` such as IBM i + (AS/400) which has 128-bit pointers and only 64-bit integers + (`#1059 <https://github.com/fmtlib/fmt/issues/1059>`_). + +* Added `Sublime Text syntax highlighting config + <https://github.com/fmtlib/fmt/blob/master/support/C%2B%2B.sublime-syntax>`_ + (`#1037 <https://github.com/fmtlib/fmt/issues/1037>`_). + Thanks `@Kronuz (GermĂĄn MĂ©ndez Bravo) <https://github.com/Kronuz>`_. + +* Added the ``FMT_ENFORCE_COMPILE_STRING`` macro to enforce the use of + compile-time format strings + (`#1231 <https://github.com/fmtlib/fmt/pull/1231>`_). + Thanks `@jackoalan (Jack Andersen) <https://github.com/jackoalan>`_. + +* Stopped setting ``CMAKE_BUILD_TYPE`` if {fmt} is a subproject + (`#1081 <https://github.com/fmtlib/fmt/issues/1081>`_). + +* Various build improvements + (`#1039 <https://github.com/fmtlib/fmt/pull/1039>`_, + `#1078 <https://github.com/fmtlib/fmt/pull/1078>`_, + `#1091 <https://github.com/fmtlib/fmt/pull/1091>`_, + `#1103 <https://github.com/fmtlib/fmt/pull/1103>`_, + `#1177 <https://github.com/fmtlib/fmt/pull/1177>`_). + Thanks `@luncliff (Park DongHa) <https://github.com/luncliff>`_, + `@jasonszang (Jason Shuo Zang) <https://github.com/jasonszang>`_, + `@olafhering (Olaf Hering) <https://github.com/olafhering>`_, + `@Lecetem <https://github.com/Lectem>`_, + `@pauldreik (Paul Dreik) <https://github.com/pauldreik>`_. + +* Improved documentation + (`#1049 <https://github.com/fmtlib/fmt/issues/1049>`_, + `#1051 <https://github.com/fmtlib/fmt/pull/1051>`_, + `#1083 <https://github.com/fmtlib/fmt/pull/1083>`_, + `#1113 <https://github.com/fmtlib/fmt/pull/1113>`_, + `#1114 <https://github.com/fmtlib/fmt/pull/1114>`_, + `#1146 <https://github.com/fmtlib/fmt/issues/1146>`_, + `#1180 <https://github.com/fmtlib/fmt/issues/1180>`_, + `#1250 <https://github.com/fmtlib/fmt/pull/1250>`_, + `#1252 <https://github.com/fmtlib/fmt/pull/1252>`_, + `#1265 <https://github.com/fmtlib/fmt/pull/1265>`_). + Thanks `@mikelui (Michael Lui) <https://github.com/mikelui>`_, + `@foonathan (Jonathan MĂŒller) <https://github.com/foonathan>`_, + `@BillyDonahue (Billy Donahue) <https://github.com/BillyDonahue>`_, + `@jwakely (Jonathan Wakely) <https://github.com/jwakely>`_, + `@kaisbe (Kais Ben Salah) <https://github.com/kaisbe>`_, + `@sdebionne (Samuel Debionne) <https://github.com/sdebionne>`_. + +* Fixed ambiguous formatter specialization in ``fmt/ranges.h`` + (`#1123 <https://github.com/fmtlib/fmt/issues/1123>`_). + +* Fixed formatting of a non-empty ``std::filesystem::path`` which is an + infinitely deep range of its components + (`#1268 <https://github.com/fmtlib/fmt/issues/1268>`_). + +* Fixed handling of general output iterators when formatting characters + (`#1056 <https://github.com/fmtlib/fmt/issues/1056>`_, + `#1058 <https://github.com/fmtlib/fmt/pull/1058>`_). + Thanks `@abolz (Alexander Bolz) <https://github.com/abolz>`_. + +* Fixed handling of output iterators in ``formatter`` specialization for + ranges (`#1064 <https://github.com/fmtlib/fmt/issues/1064>`_). + +* Fixed handling of exotic character types + (`#1188 <https://github.com/fmtlib/fmt/issues/1188>`_). + +* Made chrono formatting work with exceptions disabled + (`#1062 <https://github.com/fmtlib/fmt/issues/1062>`_). + +* Fixed DLL visibility issues + (`#1134 <https://github.com/fmtlib/fmt/pull/1134>`_, + `#1147 <https://github.com/fmtlib/fmt/pull/1147>`_). + Thanks `@denchat <https://github.com/denchat>`_. + +* Disabled the use of UDL template extension on GCC 9 + (`#1148 <https://github.com/fmtlib/fmt/issues/1148>`_). + +* Removed misplaced ``format`` compile-time checks from ``printf`` + (`#1173 <https://github.com/fmtlib/fmt/issues/1173>`_). + +* Fixed issues in the experimental floating-point formatter + (`#1072 <https://github.com/fmtlib/fmt/issues/1072>`_, + `#1129 <https://github.com/fmtlib/fmt/issues/1129>`_, + `#1153 <https://github.com/fmtlib/fmt/issues/1153>`_, + `#1155 <https://github.com/fmtlib/fmt/pull/1155>`_, + `#1210 <https://github.com/fmtlib/fmt/issues/1210>`_, + `#1222 <https://github.com/fmtlib/fmt/issues/1222>`_). + Thanks `@alabuzhev (Alex Alabuzhev) <https://github.com/alabuzhev>`_. + +* Fixed bugs discovered by fuzzing or during fuzzing integration + (`#1124 <https://github.com/fmtlib/fmt/issues/1124>`_, + `#1127 <https://github.com/fmtlib/fmt/issues/1127>`_, + `#1132 <https://github.com/fmtlib/fmt/issues/1132>`_, + `#1135 <https://github.com/fmtlib/fmt/pull/1135>`_, + `#1136 <https://github.com/fmtlib/fmt/issues/1136>`_, + `#1141 <https://github.com/fmtlib/fmt/issues/1141>`_, + `#1142 <https://github.com/fmtlib/fmt/issues/1142>`_, + `#1178 <https://github.com/fmtlib/fmt/issues/1178>`_, + `#1179 <https://github.com/fmtlib/fmt/issues/1179>`_, + `#1194 <https://github.com/fmtlib/fmt/issues/1194>`_). + Thanks `@pauldreik (Paul Dreik) <https://github.com/pauldreik>`_. + +* Fixed building tests on FreeBSD and Hurd + (`#1043 <https://github.com/fmtlib/fmt/issues/1043>`_). + Thanks `@jackyf (Eugene V. Lyubimkin) <https://github.com/jackyf>`_. + +* Fixed various warnings and compilation issues + (`#998 <https://github.com/fmtlib/fmt/pull/998>`_, + `#1006 <https://github.com/fmtlib/fmt/pull/1006>`_, + `#1008 <https://github.com/fmtlib/fmt/issues/1008>`_, + `#1011 <https://github.com/fmtlib/fmt/issues/1011>`_, + `#1025 <https://github.com/fmtlib/fmt/issues/1025>`_, + `#1027 <https://github.com/fmtlib/fmt/pull/1027>`_, + `#1028 <https://github.com/fmtlib/fmt/pull/1028>`_, + `#1029 <https://github.com/fmtlib/fmt/pull/1029>`_, + `#1030 <https://github.com/fmtlib/fmt/pull/1030>`_, + `#1031 <https://github.com/fmtlib/fmt/pull/1031>`_, + `#1054 <https://github.com/fmtlib/fmt/pull/1054>`_, + `#1063 <https://github.com/fmtlib/fmt/issues/1063>`_, + `#1068 <https://github.com/fmtlib/fmt/pull/1068>`_, + `#1074 <https://github.com/fmtlib/fmt/pull/1074>`_, + `#1075 <https://github.com/fmtlib/fmt/pull/1075>`_, + `#1079 <https://github.com/fmtlib/fmt/pull/1079>`_, + `#1086 <https://github.com/fmtlib/fmt/pull/1086>`_, + `#1088 <https://github.com/fmtlib/fmt/issues/1088>`_, + `#1089 <https://github.com/fmtlib/fmt/pull/1089>`_, + `#1094 <https://github.com/fmtlib/fmt/pull/1094>`_, + `#1101 <https://github.com/fmtlib/fmt/issues/1101>`_, + `#1102 <https://github.com/fmtlib/fmt/pull/1102>`_, + `#1105 <https://github.com/fmtlib/fmt/issues/1105>`_, + `#1107 <https://github.com/fmtlib/fmt/pull/1107>`_, + `#1115 <https://github.com/fmtlib/fmt/issues/1115>`_, + `#1117 <https://github.com/fmtlib/fmt/issues/1117>`_, + `#1118 <https://github.com/fmtlib/fmt/issues/1118>`_, + `#1120 <https://github.com/fmtlib/fmt/issues/1120>`_, + `#1123 <https://github.com/fmtlib/fmt/issues/1123>`_, + `#1139 <https://github.com/fmtlib/fmt/pull/1139>`_, + `#1140 <https://github.com/fmtlib/fmt/issues/1140>`_, + `#1143 <https://github.com/fmtlib/fmt/issues/1143>`_, + `#1144 <https://github.com/fmtlib/fmt/pull/1144>`_, + `#1150 <https://github.com/fmtlib/fmt/pull/1150>`_, + `#1151 <https://github.com/fmtlib/fmt/pull/1151>`_, + `#1152 <https://github.com/fmtlib/fmt/issues/1152>`_, + `#1154 <https://github.com/fmtlib/fmt/issues/1154>`_, + `#1156 <https://github.com/fmtlib/fmt/issues/1156>`_, + `#1159 <https://github.com/fmtlib/fmt/pull/1159>`_, + `#1175 <https://github.com/fmtlib/fmt/issues/1175>`_, + `#1181 <https://github.com/fmtlib/fmt/issues/1181>`_, + `#1186 <https://github.com/fmtlib/fmt/issues/1186>`_, + `#1187 <https://github.com/fmtlib/fmt/pull/1187>`_, + `#1191 <https://github.com/fmtlib/fmt/pull/1191>`_, + `#1197 <https://github.com/fmtlib/fmt/issues/1197>`_, + `#1200 <https://github.com/fmtlib/fmt/issues/1200>`_, + `#1203 <https://github.com/fmtlib/fmt/issues/1203>`_, + `#1205 <https://github.com/fmtlib/fmt/issues/1205>`_, + `#1206 <https://github.com/fmtlib/fmt/pull/1206>`_, + `#1213 <https://github.com/fmtlib/fmt/issues/1213>`_, + `#1214 <https://github.com/fmtlib/fmt/issues/1214>`_, + `#1217 <https://github.com/fmtlib/fmt/pull/1217>`_, + `#1228 <https://github.com/fmtlib/fmt/issues/1228>`_, + `#1230 <https://github.com/fmtlib/fmt/pull/1230>`_, + `#1232 <https://github.com/fmtlib/fmt/issues/1232>`_, + `#1235 <https://github.com/fmtlib/fmt/pull/1235>`_, + `#1236 <https://github.com/fmtlib/fmt/pull/1236>`_, + `#1240 <https://github.com/fmtlib/fmt/issues/1240>`_). + Thanks `@DanielaE (Daniela Engert) <https://github.com/DanielaE>`_, + `@mwinterb <https://github.com/mwinterb>`_, + `@eliaskosunen (Elias Kosunen) <https://github.com/eliaskosunen>`_, + `@morinmorin <https://github.com/morinmorin>`_, + `@ricco19 (Brian Ricciardelli) <https://github.com/ricco19>`_, + `@waywardmonkeys (Bruce Mitchener) <https://github.com/waywardmonkeys>`_, + `@chronoxor (Ivan Shynkarenka) <https://github.com/chronoxor>`_, + `@remyabel <https://github.com/remyabel>`_, + `@pauldreik (Paul Dreik) <https://github.com/pauldreik>`_, + `@gsjaardema (Greg Sjaardema) <https://github.com/gsjaardema>`_, + `@rcane (Ronny KrĂŒger) <https://github.com/rcane>`_, + `@mocabe <https://github.com/mocabe>`_, + `@denchat <https://github.com/denchat>`_, + `@cjdb (Christopher Di Bella) <https://github.com/cjdb>`_, + `@HazardyKnusperkeks (Björn SchĂ€pers) <https://github.com/HazardyKnusperkeks>`_, + `@vedranmiletic (Vedran MiletiÄ) <https://github.com/vedranmiletic>`_, + `@jackoalan (Jack Andersen) <https://github.com/jackoalan>`_, + `@DaanDeMeyer (Daan De Meyer) <https://github.com/DaanDeMeyer>`_, + `@starkmapper (Mark Stapper) <https://github.com/starkmapper>`_. + +5.3.0 - 2018-12-28 +------------------ + +* Introduced experimental chrono formatting support: + + .. code:: c++ + + #include <fmt/chrono.h> + + int main() { + using namespace std::literals::chrono_literals; + fmt::print("Default format: {} {}\n", 42s, 100ms); + fmt::print("strftime-like format: {:%H:%M:%S}\n", 3h + 15min + 30s); + } + + prints:: + + Default format: 42s 100ms + strftime-like format: 03:15:30 + +* Added experimental support for emphasis (bold, italic, underline, + strikethrough), colored output to a file stream, and improved colored + formatting API + (`#961 <https://github.com/fmtlib/fmt/pull/961>`_, + `#967 <https://github.com/fmtlib/fmt/pull/967>`_, + `#973 <https://github.com/fmtlib/fmt/pull/973>`_): + + .. code:: c++ + + #include <fmt/color.h> + + int main() { + print(fg(fmt::color::crimson) | fmt::emphasis::bold, + "Hello, {}!\n", "world"); + print(fg(fmt::color::floral_white) | bg(fmt::color::slate_gray) | + fmt::emphasis::underline, "Hello, {}!\n", "ĐŒĐžŃ"); + print(fg(fmt::color::steel_blue) | fmt::emphasis::italic, + "Hello, {}!\n", "äžç"); + } + + prints the following on modern terminals with RGB color support: + + .. image:: https://user-images.githubusercontent.com/576385/ + 50405788-b66e7500-076e-11e9-9592-7324d1f951d8.png + + Thanks `@Rakete1111 (Nicolas) <https://github.com/Rakete1111>`_. + +* Added support for 4-bit terminal colors + (`#968 <https://github.com/fmtlib/fmt/issues/968>`_, + `#974 <https://github.com/fmtlib/fmt/pull/974>`_) + + .. code:: c++ + + #include <fmt/color.h> + + int main() { + print(fg(fmt::terminal_color::red), "stop\n"); + } + + Note that these colors vary by terminal: + + .. image:: https://user-images.githubusercontent.com/576385/ + 50405925-dbfc7e00-0770-11e9-9b85-333fab0af9ac.png + + Thanks `@Rakete1111 (Nicolas) <https://github.com/Rakete1111>`_. + +* Parameterized formatting functions on the type of the format string + (`#880 <https://github.com/fmtlib/fmt/issues/880>`_, + `#881 <https://github.com/fmtlib/fmt/pull/881>`_, + `#883 <https://github.com/fmtlib/fmt/pull/883>`_, + `#885 <https://github.com/fmtlib/fmt/pull/885>`_, + `#897 <https://github.com/fmtlib/fmt/pull/897>`_, + `#920 <https://github.com/fmtlib/fmt/issues/920>`_). + Any object of type ``S`` that has an overloaded ``to_string_view(const S&)`` + returning ``fmt::string_view`` can be used as a format string: + + .. code:: c++ + + namespace my_ns { + inline string_view to_string_view(const my_string& s) { + return {s.data(), s.length()}; + } + } + + std::string message = fmt::format(my_string("The answer is {}."), 42); + + Thanks `@DanielaE (Daniela Engert) <https://github.com/DanielaE>`_. + +* Made ``std::string_view`` work as a format string + (`#898 <https://github.com/fmtlib/fmt/pull/898>`_): + + .. code:: c++ + + auto message = fmt::format(std::string_view("The answer is {}."), 42); + + Thanks `@DanielaE (Daniela Engert) <https://github.com/DanielaE>`_. + +* Added wide string support to compile-time format string checks + (`#924 <https://github.com/fmtlib/fmt/pull/924>`_): + + .. code:: c++ + + print(fmt(L"{:f}"), 42); // compile-time error: invalid type specifier + + Thanks `@XZiar <https://github.com/XZiar>`_. + +* Made colored print functions work with wide strings + (`#867 <https://github.com/fmtlib/fmt/pull/867>`_): + + .. code:: c++ + + #include <fmt/color.h> + + int main() { + print(fg(fmt::color::red), L"{}\n", 42); + } + + Thanks `@DanielaE (Daniela Engert) <https://github.com/DanielaE>`_. + +* Introduced experimental Unicode support + (`#628 <https://github.com/fmtlib/fmt/issues/628>`_, + `#891 <https://github.com/fmtlib/fmt/pull/891>`_): + + .. code:: c++ + + using namespace fmt::literals; + auto s = fmt::format("{:*^5}"_u, "đ€Ą"_u); // s == "**đ€Ą**"_u + +* Improved locale support: + + .. code:: c++ + + #include <fmt/locale.h> + + struct numpunct : std::numpunct<char> { + protected: + char do_thousands_sep() const override { return '~'; } + }; + + std::locale loc; + auto s = fmt::format(std::locale(loc, new numpunct()), "{:n}", 1234567); + // s == "1~234~567" + +* Constrained formatting functions on proper iterator types + (`#921 <https://github.com/fmtlib/fmt/pull/921>`_). + Thanks `@DanielaE (Daniela Engert) <https://github.com/DanielaE>`_. + +* Added ``make_printf_args`` and ``make_wprintf_args`` functions + (`#934 <https://github.com/fmtlib/fmt/pull/934>`_). + Thanks `@tnovotny <https://github.com/tnovotny>`_. + +* Deprecated ``fmt::visit``, ``parse_context``, and ``wparse_context``. + Use ``fmt::visit_format_arg``, ``format_parse_context``, and + ``wformat_parse_context`` instead. + +* Removed undocumented ``basic_fixed_buffer`` which has been superseded by the + iterator-based API + (`#873 <https://github.com/fmtlib/fmt/issues/873>`_, + `#902 <https://github.com/fmtlib/fmt/pull/902>`_). + Thanks `@superfunc (hollywood programmer) <https://github.com/superfunc>`_. + +* Disallowed repeated leading zeros in an argument ID: + + .. code:: c++ + + fmt::print("{000}", 42); // error + +* Reintroduced support for gcc 4.4. + +* Fixed compilation on platforms with exotic ``double`` + (`#878 <https://github.com/fmtlib/fmt/issues/878>`_). + +* Improved documentation + (`#164 <https://github.com/fmtlib/fmt/issues/164>`_, + `#877 <https://github.com/fmtlib/fmt/issues/877>`_, + `#901 <https://github.com/fmtlib/fmt/pull/901>`_, + `#906 <https://github.com/fmtlib/fmt/pull/906>`_, + `#979 <https://github.com/fmtlib/fmt/pull/979>`_). + Thanks `@kookjr (Mathew Cucuzella) <https://github.com/kookjr>`_, + `@DarkDimius (Dmitry Petrashko) <https://github.com/DarkDimius>`_, + `@HecticSerenity <https://github.com/HecticSerenity>`_. + +* Added pkgconfig support which makes it easier to consume the library from + meson and other build systems + (`#916 <https://github.com/fmtlib/fmt/pull/916>`_). + Thanks `@colemickens (Cole Mickens) <https://github.com/colemickens>`_. + +* Various build improvements + (`#909 <https://github.com/fmtlib/fmt/pull/909>`_, + `#926 <https://github.com/fmtlib/fmt/pull/926>`_, + `#937 <https://github.com/fmtlib/fmt/pull/937>`_, + `#953 <https://github.com/fmtlib/fmt/pull/953>`_, + `#959 <https://github.com/fmtlib/fmt/pull/959>`_). + Thanks `@tchaikov (Kefu Chai) <https://github.com/tchaikov>`_, + `@luncliff (Park DongHa) <https://github.com/luncliff>`_, + `@AndreasSchoenle (Andreas Schönle) <https://github.com/AndreasSchoenle>`_, + `@hotwatermorning <https://github.com/hotwatermorning>`_, + `@Zefz (JohanJansen) <https://github.com/Zefz>`_. + +* Improved ``string_view`` construction performance + (`#914 <https://github.com/fmtlib/fmt/pull/914>`_). + Thanks `@gabime (Gabi Melman) <https://github.com/gabime>`_. + +* Fixed non-matching char types + (`#895 <https://github.com/fmtlib/fmt/pull/895>`_). + Thanks `@DanielaE (Daniela Engert) <https://github.com/DanielaE>`_. + +* Fixed ``format_to_n`` with ``std::back_insert_iterator`` + (`#913 <https://github.com/fmtlib/fmt/pull/913>`_). + Thanks `@DanielaE (Daniela Engert) <https://github.com/DanielaE>`_. + +* Fixed locale-dependent formatting + (`#905 <https://github.com/fmtlib/fmt/issues/905>`_). + +* Fixed various compiler warnings and errors + (`#882 <https://github.com/fmtlib/fmt/pull/882>`_, + `#886 <https://github.com/fmtlib/fmt/pull/886>`_, + `#933 <https://github.com/fmtlib/fmt/pull/933>`_, + `#941 <https://github.com/fmtlib/fmt/pull/941>`_, + `#931 <https://github.com/fmtlib/fmt/issues/931>`_, + `#943 <https://github.com/fmtlib/fmt/pull/943>`_, + `#954 <https://github.com/fmtlib/fmt/pull/954>`_, + `#956 <https://github.com/fmtlib/fmt/pull/956>`_, + `#962 <https://github.com/fmtlib/fmt/pull/962>`_, + `#965 <https://github.com/fmtlib/fmt/issues/965>`_, + `#977 <https://github.com/fmtlib/fmt/issues/977>`_, + `#983 <https://github.com/fmtlib/fmt/pull/983>`_, + `#989 <https://github.com/fmtlib/fmt/pull/989>`_). + Thanks `@Luthaf (Guillaume Fraux) <https://github.com/Luthaf>`_, + `@stevenhoving (Steven Hoving) <https://github.com/stevenhoving>`_, + `@christinaa (Kristina Brooks) <https://github.com/christinaa>`_, + `@lgritz (Larry Gritz) <https://github.com/lgritz>`_, + `@DanielaE (Daniela Engert) <https://github.com/DanielaE>`_, + `@0x8000-0000 (Sign Bit) <https://github.com/0x8000-0000>`_, + `@liuping1997 <https://github.com/liuping1997>`_. + +5.2.1 - 2018-09-21 +------------------ + +* Fixed ``visit`` lookup issues on gcc 7 & 8 + (`#870 <https://github.com/fmtlib/fmt/pull/870>`_). + Thanks `@medithe <https://github.com/medithe>`_. + +* Fixed linkage errors on older gcc. + +* Prevented ``fmt/range.h`` from specializing ``fmt::basic_string_view`` + (`#865 <https://github.com/fmtlib/fmt/issues/865>`_, + `#868 <https://github.com/fmtlib/fmt/pull/868>`_). + Thanks `@hhggit (dual) <https://github.com/hhggit>`_. + +* Improved error message when formatting unknown types + (`#872 <https://github.com/fmtlib/fmt/pull/872>`_). + Thanks `@foonathan (Jonathan MĂŒller) <https://github.com/foonathan>`_, + +* Disabled templated user-defined literals when compiled under nvcc + (`#875 <https://github.com/fmtlib/fmt/pull/875>`_). + Thanks `@CandyGumdrop (Candy Gumdrop) <https://github.com/CandyGumdrop>`_, + +* Fixed ``format_to`` formatting to ``wmemory_buffer`` + (`#874 <https://github.com/fmtlib/fmt/issues/874>`_). + +5.2.0 - 2018-09-13 +------------------ + +* Optimized format string parsing and argument processing which resulted in up + to 5x speed up on long format strings and significant performance boost on + various benchmarks. For example, version 5.2 is 2.22x faster than 5.1 on + decimal integer formatting with ``format_to`` (macOS, clang-902.0.39.2): + + ================== ======= ======= + Method Time, s Speedup + ================== ======= ======= + fmt::format 5.1 0.58 + fmt::format 5.2 0.35 1.66x + fmt::format_to 5.1 0.51 + fmt::format_to 5.2 0.23 2.22x + sprintf 0.71 + std::to_string 1.01 + std::stringstream 1.73 + ================== ======= ======= + +* Changed the ``fmt`` macro from opt-out to opt-in to prevent name collisions. + To enable it define the ``FMT_STRING_ALIAS`` macro to 1 before including + ``fmt/format.h``: + + .. code:: c++ + + #define FMT_STRING_ALIAS 1 + #include <fmt/format.h> + std::string answer = format(fmt("{}"), 42); + +* Added compile-time format string checks to ``format_to`` overload that takes + ``fmt::memory_buffer`` (`#783 <https://github.com/fmtlib/fmt/issues/783>`_): + + .. code:: c++ + + fmt::memory_buffer buf; + // Compile-time error: invalid type specifier. + fmt::format_to(buf, fmt("{:d}"), "foo"); + +* Moved experimental color support to ``fmt/color.h`` and enabled the + new API by default. The old API can be enabled by defining the + ``FMT_DEPRECATED_COLORS`` macro. + +* Added formatting support for types explicitly convertible to + ``fmt::string_view``: + + .. code:: c++ + + struct foo { + explicit operator fmt::string_view() const { return "foo"; } + }; + auto s = format("{}", foo()); + + In particular, this makes formatting function work with + ``folly::StringPiece``. + +* Implemented preliminary support for ``char*_t`` by replacing the ``format`` + function overloads with a single function template parameterized on the string + type. + +* Added support for dynamic argument lists + (`#814 <https://github.com/fmtlib/fmt/issues/814>`_, + `#819 <https://github.com/fmtlib/fmt/pull/819>`_). + Thanks `@MikePopoloski (Michael Popoloski) + <https://github.com/MikePopoloski>`_. + +* Reduced executable size overhead for embedded targets using newlib nano by + making locale dependency optional + (`#839 <https://github.com/fmtlib/fmt/pull/839>`_). + Thanks `@teajay-fr (Thomas Benard) <https://github.com/teajay-fr>`_. + +* Keep ``noexcept`` specifier when exceptions are disabled + (`#801 <https://github.com/fmtlib/fmt/issues/801>`_, + `#810 <https://github.com/fmtlib/fmt/pull/810>`_). + Thanks `@qis (Alexej Harm) <https://github.com/qis>`_. + +* Fixed formatting of user-defined types providing ``operator<<`` with + ``format_to_n`` + (`#806 <https://github.com/fmtlib/fmt/pull/806>`_). + Thanks `@mkurdej (Marek Kurdej) <https://github.com/mkurdej>`_. + +* Fixed dynamic linkage of new symbols + (`#808 <https://github.com/fmtlib/fmt/issues/808>`_). + +* Fixed global initialization issue + (`#807 <https://github.com/fmtlib/fmt/issues/807>`_): + + .. code:: c++ + + // This works on compilers with constexpr support. + static const std::string answer = fmt::format("{}", 42); + +* Fixed various compiler warnings and errors + (`#804 <https://github.com/fmtlib/fmt/pull/804>`_, + `#809 <https://github.com/fmtlib/fmt/issues/809>`_, + `#811 <https://github.com/fmtlib/fmt/pull/811>`_, + `#822 <https://github.com/fmtlib/fmt/issues/822>`_, + `#827 <https://github.com/fmtlib/fmt/pull/827>`_, + `#830 <https://github.com/fmtlib/fmt/issues/830>`_, + `#838 <https://github.com/fmtlib/fmt/pull/838>`_, + `#843 <https://github.com/fmtlib/fmt/issues/843>`_, + `#844 <https://github.com/fmtlib/fmt/pull/844>`_, + `#851 <https://github.com/fmtlib/fmt/issues/851>`_, + `#852 <https://github.com/fmtlib/fmt/pull/852>`_, + `#854 <https://github.com/fmtlib/fmt/pull/854>`_). + Thanks `@henryiii (Henry Schreiner) <https://github.com/henryiii>`_, + `@medithe <https://github.com/medithe>`_, and + `@eliasdaler (Elias Daler) <https://github.com/eliasdaler>`_. + +5.1.0 - 2018-07-05 +------------------ + +* Added experimental support for RGB color output enabled with + the ``FMT_EXTENDED_COLORS`` macro: + + .. code:: c++ + + #define FMT_EXTENDED_COLORS + #define FMT_HEADER_ONLY // or compile fmt with FMT_EXTENDED_COLORS defined + #include <fmt/format.h> + + fmt::print(fmt::color::steel_blue, "Some beautiful text"); + + The old API (the ``print_colored`` and ``vprint_colored`` functions and the + ``color`` enum) is now deprecated. + (`#762 <https://github.com/fmtlib/fmt/issues/762>`_ + `#767 <https://github.com/fmtlib/fmt/pull/767>`_). + thanks `@Remotion (Remo) <https://github.com/Remotion>`_. + +* Added quotes to strings in ranges and tuples + (`#766 <https://github.com/fmtlib/fmt/pull/766>`_). + Thanks `@Remotion (Remo) <https://github.com/Remotion>`_. + +* Made ``format_to`` work with ``basic_memory_buffer`` + (`#776 <https://github.com/fmtlib/fmt/issues/776>`_). + +* Added ``vformat_to_n`` and ``wchar_t`` overload of ``format_to_n`` + (`#764 <https://github.com/fmtlib/fmt/issues/764>`_, + `#769 <https://github.com/fmtlib/fmt/issues/769>`_). + +* Made ``is_range`` and ``is_tuple_like`` part of public (experimental) API + to allow specialization for user-defined types + (`#751 <https://github.com/fmtlib/fmt/issues/751>`_, + `#759 <https://github.com/fmtlib/fmt/pull/759>`_). + Thanks `@drrlvn (Dror Levin) <https://github.com/drrlvn>`_. + +* Added more compilers to continuous integration and increased ``FMT_PEDANTIC`` + warning levels + (`#736 <https://github.com/fmtlib/fmt/pull/736>`_). + Thanks `@eliaskosunen (Elias Kosunen) <https://github.com/eliaskosunen>`_. + +* Fixed compilation with MSVC 2013. + +* Fixed handling of user-defined types in ``format_to`` + (`#793 <https://github.com/fmtlib/fmt/issues/793>`_). + +* Forced linking of inline ``vformat`` functions into the library + (`#795 <https://github.com/fmtlib/fmt/issues/795>`_). + +* Fixed incorrect call to on_align in ``'{:}='`` + (`#750 <https://github.com/fmtlib/fmt/issues/750>`_). + +* Fixed floating-point formatting to a non-back_insert_iterator with sign & + numeric alignment specified + (`#756 <https://github.com/fmtlib/fmt/issues/756>`_). + +* Fixed formatting to an array with ``format_to_n`` + (`#778 <https://github.com/fmtlib/fmt/issues/778>`_). + +* Fixed formatting of more than 15 named arguments + (`#754 <https://github.com/fmtlib/fmt/issues/754>`_). + +* Fixed handling of compile-time strings when including ``fmt/ostream.h``. + (`#768 <https://github.com/fmtlib/fmt/issues/768>`_). + +* Fixed various compiler warnings and errors + (`#742 <https://github.com/fmtlib/fmt/issues/742>`_, + `#748 <https://github.com/fmtlib/fmt/issues/748>`_, + `#752 <https://github.com/fmtlib/fmt/issues/752>`_, + `#770 <https://github.com/fmtlib/fmt/issues/770>`_, + `#775 <https://github.com/fmtlib/fmt/pull/775>`_, + `#779 <https://github.com/fmtlib/fmt/issues/779>`_, + `#780 <https://github.com/fmtlib/fmt/pull/780>`_, + `#790 <https://github.com/fmtlib/fmt/pull/790>`_, + `#792 <https://github.com/fmtlib/fmt/pull/792>`_, + `#800 <https://github.com/fmtlib/fmt/pull/800>`_). + Thanks `@Remotion (Remo) <https://github.com/Remotion>`_, + `@gabime (Gabi Melman) <https://github.com/gabime>`_, + `@foonathan (Jonathan MĂŒller) <https://github.com/foonathan>`_, + `@Dark-Passenger (Dhruv Paranjape) <https://github.com/Dark-Passenger>`_, and + `@0x8000-0000 (Sign Bit) <https://github.com/0x8000-0000>`_. + +5.0.0 - 2018-05-21 +------------------ + +* Added a requirement for partial C++11 support, most importantly variadic + templates and type traits, and dropped ``FMT_VARIADIC_*`` emulation macros. + Variadic templates are available since GCC 4.4, Clang 2.9 and MSVC 18.0 (2013). + For older compilers use {fmt} `version 4.x + <https://github.com/fmtlib/fmt/releases/tag/4.1.0>`_ which continues to be + maintained and works with C++98 compilers. + +* Renamed symbols to follow standard C++ naming conventions and proposed a subset + of the library for standardization in `P0645R2 Text Formatting + <https://wg21.link/P0645>`_. + +* Implemented ``constexpr`` parsing of format strings and `compile-time format + string checks + <https://fmt.dev/latest/api.html#compile-time-format-string-checks>`_. For + example + + .. code:: c++ + + #include <fmt/format.h> + + std::string s = format(fmt("{:d}"), "foo"); + + gives a compile-time error because ``d`` is an invalid specifier for strings + (`godbolt <https://godbolt.org/g/rnCy9Q>`__):: + + ... + <source>:4:19: note: in instantiation of function template specialization 'fmt::v5::format<S, char [4]>' requested here + std::string s = format(fmt("{:d}"), "foo"); + ^ + format.h:1337:13: note: non-constexpr function 'on_error' cannot be used in a constant expression + handler.on_error("invalid type specifier"); + + Compile-time checks require relaxed ``constexpr`` (C++14 feature) support. If + the latter is not available, checks will be performed at runtime. + +* Separated format string parsing and formatting in the extension API to enable + compile-time format string processing. For example + + .. code:: c++ + + struct Answer {}; + + namespace fmt { + template <> + struct formatter<Answer> { + constexpr auto parse(parse_context& ctx) { + auto it = ctx.begin(); + spec = *it; + if (spec != 'd' && spec != 's') + throw format_error("invalid specifier"); + return ++it; + } + + template <typename FormatContext> + auto format(Answer, FormatContext& ctx) { + return spec == 's' ? + format_to(ctx.begin(), "{}", "fourty-two") : + format_to(ctx.begin(), "{}", 42); + } + + char spec = 0; + }; + } + + std::string s = format(fmt("{:x}"), Answer()); + + gives a compile-time error due to invalid format specifier (`godbolt + <https://godbolt.org/g/2jQ1Dv>`__):: + + ... + <source>:12:45: error: expression '<throw-expression>' is not a constant expression + throw format_error("invalid specifier"); + +* Added `iterator support + <https://fmt.dev/latest/api.html#output-iterator-support>`_: + + .. code:: c++ + + #include <vector> + #include <fmt/format.h> + + std::vector<char> out; + fmt::format_to(std::back_inserter(out), "{}", 42); + +* Added the `format_to_n + <https://fmt.dev/latest/api.html#_CPPv2N3fmt11format_to_nE8OutputItNSt6size_tE11string_viewDpRK4Args>`_ + function that restricts the output to the specified number of characters + (`#298 <https://github.com/fmtlib/fmt/issues/298>`_): + + .. code:: c++ + + char out[4]; + fmt::format_to_n(out, sizeof(out), "{}", 12345); + // out == "1234" (without terminating '\0') + +* Added the `formatted_size + <https://fmt.dev/latest/api.html#_CPPv2N3fmt14formatted_sizeE11string_viewDpRK4Args>`_ + function for computing the output size: + + .. code:: c++ + + #include <fmt/format.h> + + auto size = fmt::formatted_size("{}", 12345); // size == 5 + +* Improved compile times by reducing dependencies on standard headers and + providing a lightweight `core API <https://fmt.dev/latest/api.html#core-api>`_: + + .. code:: c++ + + #include <fmt/core.h> + + fmt::print("The answer is {}.", 42); + + See `Compile time and code bloat + <https://github.com/fmtlib/fmt#compile-time-and-code-bloat>`_. + +* Added the `make_format_args + <https://fmt.dev/latest/api.html#_CPPv2N3fmt16make_format_argsEDpRK4Args>`_ + function for capturing formatting arguments: + + .. code:: c++ + + // Prints formatted error message. + void vreport_error(const char *format, fmt::format_args args) { + fmt::print("Error: "); + fmt::vprint(format, args); + } + template <typename... Args> + void report_error(const char *format, const Args & ... args) { + vreport_error(format, fmt::make_format_args(args...)); + } + +* Added the ``make_printf_args`` function for capturing ``printf`` arguments + (`#687 <https://github.com/fmtlib/fmt/issues/687>`_, + `#694 <https://github.com/fmtlib/fmt/pull/694>`_). + Thanks `@Kronuz (GermĂĄn MĂ©ndez Bravo) <https://github.com/Kronuz>`_. + +* Added prefix ``v`` to non-variadic functions taking ``format_args`` to + distinguish them from variadic ones: + + .. code:: c++ + + std::string vformat(string_view format_str, format_args args); + + template <typename... Args> + std::string format(string_view format_str, const Args & ... args); + +* Added experimental support for formatting ranges, containers and tuple-like + types in ``fmt/ranges.h`` (`#735 <https://github.com/fmtlib/fmt/pull/735>`_): + + .. code:: c++ + + #include <fmt/ranges.h> + + std::vector<int> v = {1, 2, 3}; + fmt::print("{}", v); // prints {1, 2, 3} + + Thanks `@Remotion (Remo) <https://github.com/Remotion>`_. + +* Implemented ``wchar_t`` date and time formatting + (`#712 <https://github.com/fmtlib/fmt/pull/712>`_): + + .. code:: c++ + + #include <fmt/time.h> + + std::time_t t = std::time(nullptr); + auto s = fmt::format(L"The date is {:%Y-%m-%d}.", *std::localtime(&t)); + + Thanks `@DanielaE (Daniela Engert) <https://github.com/DanielaE>`_. + +* Provided more wide string overloads + (`#724 <https://github.com/fmtlib/fmt/pull/724>`_). + Thanks `@DanielaE (Daniela Engert) <https://github.com/DanielaE>`_. + +* Switched from a custom null-terminated string view class to ``string_view`` + in the format API and provided ``fmt::string_view`` which implements a subset + of ``std::string_view`` API for pre-C++17 systems. + +* Added support for ``std::experimental::string_view`` + (`#607 <https://github.com/fmtlib/fmt/pull/607>`_): + + .. code:: c++ + + #include <fmt/core.h> + #include <experimental/string_view> + + fmt::print("{}", std::experimental::string_view("foo")); + + Thanks `@virgiliofornazin (Virgilio Alexandre Fornazin) + <https://github.com/virgiliofornazin>`__. + +* Allowed mixing named and automatic arguments: + + .. code:: c++ + + fmt::format("{} {two}", 1, fmt::arg("two", 2)); + +* Removed the write API in favor of the `format API + <https://fmt.dev/latest/api.html#format-api>`_ with compile-time handling of + format strings. + +* Disallowed formatting of multibyte strings into a wide character target + (`#606 <https://github.com/fmtlib/fmt/pull/606>`_). + +* Improved documentation + (`#515 <https://github.com/fmtlib/fmt/pull/515>`_, + `#614 <https://github.com/fmtlib/fmt/issues/614>`_, + `#617 <https://github.com/fmtlib/fmt/pull/617>`_, + `#661 <https://github.com/fmtlib/fmt/pull/661>`_, + `#680 <https://github.com/fmtlib/fmt/pull/680>`_). + Thanks `@ibell (Ian Bell) <https://github.com/ibell>`_, + `@mihaitodor (Mihai Todor) <https://github.com/mihaitodor>`_, and + `@johnthagen <https://github.com/johnthagen>`_. + +* Implemented more efficient handling of large number of format arguments. + +* Introduced an inline namespace for symbol versioning. + +* Added debug postfix ``d`` to the ``fmt`` library name + (`#636 <https://github.com/fmtlib/fmt/issues/636>`_). + +* Removed unnecessary ``fmt/`` prefix in includes + (`#397 <https://github.com/fmtlib/fmt/pull/397>`_). + Thanks `@chronoxor (Ivan Shynkarenka) <https://github.com/chronoxor>`_. + +* Moved ``fmt/*.h`` to ``include/fmt/*.h`` to prevent irrelevant files and + directories appearing on the include search paths when fmt is used as a + subproject and moved source files to the ``src`` directory. + +* Added qmake project file ``support/fmt.pro`` + (`#641 <https://github.com/fmtlib/fmt/pull/641>`_). + Thanks `@cowo78 (Giuseppe Corbelli) <https://github.com/cowo78>`_. + +* Added Gradle build file ``support/build.gradle`` + (`#649 <https://github.com/fmtlib/fmt/pull/649>`_). + Thanks `@luncliff (Park DongHa) <https://github.com/luncliff>`_. + +* Removed ``FMT_CPPFORMAT`` CMake option. + +* Fixed a name conflict with the macro ``CHAR_WIDTH`` in glibc + (`#616 <https://github.com/fmtlib/fmt/pull/616>`_). + Thanks `@aroig (AbdĂł Roig-Maranges) <https://github.com/aroig>`_. + +* Fixed handling of nested braces in ``fmt::join`` + (`#638 <https://github.com/fmtlib/fmt/issues/638>`_). + +* Added ``SOURCELINK_SUFFIX`` for compatibility with Sphinx 1.5 + (`#497 <https://github.com/fmtlib/fmt/pull/497>`_). + Thanks `@ginggs (Graham Inggs) <https://github.com/ginggs>`_. + +* Added a missing ``inline`` in the header-only mode + (`#626 <https://github.com/fmtlib/fmt/pull/626>`_). + Thanks `@aroig (AbdĂł Roig-Maranges) <https://github.com/aroig>`_. + +* Fixed various compiler warnings + (`#640 <https://github.com/fmtlib/fmt/pull/640>`_, + `#656 <https://github.com/fmtlib/fmt/pull/656>`_, + `#679 <https://github.com/fmtlib/fmt/pull/679>`_, + `#681 <https://github.com/fmtlib/fmt/pull/681>`_, + `#705 <https://github.com/fmtlib/fmt/pull/705>`__, + `#715 <https://github.com/fmtlib/fmt/issues/715>`_, + `#717 <https://github.com/fmtlib/fmt/pull/717>`_, + `#720 <https://github.com/fmtlib/fmt/pull/720>`_, + `#723 <https://github.com/fmtlib/fmt/pull/723>`_, + `#726 <https://github.com/fmtlib/fmt/pull/726>`_, + `#730 <https://github.com/fmtlib/fmt/pull/730>`_, + `#739 <https://github.com/fmtlib/fmt/pull/739>`_). + Thanks `@peterbell10 <https://github.com/peterbell10>`_, + `@LarsGullik <https://github.com/LarsGullik>`_, + `@foonathan (Jonathan MĂŒller) <https://github.com/foonathan>`_, + `@eliaskosunen (Elias Kosunen) <https://github.com/eliaskosunen>`_, + `@christianparpart (Christian Parpart) <https://github.com/christianparpart>`_, + `@DanielaE (Daniela Engert) <https://github.com/DanielaE>`_, + and `@mwinterb <https://github.com/mwinterb>`_. + +* Worked around an MSVC bug and fixed several warnings + (`#653 <https://github.com/fmtlib/fmt/pull/653>`_). + Thanks `@alabuzhev (Alex Alabuzhev) <https://github.com/alabuzhev>`_. + +* Worked around GCC bug 67371 + (`#682 <https://github.com/fmtlib/fmt/issues/682>`_). + +* Fixed compilation with ``-fno-exceptions`` + (`#655 <https://github.com/fmtlib/fmt/pull/655>`_). + Thanks `@chenxiaolong (Andrew Gunnerson) <https://github.com/chenxiaolong>`_. + +* Made ``constexpr remove_prefix`` gcc version check tighter + (`#648 <https://github.com/fmtlib/fmt/issues/648>`_). + +* Renamed internal type enum constants to prevent collision with poorly written + C libraries (`#644 <https://github.com/fmtlib/fmt/issues/644>`_). + +* Added detection of ``wostream operator<<`` + (`#650 <https://github.com/fmtlib/fmt/issues/650>`_). + +* Fixed compilation on OpenBSD + (`#660 <https://github.com/fmtlib/fmt/pull/660>`_). + Thanks `@hubslave <https://github.com/hubslave>`_. + +* Fixed compilation on FreeBSD 12 + (`#732 <https://github.com/fmtlib/fmt/pull/732>`_). + Thanks `@dankm <https://github.com/dankm>`_. + +* Fixed compilation when there is a mismatch between ``-std`` options between + the library and user code + (`#664 <https://github.com/fmtlib/fmt/issues/664>`_). + +* Fixed compilation with GCC 7 and ``-std=c++11`` + (`#734 <https://github.com/fmtlib/fmt/issues/734>`_). + +* Improved generated binary code on GCC 7 and older + (`#668 <https://github.com/fmtlib/fmt/issues/668>`_). + +* Fixed handling of numeric alignment with no width + (`#675 <https://github.com/fmtlib/fmt/issues/675>`_). + +* Fixed handling of empty strings in UTF8/16 converters + (`#676 <https://github.com/fmtlib/fmt/pull/676>`_). + Thanks `@vgalka-sl (Vasili Galka) <https://github.com/vgalka-sl>`_. + +* Fixed formatting of an empty ``string_view`` + (`#689 <https://github.com/fmtlib/fmt/issues/689>`_). + +* Fixed detection of ``string_view`` on libc++ + (`#686 <https://github.com/fmtlib/fmt/issues/686>`_). + +* Fixed DLL issues (`#696 <https://github.com/fmtlib/fmt/pull/696>`_). + Thanks `@sebkoenig <https://github.com/sebkoenig>`_. + +* Fixed compile checks for mixing narrow and wide strings + (`#690 <https://github.com/fmtlib/fmt/issues/690>`_). + +* Disabled unsafe implicit conversion to ``std::string`` + (`#729 <https://github.com/fmtlib/fmt/issues/729>`_). + +* Fixed handling of reused format specs (as in ``fmt::join``) for pointers + (`#725 <https://github.com/fmtlib/fmt/pull/725>`_). + Thanks `@mwinterb <https://github.com/mwinterb>`_. + +* Fixed installation of ``fmt/ranges.h`` + (`#738 <https://github.com/fmtlib/fmt/pull/738>`_). + Thanks `@sv1990 <https://github.com/sv1990>`_. + +4.1.0 - 2017-12-20 +------------------ + +* Added ``fmt::to_wstring()`` in addition to ``fmt::to_string()`` + (`#559 <https://github.com/fmtlib/fmt/pull/559>`_). + Thanks `@alabuzhev (Alex Alabuzhev) <https://github.com/alabuzhev>`_. + +* Added support for C++17 ``std::string_view`` + (`#571 <https://github.com/fmtlib/fmt/pull/571>`_ and + `#578 <https://github.com/fmtlib/fmt/pull/578>`_). + Thanks `@thelostt (MĂĄrio Feroldi) <https://github.com/thelostt>`_ and + `@mwinterb <https://github.com/mwinterb>`_. + +* Enabled stream exceptions to catch errors + (`#581 <https://github.com/fmtlib/fmt/issues/581>`_). + Thanks `@crusader-mike <https://github.com/crusader-mike>`_. + +* Allowed formatting of class hierarchies with ``fmt::format_arg()`` + (`#547 <https://github.com/fmtlib/fmt/pull/547>`_). + Thanks `@rollbear (Björn Fahller) <https://github.com/rollbear>`_. + +* Removed limitations on character types + (`#563 <https://github.com/fmtlib/fmt/pull/563>`_). + Thanks `@Yelnats321 (Elnar Dakeshov) <https://github.com/Yelnats321>`_. + +* Conditionally enabled use of ``std::allocator_traits`` + (`#583 <https://github.com/fmtlib/fmt/pull/583>`_). + Thanks `@mwinterb <https://github.com/mwinterb>`_. + +* Added support for ``const`` variadic member function emulation with + ``FMT_VARIADIC_CONST`` (`#591 <https://github.com/fmtlib/fmt/pull/591>`_). + Thanks `@ludekvodicka (Ludek Vodicka) <https://github.com/ludekvodicka>`_. + +* Various bugfixes: bad overflow check, unsupported implicit type conversion + when determining formatting function, test segfaults + (`#551 <https://github.com/fmtlib/fmt/issues/551>`_), ill-formed macros + (`#542 <https://github.com/fmtlib/fmt/pull/542>`_) and ambiguous overloads + (`#580 <https://github.com/fmtlib/fmt/issues/580>`_). + Thanks `@xylosper (Byoung-young Lee) <https://github.com/xylosper>`_. + +* Prevented warnings on MSVC (`#605 <https://github.com/fmtlib/fmt/pull/605>`_, + `#602 <https://github.com/fmtlib/fmt/pull/602>`_, and + `#545 <https://github.com/fmtlib/fmt/pull/545>`_), + clang (`#582 <https://github.com/fmtlib/fmt/pull/582>`_), + GCC (`#573 <https://github.com/fmtlib/fmt/issues/573>`_), + various conversion warnings (`#609 <https://github.com/fmtlib/fmt/pull/609>`_, + `#567 <https://github.com/fmtlib/fmt/pull/567>`_, + `#553 <https://github.com/fmtlib/fmt/pull/553>`_ and + `#553 <https://github.com/fmtlib/fmt/pull/553>`_), and added ``override`` and + ``[[noreturn]]`` (`#549 <https://github.com/fmtlib/fmt/pull/549>`_ and + `#555 <https://github.com/fmtlib/fmt/issues/555>`_). + Thanks `@alabuzhev (Alex Alabuzhev) <https://github.com/alabuzhev>`_, + `@virgiliofornazin (Virgilio Alexandre Fornazin) + <https://gihtub.com/virgiliofornazin>`_, + `@alexanderbock (Alexander Bock) <https://github.com/alexanderbock>`_, + `@yumetodo <https://github.com/yumetodo>`_, + `@VaderY (CsĂĄszĂĄr MĂĄtyĂĄs) <https://github.com/VaderY>`_, + `@jpcima (JP Cimalando) <https://github.com/jpcima>`_, + `@thelostt (MĂĄrio Feroldi) <https://github.com/thelostt>`_, and + `@Manu343726 (Manu SĂĄnchez) <https://github.com/Manu343726>`_. + +* Improved CMake: Used ``GNUInstallDirs`` to set installation location + (`#610 <https://github.com/fmtlib/fmt/pull/610>`_) and fixed warnings + (`#536 <https://github.com/fmtlib/fmt/pull/536>`_ and + `#556 <https://github.com/fmtlib/fmt/pull/556>`_). + Thanks `@mikecrowe (Mike Crowe) <https://github.com/mikecrowe>`_, + `@evgen231 <https://github.com/evgen231>`_ and + `@henryiii (Henry Schreiner) <https://github.com/henryiii>`_. + +4.0.0 - 2017-06-27 +------------------ + +* Removed old compatibility headers ``cppformat/*.h`` and CMake options + (`#527 <https://github.com/fmtlib/fmt/pull/527>`_). + Thanks `@maddinat0r (Alex Martin) <https://github.com/maddinat0r>`_. + +* Added ``string.h`` containing ``fmt::to_string()`` as alternative to + ``std::to_string()`` as well as other string writer functionality + (`#326 <https://github.com/fmtlib/fmt/issues/326>`_ and + `#441 <https://github.com/fmtlib/fmt/pull/441>`_): + + .. code:: c++ + + #include "fmt/string.h" + + std::string answer = fmt::to_string(42); + + Thanks to `@glebov-andrey (Andrey Glebov) + <https://github.com/glebov-andrey>`_. + +* Moved ``fmt::printf()`` to new ``printf.h`` header and allowed ``%s`` as + generic specifier (`#453 <https://github.com/fmtlib/fmt/pull/453>`_), + made ``%.f`` more conformant to regular ``printf()`` + (`#490 <https://github.com/fmtlib/fmt/pull/490>`_), added custom writer + support (`#476 <https://github.com/fmtlib/fmt/issues/476>`_) and implemented + missing custom argument formatting + (`#339 <https://github.com/fmtlib/fmt/pull/339>`_ and + `#340 <https://github.com/fmtlib/fmt/pull/340>`_): + + .. code:: c++ + + #include "fmt/printf.h" + + // %s format specifier can be used with any argument type. + fmt::printf("%s", 42); + + Thanks `@mojoBrendan <https://github.com/mojoBrendan>`_, + `@manylegged (Arthur Danskin) <https://github.com/manylegged>`_ and + `@spacemoose (Glen Stark) <https://github.com/spacemoose>`_. + See also `#360 <https://github.com/fmtlib/fmt/issues/360>`_, + `#335 <https://github.com/fmtlib/fmt/issues/335>`_ and + `#331 <https://github.com/fmtlib/fmt/issues/331>`_. + +* Added ``container.h`` containing a ``BasicContainerWriter`` + to write to containers like ``std::vector`` + (`#450 <https://github.com/fmtlib/fmt/pull/450>`_). + Thanks `@polyvertex (Jean-Charles Lefebvre) <https://github.com/polyvertex>`_. + +* Added ``fmt::join()`` function that takes a range and formats + its elements separated by a given string + (`#466 <https://github.com/fmtlib/fmt/pull/466>`_): + + .. code:: c++ + + #include "fmt/format.h" + + std::vector<double> v = {1.2, 3.4, 5.6}; + // Prints "(+01.20, +03.40, +05.60)". + fmt::print("({:+06.2f})", fmt::join(v.begin(), v.end(), ", ")); + + Thanks `@olivier80 <https://github.com/olivier80>`_. + +* Added support for custom formatting specifications to simplify customization + of built-in formatting (`#444 <https://github.com/fmtlib/fmt/pull/444>`_). + Thanks `@polyvertex (Jean-Charles Lefebvre) <https://github.com/polyvertex>`_. + See also `#439 <https://github.com/fmtlib/fmt/issues/439>`_. + +* Added ``fmt::format_system_error()`` for error code formatting + (`#323 <https://github.com/fmtlib/fmt/issues/323>`_ and + `#526 <https://github.com/fmtlib/fmt/pull/526>`_). + Thanks `@maddinat0r (Alex Martin) <https://github.com/maddinat0r>`_. + +* Added thread-safe ``fmt::localtime()`` and ``fmt::gmtime()`` + as replacement for the standard version to ``time.h`` + (`#396 <https://github.com/fmtlib/fmt/pull/396>`_). + Thanks `@codicodi <https://github.com/codicodi>`_. + +* Internal improvements to ``NamedArg`` and ``ArgLists`` + (`#389 <https://github.com/fmtlib/fmt/pull/389>`_ and + `#390 <https://github.com/fmtlib/fmt/pull/390>`_). + Thanks `@chronoxor <https://github.com/chronoxor>`_. + +* Fixed crash due to bug in ``FormatBuf`` + (`#493 <https://github.com/fmtlib/fmt/pull/493>`_). + Thanks `@effzeh <https://github.com/effzeh>`_. See also + `#480 <https://github.com/fmtlib/fmt/issues/480>`_ and + `#491 <https://github.com/fmtlib/fmt/issues/491>`_. + +* Fixed handling of wide strings in ``fmt::StringWriter``. + +* Improved compiler error messages + (`#357 <https://github.com/fmtlib/fmt/issues/357>`_). + +* Fixed various warnings and issues with various compilers + (`#494 <https://github.com/fmtlib/fmt/pull/494>`_, + `#499 <https://github.com/fmtlib/fmt/pull/499>`_, + `#483 <https://github.com/fmtlib/fmt/pull/483>`_, + `#485 <https://github.com/fmtlib/fmt/pull/485>`_, + `#482 <https://github.com/fmtlib/fmt/pull/482>`_, + `#475 <https://github.com/fmtlib/fmt/pull/475>`_, + `#473 <https://github.com/fmtlib/fmt/pull/473>`_ and + `#414 <https://github.com/fmtlib/fmt/pull/414>`_). + Thanks `@chronoxor <https://github.com/chronoxor>`_, + `@zhaohuaxishi <https://github.com/zhaohuaxishi>`_, + `@pkestene (Pierre Kestener) <https://github.com/pkestene>`_, + `@dschmidt (Dominik Schmidt) <https://github.com/dschmidt>`_ and + `@0x414c (Alexey Gorishny) <https://github.com/0x414c>`_ . + +* Improved CMake: targets are now namespaced + (`#511 <https://github.com/fmtlib/fmt/pull/511>`_ and + `#513 <https://github.com/fmtlib/fmt/pull/513>`_), supported header-only + ``printf.h`` (`#354 <https://github.com/fmtlib/fmt/pull/354>`_), fixed issue + with minimal supported library subset + (`#418 <https://github.com/fmtlib/fmt/issues/418>`_, + `#419 <https://github.com/fmtlib/fmt/pull/419>`_ and + `#420 <https://github.com/fmtlib/fmt/pull/420>`_). + Thanks `@bjoernthiel (Bjoern Thiel) <https://github.com/bjoernthiel>`_, + `@niosHD (Mario Werner) <https://github.com/niosHD>`_, + `@LogicalKnight (Sean LK) <https://github.com/LogicalKnight>`_ and + `@alabuzhev (Alex Alabuzhev) <https://github.com/alabuzhev>`_. + +* Improved documentation. Thanks to + `@pwm1234 (Phil) <https://github.com/pwm1234>`_ for + `#393 <https://github.com/fmtlib/fmt/pull/393>`_. + +3.0.2 - 2017-06-14 +------------------ + +* Added ``FMT_VERSION`` macro + (`#411 <https://github.com/fmtlib/fmt/issues/411>`_). + +* Used ``FMT_NULL`` instead of literal ``0`` + (`#409 <https://github.com/fmtlib/fmt/pull/409>`_). + Thanks `@alabuzhev (Alex Alabuzhev) <https://github.com/alabuzhev>`_. + +* Added extern templates for ``format_float`` + (`#413 <https://github.com/fmtlib/fmt/issues/413>`_). + +* Fixed implicit conversion issue + (`#507 <https://github.com/fmtlib/fmt/issues/507>`_). + +* Fixed signbit detection (`#423 <https://github.com/fmtlib/fmt/issues/423>`_). + +* Fixed naming collision (`#425 <https://github.com/fmtlib/fmt/issues/425>`_). + +* Fixed missing intrinsic for C++/CLI + (`#457 <https://github.com/fmtlib/fmt/pull/457>`_). + Thanks `@calumr (Calum Robinson) <https://github.com/calumr>`_ + +* Fixed Android detection (`#458 <https://github.com/fmtlib/fmt/pull/458>`_). + Thanks `@Gachapen (Magnus Bjerke Vik) <https://github.com/Gachapen>`_. + +* Use lean ``windows.h`` if not in header-only mode + (`#503 <https://github.com/fmtlib/fmt/pull/503>`_). + Thanks `@Quentin01 (Quentin Buathier) <https://github.com/Quentin01>`_. + +* Fixed issue with CMake exporting C++11 flag + (`#445 <https://github.com/fmtlib/fmt/pull/455>`_). + Thanks `@EricWF (Eric) <https://github.com/EricWF>`_. + +* Fixed issue with nvcc and MSVC compiler bug and MinGW + (`#505 <https://github.com/fmtlib/fmt/issues/505>`_). + +* Fixed DLL issues (`#469 <https://github.com/fmtlib/fmt/pull/469>`_ and + `#502 <https://github.com/fmtlib/fmt/pull/502>`_). + Thanks `@richardeakin (Richard Eakin) <https://github.com/richardeakin>`_ and + `@AndreasSchoenle (Andreas Schönle) <https://github.com/AndreasSchoenle>`_. + +* Fixed test compilation under FreeBSD + (`#433 <https://github.com/fmtlib/fmt/issues/433>`_). + +* Fixed various warnings (`#403 <https://github.com/fmtlib/fmt/pull/403>`_, + `#410 <https://github.com/fmtlib/fmt/pull/410>`_ and + `#510 <https://github.com/fmtlib/fmt/pull/510>`_). + Thanks `@Lecetem <https://github.com/Lectem>`_, + `@chenhayat (Chen Hayat) <https://github.com/chenhayat>`_ and + `@trozen <https://github.com/trozen>`_. + +* Worked around a broken ``__builtin_clz`` in clang with MS codegen + (`#519 <https://github.com/fmtlib/fmt/issues/519>`_). + +* Removed redundant include + (`#479 <https://github.com/fmtlib/fmt/issues/479>`_). + +* Fixed documentation issues. + +3.0.1 - 2016-11-01 +------------------ +* Fixed handling of thousands separator + (`#353 <https://github.com/fmtlib/fmt/issues/353>`_). + +* Fixed handling of ``unsigned char`` strings + (`#373 <https://github.com/fmtlib/fmt/issues/373>`_). + +* Corrected buffer growth when formatting time + (`#367 <https://github.com/fmtlib/fmt/issues/367>`_). + +* Removed warnings under MSVC and clang + (`#318 <https://github.com/fmtlib/fmt/issues/318>`_, + `#250 <https://github.com/fmtlib/fmt/issues/250>`_, also merged + `#385 <https://github.com/fmtlib/fmt/pull/385>`_ and + `#361 <https://github.com/fmtlib/fmt/pull/361>`_). + Thanks `@jcelerier (Jean-MichaĂ«l Celerier) <https://github.com/jcelerier>`_ + and `@nmoehrle (Nils Moehrle) <https://github.com/nmoehrle>`_. + +* Fixed compilation issues under Android + (`#327 <https://github.com/fmtlib/fmt/pull/327>`_, + `#345 <https://github.com/fmtlib/fmt/issues/345>`_ and + `#381 <https://github.com/fmtlib/fmt/pull/381>`_), + FreeBSD (`#358 <https://github.com/fmtlib/fmt/pull/358>`_), + Cygwin (`#388 <https://github.com/fmtlib/fmt/issues/388>`_), + MinGW (`#355 <https://github.com/fmtlib/fmt/issues/355>`_) as well as other + issues (`#350 <https://github.com/fmtlib/fmt/issues/350>`_, + `#366 <https://github.com/fmtlib/fmt/issues/355>`_, + `#348 <https://github.com/fmtlib/fmt/pull/348>`_, + `#402 <https://github.com/fmtlib/fmt/pull/402>`_, + `#405 <https://github.com/fmtlib/fmt/pull/405>`_). + Thanks to `@dpantele (Dmitry) <https://github.com/dpantele>`_, + `@hghwng (Hugh Wang) <https://github.com/hghwng>`_, + `@arvedarved (Tilman Keskinöz) <https://github.com/arvedarved>`_, + `@LogicalKnight (Sean) <https://github.com/LogicalKnight>`_ and + `@JanHellwig (Jan Hellwig) <https://github.com/janhellwig>`_. + +* Fixed some documentation issues and extended specification + (`#320 <https://github.com/fmtlib/fmt/issues/320>`_, + `#333 <https://github.com/fmtlib/fmt/pull/333>`_, + `#347 <https://github.com/fmtlib/fmt/issues/347>`_, + `#362 <https://github.com/fmtlib/fmt/pull/362>`_). + Thanks to `@smellman (Taro Matsuzawa aka. btm) + <https://github.com/smellman>`_. + +3.0.0 - 2016-05-07 +------------------ + +* The project has been renamed from C++ Format (cppformat) to fmt for + consistency with the used namespace and macro prefix + (`#307 <https://github.com/fmtlib/fmt/issues/307>`_). + Library headers are now located in the ``fmt`` directory: + + .. code:: c++ + + #include "fmt/format.h" + + Including ``format.h`` from the ``cppformat`` directory is deprecated + but works via a proxy header which will be removed in the next major version. + + The documentation is now available at https://fmt.dev. + +* Added support for `strftime <http://en.cppreference.com/w/cpp/chrono/c/strftime>`_-like + `date and time formatting <https://fmt.dev/3.0.0/api.html#date-and-time-formatting>`_ + (`#283 <https://github.com/fmtlib/fmt/issues/283>`_): + + .. code:: c++ + + #include "fmt/time.h" + + std::time_t t = std::time(nullptr); + // Prints "The date is 2016-04-29." (with the current date) + fmt::print("The date is {:%Y-%m-%d}.", *std::localtime(&t)); + +* ``std::ostream`` support including formatting of user-defined types that provide + overloaded ``operator<<`` has been moved to ``fmt/ostream.h``: + + .. code:: c++ + + #include "fmt/ostream.h" + + class Date { + int year_, month_, day_; + public: + Date(int year, int month, int day) : year_(year), month_(month), day_(day) {} + + friend std::ostream &operator<<(std::ostream &os, const Date &d) { + return os << d.year_ << '-' << d.month_ << '-' << d.day_; + } + }; + + std::string s = fmt::format("The date is {}", Date(2012, 12, 9)); + // s == "The date is 2012-12-9" + +* Added support for `custom argument formatters + <https://fmt.dev/3.0.0/api.html#argument-formatters>`_ + (`#235 <https://github.com/fmtlib/fmt/issues/235>`_). + +* Added support for locale-specific integer formatting with the ``n`` specifier + (`#305 <https://github.com/fmtlib/fmt/issues/305>`_): + + .. code:: c++ + + std::setlocale(LC_ALL, "en_US.utf8"); + fmt::print("cppformat: {:n}\n", 1234567); // prints 1,234,567 + +* Sign is now preserved when formatting an integer with an incorrect ``printf`` + format specifier (`#265 <https://github.com/fmtlib/fmt/issues/265>`_): + + .. code:: c++ + + fmt::printf("%lld", -42); // prints -42 + + Note that it would be an undefined behavior in ``std::printf``. + +* Length modifiers such as ``ll`` are now optional in printf formatting + functions and the correct type is determined automatically + (`#255 <https://github.com/fmtlib/fmt/issues/255>`_): + + .. code:: c++ + + fmt::printf("%d", std::numeric_limits<long long>::max()); + + Note that it would be an undefined behavior in ``std::printf``. + +* Added initial support for custom formatters + (`#231 <https://github.com/fmtlib/fmt/issues/231>`_). + +* Fixed detection of user-defined literal support on Intel C++ compiler + (`#311 <https://github.com/fmtlib/fmt/issues/311>`_, + `#312 <https://github.com/fmtlib/fmt/pull/312>`_). + Thanks to `@dean0x7d (Dean Moldovan) <https://github.com/dean0x7d>`_ and + `@speth (Ray Speth) <https://github.com/speth>`_. + +* Reduced compile time + (`#243 <https://github.com/fmtlib/fmt/pull/243>`_, + `#249 <https://github.com/fmtlib/fmt/pull/249>`_, + `#317 <https://github.com/fmtlib/fmt/issues/317>`_): + + .. image:: https://cloud.githubusercontent.com/assets/4831417/11614060/ + b9e826d2-9c36-11e5-8666-d4131bf503ef.png + + .. image:: https://cloud.githubusercontent.com/assets/4831417/11614080/ + 6ac903cc-9c37-11e5-8165-26df6efae364.png + + Thanks to `@dean0x7d (Dean Moldovan) <https://github.com/dean0x7d>`_. + +* Compile test fixes (`#313 <https://github.com/fmtlib/fmt/pull/313>`_). + Thanks to `@dean0x7d (Dean Moldovan) <https://github.com/dean0x7d>`_. + +* Documentation fixes (`#239 <https://github.com/fmtlib/fmt/pull/239>`_, + `#248 <https://github.com/fmtlib/fmt/issues/248>`_, + `#252 <https://github.com/fmtlib/fmt/issues/252>`_, + `#258 <https://github.com/fmtlib/fmt/pull/258>`_, + `#260 <https://github.com/fmtlib/fmt/issues/260>`_, + `#301 <https://github.com/fmtlib/fmt/issues/301>`_, + `#309 <https://github.com/fmtlib/fmt/pull/309>`_). + Thanks to `@ReadmeCritic <https://github.com/ReadmeCritic>`_ + `@Gachapen (Magnus Bjerke Vik) <https://github.com/Gachapen>`_ and + `@jwilk (Jakub Wilk) <https://github.com/jwilk>`_. + +* Fixed compiler and sanitizer warnings + (`#244 <https://github.com/fmtlib/fmt/issues/244>`_, + `#256 <https://github.com/fmtlib/fmt/pull/256>`_, + `#259 <https://github.com/fmtlib/fmt/pull/259>`_, + `#263 <https://github.com/fmtlib/fmt/issues/263>`_, + `#274 <https://github.com/fmtlib/fmt/issues/274>`_, + `#277 <https://github.com/fmtlib/fmt/pull/277>`_, + `#286 <https://github.com/fmtlib/fmt/pull/286>`_, + `#291 <https://github.com/fmtlib/fmt/issues/291>`_, + `#296 <https://github.com/fmtlib/fmt/issues/296>`_, + `#308 <https://github.com/fmtlib/fmt/issues/308>`_) + Thanks to `@mwinterb <https://github.com/mwinterb>`_, + `@pweiskircher (Patrik Weiskircher) <https://github.com/pweiskircher>`_, + `@Naios <https://github.com/Naios>`_. + +* Improved compatibility with Windows Store apps + (`#280 <https://github.com/fmtlib/fmt/issues/280>`_, + `#285 <https://github.com/fmtlib/fmt/pull/285>`_) + Thanks to `@mwinterb <https://github.com/mwinterb>`_. + +* Added tests of compatibility with older C++ standards + (`#273 <https://github.com/fmtlib/fmt/pull/273>`_). + Thanks to `@niosHD <https://github.com/niosHD>`_. + +* Fixed Android build (`#271 <https://github.com/fmtlib/fmt/pull/271>`_). + Thanks to `@newnon <https://github.com/newnon>`_. + +* Changed ``ArgMap`` to be backed by a vector instead of a map. + (`#261 <https://github.com/fmtlib/fmt/issues/261>`_, + `#262 <https://github.com/fmtlib/fmt/pull/262>`_). + Thanks to `@mwinterb <https://github.com/mwinterb>`_. + +* Added ``fprintf`` overload that writes to a ``std::ostream`` + (`#251 <https://github.com/fmtlib/fmt/pull/251>`_). + Thanks to `nickhutchinson (Nicholas Hutchinson) <https://github.com/nickhutchinson>`_. + +* Export symbols when building a Windows DLL + (`#245 <https://github.com/fmtlib/fmt/pull/245>`_). + Thanks to `macdems (Maciek Dems) <https://github.com/macdems>`_. + +* Fixed compilation on Cygwin (`#304 <https://github.com/fmtlib/fmt/issues/304>`_). + +* Implemented a workaround for a bug in Apple LLVM version 4.2 of clang + (`#276 <https://github.com/fmtlib/fmt/issues/276>`_). + +* Implemented a workaround for Google Test bug + `#705 <https://github.com/google/googletest/issues/705>`_ on gcc 6 + (`#268 <https://github.com/fmtlib/fmt/issues/268>`_). + Thanks to `octoploid <https://github.com/octoploid>`_. + +* Removed Biicode support because the latter has been discontinued. + +2.1.1 - 2016-04-11 +------------------ + +* The install location for generated CMake files is now configurable via + the ``FMT_CMAKE_DIR`` CMake variable + (`#299 <https://github.com/fmtlib/fmt/pull/299>`_). + Thanks to `@niosHD <https://github.com/niosHD>`_. + +* Documentation fixes (`#252 <https://github.com/fmtlib/fmt/issues/252>`_). + +2.1.0 - 2016-03-21 +------------------ + +* Project layout and build system improvements + (`#267 <https://github.com/fmtlib/fmt/pull/267>`_): + + * The code have been moved to the ``cppformat`` directory. + Including ``format.h`` from the top-level directory is deprecated + but works via a proxy header which will be removed in the next + major version. + + * C++ Format CMake targets now have proper interface definitions. + + * Installed version of the library now supports the header-only + configuration. + + * Targets ``doc``, ``install``, and ``test`` are now disabled if C++ Format + is included as a CMake subproject. They can be enabled by setting + ``FMT_DOC``, ``FMT_INSTALL``, and ``FMT_TEST`` in the parent project. + + Thanks to `@niosHD <https://github.com/niosHD>`_. + +2.0.1 - 2016-03-13 +------------------ + +* Improved CMake find and package support + (`#264 <https://github.com/fmtlib/fmt/issues/264>`_). + Thanks to `@niosHD <https://github.com/niosHD>`_. + +* Fix compile error with Android NDK and mingw32 + (`#241 <https://github.com/fmtlib/fmt/issues/241>`_). + Thanks to `@Gachapen (Magnus Bjerke Vik) <https://github.com/Gachapen>`_. + +* Documentation fixes + (`#248 <https://github.com/fmtlib/fmt/issues/248>`_, + `#260 <https://github.com/fmtlib/fmt/issues/260>`_). + +2.0.0 - 2015-12-01 +------------------ + +General +~~~~~~~ + +* [Breaking] Named arguments + (`#169 <https://github.com/fmtlib/fmt/pull/169>`_, + `#173 <https://github.com/fmtlib/fmt/pull/173>`_, + `#174 <https://github.com/fmtlib/fmt/pull/174>`_): + + .. code:: c++ + + fmt::print("The answer is {answer}.", fmt::arg("answer", 42)); + + Thanks to `@jamboree <https://github.com/jamboree>`_. + +* [Experimental] User-defined literals for format and named arguments + (`#204 <https://github.com/fmtlib/fmt/pull/204>`_, + `#206 <https://github.com/fmtlib/fmt/pull/206>`_, + `#207 <https://github.com/fmtlib/fmt/pull/207>`_): + + .. code:: c++ + + using namespace fmt::literals; + fmt::print("The answer is {answer}.", "answer"_a=42); + + Thanks to `@dean0x7d (Dean Moldovan) <https://github.com/dean0x7d>`_. + +* [Breaking] Formatting of more than 16 arguments is now supported when using + variadic templates + (`#141 <https://github.com/fmtlib/fmt/issues/141>`_). + Thanks to `@Shauren <https://github.com/Shauren>`_. + +* Runtime width specification + (`#168 <https://github.com/fmtlib/fmt/pull/168>`_): + + .. code:: c++ + + fmt::format("{0:{1}}", 42, 5); // gives " 42" + + Thanks to `@jamboree <https://github.com/jamboree>`_. + +* [Breaking] Enums are now formatted with an overloaded ``std::ostream`` insertion + operator (``operator<<``) if available + (`#232 <https://github.com/fmtlib/fmt/issues/232>`_). + +* [Breaking] Changed default ``bool`` format to textual, "true" or "false" + (`#170 <https://github.com/fmtlib/fmt/issues/170>`_): + + .. code:: c++ + + fmt::print("{}", true); // prints "true" + + To print ``bool`` as a number use numeric format specifier such as ``d``: + + .. code:: c++ + + fmt::print("{:d}", true); // prints "1" + +* ``fmt::printf`` and ``fmt::sprintf`` now support formatting of ``bool`` with the + ``%s`` specifier giving textual output, "true" or "false" + (`#223 <https://github.com/fmtlib/fmt/pull/223>`_): + + .. code:: c++ + + fmt::printf("%s", true); // prints "true" + + Thanks to `@LarsGullik <https://github.com/LarsGullik>`_. + +* [Breaking] ``signed char`` and ``unsigned char`` are now formatted as integers by default + (`#217 <https://github.com/fmtlib/fmt/pull/217>`_). + +* [Breaking] Pointers to C strings can now be formatted with the ``p`` specifier + (`#223 <https://github.com/fmtlib/fmt/pull/223>`_): + + .. code:: c++ + + fmt::print("{:p}", "test"); // prints pointer value + + Thanks to `@LarsGullik <https://github.com/LarsGullik>`_. + +* [Breaking] ``fmt::printf`` and ``fmt::sprintf`` now print null pointers as ``(nil)`` + and null strings as ``(null)`` for consistency with glibc + (`#226 <https://github.com/fmtlib/fmt/pull/226>`_). + Thanks to `@LarsGullik <https://github.com/LarsGullik>`_. + +* [Breaking] ``fmt::(s)printf`` now supports formatting of objects of user-defined types + that provide an overloaded ``std::ostream`` insertion operator (``operator<<``) + (`#201 <https://github.com/fmtlib/fmt/issues/201>`_): + + .. code:: c++ + + fmt::printf("The date is %s", Date(2012, 12, 9)); + +* [Breaking] The ``Buffer`` template is now part of the public API and can be used + to implement custom memory buffers + (`#140 <https://github.com/fmtlib/fmt/issues/140>`_). + Thanks to `@polyvertex (Jean-Charles Lefebvre) <https://github.com/polyvertex>`_. + +* [Breaking] Improved compatibility between ``BasicStringRef`` and + `std::experimental::basic_string_view + <http://en.cppreference.com/w/cpp/experimental/basic_string_view>`_ + (`#100 <https://github.com/fmtlib/fmt/issues/100>`_, + `#159 <https://github.com/fmtlib/fmt/issues/159>`_, + `#183 <https://github.com/fmtlib/fmt/issues/183>`_): + + - Comparison operators now compare string content, not pointers + - ``BasicStringRef::c_str`` replaced by ``BasicStringRef::data`` + - ``BasicStringRef`` is no longer assumed to be null-terminated + + References to null-terminated strings are now represented by a new class, + ``BasicCStringRef``. + +* Dependency on pthreads introduced by Google Test is now optional + (`#185 <https://github.com/fmtlib/fmt/issues/185>`_). + +* New CMake options ``FMT_DOC``, ``FMT_INSTALL`` and ``FMT_TEST`` to control + generation of ``doc``, ``install`` and ``test`` targets respectively, on by default + (`#197 <https://github.com/fmtlib/fmt/issues/197>`_, + `#198 <https://github.com/fmtlib/fmt/issues/198>`_, + `#200 <https://github.com/fmtlib/fmt/issues/200>`_). + Thanks to `@maddinat0r (Alex Martin) <https://github.com/maddinat0r>`_. + +* ``noexcept`` is now used when compiling with MSVC2015 + (`#215 <https://github.com/fmtlib/fmt/pull/215>`_). + Thanks to `@dmkrepo (Dmitriy) <https://github.com/dmkrepo>`_. + +* Added an option to disable use of ``windows.h`` when ``FMT_USE_WINDOWS_H`` + is defined as 0 before including ``format.h`` + (`#171 <https://github.com/fmtlib/fmt/issues/171>`_). + Thanks to `@alfps (Alf P. Steinbach) <https://github.com/alfps>`_. + +* [Breaking] ``windows.h`` is now included with ``NOMINMAX`` unless + ``FMT_WIN_MINMAX`` is defined. This is done to prevent breaking code using + ``std::min`` and ``std::max`` and only affects the header-only configuration + (`#152 <https://github.com/fmtlib/fmt/issues/152>`_, + `#153 <https://github.com/fmtlib/fmt/pull/153>`_, + `#154 <https://github.com/fmtlib/fmt/pull/154>`_). + Thanks to `@DevO2012 <https://github.com/DevO2012>`_. + +* Improved support for custom character types + (`#171 <https://github.com/fmtlib/fmt/issues/171>`_). + Thanks to `@alfps (Alf P. Steinbach) <https://github.com/alfps>`_. + +* Added an option to disable use of IOStreams when ``FMT_USE_IOSTREAMS`` + is defined as 0 before including ``format.h`` + (`#205 <https://github.com/fmtlib/fmt/issues/205>`_, + `#208 <https://github.com/fmtlib/fmt/pull/208>`_). + Thanks to `@JodiTheTigger <https://github.com/JodiTheTigger>`_. + +* Improved detection of ``isnan``, ``isinf`` and ``signbit``. + +Optimization +~~~~~~~~~~~~ + +* Made formatting of user-defined types more efficient with a custom stream buffer + (`#92 <https://github.com/fmtlib/fmt/issues/92>`_, + `#230 <https://github.com/fmtlib/fmt/pull/230>`_). + Thanks to `@NotImplemented <https://github.com/NotImplemented>`_. + +* Further improved performance of ``fmt::Writer`` on integer formatting + and fixed a minor regression. Now it is ~7% faster than ``karma::generate`` + on Karma's benchmark + (`#186 <https://github.com/fmtlib/fmt/issues/186>`_). + +* [Breaking] Reduced `compiled code size + <https://github.com/fmtlib/fmt#compile-time-and-code-bloat>`_ + (`#143 <https://github.com/fmtlib/fmt/issues/143>`_, + `#149 <https://github.com/fmtlib/fmt/pull/149>`_). + +Distribution +~~~~~~~~~~~~ + +* [Breaking] Headers are now installed in + ``${CMAKE_INSTALL_PREFIX}/include/cppformat`` + (`#178 <https://github.com/fmtlib/fmt/issues/178>`_). + Thanks to `@jackyf (Eugene V. Lyubimkin) <https://github.com/jackyf>`_. + +* [Breaking] Changed the library name from ``format`` to ``cppformat`` + for consistency with the project name and to avoid potential conflicts + (`#178 <https://github.com/fmtlib/fmt/issues/178>`_). + Thanks to `@jackyf (Eugene V. Lyubimkin) <https://github.com/jackyf>`_. + +* C++ Format is now available in `Debian <https://www.debian.org/>`_ GNU/Linux + (`stretch <https://packages.debian.org/source/stretch/cppformat>`_, + `sid <https://packages.debian.org/source/sid/cppformat>`_) and + derived distributions such as + `Ubuntu <https://launchpad.net/ubuntu/+source/cppformat>`_ 15.10 and later + (`#155 <https://github.com/fmtlib/fmt/issues/155>`_):: + + $ sudo apt-get install libcppformat1-dev + + Thanks to `@jackyf (Eugene V. Lyubimkin) <https://github.com/jackyf>`_. + +* `Packages for Fedora and RHEL <https://admin.fedoraproject.org/pkgdb/package/cppformat/>`_ + are now available. Thanks to Dave Johansen. + +* C++ Format can now be installed via `Homebrew <http://brew.sh/>`_ on OS X + (`#157 <https://github.com/fmtlib/fmt/issues/157>`_):: + + $ brew install cppformat + + Thanks to `@ortho <https://github.com/ortho>`_, Anatoliy Bulukin. + +Documentation +~~~~~~~~~~~~~ + +* Migrated from ReadTheDocs to GitHub Pages for better responsiveness + and reliability + (`#128 <https://github.com/fmtlib/fmt/issues/128>`_). + New documentation address is http://cppformat.github.io/. + + +* Added `Building the documentation + <https://fmt.dev/2.0.0/usage.html#building-the-documentation>`_ + section to the documentation. + +* Documentation build script is now compatible with Python 3 and newer pip versions. + (`#189 <https://github.com/fmtlib/fmt/pull/189>`_, + `#209 <https://github.com/fmtlib/fmt/issues/209>`_). + Thanks to `@JodiTheTigger <https://github.com/JodiTheTigger>`_ and + `@xentec <https://github.com/xentec>`_. + +* Documentation fixes and improvements + (`#36 <https://github.com/fmtlib/fmt/issues/36>`_, + `#75 <https://github.com/fmtlib/fmt/issues/75>`_, + `#125 <https://github.com/fmtlib/fmt/issues/125>`_, + `#160 <https://github.com/fmtlib/fmt/pull/160>`_, + `#161 <https://github.com/fmtlib/fmt/pull/161>`_, + `#162 <https://github.com/fmtlib/fmt/issues/162>`_, + `#165 <https://github.com/fmtlib/fmt/issues/165>`_, + `#210 <https://github.com/fmtlib/fmt/issues/210>`_). + Thanks to `@syohex (Syohei YOSHIDA) <https://github.com/syohex>`_ and + bug reporters. + +* Fixed out-of-tree documentation build + (`#177 <https://github.com/fmtlib/fmt/issues/177>`_). + Thanks to `@jackyf (Eugene V. Lyubimkin) <https://github.com/jackyf>`_. + +Fixes +~~~~~ + +* Fixed ``initializer_list`` detection + (`#136 <https://github.com/fmtlib/fmt/issues/136>`_). + Thanks to `@Gachapen (Magnus Bjerke Vik) <https://github.com/Gachapen>`_. + +* [Breaking] Fixed formatting of enums with numeric format specifiers in + ``fmt::(s)printf`` + (`#131 <https://github.com/fmtlib/fmt/issues/131>`_, + `#139 <https://github.com/fmtlib/fmt/issues/139>`_): + + .. code:: c++ + + enum { ANSWER = 42 }; + fmt::printf("%d", ANSWER); + + Thanks to `@Naios <https://github.com/Naios>`_. + +* Improved compatibility with old versions of MinGW + (`#129 <https://github.com/fmtlib/fmt/issues/129>`_, + `#130 <https://github.com/fmtlib/fmt/pull/130>`_, + `#132 <https://github.com/fmtlib/fmt/issues/132>`_). + Thanks to `@cstamford (Christopher Stamford) <https://github.com/cstamford>`_. + +* Fixed a compile error on MSVC with disabled exceptions + (`#144 <https://github.com/fmtlib/fmt/issues/144>`_). + +* Added a workaround for broken implementation of variadic templates in MSVC2012 + (`#148 <https://github.com/fmtlib/fmt/issues/148>`_). + +* Placed the anonymous namespace within ``fmt`` namespace for the header-only + configuration + (`#171 <https://github.com/fmtlib/fmt/issues/171>`_). + Thanks to `@alfps (Alf P. Steinbach) <https://github.com/alfps>`_. + +* Fixed issues reported by Coverity Scan + (`#187 <https://github.com/fmtlib/fmt/issues/187>`_, + `#192 <https://github.com/fmtlib/fmt/issues/192>`_). + +* Implemented a workaround for a name lookup bug in MSVC2010 + (`#188 <https://github.com/fmtlib/fmt/issues/188>`_). + +* Fixed compiler warnings + (`#95 <https://github.com/fmtlib/fmt/issues/95>`_, + `#96 <https://github.com/fmtlib/fmt/issues/96>`_, + `#114 <https://github.com/fmtlib/fmt/pull/114>`_, + `#135 <https://github.com/fmtlib/fmt/issues/135>`_, + `#142 <https://github.com/fmtlib/fmt/issues/142>`_, + `#145 <https://github.com/fmtlib/fmt/issues/145>`_, + `#146 <https://github.com/fmtlib/fmt/issues/146>`_, + `#158 <https://github.com/fmtlib/fmt/issues/158>`_, + `#163 <https://github.com/fmtlib/fmt/issues/163>`_, + `#175 <https://github.com/fmtlib/fmt/issues/175>`_, + `#190 <https://github.com/fmtlib/fmt/issues/190>`_, + `#191 <https://github.com/fmtlib/fmt/pull/191>`_, + `#194 <https://github.com/fmtlib/fmt/issues/194>`_, + `#196 <https://github.com/fmtlib/fmt/pull/196>`_, + `#216 <https://github.com/fmtlib/fmt/issues/216>`_, + `#218 <https://github.com/fmtlib/fmt/pull/218>`_, + `#220 <https://github.com/fmtlib/fmt/pull/220>`_, + `#229 <https://github.com/fmtlib/fmt/pull/229>`_, + `#233 <https://github.com/fmtlib/fmt/issues/233>`_, + `#234 <https://github.com/fmtlib/fmt/issues/234>`_, + `#236 <https://github.com/fmtlib/fmt/pull/236>`_, + `#281 <https://github.com/fmtlib/fmt/issues/281>`_, + `#289 <https://github.com/fmtlib/fmt/issues/289>`_). + Thanks to `@seanmiddleditch (Sean Middleditch) <https://github.com/seanmiddleditch>`_, + `@dixlorenz (Dix Lorenz) <https://github.com/dixlorenz>`_, + `@CarterLi (æéæŽČ) <https://github.com/CarterLi>`_, + `@Naios <https://github.com/Naios>`_, + `@fmatthew5876 (Matthew Fioravante) <https://github.com/fmatthew5876>`_, + `@LevskiWeng (Levski Weng) <https://github.com/LevskiWeng>`_, + `@rpopescu <https://github.com/rpopescu>`_, + `@gabime (Gabi Melman) <https://github.com/gabime>`_, + `@cubicool (Jeremy Moles) <https://github.com/cubicool>`_, + `@jkflying (Julian Kent) <https://github.com/jkflying>`_, + `@LogicalKnight (Sean L) <https://github.com/LogicalKnight>`_, + `@inguin (Ingo van Lil) <https://github.com/inguin>`_ and + `@Jopie64 (Johan) <https://github.com/Jopie64>`_. + +* Fixed portability issues (mostly causing test failures) on ARM, ppc64, ppc64le, + s390x and SunOS 5.11 i386 + (`#138 <https://github.com/fmtlib/fmt/issues/138>`_, + `#179 <https://github.com/fmtlib/fmt/issues/179>`_, + `#180 <https://github.com/fmtlib/fmt/issues/180>`_, + `#202 <https://github.com/fmtlib/fmt/issues/202>`_, + `#225 <https://github.com/fmtlib/fmt/issues/225>`_, + `Red Hat Bugzilla Bug 1260297 <https://bugzilla.redhat.com/show_bug.cgi?id=1260297>`_). + Thanks to `@Naios <https://github.com/Naios>`_, + `@jackyf (Eugene V. Lyubimkin) <https://github.com/jackyf>`_ and Dave Johansen. + +* Fixed a name conflict with macro ``free`` defined in + ``crtdbg.h`` when ``_CRTDBG_MAP_ALLOC`` is set + (`#211 <https://github.com/fmtlib/fmt/issues/211>`_). + +* Fixed shared library build on OS X + (`#212 <https://github.com/fmtlib/fmt/pull/212>`_). + Thanks to `@dean0x7d (Dean Moldovan) <https://github.com/dean0x7d>`_. + +* Fixed an overload conflict on MSVC when ``/Zc:wchar_t-`` option is specified + (`#214 <https://github.com/fmtlib/fmt/pull/214>`_). + Thanks to `@slavanap (Vyacheslav Napadovsky) <https://github.com/slavanap>`_. + +* Improved compatibility with MSVC 2008 + (`#236 <https://github.com/fmtlib/fmt/pull/236>`_). + Thanks to `@Jopie64 (Johan) <https://github.com/Jopie64>`_. + +* Improved compatibility with bcc32 + (`#227 <https://github.com/fmtlib/fmt/issues/227>`_). + +* Fixed ``static_assert`` detection on Clang + (`#228 <https://github.com/fmtlib/fmt/pull/228>`_). + Thanks to `@dean0x7d (Dean Moldovan) <https://github.com/dean0x7d>`_. + +1.1.0 - 2015-03-06 +------------------ + +* Added ``BasicArrayWriter``, a class template that provides operations for + formatting and writing data into a fixed-size array + (`#105 <https://github.com/fmtlib/fmt/issues/105>`_ and + `#122 <https://github.com/fmtlib/fmt/issues/122>`_): + + .. code:: c++ + + char buffer[100]; + fmt::ArrayWriter w(buffer); + w.write("The answer is {}", 42); + +* Added `0 A.D. <http://play0ad.com/>`_ and `PenUltima Online (POL) + <http://www.polserver.com/>`_ to the list of notable projects using C++ Format. + +* C++ Format now uses MSVC intrinsics for better formatting performance + (`#115 <https://github.com/fmtlib/fmt/pull/115>`_, + `#116 <https://github.com/fmtlib/fmt/pull/116>`_, + `#118 <https://github.com/fmtlib/fmt/pull/118>`_ and + `#121 <https://github.com/fmtlib/fmt/pull/121>`_). + Previously these optimizations where only used on GCC and Clang. + Thanks to `@CarterLi <https://github.com/CarterLi>`_ and + `@objectx <https://github.com/objectx>`_. + +* CMake install target (`#119 <https://github.com/fmtlib/fmt/pull/119>`_). + Thanks to `@TrentHouliston <https://github.com/TrentHouliston>`_. + + You can now install C++ Format with ``make install`` command. + +* Improved `Biicode <http://www.biicode.com/>`_ support + (`#98 <https://github.com/fmtlib/fmt/pull/98>`_ and + `#104 <https://github.com/fmtlib/fmt/pull/104>`_). Thanks to + `@MariadeAnton <https://github.com/MariadeAnton>`_ and + `@franramirez688 <https://github.com/franramirez688>`_. + +* Improved support for building with `Android NDK + <https://developer.android.com/tools/sdk/ndk/index.html>`_ + (`#107 <https://github.com/fmtlib/fmt/pull/107>`_). + Thanks to `@newnon <https://github.com/newnon>`_. + + The `android-ndk-example <https://github.com/fmtlib/android-ndk-example>`_ + repository provides and example of using C++ Format with Android NDK: + + .. image:: https://raw.githubusercontent.com/fmtlib/android-ndk-example/ + master/screenshot.png + +* Improved documentation of ``SystemError`` and ``WindowsError`` + (`#54 <https://github.com/fmtlib/fmt/issues/54>`_). + +* Various code improvements + (`#110 <https://github.com/fmtlib/fmt/pull/110>`_, + `#111 <https://github.com/fmtlib/fmt/pull/111>`_ + `#112 <https://github.com/fmtlib/fmt/pull/112>`_). + Thanks to `@CarterLi <https://github.com/CarterLi>`_. + +* Improved compile-time errors when formatting wide into narrow strings + (`#117 <https://github.com/fmtlib/fmt/issues/117>`_). + +* Fixed ``BasicWriter::write`` without formatting arguments when C++11 support + is disabled (`#109 <https://github.com/fmtlib/fmt/issues/109>`_). + +* Fixed header-only build on OS X with GCC 4.9 + (`#124 <https://github.com/fmtlib/fmt/issues/124>`_). + +* Fixed packaging issues (`#94 <https://github.com/fmtlib/fmt/issues/94>`_). + +* Added `changelog <https://github.com/fmtlib/fmt/blob/master/ChangeLog.rst>`_ + (`#103 <https://github.com/fmtlib/fmt/issues/103>`_). + +1.0.0 - 2015-02-05 +------------------ + +* Add support for a header-only configuration when ``FMT_HEADER_ONLY`` is + defined before including ``format.h``: + + .. code:: c++ + + #define FMT_HEADER_ONLY + #include "format.h" + +* Compute string length in the constructor of ``BasicStringRef`` + instead of the ``size`` method + (`#79 <https://github.com/fmtlib/fmt/issues/79>`_). + This eliminates size computation for string literals on reasonable optimizing + compilers. + +* Fix formatting of types with overloaded ``operator <<`` for ``std::wostream`` + (`#86 <https://github.com/fmtlib/fmt/issues/86>`_): + + .. code:: c++ + + fmt::format(L"The date is {0}", Date(2012, 12, 9)); + +* Fix linkage of tests on Arch Linux + (`#89 <https://github.com/fmtlib/fmt/issues/89>`_). + +* Allow precision specifier for non-float arguments + (`#90 <https://github.com/fmtlib/fmt/issues/90>`_): + + .. code:: c++ + + fmt::print("{:.3}\n", "Carpet"); // prints "Car" + +* Fix build on Android NDK + (`#93 <https://github.com/fmtlib/fmt/issues/93>`_) + +* Improvements to documentation build procedure. + +* Remove ``FMT_SHARED`` CMake variable in favor of standard `BUILD_SHARED_LIBS + <http://www.cmake.org/cmake/help/v3.0/variable/BUILD_SHARED_LIBS.html>`_. + +* Fix error handling in ``fmt::fprintf``. + +* Fix a number of warnings. + +0.12.0 - 2014-10-25 +------------------- + +* [Breaking] Improved separation between formatting and buffer management. + ``Writer`` is now a base class that cannot be instantiated directly. + The new ``MemoryWriter`` class implements the default buffer management + with small allocations done on stack. So ``fmt::Writer`` should be replaced + with ``fmt::MemoryWriter`` in variable declarations. + + Old code: + + .. code:: c++ + + fmt::Writer w; + + New code: + + .. code:: c++ + + fmt::MemoryWriter w; + + If you pass ``fmt::Writer`` by reference, you can continue to do so: + + .. code:: c++ + + void f(fmt::Writer &w); + + This doesn't affect the formatting API. + +* Support for custom memory allocators + (`#69 <https://github.com/fmtlib/fmt/issues/69>`_) + +* Formatting functions now accept `signed char` and `unsigned char` strings as + arguments (`#73 <https://github.com/fmtlib/fmt/issues/73>`_): + + .. code:: c++ + + auto s = format("GLSL version: {}", glGetString(GL_VERSION)); + +* Reduced code bloat. According to the new `benchmark results + <https://github.com/fmtlib/fmt#compile-time-and-code-bloat>`_, + cppformat is close to ``printf`` and by the order of magnitude better than + Boost Format in terms of compiled code size. + +* Improved appearance of the documentation on mobile by using the `Sphinx + Bootstrap theme <http://ryan-roemer.github.io/sphinx-bootstrap-theme/>`_: + + .. |old| image:: https://cloud.githubusercontent.com/assets/576385/4792130/ + cd256436-5de3-11e4-9a62-c077d0c2b003.png + + .. |new| image:: https://cloud.githubusercontent.com/assets/576385/4792131/ + cd29896c-5de3-11e4-8f59-cac952942bf0.png + + +-------+-------+ + | Old | New | + +-------+-------+ + | |old| | |new| | + +-------+-------+ + +0.11.0 - 2014-08-21 +------------------- + +* Safe printf implementation with a POSIX extension for positional arguments: + + .. code:: c++ + + fmt::printf("Elapsed time: %.2f seconds", 1.23); + fmt::printf("%1$s, %3$d %2$s", weekday, month, day); + +* Arguments of ``char`` type can now be formatted as integers + (Issue `#55 <https://github.com/fmtlib/fmt/issues/55>`_): + + .. code:: c++ + + fmt::format("0x{0:02X}", 'a'); + +* Deprecated parts of the API removed. + +* The library is now built and tested on MinGW with Appveyor in addition to + existing test platforms Linux/GCC, OS X/Clang, Windows/MSVC. + +0.10.0 - 2014-07-01 +------------------- + +**Improved API** + +* All formatting methods are now implemented as variadic functions instead + of using ``operator<<`` for feeding arbitrary arguments into a temporary + formatter object. This works both with C++11 where variadic templates are + used and with older standards where variadic functions are emulated by + providing lightweight wrapper functions defined with the ``FMT_VARIADIC`` + macro. You can use this macro for defining your own portable variadic + functions: + + .. code:: c++ + + void report_error(const char *format, const fmt::ArgList &args) { + fmt::print("Error: {}"); + fmt::print(format, args); + } + FMT_VARIADIC(void, report_error, const char *) + + report_error("file not found: {}", path); + + Apart from a more natural syntax, this also improves performance as there + is no need to construct temporary formatter objects and control arguments' + lifetimes. Because the wrapper functions are very lightweight, this doesn't + cause code bloat even in pre-C++11 mode. + +* Simplified common case of formatting an ``std::string``. Now it requires a + single function call: + + .. code:: c++ + + std::string s = format("The answer is {}.", 42); + + Previously it required 2 function calls: + + .. code:: c++ + + std::string s = str(Format("The answer is {}.") << 42); + + Instead of unsafe ``c_str`` function, ``fmt::Writer`` should be used directly + to bypass creation of ``std::string``: + + .. code:: c++ + + fmt::Writer w; + w.write("The answer is {}.", 42); + w.c_str(); // returns a C string + + This doesn't do dynamic memory allocation for small strings and is less error + prone as the lifetime of the string is the same as for ``std::string::c_str`` + which is well understood (hopefully). + +* Improved consistency in naming functions that are a part of the public API. + Now all public functions are lowercase following the standard library + conventions. Previously it was a combination of lowercase and + CapitalizedWords. + Issue `#50 <https://github.com/fmtlib/fmt/issues/50>`_. + +* Old functions are marked as deprecated and will be removed in the next + release. + +**Other Changes** + +* Experimental support for printf format specifications (work in progress): + + .. code:: c++ + + fmt::printf("The answer is %d.", 42); + std::string s = fmt::sprintf("Look, a %s!", "string"); + +* Support for hexadecimal floating point format specifiers ``a`` and ``A``: + + .. code:: c++ + + print("{:a}", -42.0); // Prints -0x1.5p+5 + print("{:A}", -42.0); // Prints -0X1.5P+5 + +* CMake option ``FMT_SHARED`` that specifies whether to build format as a + shared library (off by default). + +0.9.0 - 2014-05-13 +------------------ + +* More efficient implementation of variadic formatting functions. + +* ``Writer::Format`` now has a variadic overload: + + .. code:: c++ + + Writer out; + out.Format("Look, I'm {}!", "variadic"); + +* For efficiency and consistency with other overloads, variadic overload of + the ``Format`` function now returns ``Writer`` instead of ``std::string``. + Use the ``str`` function to convert it to ``std::string``: + + .. code:: c++ + + std::string s = str(Format("Look, I'm {}!", "variadic")); + +* Replaced formatter actions with output sinks: ``NoAction`` -> ``NullSink``, + ``Write`` -> ``FileSink``, ``ColorWriter`` -> ``ANSITerminalSink``. + This improves naming consistency and shouldn't affect client code unless + these classes are used directly which should be rarely needed. + +* Added ``ThrowSystemError`` function that formats a message and throws + ``SystemError`` containing the formatted message and system-specific error + description. For example, the following code + + .. code:: c++ + + FILE *f = fopen(filename, "r"); + if (!f) + ThrowSystemError(errno, "Failed to open file '{}'") << filename; + + will throw ``SystemError`` exception with description + "Failed to open file '<filename>': No such file or directory" if file + doesn't exist. + +* Support for AppVeyor continuous integration platform. + +* ``Format`` now throws ``SystemError`` in case of I/O errors. + +* Improve test infrastructure. Print functions are now tested by redirecting + the output to a pipe. + +0.8.0 - 2014-04-14 +------------------ + +* Initial release diff --git a/contrib/libs/fmt/LICENSE.rst b/contrib/libs/fmt/LICENSE.rst new file mode 100644 index 0000000000..f0ec3db4d2 --- /dev/null +++ b/contrib/libs/fmt/LICENSE.rst @@ -0,0 +1,27 @@ +Copyright (c) 2012 - present, Victor Zverovich + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +--- Optional exception to the license --- + +As an exception, if, as a result of your compiling your source code, portions +of this Software are embedded into a machine-executable object form of such +source code, you may redistribute such embedded portions in such object form +without including the above copyright and permission notices. diff --git a/contrib/libs/fmt/README.rst b/contrib/libs/fmt/README.rst new file mode 100644 index 0000000000..acddc70ef1 --- /dev/null +++ b/contrib/libs/fmt/README.rst @@ -0,0 +1,506 @@ +{fmt} +===== + +.. image:: https://travis-ci.org/fmtlib/fmt.png?branch=master + :target: https://travis-ci.org/fmtlib/fmt + +.. image:: https://ci.appveyor.com/api/projects/status/ehjkiefde6gucy1v + :target: https://ci.appveyor.com/project/vitaut/fmt + +.. image:: https://oss-fuzz-build-logs.storage.googleapis.com/badges/fmt.svg + :alt: fmt is continuously fuzzed at oss-fuzz + :target: https://bugs.chromium.org/p/oss-fuzz/issues/list?\ + colspec=ID%20Type%20Component%20Status%20Proj%20Reported%20Owner%20\ + Summary&q=proj%3Dfmt&can=1 + +.. image:: https://img.shields.io/badge/stackoverflow-fmt-blue.svg + :alt: Ask questions at StackOverflow with the tag fmt + :target: https://stackoverflow.com/questions/tagged/fmt + +**{fmt}** is an open-source formatting library providing a fast and safe +alternative to C stdio and C++ iostreams. + +If you like this project, please consider donating to BYSOL, +an initiative to help victims of political repressions in Belarus: +https://www.facebook.com/donate/759400044849707/108388587646909/. + +`Documentation <https://fmt.dev>`__ + +Q&A: ask questions on `StackOverflow with the tag fmt +<https://stackoverflow.com/questions/tagged/fmt>`_. + +Try {fmt} in `Compiler Explorer <https://godbolt.org/z/Eq5763>`_. + +Features +-------- + +* Simple `format API <https://fmt.dev/latest/api.html>`_ with positional arguments + for localization +* Implementation of `C++20 std::format + <https://en.cppreference.com/w/cpp/utility/format>`__ +* `Format string syntax <https://fmt.dev/latest/syntax.html>`_ similar to Python's + `format <https://docs.python.org/3/library/stdtypes.html#str.format>`_ +* Fast IEEE 754 floating-point formatter with correct rounding, shortness and + round-trip guarantees +* Safe `printf implementation + <https://fmt.dev/latest/api.html#printf-formatting>`_ including the POSIX + extension for positional arguments +* Extensibility: `support for user-defined types + <https://fmt.dev/latest/api.html#formatting-user-defined-types>`_ +* High performance: faster than common standard library implementations of + ``(s)printf``, iostreams, ``to_string`` and ``to_chars``, see `Speed tests`_ + and `Converting a hundred million integers to strings per second + <http://www.zverovich.net/2020/06/13/fast-int-to-string-revisited.html>`_ +* Small code size both in terms of source code with the minimum configuration + consisting of just three files, ``core.h``, ``format.h`` and ``format-inl.h``, + and compiled code; see `Compile time and code bloat`_ +* Reliability: the library has an extensive set of `tests + <https://github.com/fmtlib/fmt/tree/master/test>`_ and is `continuously fuzzed + <https://bugs.chromium.org/p/oss-fuzz/issues/list?colspec=ID%20Type%20 + Component%20Status%20Proj%20Reported%20Owner%20Summary&q=proj%3Dfmt&can=1>`_ +* Safety: the library is fully type safe, errors in format strings can be + reported at compile time, automatic memory management prevents buffer overflow + errors +* Ease of use: small self-contained code base, no external dependencies, + permissive MIT `license + <https://github.com/fmtlib/fmt/blob/master/LICENSE.rst>`_ +* `Portability <https://fmt.dev/latest/index.html#portability>`_ with + consistent output across platforms and support for older compilers +* Clean warning-free codebase even on high warning levels such as + ``-Wall -Wextra -pedantic`` +* Locale-independence by default +* Optional header-only configuration enabled with the ``FMT_HEADER_ONLY`` macro + +See the `documentation <https://fmt.dev>`_ for more details. + +Examples +-------- + +**Print to stdout** (`run <https://godbolt.org/z/Tevcjh>`_) + +.. code:: c++ + + #include <fmt/core.h> + + int main() { + fmt::print("Hello, world!\n"); + } + +**Format a string** (`run <https://godbolt.org/z/oK8h33>`_) + +.. code:: c++ + + std::string s = fmt::format("The answer is {}.", 42); + // s == "The answer is 42." + +**Format a string using positional arguments** (`run <https://godbolt.org/z/Yn7Txe>`_) + +.. code:: c++ + + std::string s = fmt::format("I'd rather be {1} than {0}.", "right", "happy"); + // s == "I'd rather be happy than right." + +**Print chrono durations** (`run <https://godbolt.org/z/K8s4Mc>`_) + +.. code:: c++ + + #include <fmt/chrono.h> + + int main() { + using namespace std::literals::chrono_literals; + fmt::print("Default format: {} {}\n", 42s, 100ms); + fmt::print("strftime-like format: {:%H:%M:%S}\n", 3h + 15min + 30s); + } + +Output:: + + Default format: 42s 100ms + strftime-like format: 03:15:30 + +**Print a container** (`run <https://godbolt.org/z/MjsY7c>`_) + +.. code:: c++ + + #include <vector> + #include <fmt/ranges.h> + + int main() { + std::vector<int> v = {1, 2, 3}; + fmt::print("{}\n", v); + } + +Output:: + + {1, 2, 3} + +**Check a format string at compile time** + +.. code:: c++ + + std::string s = fmt::format(FMT_STRING("{:d}"), "don't panic"); + +This gives a compile-time error because ``d`` is an invalid format specifier for +a string. + +**Write a file from a single thread** + +.. code:: c++ + + #include <fmt/os.h> + + int main() { + auto out = fmt::output_file("guide.txt"); + out.print("Don't {}", "Panic"); + } + +This can be `5 to 9 times faster than fprintf +<http://www.zverovich.net/2020/08/04/optimal-file-buffer-size.html>`_. + +**Print with colors and text styles** + +.. code:: c++ + + #include <fmt/color.h> + + int main() { + fmt::print(fg(fmt::color::crimson) | fmt::emphasis::bold, + "Hello, {}!\n", "world"); + fmt::print(fg(fmt::color::floral_white) | bg(fmt::color::slate_gray) | + fmt::emphasis::underline, "Hello, {}!\n", "ĐŒĐžŃ"); + fmt::print(fg(fmt::color::steel_blue) | fmt::emphasis::italic, + "Hello, {}!\n", "äžç"); + } + +Output on a modern terminal: + +.. image:: https://user-images.githubusercontent.com/ + 576385/88485597-d312f600-cf2b-11ea-9cbe-61f535a86e28.png + +Benchmarks +---------- + +Speed tests +~~~~~~~~~~~ + +================= ============= =========== +Library Method Run Time, s +================= ============= =========== +libc printf 1.04 +libc++ std::ostream 3.05 +{fmt} 6.1.1 fmt::print 0.75 +Boost Format 1.67 boost::format 7.24 +Folly Format folly::format 2.23 +================= ============= =========== + +{fmt} is the fastest of the benchmarked methods, ~35% faster than ``printf``. + +The above results were generated by building ``tinyformat_test.cpp`` on macOS +10.14.6 with ``clang++ -O3 -DNDEBUG -DSPEED_TEST -DHAVE_FORMAT``, and taking the +best of three runs. In the test, the format string ``"%0.10f:%04d:%+g:%s:%p:%c:%%\n"`` +or equivalent is filled 2,000,000 times with output sent to ``/dev/null``; for +further details refer to the `source +<https://github.com/fmtlib/format-benchmark/blob/master/tinyformat_test.cpp>`_. + +{fmt} is up to 20-30x faster than ``std::ostringstream`` and ``sprintf`` on +floating-point formatting (`dtoa-benchmark <https://github.com/fmtlib/dtoa-benchmark>`_) +and faster than `double-conversion <https://github.com/google/double-conversion>`_ and +`ryu <https://github.com/ulfjack/ryu>`_: + +.. image:: https://user-images.githubusercontent.com/576385/ + 95684665-11719600-0ba8-11eb-8e5b-972ff4e49428.png + :target: https://fmt.dev/unknown_mac64_clang12.0.html + +Compile time and code bloat +~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The script `bloat-test.py +<https://github.com/fmtlib/format-benchmark/blob/master/bloat-test.py>`_ +from `format-benchmark <https://github.com/fmtlib/format-benchmark>`_ +tests compile time and code bloat for nontrivial projects. +It generates 100 translation units and uses ``printf()`` or its alternative +five times in each to simulate a medium sized project. The resulting +executable size and compile time (Apple LLVM version 8.1.0 (clang-802.0.42), +macOS Sierra, best of three) is shown in the following tables. + +**Optimized build (-O3)** + +============= =============== ==================== ================== +Method Compile Time, s Executable size, KiB Stripped size, KiB +============= =============== ==================== ================== +printf 2.6 29 26 +printf+string 16.4 29 26 +iostreams 31.1 59 55 +{fmt} 19.0 37 34 +Boost Format 91.9 226 203 +Folly Format 115.7 101 88 +============= =============== ==================== ================== + +As you can see, {fmt} has 60% less overhead in terms of resulting binary code +size compared to iostreams and comes pretty close to ``printf``. Boost Format +and Folly Format have the largest overheads. + +``printf+string`` is the same as ``printf`` but with extra ``<string>`` +include to measure the overhead of the latter. + +**Non-optimized build** + +============= =============== ==================== ================== +Method Compile Time, s Executable size, KiB Stripped size, KiB +============= =============== ==================== ================== +printf 2.2 33 30 +printf+string 16.0 33 30 +iostreams 28.3 56 52 +{fmt} 18.2 59 50 +Boost Format 54.1 365 303 +Folly Format 79.9 445 430 +============= =============== ==================== ================== + +``libc``, ``lib(std)c++`` and ``libfmt`` are all linked as shared libraries to +compare formatting function overhead only. Boost Format is a +header-only library so it doesn't provide any linkage options. + +Running the tests +~~~~~~~~~~~~~~~~~ + +Please refer to `Building the library`__ for the instructions on how to build +the library and run the unit tests. + +__ https://fmt.dev/latest/usage.html#building-the-library + +Benchmarks reside in a separate repository, +`format-benchmarks <https://github.com/fmtlib/format-benchmark>`_, +so to run the benchmarks you first need to clone this repository and +generate Makefiles with CMake:: + + $ git clone --recursive https://github.com/fmtlib/format-benchmark.git + $ cd format-benchmark + $ cmake . + +Then you can run the speed test:: + + $ make speed-test + +or the bloat test:: + + $ make bloat-test + +Projects using this library +--------------------------- + +* `0 A.D. <https://play0ad.com/>`_: a free, open-source, cross-platform + real-time strategy game + +* `AMPL/MP <https://github.com/ampl/mp>`_: + an open-source library for mathematical programming + +* `Aseprite <https://github.com/aseprite/aseprite>`_: + animated sprite editor & pixel art tool + +* `AvioBook <https://www.aviobook.aero/en>`_: a comprehensive aircraft + operations suite + +* `Blizzard Battle.net <https://battle.net/>`_: an online gaming platform + +* `Celestia <https://celestia.space/>`_: real-time 3D visualization of space + +* `Ceph <https://ceph.com/>`_: a scalable distributed storage system + +* `ccache <https://ccache.dev/>`_: a compiler cache + +* `ClickHouse <https://github.com/ClickHouse/ClickHouse>`_: analytical database + management system + +* `CUAUV <http://cuauv.org/>`_: Cornell University's autonomous underwater + vehicle + +* `Drake <https://drake.mit.edu/>`_: a planning, control, and analysis toolbox + for nonlinear dynamical systems (MIT) + +* `Envoy <https://lyft.github.io/envoy/>`_: C++ L7 proxy and communication bus + (Lyft) + +* `FiveM <https://fivem.net/>`_: a modification framework for GTA V + +* `Folly <https://github.com/facebook/folly>`_: Facebook open-source library + +* `HarpyWar/pvpgn <https://github.com/pvpgn/pvpgn-server>`_: + Player vs Player Gaming Network with tweaks + +* `KBEngine <https://github.com/kbengine/kbengine>`_: an open-source MMOG server + engine + +* `Keypirinha <https://keypirinha.com/>`_: a semantic launcher for Windows + +* `Kodi <https://kodi.tv/>`_ (formerly xbmc): home theater software + +* `Knuth <https://kth.cash/>`_: high-performance Bitcoin full-node + +* `Microsoft Verona <https://github.com/microsoft/verona>`_: + research programming language for concurrent ownership + +* `MongoDB <https://mongodb.com/>`_: distributed document database + +* `MongoDB Smasher <https://github.com/duckie/mongo_smasher>`_: a small tool to + generate randomized datasets + +* `OpenSpace <https://openspaceproject.com/>`_: an open-source + astrovisualization framework + +* `PenUltima Online (POL) <https://www.polserver.com/>`_: + an MMO server, compatible with most Ultima Online clients + +* `PyTorch <https://github.com/pytorch/pytorch>`_: an open-source machine + learning library + +* `quasardb <https://www.quasardb.net/>`_: a distributed, high-performance, + associative database + +* `Quill <https://github.com/odygrd/quill>`_: asynchronous low-latency logging library + +* `QKW <https://github.com/ravijanjam/qkw>`_: generalizing aliasing to simplify + navigation, and executing complex multi-line terminal command sequences + +* `redis-cerberus <https://github.com/HunanTV/redis-cerberus>`_: a Redis cluster + proxy + +* `redpanda <https://vectorized.io/redpanda>`_: a 10x faster KafkaÂź replacement + for mission critical systems written in C++ + +* `rpclib <http://rpclib.net/>`_: a modern C++ msgpack-RPC server and client + library + +* `Salesforce Analytics Cloud + <https://www.salesforce.com/analytics-cloud/overview/>`_: + business intelligence software + +* `Scylla <https://www.scylladb.com/>`_: a Cassandra-compatible NoSQL data store + that can handle 1 million transactions per second on a single server + +* `Seastar <http://www.seastar-project.org/>`_: an advanced, open-source C++ + framework for high-performance server applications on modern hardware + +* `spdlog <https://github.com/gabime/spdlog>`_: super fast C++ logging library + +* `Stellar <https://www.stellar.org/>`_: financial platform + +* `Touch Surgery <https://www.touchsurgery.com/>`_: surgery simulator + +* `TrinityCore <https://github.com/TrinityCore/TrinityCore>`_: open-source + MMORPG framework + +* `Windows Terminal <https://github.com/microsoft/terminal>`_: the new Windows + terminal + +`More... <https://github.com/search?q=fmtlib&type=Code>`_ + +If you are aware of other projects using this library, please let me know +by `email <mailto:victor.zverovich@gmail.com>`_ or by submitting an +`issue <https://github.com/fmtlib/fmt/issues>`_. + +Motivation +---------- + +So why yet another formatting library? + +There are plenty of methods for doing this task, from standard ones like +the printf family of function and iostreams to Boost Format and FastFormat +libraries. The reason for creating a new library is that every existing +solution that I found either had serious issues or didn't provide +all the features I needed. + +printf +~~~~~~ + +The good thing about ``printf`` is that it is pretty fast and readily available +being a part of the C standard library. The main drawback is that it +doesn't support user-defined types. ``printf`` also has safety issues although +they are somewhat mitigated with `__attribute__ ((format (printf, ...)) +<https://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html>`_ in GCC. +There is a POSIX extension that adds positional arguments required for +`i18n <https://en.wikipedia.org/wiki/Internationalization_and_localization>`_ +to ``printf`` but it is not a part of C99 and may not be available on some +platforms. + +iostreams +~~~~~~~~~ + +The main issue with iostreams is best illustrated with an example: + +.. code:: c++ + + std::cout << std::setprecision(2) << std::fixed << 1.23456 << "\n"; + +which is a lot of typing compared to printf: + +.. code:: c++ + + printf("%.2f\n", 1.23456); + +Matthew Wilson, the author of FastFormat, called this "chevron hell". iostreams +don't support positional arguments by design. + +The good part is that iostreams support user-defined types and are safe although +error handling is awkward. + +Boost Format +~~~~~~~~~~~~ + +This is a very powerful library which supports both ``printf``-like format +strings and positional arguments. Its main drawback is performance. According to +various, benchmarks it is much slower than other methods considered here. Boost +Format also has excessive build times and severe code bloat issues (see +`Benchmarks`_). + +FastFormat +~~~~~~~~~~ + +This is an interesting library which is fast, safe and has positional arguments. +However, it has significant limitations, citing its author: + + Three features that have no hope of being accommodated within the + current design are: + + * Leading zeros (or any other non-space padding) + * Octal/hexadecimal encoding + * Runtime width/alignment specification + +It is also quite big and has a heavy dependency, STLSoft, which might be too +restrictive for using it in some projects. + +Boost Spirit.Karma +~~~~~~~~~~~~~~~~~~ + +This is not really a formatting library but I decided to include it here for +completeness. As iostreams, it suffers from the problem of mixing verbatim text +with arguments. The library is pretty fast, but slower on integer formatting +than ``fmt::format_to`` with format string compilation on Karma's own benchmark, +see `Converting a hundred million integers to strings per second +<http://www.zverovich.net/2020/06/13/fast-int-to-string-revisited.html>`_. + +License +------- + +{fmt} is distributed under the MIT `license +<https://github.com/fmtlib/fmt/blob/master/LICENSE.rst>`_. + +Documentation License +--------------------- + +The `Format String Syntax <https://fmt.dev/latest/syntax.html>`_ +section in the documentation is based on the one from Python `string module +documentation <https://docs.python.org/3/library/string.html#module-string>`_. +For this reason the documentation is distributed under the Python Software +Foundation license available in `doc/python-license.txt +<https://raw.github.com/fmtlib/fmt/master/doc/python-license.txt>`_. +It only applies if you distribute the documentation of {fmt}. + +Maintainers +----------- + +The {fmt} library is maintained by Victor Zverovich (`vitaut +<https://github.com/vitaut>`_) and Jonathan MĂŒller (`foonathan +<https://github.com/foonathan>`_) with contributions from many other people. +See `Contributors <https://github.com/fmtlib/fmt/graphs/contributors>`_ and +`Releases <https://github.com/fmtlib/fmt/releases>`_ for some of the names. +Let us know if your contribution is not listed or mentioned incorrectly and +we'll make it right. diff --git a/contrib/libs/fmt/include/fmt/chrono.h b/contrib/libs/fmt/include/fmt/chrono.h new file mode 100644 index 0000000000..1a3b8d5e5c --- /dev/null +++ b/contrib/libs/fmt/include/fmt/chrono.h @@ -0,0 +1,1118 @@ +// Formatting library for C++ - chrono support +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#ifndef FMT_CHRONO_H_ +#define FMT_CHRONO_H_ + +#include <chrono> +#include <ctime> +#include <locale> +#include <sstream> + +#include "format.h" +#include "locale.h" + +FMT_BEGIN_NAMESPACE + +// Enable safe chrono durations, unless explicitly disabled. +#ifndef FMT_SAFE_DURATION_CAST +# define FMT_SAFE_DURATION_CAST 1 +#endif +#if FMT_SAFE_DURATION_CAST + +// For conversion between std::chrono::durations without undefined +// behaviour or erroneous results. +// This is a stripped down version of duration_cast, for inclusion in fmt. +// See https://github.com/pauldreik/safe_duration_cast +// +// Copyright Paul Dreik 2019 +namespace safe_duration_cast { + +template <typename To, typename From, + FMT_ENABLE_IF(!std::is_same<From, To>::value && + std::numeric_limits<From>::is_signed == + std::numeric_limits<To>::is_signed)> +FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) { + ec = 0; + using F = std::numeric_limits<From>; + using T = std::numeric_limits<To>; + static_assert(F::is_integer, "From must be integral"); + static_assert(T::is_integer, "To must be integral"); + + // A and B are both signed, or both unsigned. + if (F::digits <= T::digits) { + // From fits in To without any problem. + } else { + // From does not always fit in To, resort to a dynamic check. + if (from < (T::min)() || from > (T::max)()) { + // outside range. + ec = 1; + return {}; + } + } + return static_cast<To>(from); +} + +/** + * converts From to To, without loss. If the dynamic value of from + * can't be converted to To without loss, ec is set. + */ +template <typename To, typename From, + FMT_ENABLE_IF(!std::is_same<From, To>::value && + std::numeric_limits<From>::is_signed != + std::numeric_limits<To>::is_signed)> +FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) { + ec = 0; + using F = std::numeric_limits<From>; + using T = std::numeric_limits<To>; + static_assert(F::is_integer, "From must be integral"); + static_assert(T::is_integer, "To must be integral"); + + if (detail::const_check(F::is_signed && !T::is_signed)) { + // From may be negative, not allowed! + if (fmt::detail::is_negative(from)) { + ec = 1; + return {}; + } + // From is positive. Can it always fit in To? + if (F::digits > T::digits && + from > static_cast<From>(detail::max_value<To>())) { + ec = 1; + return {}; + } + } + + if (!F::is_signed && T::is_signed && F::digits >= T::digits && + from > static_cast<From>(detail::max_value<To>())) { + ec = 1; + return {}; + } + return static_cast<To>(from); // Lossless conversion. +} + +template <typename To, typename From, + FMT_ENABLE_IF(std::is_same<From, To>::value)> +FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) { + ec = 0; + return from; +} // function + +// clang-format off +/** + * converts From to To if possible, otherwise ec is set. + * + * input | output + * ---------------------------------|--------------- + * NaN | NaN + * Inf | Inf + * normal, fits in output | converted (possibly lossy) + * normal, does not fit in output | ec is set + * subnormal | best effort + * -Inf | -Inf + */ +// clang-format on +template <typename To, typename From, + FMT_ENABLE_IF(!std::is_same<From, To>::value)> +FMT_CONSTEXPR To safe_float_conversion(const From from, int& ec) { + ec = 0; + using T = std::numeric_limits<To>; + static_assert(std::is_floating_point<From>::value, "From must be floating"); + static_assert(std::is_floating_point<To>::value, "To must be floating"); + + // catch the only happy case + if (std::isfinite(from)) { + if (from >= T::lowest() && from <= (T::max)()) { + return static_cast<To>(from); + } + // not within range. + ec = 1; + return {}; + } + + // nan and inf will be preserved + return static_cast<To>(from); +} // function + +template <typename To, typename From, + FMT_ENABLE_IF(std::is_same<From, To>::value)> +FMT_CONSTEXPR To safe_float_conversion(const From from, int& ec) { + ec = 0; + static_assert(std::is_floating_point<From>::value, "From must be floating"); + return from; +} + +/** + * safe duration cast between integral durations + */ +template <typename To, typename FromRep, typename FromPeriod, + FMT_ENABLE_IF(std::is_integral<FromRep>::value), + FMT_ENABLE_IF(std::is_integral<typename To::rep>::value)> +To safe_duration_cast(std::chrono::duration<FromRep, FromPeriod> from, + int& ec) { + using From = std::chrono::duration<FromRep, FromPeriod>; + ec = 0; + // the basic idea is that we need to convert from count() in the from type + // to count() in the To type, by multiplying it with this: + struct Factor + : std::ratio_divide<typename From::period, typename To::period> {}; + + static_assert(Factor::num > 0, "num must be positive"); + static_assert(Factor::den > 0, "den must be positive"); + + // the conversion is like this: multiply from.count() with Factor::num + // /Factor::den and convert it to To::rep, all this without + // overflow/underflow. let's start by finding a suitable type that can hold + // both To, From and Factor::num + using IntermediateRep = + typename std::common_type<typename From::rep, typename To::rep, + decltype(Factor::num)>::type; + + // safe conversion to IntermediateRep + IntermediateRep count = + lossless_integral_conversion<IntermediateRep>(from.count(), ec); + if (ec) return {}; + // multiply with Factor::num without overflow or underflow + if (detail::const_check(Factor::num != 1)) { + const auto max1 = detail::max_value<IntermediateRep>() / Factor::num; + if (count > max1) { + ec = 1; + return {}; + } + const auto min1 = + (std::numeric_limits<IntermediateRep>::min)() / Factor::num; + if (count < min1) { + ec = 1; + return {}; + } + count *= Factor::num; + } + + if (detail::const_check(Factor::den != 1)) count /= Factor::den; + auto tocount = lossless_integral_conversion<typename To::rep>(count, ec); + return ec ? To() : To(tocount); +} + +/** + * safe duration_cast between floating point durations + */ +template <typename To, typename FromRep, typename FromPeriod, + FMT_ENABLE_IF(std::is_floating_point<FromRep>::value), + FMT_ENABLE_IF(std::is_floating_point<typename To::rep>::value)> +To safe_duration_cast(std::chrono::duration<FromRep, FromPeriod> from, + int& ec) { + using From = std::chrono::duration<FromRep, FromPeriod>; + ec = 0; + if (std::isnan(from.count())) { + // nan in, gives nan out. easy. + return To{std::numeric_limits<typename To::rep>::quiet_NaN()}; + } + // maybe we should also check if from is denormal, and decide what to do about + // it. + + // +-inf should be preserved. + if (std::isinf(from.count())) { + return To{from.count()}; + } + + // the basic idea is that we need to convert from count() in the from type + // to count() in the To type, by multiplying it with this: + struct Factor + : std::ratio_divide<typename From::period, typename To::period> {}; + + static_assert(Factor::num > 0, "num must be positive"); + static_assert(Factor::den > 0, "den must be positive"); + + // the conversion is like this: multiply from.count() with Factor::num + // /Factor::den and convert it to To::rep, all this without + // overflow/underflow. let's start by finding a suitable type that can hold + // both To, From and Factor::num + using IntermediateRep = + typename std::common_type<typename From::rep, typename To::rep, + decltype(Factor::num)>::type; + + // force conversion of From::rep -> IntermediateRep to be safe, + // even if it will never happen be narrowing in this context. + IntermediateRep count = + safe_float_conversion<IntermediateRep>(from.count(), ec); + if (ec) { + return {}; + } + + // multiply with Factor::num without overflow or underflow + if (Factor::num != 1) { + constexpr auto max1 = detail::max_value<IntermediateRep>() / + static_cast<IntermediateRep>(Factor::num); + if (count > max1) { + ec = 1; + return {}; + } + constexpr auto min1 = std::numeric_limits<IntermediateRep>::lowest() / + static_cast<IntermediateRep>(Factor::num); + if (count < min1) { + ec = 1; + return {}; + } + count *= static_cast<IntermediateRep>(Factor::num); + } + + // this can't go wrong, right? den>0 is checked earlier. + if (Factor::den != 1) { + using common_t = typename std::common_type<IntermediateRep, intmax_t>::type; + count /= static_cast<common_t>(Factor::den); + } + + // convert to the to type, safely + using ToRep = typename To::rep; + + const ToRep tocount = safe_float_conversion<ToRep>(count, ec); + if (ec) { + return {}; + } + return To{tocount}; +} +} // namespace safe_duration_cast +#endif + +// Prevents expansion of a preceding token as a function-style macro. +// Usage: f FMT_NOMACRO() +#define FMT_NOMACRO + +namespace detail { +inline null<> localtime_r FMT_NOMACRO(...) { return null<>(); } +inline null<> localtime_s(...) { return null<>(); } +inline null<> gmtime_r(...) { return null<>(); } +inline null<> gmtime_s(...) { return null<>(); } +} // namespace detail + +// Thread-safe replacement for std::localtime +inline std::tm localtime(std::time_t time) { + struct dispatcher { + std::time_t time_; + std::tm tm_; + + dispatcher(std::time_t t) : time_(t) {} + + bool run() { + using namespace fmt::detail; + return handle(localtime_r(&time_, &tm_)); + } + + bool handle(std::tm* tm) { return tm != nullptr; } + + bool handle(detail::null<>) { + using namespace fmt::detail; + return fallback(localtime_s(&tm_, &time_)); + } + + bool fallback(int res) { return res == 0; } + +#if !FMT_MSC_VER + bool fallback(detail::null<>) { + using namespace fmt::detail; + std::tm* tm = std::localtime(&time_); + if (tm) tm_ = *tm; + return tm != nullptr; + } +#endif + }; + dispatcher lt(time); + // Too big time values may be unsupported. + if (!lt.run()) FMT_THROW(format_error("time_t value out of range")); + return lt.tm_; +} + +inline std::tm localtime( + std::chrono::time_point<std::chrono::system_clock> time_point) { + return localtime(std::chrono::system_clock::to_time_t(time_point)); +} + +// Thread-safe replacement for std::gmtime +inline std::tm gmtime(std::time_t time) { + struct dispatcher { + std::time_t time_; + std::tm tm_; + + dispatcher(std::time_t t) : time_(t) {} + + bool run() { + using namespace fmt::detail; + return handle(gmtime_r(&time_, &tm_)); + } + + bool handle(std::tm* tm) { return tm != nullptr; } + + bool handle(detail::null<>) { + using namespace fmt::detail; + return fallback(gmtime_s(&tm_, &time_)); + } + + bool fallback(int res) { return res == 0; } + +#if !FMT_MSC_VER + bool fallback(detail::null<>) { + std::tm* tm = std::gmtime(&time_); + if (tm) tm_ = *tm; + return tm != nullptr; + } +#endif + }; + dispatcher gt(time); + // Too big time values may be unsupported. + if (!gt.run()) FMT_THROW(format_error("time_t value out of range")); + return gt.tm_; +} + +inline std::tm gmtime( + std::chrono::time_point<std::chrono::system_clock> time_point) { + return gmtime(std::chrono::system_clock::to_time_t(time_point)); +} + +namespace detail { +inline size_t strftime(char* str, size_t count, const char* format, + const std::tm* time) { + return std::strftime(str, count, format, time); +} + +inline size_t strftime(wchar_t* str, size_t count, const wchar_t* format, + const std::tm* time) { + return std::wcsftime(str, count, format, time); +} +} // namespace detail + +template <typename Char> +struct formatter<std::chrono::time_point<std::chrono::system_clock>, Char> + : formatter<std::tm, Char> { + template <typename FormatContext> + auto format(std::chrono::time_point<std::chrono::system_clock> val, + FormatContext& ctx) -> decltype(ctx.out()) { + std::tm time = localtime(val); + return formatter<std::tm, Char>::format(time, ctx); + } +}; + +template <typename Char> struct formatter<std::tm, Char> { + template <typename ParseContext> + auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { + auto it = ctx.begin(); + if (it != ctx.end() && *it == ':') ++it; + auto end = it; + while (end != ctx.end() && *end != '}') ++end; + tm_format.reserve(detail::to_unsigned(end - it + 1)); + tm_format.append(it, end); + tm_format.push_back('\0'); + return end; + } + + template <typename FormatContext> + auto format(const std::tm& tm, FormatContext& ctx) -> decltype(ctx.out()) { + basic_memory_buffer<Char> buf; + size_t start = buf.size(); + for (;;) { + size_t size = buf.capacity() - start; + size_t count = detail::strftime(&buf[start], size, &tm_format[0], &tm); + if (count != 0) { + buf.resize(start + count); + break; + } + if (size >= tm_format.size() * 256) { + // If the buffer is 256 times larger than the format string, assume + // that `strftime` gives an empty result. There doesn't seem to be a + // better way to distinguish the two cases: + // https://github.com/fmtlib/fmt/issues/367 + break; + } + const size_t MIN_GROWTH = 10; + buf.reserve(buf.capacity() + (size > MIN_GROWTH ? size : MIN_GROWTH)); + } + return std::copy(buf.begin(), buf.end(), ctx.out()); + } + + basic_memory_buffer<Char> tm_format; +}; + +namespace detail { +template <typename Period> FMT_CONSTEXPR const char* get_units() { + return nullptr; +} +template <> FMT_CONSTEXPR const char* get_units<std::atto>() { return "as"; } +template <> FMT_CONSTEXPR const char* get_units<std::femto>() { return "fs"; } +template <> FMT_CONSTEXPR const char* get_units<std::pico>() { return "ps"; } +template <> FMT_CONSTEXPR const char* get_units<std::nano>() { return "ns"; } +template <> FMT_CONSTEXPR const char* get_units<std::micro>() { return "”s"; } +template <> FMT_CONSTEXPR const char* get_units<std::milli>() { return "ms"; } +template <> FMT_CONSTEXPR const char* get_units<std::centi>() { return "cs"; } +template <> FMT_CONSTEXPR const char* get_units<std::deci>() { return "ds"; } +template <> FMT_CONSTEXPR const char* get_units<std::ratio<1>>() { return "s"; } +template <> FMT_CONSTEXPR const char* get_units<std::deca>() { return "das"; } +template <> FMT_CONSTEXPR const char* get_units<std::hecto>() { return "hs"; } +template <> FMT_CONSTEXPR const char* get_units<std::kilo>() { return "ks"; } +template <> FMT_CONSTEXPR const char* get_units<std::mega>() { return "Ms"; } +template <> FMT_CONSTEXPR const char* get_units<std::giga>() { return "Gs"; } +template <> FMT_CONSTEXPR const char* get_units<std::tera>() { return "Ts"; } +template <> FMT_CONSTEXPR const char* get_units<std::peta>() { return "Ps"; } +template <> FMT_CONSTEXPR const char* get_units<std::exa>() { return "Es"; } +template <> FMT_CONSTEXPR const char* get_units<std::ratio<60>>() { + return "m"; +} +template <> FMT_CONSTEXPR const char* get_units<std::ratio<3600>>() { + return "h"; +} + +enum class numeric_system { + standard, + // Alternative numeric system, e.g. ćäș instead of 12 in ja_JP locale. + alternative +}; + +// Parses a put_time-like format string and invokes handler actions. +template <typename Char, typename Handler> +FMT_CONSTEXPR const Char* parse_chrono_format(const Char* begin, + const Char* end, + Handler&& handler) { + auto ptr = begin; + while (ptr != end) { + auto c = *ptr; + if (c == '}') break; + if (c != '%') { + ++ptr; + continue; + } + if (begin != ptr) handler.on_text(begin, ptr); + ++ptr; // consume '%' + if (ptr == end) FMT_THROW(format_error("invalid format")); + c = *ptr++; + switch (c) { + case '%': + handler.on_text(ptr - 1, ptr); + break; + case 'n': { + const Char newline[] = {'\n'}; + handler.on_text(newline, newline + 1); + break; + } + case 't': { + const Char tab[] = {'\t'}; + handler.on_text(tab, tab + 1); + break; + } + // Day of the week: + case 'a': + handler.on_abbr_weekday(); + break; + case 'A': + handler.on_full_weekday(); + break; + case 'w': + handler.on_dec0_weekday(numeric_system::standard); + break; + case 'u': + handler.on_dec1_weekday(numeric_system::standard); + break; + // Month: + case 'b': + handler.on_abbr_month(); + break; + case 'B': + handler.on_full_month(); + break; + // Hour, minute, second: + case 'H': + handler.on_24_hour(numeric_system::standard); + break; + case 'I': + handler.on_12_hour(numeric_system::standard); + break; + case 'M': + handler.on_minute(numeric_system::standard); + break; + case 'S': + handler.on_second(numeric_system::standard); + break; + // Other: + case 'c': + handler.on_datetime(numeric_system::standard); + break; + case 'x': + handler.on_loc_date(numeric_system::standard); + break; + case 'X': + handler.on_loc_time(numeric_system::standard); + break; + case 'D': + handler.on_us_date(); + break; + case 'F': + handler.on_iso_date(); + break; + case 'r': + handler.on_12_hour_time(); + break; + case 'R': + handler.on_24_hour_time(); + break; + case 'T': + handler.on_iso_time(); + break; + case 'p': + handler.on_am_pm(); + break; + case 'Q': + handler.on_duration_value(); + break; + case 'q': + handler.on_duration_unit(); + break; + case 'z': + handler.on_utc_offset(); + break; + case 'Z': + handler.on_tz_name(); + break; + // Alternative representation: + case 'E': { + if (ptr == end) FMT_THROW(format_error("invalid format")); + c = *ptr++; + switch (c) { + case 'c': + handler.on_datetime(numeric_system::alternative); + break; + case 'x': + handler.on_loc_date(numeric_system::alternative); + break; + case 'X': + handler.on_loc_time(numeric_system::alternative); + break; + default: + FMT_THROW(format_error("invalid format")); + } + break; + } + case 'O': + if (ptr == end) FMT_THROW(format_error("invalid format")); + c = *ptr++; + switch (c) { + case 'w': + handler.on_dec0_weekday(numeric_system::alternative); + break; + case 'u': + handler.on_dec1_weekday(numeric_system::alternative); + break; + case 'H': + handler.on_24_hour(numeric_system::alternative); + break; + case 'I': + handler.on_12_hour(numeric_system::alternative); + break; + case 'M': + handler.on_minute(numeric_system::alternative); + break; + case 'S': + handler.on_second(numeric_system::alternative); + break; + default: + FMT_THROW(format_error("invalid format")); + } + break; + default: + FMT_THROW(format_error("invalid format")); + } + begin = ptr; + } + if (begin != ptr) handler.on_text(begin, ptr); + return ptr; +} + +struct chrono_format_checker { + FMT_NORETURN void report_no_date() { FMT_THROW(format_error("no date")); } + + template <typename Char> void on_text(const Char*, const Char*) {} + FMT_NORETURN void on_abbr_weekday() { report_no_date(); } + FMT_NORETURN void on_full_weekday() { report_no_date(); } + FMT_NORETURN void on_dec0_weekday(numeric_system) { report_no_date(); } + FMT_NORETURN void on_dec1_weekday(numeric_system) { report_no_date(); } + FMT_NORETURN void on_abbr_month() { report_no_date(); } + FMT_NORETURN void on_full_month() { report_no_date(); } + void on_24_hour(numeric_system) {} + void on_12_hour(numeric_system) {} + void on_minute(numeric_system) {} + void on_second(numeric_system) {} + FMT_NORETURN void on_datetime(numeric_system) { report_no_date(); } + FMT_NORETURN void on_loc_date(numeric_system) { report_no_date(); } + FMT_NORETURN void on_loc_time(numeric_system) { report_no_date(); } + FMT_NORETURN void on_us_date() { report_no_date(); } + FMT_NORETURN void on_iso_date() { report_no_date(); } + void on_12_hour_time() {} + void on_24_hour_time() {} + void on_iso_time() {} + void on_am_pm() {} + void on_duration_value() {} + void on_duration_unit() {} + FMT_NORETURN void on_utc_offset() { report_no_date(); } + FMT_NORETURN void on_tz_name() { report_no_date(); } +}; + +template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)> +inline bool isnan(T) { + return false; +} +template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)> +inline bool isnan(T value) { + return std::isnan(value); +} + +template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)> +inline bool isfinite(T) { + return true; +} +template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)> +inline bool isfinite(T value) { + return std::isfinite(value); +} + +// Converts value to int and checks that it's in the range [0, upper). +template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)> +inline int to_nonnegative_int(T value, int upper) { + FMT_ASSERT(value >= 0 && value <= upper, "invalid value"); + (void)upper; + return static_cast<int>(value); +} +template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)> +inline int to_nonnegative_int(T value, int upper) { + FMT_ASSERT( + std::isnan(value) || (value >= 0 && value <= static_cast<T>(upper)), + "invalid value"); + (void)upper; + return static_cast<int>(value); +} + +template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)> +inline T mod(T x, int y) { + return x % static_cast<T>(y); +} +template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)> +inline T mod(T x, int y) { + return std::fmod(x, static_cast<T>(y)); +} + +// If T is an integral type, maps T to its unsigned counterpart, otherwise +// leaves it unchanged (unlike std::make_unsigned). +template <typename T, bool INTEGRAL = std::is_integral<T>::value> +struct make_unsigned_or_unchanged { + using type = T; +}; + +template <typename T> struct make_unsigned_or_unchanged<T, true> { + using type = typename std::make_unsigned<T>::type; +}; + +#if FMT_SAFE_DURATION_CAST +// throwing version of safe_duration_cast +template <typename To, typename FromRep, typename FromPeriod> +To fmt_safe_duration_cast(std::chrono::duration<FromRep, FromPeriod> from) { + int ec; + To to = safe_duration_cast::safe_duration_cast<To>(from, ec); + if (ec) FMT_THROW(format_error("cannot format duration")); + return to; +} +#endif + +template <typename Rep, typename Period, + FMT_ENABLE_IF(std::is_integral<Rep>::value)> +inline std::chrono::duration<Rep, std::milli> get_milliseconds( + std::chrono::duration<Rep, Period> d) { + // this may overflow and/or the result may not fit in the + // target type. +#if FMT_SAFE_DURATION_CAST + using CommonSecondsType = + typename std::common_type<decltype(d), std::chrono::seconds>::type; + const auto d_as_common = fmt_safe_duration_cast<CommonSecondsType>(d); + const auto d_as_whole_seconds = + fmt_safe_duration_cast<std::chrono::seconds>(d_as_common); + // this conversion should be nonproblematic + const auto diff = d_as_common - d_as_whole_seconds; + const auto ms = + fmt_safe_duration_cast<std::chrono::duration<Rep, std::milli>>(diff); + return ms; +#else + auto s = std::chrono::duration_cast<std::chrono::seconds>(d); + return std::chrono::duration_cast<std::chrono::milliseconds>(d - s); +#endif +} + +template <typename Rep, typename Period, + FMT_ENABLE_IF(std::is_floating_point<Rep>::value)> +inline std::chrono::duration<Rep, std::milli> get_milliseconds( + std::chrono::duration<Rep, Period> d) { + using common_type = typename std::common_type<Rep, std::intmax_t>::type; + auto ms = mod(d.count() * static_cast<common_type>(Period::num) / + static_cast<common_type>(Period::den) * 1000, + 1000); + return std::chrono::duration<Rep, std::milli>(static_cast<Rep>(ms)); +} + +template <typename Char, typename Rep, typename OutputIt> +OutputIt format_duration_value(OutputIt out, Rep val, int precision) { + const Char pr_f[] = {'{', ':', '.', '{', '}', 'f', '}', 0}; + if (precision >= 0) return format_to(out, pr_f, val, precision); + const Char fp_f[] = {'{', ':', 'g', '}', 0}; + const Char format[] = {'{', '}', 0}; + return format_to(out, std::is_floating_point<Rep>::value ? fp_f : format, + val); +} +template <typename Char, typename OutputIt> +OutputIt copy_unit(string_view unit, OutputIt out, Char) { + return std::copy(unit.begin(), unit.end(), out); +} + +template <typename OutputIt> +OutputIt copy_unit(string_view unit, OutputIt out, wchar_t) { + // This works when wchar_t is UTF-32 because units only contain characters + // that have the same representation in UTF-16 and UTF-32. + utf8_to_utf16 u(unit); + return std::copy(u.c_str(), u.c_str() + u.size(), out); +} + +template <typename Char, typename Period, typename OutputIt> +OutputIt format_duration_unit(OutputIt out) { + if (const char* unit = get_units<Period>()) + return copy_unit(string_view(unit), out, Char()); + const Char num_f[] = {'[', '{', '}', ']', 's', 0}; + if (const_check(Period::den == 1)) return format_to(out, num_f, Period::num); + const Char num_def_f[] = {'[', '{', '}', '/', '{', '}', ']', 's', 0}; + return format_to(out, num_def_f, Period::num, Period::den); +} + +template <typename FormatContext, typename OutputIt, typename Rep, + typename Period> +struct chrono_formatter { + FormatContext& context; + OutputIt out; + int precision; + // rep is unsigned to avoid overflow. + using rep = + conditional_t<std::is_integral<Rep>::value && sizeof(Rep) < sizeof(int), + unsigned, typename make_unsigned_or_unchanged<Rep>::type>; + rep val; + using seconds = std::chrono::duration<rep>; + seconds s; + using milliseconds = std::chrono::duration<rep, std::milli>; + bool negative; + + using char_type = typename FormatContext::char_type; + + explicit chrono_formatter(FormatContext& ctx, OutputIt o, + std::chrono::duration<Rep, Period> d) + : context(ctx), + out(o), + val(static_cast<rep>(d.count())), + negative(false) { + if (d.count() < 0) { + val = 0 - val; + negative = true; + } + + // this may overflow and/or the result may not fit in the + // target type. +#if FMT_SAFE_DURATION_CAST + // might need checked conversion (rep!=Rep) + auto tmpval = std::chrono::duration<rep, Period>(val); + s = fmt_safe_duration_cast<seconds>(tmpval); +#else + s = std::chrono::duration_cast<seconds>( + std::chrono::duration<rep, Period>(val)); +#endif + } + + // returns true if nan or inf, writes to out. + bool handle_nan_inf() { + if (isfinite(val)) { + return false; + } + if (isnan(val)) { + write_nan(); + return true; + } + // must be +-inf + if (val > 0) { + write_pinf(); + } else { + write_ninf(); + } + return true; + } + + Rep hour() const { return static_cast<Rep>(mod((s.count() / 3600), 24)); } + + Rep hour12() const { + Rep hour = static_cast<Rep>(mod((s.count() / 3600), 12)); + return hour <= 0 ? 12 : hour; + } + + Rep minute() const { return static_cast<Rep>(mod((s.count() / 60), 60)); } + Rep second() const { return static_cast<Rep>(mod(s.count(), 60)); } + + std::tm time() const { + auto time = std::tm(); + time.tm_hour = to_nonnegative_int(hour(), 24); + time.tm_min = to_nonnegative_int(minute(), 60); + time.tm_sec = to_nonnegative_int(second(), 60); + return time; + } + + void write_sign() { + if (negative) { + *out++ = '-'; + negative = false; + } + } + + void write(Rep value, int width) { + write_sign(); + if (isnan(value)) return write_nan(); + uint32_or_64_or_128_t<int> n = + to_unsigned(to_nonnegative_int(value, max_value<int>())); + int num_digits = detail::count_digits(n); + if (width > num_digits) out = std::fill_n(out, width - num_digits, '0'); + out = format_decimal<char_type>(out, n, num_digits).end; + } + + void write_nan() { std::copy_n("nan", 3, out); } + void write_pinf() { std::copy_n("inf", 3, out); } + void write_ninf() { std::copy_n("-inf", 4, out); } + + void format_localized(const tm& time, char format, char modifier = 0) { + if (isnan(val)) return write_nan(); + auto locale = context.locale().template get<std::locale>(); + auto& facet = std::use_facet<std::time_put<char_type>>(locale); + std::basic_ostringstream<char_type> os; + os.imbue(locale); + facet.put(os, os, ' ', &time, format, modifier); + auto str = os.str(); + std::copy(str.begin(), str.end(), out); + } + + void on_text(const char_type* begin, const char_type* end) { + std::copy(begin, end, out); + } + + // These are not implemented because durations don't have date information. + void on_abbr_weekday() {} + void on_full_weekday() {} + void on_dec0_weekday(numeric_system) {} + void on_dec1_weekday(numeric_system) {} + void on_abbr_month() {} + void on_full_month() {} + void on_datetime(numeric_system) {} + void on_loc_date(numeric_system) {} + void on_loc_time(numeric_system) {} + void on_us_date() {} + void on_iso_date() {} + void on_utc_offset() {} + void on_tz_name() {} + + void on_24_hour(numeric_system ns) { + if (handle_nan_inf()) return; + + if (ns == numeric_system::standard) return write(hour(), 2); + auto time = tm(); + time.tm_hour = to_nonnegative_int(hour(), 24); + format_localized(time, 'H', 'O'); + } + + void on_12_hour(numeric_system ns) { + if (handle_nan_inf()) return; + + if (ns == numeric_system::standard) return write(hour12(), 2); + auto time = tm(); + time.tm_hour = to_nonnegative_int(hour12(), 12); + format_localized(time, 'I', 'O'); + } + + void on_minute(numeric_system ns) { + if (handle_nan_inf()) return; + + if (ns == numeric_system::standard) return write(minute(), 2); + auto time = tm(); + time.tm_min = to_nonnegative_int(minute(), 60); + format_localized(time, 'M', 'O'); + } + + void on_second(numeric_system ns) { + if (handle_nan_inf()) return; + + if (ns == numeric_system::standard) { + write(second(), 2); +#if FMT_SAFE_DURATION_CAST + // convert rep->Rep + using duration_rep = std::chrono::duration<rep, Period>; + using duration_Rep = std::chrono::duration<Rep, Period>; + auto tmpval = fmt_safe_duration_cast<duration_Rep>(duration_rep{val}); +#else + auto tmpval = std::chrono::duration<Rep, Period>(val); +#endif + auto ms = get_milliseconds(tmpval); + if (ms != std::chrono::milliseconds(0)) { + *out++ = '.'; + write(ms.count(), 3); + } + return; + } + auto time = tm(); + time.tm_sec = to_nonnegative_int(second(), 60); + format_localized(time, 'S', 'O'); + } + + void on_12_hour_time() { + if (handle_nan_inf()) return; + format_localized(time(), 'r'); + } + + void on_24_hour_time() { + if (handle_nan_inf()) { + *out++ = ':'; + handle_nan_inf(); + return; + } + + write(hour(), 2); + *out++ = ':'; + write(minute(), 2); + } + + void on_iso_time() { + on_24_hour_time(); + *out++ = ':'; + if (handle_nan_inf()) return; + write(second(), 2); + } + + void on_am_pm() { + if (handle_nan_inf()) return; + format_localized(time(), 'p'); + } + + void on_duration_value() { + if (handle_nan_inf()) return; + write_sign(); + out = format_duration_value<char_type>(out, val, precision); + } + + void on_duration_unit() { + out = format_duration_unit<char_type, Period>(out); + } +}; +} // namespace detail + +template <typename Rep, typename Period, typename Char> +struct formatter<std::chrono::duration<Rep, Period>, Char> { + private: + basic_format_specs<Char> specs; + int precision; + using arg_ref_type = detail::arg_ref<Char>; + arg_ref_type width_ref; + arg_ref_type precision_ref; + mutable basic_string_view<Char> format_str; + using duration = std::chrono::duration<Rep, Period>; + + struct spec_handler { + formatter& f; + basic_format_parse_context<Char>& context; + basic_string_view<Char> format_str; + + template <typename Id> FMT_CONSTEXPR arg_ref_type make_arg_ref(Id arg_id) { + context.check_arg_id(arg_id); + return arg_ref_type(arg_id); + } + + FMT_CONSTEXPR arg_ref_type make_arg_ref(basic_string_view<Char> arg_id) { + context.check_arg_id(arg_id); + return arg_ref_type(arg_id); + } + + FMT_CONSTEXPR arg_ref_type make_arg_ref(detail::auto_id) { + return arg_ref_type(context.next_arg_id()); + } + + void on_error(const char* msg) { FMT_THROW(format_error(msg)); } + void on_fill(basic_string_view<Char> fill) { f.specs.fill = fill; } + void on_align(align_t align) { f.specs.align = align; } + void on_width(int width) { f.specs.width = width; } + void on_precision(int _precision) { f.precision = _precision; } + void end_precision() {} + + template <typename Id> void on_dynamic_width(Id arg_id) { + f.width_ref = make_arg_ref(arg_id); + } + + template <typename Id> void on_dynamic_precision(Id arg_id) { + f.precision_ref = make_arg_ref(arg_id); + } + }; + + using iterator = typename basic_format_parse_context<Char>::iterator; + struct parse_range { + iterator begin; + iterator end; + }; + + FMT_CONSTEXPR parse_range do_parse(basic_format_parse_context<Char>& ctx) { + auto begin = ctx.begin(), end = ctx.end(); + if (begin == end || *begin == '}') return {begin, begin}; + spec_handler handler{*this, ctx, format_str}; + begin = detail::parse_align(begin, end, handler); + if (begin == end) return {begin, begin}; + begin = detail::parse_width(begin, end, handler); + if (begin == end) return {begin, begin}; + if (*begin == '.') { + if (std::is_floating_point<Rep>::value) + begin = detail::parse_precision(begin, end, handler); + else + handler.on_error("precision not allowed for this argument type"); + } + end = parse_chrono_format(begin, end, detail::chrono_format_checker()); + return {begin, end}; + } + + public: + formatter() : precision(-1) {} + + FMT_CONSTEXPR auto parse(basic_format_parse_context<Char>& ctx) + -> decltype(ctx.begin()) { + auto range = do_parse(ctx); + format_str = basic_string_view<Char>( + &*range.begin, detail::to_unsigned(range.end - range.begin)); + return range.end; + } + + template <typename FormatContext> + auto format(const duration& d, FormatContext& ctx) -> decltype(ctx.out()) { + auto begin = format_str.begin(), end = format_str.end(); + // As a possible future optimization, we could avoid extra copying if width + // is not specified. + basic_memory_buffer<Char> buf; + auto out = std::back_inserter(buf); + detail::handle_dynamic_spec<detail::width_checker>(specs.width, width_ref, + ctx); + detail::handle_dynamic_spec<detail::precision_checker>(precision, + precision_ref, ctx); + if (begin == end || *begin == '}') { + out = detail::format_duration_value<Char>(out, d.count(), precision); + detail::format_duration_unit<Char, Period>(out); + } else { + detail::chrono_formatter<FormatContext, decltype(out), Rep, Period> f( + ctx, out, d); + f.precision = precision; + parse_chrono_format(begin, end, f); + } + return detail::write( + ctx.out(), basic_string_view<Char>(buf.data(), buf.size()), specs); + } +}; + +FMT_END_NAMESPACE + +#endif // FMT_CHRONO_H_ diff --git a/contrib/libs/fmt/include/fmt/color.h b/contrib/libs/fmt/include/fmt/color.h new file mode 100644 index 0000000000..94e3419d1d --- /dev/null +++ b/contrib/libs/fmt/include/fmt/color.h @@ -0,0 +1,603 @@ +// Formatting library for C++ - color support +// +// Copyright (c) 2018 - present, Victor Zverovich and fmt contributors +// All rights reserved. +// +// For the license information refer to format.h. + +#ifndef FMT_COLOR_H_ +#define FMT_COLOR_H_ + +#include "format.h" + +FMT_BEGIN_NAMESPACE + +enum class color : uint32_t { + alice_blue = 0xF0F8FF, // rgb(240,248,255) + antique_white = 0xFAEBD7, // rgb(250,235,215) + aqua = 0x00FFFF, // rgb(0,255,255) + aquamarine = 0x7FFFD4, // rgb(127,255,212) + azure = 0xF0FFFF, // rgb(240,255,255) + beige = 0xF5F5DC, // rgb(245,245,220) + bisque = 0xFFE4C4, // rgb(255,228,196) + black = 0x000000, // rgb(0,0,0) + blanched_almond = 0xFFEBCD, // rgb(255,235,205) + blue = 0x0000FF, // rgb(0,0,255) + blue_violet = 0x8A2BE2, // rgb(138,43,226) + brown = 0xA52A2A, // rgb(165,42,42) + burly_wood = 0xDEB887, // rgb(222,184,135) + cadet_blue = 0x5F9EA0, // rgb(95,158,160) + chartreuse = 0x7FFF00, // rgb(127,255,0) + chocolate = 0xD2691E, // rgb(210,105,30) + coral = 0xFF7F50, // rgb(255,127,80) + cornflower_blue = 0x6495ED, // rgb(100,149,237) + cornsilk = 0xFFF8DC, // rgb(255,248,220) + crimson = 0xDC143C, // rgb(220,20,60) + cyan = 0x00FFFF, // rgb(0,255,255) + dark_blue = 0x00008B, // rgb(0,0,139) + dark_cyan = 0x008B8B, // rgb(0,139,139) + dark_golden_rod = 0xB8860B, // rgb(184,134,11) + dark_gray = 0xA9A9A9, // rgb(169,169,169) + dark_green = 0x006400, // rgb(0,100,0) + dark_khaki = 0xBDB76B, // rgb(189,183,107) + dark_magenta = 0x8B008B, // rgb(139,0,139) + dark_olive_green = 0x556B2F, // rgb(85,107,47) + dark_orange = 0xFF8C00, // rgb(255,140,0) + dark_orchid = 0x9932CC, // rgb(153,50,204) + dark_red = 0x8B0000, // rgb(139,0,0) + dark_salmon = 0xE9967A, // rgb(233,150,122) + dark_sea_green = 0x8FBC8F, // rgb(143,188,143) + dark_slate_blue = 0x483D8B, // rgb(72,61,139) + dark_slate_gray = 0x2F4F4F, // rgb(47,79,79) + dark_turquoise = 0x00CED1, // rgb(0,206,209) + dark_violet = 0x9400D3, // rgb(148,0,211) + deep_pink = 0xFF1493, // rgb(255,20,147) + deep_sky_blue = 0x00BFFF, // rgb(0,191,255) + dim_gray = 0x696969, // rgb(105,105,105) + dodger_blue = 0x1E90FF, // rgb(30,144,255) + fire_brick = 0xB22222, // rgb(178,34,34) + floral_white = 0xFFFAF0, // rgb(255,250,240) + forest_green = 0x228B22, // rgb(34,139,34) + fuchsia = 0xFF00FF, // rgb(255,0,255) + gainsboro = 0xDCDCDC, // rgb(220,220,220) + ghost_white = 0xF8F8FF, // rgb(248,248,255) + gold = 0xFFD700, // rgb(255,215,0) + golden_rod = 0xDAA520, // rgb(218,165,32) + gray = 0x808080, // rgb(128,128,128) + green = 0x008000, // rgb(0,128,0) + green_yellow = 0xADFF2F, // rgb(173,255,47) + honey_dew = 0xF0FFF0, // rgb(240,255,240) + hot_pink = 0xFF69B4, // rgb(255,105,180) + indian_red = 0xCD5C5C, // rgb(205,92,92) + indigo = 0x4B0082, // rgb(75,0,130) + ivory = 0xFFFFF0, // rgb(255,255,240) + khaki = 0xF0E68C, // rgb(240,230,140) + lavender = 0xE6E6FA, // rgb(230,230,250) + lavender_blush = 0xFFF0F5, // rgb(255,240,245) + lawn_green = 0x7CFC00, // rgb(124,252,0) + lemon_chiffon = 0xFFFACD, // rgb(255,250,205) + light_blue = 0xADD8E6, // rgb(173,216,230) + light_coral = 0xF08080, // rgb(240,128,128) + light_cyan = 0xE0FFFF, // rgb(224,255,255) + light_golden_rod_yellow = 0xFAFAD2, // rgb(250,250,210) + light_gray = 0xD3D3D3, // rgb(211,211,211) + light_green = 0x90EE90, // rgb(144,238,144) + light_pink = 0xFFB6C1, // rgb(255,182,193) + light_salmon = 0xFFA07A, // rgb(255,160,122) + light_sea_green = 0x20B2AA, // rgb(32,178,170) + light_sky_blue = 0x87CEFA, // rgb(135,206,250) + light_slate_gray = 0x778899, // rgb(119,136,153) + light_steel_blue = 0xB0C4DE, // rgb(176,196,222) + light_yellow = 0xFFFFE0, // rgb(255,255,224) + lime = 0x00FF00, // rgb(0,255,0) + lime_green = 0x32CD32, // rgb(50,205,50) + linen = 0xFAF0E6, // rgb(250,240,230) + magenta = 0xFF00FF, // rgb(255,0,255) + maroon = 0x800000, // rgb(128,0,0) + medium_aquamarine = 0x66CDAA, // rgb(102,205,170) + medium_blue = 0x0000CD, // rgb(0,0,205) + medium_orchid = 0xBA55D3, // rgb(186,85,211) + medium_purple = 0x9370DB, // rgb(147,112,219) + medium_sea_green = 0x3CB371, // rgb(60,179,113) + medium_slate_blue = 0x7B68EE, // rgb(123,104,238) + medium_spring_green = 0x00FA9A, // rgb(0,250,154) + medium_turquoise = 0x48D1CC, // rgb(72,209,204) + medium_violet_red = 0xC71585, // rgb(199,21,133) + midnight_blue = 0x191970, // rgb(25,25,112) + mint_cream = 0xF5FFFA, // rgb(245,255,250) + misty_rose = 0xFFE4E1, // rgb(255,228,225) + moccasin = 0xFFE4B5, // rgb(255,228,181) + navajo_white = 0xFFDEAD, // rgb(255,222,173) + navy = 0x000080, // rgb(0,0,128) + old_lace = 0xFDF5E6, // rgb(253,245,230) + olive = 0x808000, // rgb(128,128,0) + olive_drab = 0x6B8E23, // rgb(107,142,35) + orange = 0xFFA500, // rgb(255,165,0) + orange_red = 0xFF4500, // rgb(255,69,0) + orchid = 0xDA70D6, // rgb(218,112,214) + pale_golden_rod = 0xEEE8AA, // rgb(238,232,170) + pale_green = 0x98FB98, // rgb(152,251,152) + pale_turquoise = 0xAFEEEE, // rgb(175,238,238) + pale_violet_red = 0xDB7093, // rgb(219,112,147) + papaya_whip = 0xFFEFD5, // rgb(255,239,213) + peach_puff = 0xFFDAB9, // rgb(255,218,185) + peru = 0xCD853F, // rgb(205,133,63) + pink = 0xFFC0CB, // rgb(255,192,203) + plum = 0xDDA0DD, // rgb(221,160,221) + powder_blue = 0xB0E0E6, // rgb(176,224,230) + purple = 0x800080, // rgb(128,0,128) + rebecca_purple = 0x663399, // rgb(102,51,153) + red = 0xFF0000, // rgb(255,0,0) + rosy_brown = 0xBC8F8F, // rgb(188,143,143) + royal_blue = 0x4169E1, // rgb(65,105,225) + saddle_brown = 0x8B4513, // rgb(139,69,19) + salmon = 0xFA8072, // rgb(250,128,114) + sandy_brown = 0xF4A460, // rgb(244,164,96) + sea_green = 0x2E8B57, // rgb(46,139,87) + sea_shell = 0xFFF5EE, // rgb(255,245,238) + sienna = 0xA0522D, // rgb(160,82,45) + silver = 0xC0C0C0, // rgb(192,192,192) + sky_blue = 0x87CEEB, // rgb(135,206,235) + slate_blue = 0x6A5ACD, // rgb(106,90,205) + slate_gray = 0x708090, // rgb(112,128,144) + snow = 0xFFFAFA, // rgb(255,250,250) + spring_green = 0x00FF7F, // rgb(0,255,127) + steel_blue = 0x4682B4, // rgb(70,130,180) + tan = 0xD2B48C, // rgb(210,180,140) + teal = 0x008080, // rgb(0,128,128) + thistle = 0xD8BFD8, // rgb(216,191,216) + tomato = 0xFF6347, // rgb(255,99,71) + turquoise = 0x40E0D0, // rgb(64,224,208) + violet = 0xEE82EE, // rgb(238,130,238) + wheat = 0xF5DEB3, // rgb(245,222,179) + white = 0xFFFFFF, // rgb(255,255,255) + white_smoke = 0xF5F5F5, // rgb(245,245,245) + yellow = 0xFFFF00, // rgb(255,255,0) + yellow_green = 0x9ACD32 // rgb(154,205,50) +}; // enum class color + +enum class terminal_color : uint8_t { + black = 30, + red, + green, + yellow, + blue, + magenta, + cyan, + white, + bright_black = 90, + bright_red, + bright_green, + bright_yellow, + bright_blue, + bright_magenta, + bright_cyan, + bright_white +}; + +enum class emphasis : uint8_t { + bold = 1, + italic = 1 << 1, + underline = 1 << 2, + strikethrough = 1 << 3 +}; + +// rgb is a struct for red, green and blue colors. +// Using the name "rgb" makes some editors show the color in a tooltip. +struct rgb { + FMT_CONSTEXPR rgb() : r(0), g(0), b(0) {} + FMT_CONSTEXPR rgb(uint8_t r_, uint8_t g_, uint8_t b_) : r(r_), g(g_), b(b_) {} + FMT_CONSTEXPR rgb(uint32_t hex) + : r((hex >> 16) & 0xFF), g((hex >> 8) & 0xFF), b(hex & 0xFF) {} + FMT_CONSTEXPR rgb(color hex) + : r((uint32_t(hex) >> 16) & 0xFF), + g((uint32_t(hex) >> 8) & 0xFF), + b(uint32_t(hex) & 0xFF) {} + uint8_t r; + uint8_t g; + uint8_t b; +}; + +namespace detail { + +// color is a struct of either a rgb color or a terminal color. +struct color_type { + FMT_CONSTEXPR color_type() FMT_NOEXCEPT : is_rgb(), value{} {} + FMT_CONSTEXPR color_type(color rgb_color) FMT_NOEXCEPT : is_rgb(true), + value{} { + value.rgb_color = static_cast<uint32_t>(rgb_color); + } + FMT_CONSTEXPR color_type(rgb rgb_color) FMT_NOEXCEPT : is_rgb(true), value{} { + value.rgb_color = (static_cast<uint32_t>(rgb_color.r) << 16) | + (static_cast<uint32_t>(rgb_color.g) << 8) | rgb_color.b; + } + FMT_CONSTEXPR color_type(terminal_color term_color) FMT_NOEXCEPT : is_rgb(), + value{} { + value.term_color = static_cast<uint8_t>(term_color); + } + bool is_rgb; + union color_union { + uint8_t term_color; + uint32_t rgb_color; + } value; +}; +} // namespace detail + +// Experimental text formatting support. +class text_style { + public: + FMT_CONSTEXPR text_style(emphasis em = emphasis()) FMT_NOEXCEPT + : set_foreground_color(), + set_background_color(), + ems(em) {} + + FMT_CONSTEXPR text_style& operator|=(const text_style& rhs) { + if (!set_foreground_color) { + set_foreground_color = rhs.set_foreground_color; + foreground_color = rhs.foreground_color; + } else if (rhs.set_foreground_color) { + if (!foreground_color.is_rgb || !rhs.foreground_color.is_rgb) + FMT_THROW(format_error("can't OR a terminal color")); + foreground_color.value.rgb_color |= rhs.foreground_color.value.rgb_color; + } + + if (!set_background_color) { + set_background_color = rhs.set_background_color; + background_color = rhs.background_color; + } else if (rhs.set_background_color) { + if (!background_color.is_rgb || !rhs.background_color.is_rgb) + FMT_THROW(format_error("can't OR a terminal color")); + background_color.value.rgb_color |= rhs.background_color.value.rgb_color; + } + + ems = static_cast<emphasis>(static_cast<uint8_t>(ems) | + static_cast<uint8_t>(rhs.ems)); + return *this; + } + + friend FMT_CONSTEXPR text_style operator|(text_style lhs, + const text_style& rhs) { + return lhs |= rhs; + } + + FMT_CONSTEXPR text_style& operator&=(const text_style& rhs) { + if (!set_foreground_color) { + set_foreground_color = rhs.set_foreground_color; + foreground_color = rhs.foreground_color; + } else if (rhs.set_foreground_color) { + if (!foreground_color.is_rgb || !rhs.foreground_color.is_rgb) + FMT_THROW(format_error("can't AND a terminal color")); + foreground_color.value.rgb_color &= rhs.foreground_color.value.rgb_color; + } + + if (!set_background_color) { + set_background_color = rhs.set_background_color; + background_color = rhs.background_color; + } else if (rhs.set_background_color) { + if (!background_color.is_rgb || !rhs.background_color.is_rgb) + FMT_THROW(format_error("can't AND a terminal color")); + background_color.value.rgb_color &= rhs.background_color.value.rgb_color; + } + + ems = static_cast<emphasis>(static_cast<uint8_t>(ems) & + static_cast<uint8_t>(rhs.ems)); + return *this; + } + + friend FMT_CONSTEXPR text_style operator&(text_style lhs, + const text_style& rhs) { + return lhs &= rhs; + } + + FMT_CONSTEXPR bool has_foreground() const FMT_NOEXCEPT { + return set_foreground_color; + } + FMT_CONSTEXPR bool has_background() const FMT_NOEXCEPT { + return set_background_color; + } + FMT_CONSTEXPR bool has_emphasis() const FMT_NOEXCEPT { + return static_cast<uint8_t>(ems) != 0; + } + FMT_CONSTEXPR detail::color_type get_foreground() const FMT_NOEXCEPT { + FMT_ASSERT(has_foreground(), "no foreground specified for this style"); + return foreground_color; + } + FMT_CONSTEXPR detail::color_type get_background() const FMT_NOEXCEPT { + FMT_ASSERT(has_background(), "no background specified for this style"); + return background_color; + } + FMT_CONSTEXPR emphasis get_emphasis() const FMT_NOEXCEPT { + FMT_ASSERT(has_emphasis(), "no emphasis specified for this style"); + return ems; + } + + private: + FMT_CONSTEXPR text_style(bool is_foreground, + detail::color_type text_color) FMT_NOEXCEPT + : set_foreground_color(), + set_background_color(), + ems() { + if (is_foreground) { + foreground_color = text_color; + set_foreground_color = true; + } else { + background_color = text_color; + set_background_color = true; + } + } + + friend FMT_CONSTEXPR_DECL text_style fg(detail::color_type foreground) + FMT_NOEXCEPT; + friend FMT_CONSTEXPR_DECL text_style bg(detail::color_type background) + FMT_NOEXCEPT; + + detail::color_type foreground_color; + detail::color_type background_color; + bool set_foreground_color; + bool set_background_color; + emphasis ems; +}; + +FMT_CONSTEXPR text_style fg(detail::color_type foreground) FMT_NOEXCEPT { + return text_style(/*is_foreground=*/true, foreground); +} + +FMT_CONSTEXPR text_style bg(detail::color_type background) FMT_NOEXCEPT { + return text_style(/*is_foreground=*/false, background); +} + +FMT_CONSTEXPR text_style operator|(emphasis lhs, emphasis rhs) FMT_NOEXCEPT { + return text_style(lhs) | rhs; +} + +namespace detail { + +template <typename Char> struct ansi_color_escape { + FMT_CONSTEXPR ansi_color_escape(detail::color_type text_color, + const char* esc) FMT_NOEXCEPT { + // If we have a terminal color, we need to output another escape code + // sequence. + if (!text_color.is_rgb) { + bool is_background = esc == detail::data::background_color; + uint32_t value = text_color.value.term_color; + // Background ASCII codes are the same as the foreground ones but with + // 10 more. + if (is_background) value += 10u; + + size_t index = 0; + buffer[index++] = static_cast<Char>('\x1b'); + buffer[index++] = static_cast<Char>('['); + + if (value >= 100u) { + buffer[index++] = static_cast<Char>('1'); + value %= 100u; + } + buffer[index++] = static_cast<Char>('0' + value / 10u); + buffer[index++] = static_cast<Char>('0' + value % 10u); + + buffer[index++] = static_cast<Char>('m'); + buffer[index++] = static_cast<Char>('\0'); + return; + } + + for (int i = 0; i < 7; i++) { + buffer[i] = static_cast<Char>(esc[i]); + } + rgb color(text_color.value.rgb_color); + to_esc(color.r, buffer + 7, ';'); + to_esc(color.g, buffer + 11, ';'); + to_esc(color.b, buffer + 15, 'm'); + buffer[19] = static_cast<Char>(0); + } + FMT_CONSTEXPR ansi_color_escape(emphasis em) FMT_NOEXCEPT { + uint8_t em_codes[4] = {}; + uint8_t em_bits = static_cast<uint8_t>(em); + if (em_bits & static_cast<uint8_t>(emphasis::bold)) em_codes[0] = 1; + if (em_bits & static_cast<uint8_t>(emphasis::italic)) em_codes[1] = 3; + if (em_bits & static_cast<uint8_t>(emphasis::underline)) em_codes[2] = 4; + if (em_bits & static_cast<uint8_t>(emphasis::strikethrough)) + em_codes[3] = 9; + + size_t index = 0; + for (int i = 0; i < 4; ++i) { + if (!em_codes[i]) continue; + buffer[index++] = static_cast<Char>('\x1b'); + buffer[index++] = static_cast<Char>('['); + buffer[index++] = static_cast<Char>('0' + em_codes[i]); + buffer[index++] = static_cast<Char>('m'); + } + buffer[index++] = static_cast<Char>(0); + } + FMT_CONSTEXPR operator const Char*() const FMT_NOEXCEPT { return buffer; } + + FMT_CONSTEXPR const Char* begin() const FMT_NOEXCEPT { return buffer; } + FMT_CONSTEXPR const Char* end() const FMT_NOEXCEPT { + return buffer + std::char_traits<Char>::length(buffer); + } + + private: + Char buffer[7u + 3u * 4u + 1u]; + + static FMT_CONSTEXPR void to_esc(uint8_t c, Char* out, + char delimiter) FMT_NOEXCEPT { + out[0] = static_cast<Char>('0' + c / 100); + out[1] = static_cast<Char>('0' + c / 10 % 10); + out[2] = static_cast<Char>('0' + c % 10); + out[3] = static_cast<Char>(delimiter); + } +}; + +template <typename Char> +FMT_CONSTEXPR ansi_color_escape<Char> make_foreground_color( + detail::color_type foreground) FMT_NOEXCEPT { + return ansi_color_escape<Char>(foreground, detail::data::foreground_color); +} + +template <typename Char> +FMT_CONSTEXPR ansi_color_escape<Char> make_background_color( + detail::color_type background) FMT_NOEXCEPT { + return ansi_color_escape<Char>(background, detail::data::background_color); +} + +template <typename Char> +FMT_CONSTEXPR ansi_color_escape<Char> make_emphasis(emphasis em) FMT_NOEXCEPT { + return ansi_color_escape<Char>(em); +} + +template <typename Char> +inline void fputs(const Char* chars, FILE* stream) FMT_NOEXCEPT { + std::fputs(chars, stream); +} + +template <> +inline void fputs<wchar_t>(const wchar_t* chars, FILE* stream) FMT_NOEXCEPT { + std::fputws(chars, stream); +} + +template <typename Char> inline void reset_color(FILE* stream) FMT_NOEXCEPT { + fputs(detail::data::reset_color, stream); +} + +template <> inline void reset_color<wchar_t>(FILE* stream) FMT_NOEXCEPT { + fputs(detail::data::wreset_color, stream); +} + +template <typename Char> +inline void reset_color(buffer<Char>& buffer) FMT_NOEXCEPT { + const char* begin = data::reset_color; + const char* end = begin + sizeof(data::reset_color) - 1; + buffer.append(begin, end); +} + +template <typename Char> +void vformat_to(buffer<Char>& buf, const text_style& ts, + basic_string_view<Char> format_str, + basic_format_args<buffer_context<type_identity_t<Char>>> args) { + bool has_style = false; + if (ts.has_emphasis()) { + has_style = true; + auto emphasis = detail::make_emphasis<Char>(ts.get_emphasis()); + buf.append(emphasis.begin(), emphasis.end()); + } + if (ts.has_foreground()) { + has_style = true; + auto foreground = detail::make_foreground_color<Char>(ts.get_foreground()); + buf.append(foreground.begin(), foreground.end()); + } + if (ts.has_background()) { + has_style = true; + auto background = detail::make_background_color<Char>(ts.get_background()); + buf.append(background.begin(), background.end()); + } + detail::vformat_to(buf, format_str, args); + if (has_style) detail::reset_color<Char>(buf); +} +} // namespace detail + +template <typename S, typename Char = char_t<S>> +void vprint(std::FILE* f, const text_style& ts, const S& format, + basic_format_args<buffer_context<type_identity_t<Char>>> args) { + basic_memory_buffer<Char> buf; + detail::vformat_to(buf, ts, to_string_view(format), args); + buf.push_back(Char(0)); + detail::fputs(buf.data(), f); +} + +/** + \rst + Formats a string and prints it to the specified file stream using ANSI + escape sequences to specify text formatting. + + **Example**:: + + fmt::print(fmt::emphasis::bold | fg(fmt::color::red), + "Elapsed time: {0:.2f} seconds", 1.23); + \endrst + */ +template <typename S, typename... Args, + FMT_ENABLE_IF(detail::is_string<S>::value)> +void print(std::FILE* f, const text_style& ts, const S& format_str, + const Args&... args) { + vprint(f, ts, format_str, + fmt::make_args_checked<Args...>(format_str, args...)); +} + +/** + Formats a string and prints it to stdout using ANSI escape sequences to + specify text formatting. + Example: + fmt::print(fmt::emphasis::bold | fg(fmt::color::red), + "Elapsed time: {0:.2f} seconds", 1.23); + */ +template <typename S, typename... Args, + FMT_ENABLE_IF(detail::is_string<S>::value)> +void print(const text_style& ts, const S& format_str, const Args&... args) { + return print(stdout, ts, format_str, args...); +} + +template <typename S, typename Char = char_t<S>> +inline std::basic_string<Char> vformat( + const text_style& ts, const S& format_str, + basic_format_args<buffer_context<type_identity_t<Char>>> args) { + basic_memory_buffer<Char> buf; + detail::vformat_to(buf, ts, to_string_view(format_str), args); + return fmt::to_string(buf); +} + +/** + \rst + Formats arguments and returns the result as a string using ANSI + escape sequences to specify text formatting. + + **Example**:: + + #include <fmt/color.h> + std::string message = fmt::format(fmt::emphasis::bold | fg(fmt::color::red), + "The answer is {}", 42); + \endrst +*/ +template <typename S, typename... Args, typename Char = char_t<S>> +inline std::basic_string<Char> format(const text_style& ts, const S& format_str, + const Args&... args) { + return vformat(ts, to_string_view(format_str), + fmt::make_args_checked<Args...>(format_str, args...)); +} + +/** + Formats a string with the given text_style and writes the output to ``out``. + */ +template <typename OutputIt, typename Char, + FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value)> +OutputIt vformat_to( + OutputIt out, const text_style& ts, basic_string_view<Char> format_str, + basic_format_args<buffer_context<type_identity_t<Char>>> args) { + decltype(detail::get_buffer<Char>(out)) buf(detail::get_buffer_init(out)); + detail::vformat_to(buf, ts, format_str, args); + return detail::get_iterator(buf); +} + +/** + \rst + Formats arguments with the given text_style, writes the result to the output + iterator ``out`` and returns the iterator past the end of the output range. + + **Example**:: + + std::vector<char> out; + fmt::format_to(std::back_inserter(out), + fmt::emphasis::bold | fg(fmt::color::red), "{}", 42); + \endrst +*/ +template <typename OutputIt, typename S, typename... Args, + bool enable = detail::is_output_iterator<OutputIt, char_t<S>>::value&& + detail::is_string<S>::value> +inline auto format_to(OutputIt out, const text_style& ts, const S& format_str, + Args&&... args) -> + typename std::enable_if<enable, OutputIt>::type { + return vformat_to(out, ts, to_string_view(format_str), + fmt::make_args_checked<Args...>(format_str, args...)); +} + +FMT_END_NAMESPACE + +#endif // FMT_COLOR_H_ diff --git a/contrib/libs/fmt/include/fmt/compile.h b/contrib/libs/fmt/include/fmt/compile.h new file mode 100644 index 0000000000..3a33b02014 --- /dev/null +++ b/contrib/libs/fmt/include/fmt/compile.h @@ -0,0 +1,701 @@ +// Formatting library for C++ - experimental format string compilation +// +// Copyright (c) 2012 - present, Victor Zverovich and fmt contributors +// All rights reserved. +// +// For the license information refer to format.h. + +#ifndef FMT_COMPILE_H_ +#define FMT_COMPILE_H_ + +#include <vector> + +#include "format.h" + +FMT_BEGIN_NAMESPACE +namespace detail { + +// A compile-time string which is compiled into fast formatting code. +class compiled_string {}; + +template <typename S> +struct is_compiled_string : std::is_base_of<compiled_string, S> {}; + +/** + \rst + Converts a string literal *s* into a format string that will be parsed at + compile time and converted into efficient formatting code. Requires C++17 + ``constexpr if`` compiler support. + + **Example**:: + + // Converts 42 into std::string using the most efficient method and no + // runtime format string processing. + std::string s = fmt::format(FMT_COMPILE("{}"), 42); + \endrst + */ +#define FMT_COMPILE(s) FMT_STRING_IMPL(s, fmt::detail::compiled_string) + +template <typename T, typename... Tail> +const T& first(const T& value, const Tail&...) { + return value; +} + +// Part of a compiled format string. It can be either literal text or a +// replacement field. +template <typename Char> struct format_part { + enum class kind { arg_index, arg_name, text, replacement }; + + struct replacement { + arg_ref<Char> arg_id; + dynamic_format_specs<Char> specs; + }; + + kind part_kind; + union value { + int arg_index; + basic_string_view<Char> str; + replacement repl; + + FMT_CONSTEXPR value(int index = 0) : arg_index(index) {} + FMT_CONSTEXPR value(basic_string_view<Char> s) : str(s) {} + FMT_CONSTEXPR value(replacement r) : repl(r) {} + } val; + // Position past the end of the argument id. + const Char* arg_id_end = nullptr; + + FMT_CONSTEXPR format_part(kind k = kind::arg_index, value v = {}) + : part_kind(k), val(v) {} + + static FMT_CONSTEXPR format_part make_arg_index(int index) { + return format_part(kind::arg_index, index); + } + static FMT_CONSTEXPR format_part make_arg_name(basic_string_view<Char> name) { + return format_part(kind::arg_name, name); + } + static FMT_CONSTEXPR format_part make_text(basic_string_view<Char> text) { + return format_part(kind::text, text); + } + static FMT_CONSTEXPR format_part make_replacement(replacement repl) { + return format_part(kind::replacement, repl); + } +}; + +template <typename Char> struct part_counter { + unsigned num_parts = 0; + + FMT_CONSTEXPR void on_text(const Char* begin, const Char* end) { + if (begin != end) ++num_parts; + } + + FMT_CONSTEXPR int on_arg_id() { return ++num_parts, 0; } + FMT_CONSTEXPR int on_arg_id(int) { return ++num_parts, 0; } + FMT_CONSTEXPR int on_arg_id(basic_string_view<Char>) { + return ++num_parts, 0; + } + + FMT_CONSTEXPR void on_replacement_field(int, const Char*) {} + + FMT_CONSTEXPR const Char* on_format_specs(int, const Char* begin, + const Char* end) { + // Find the matching brace. + unsigned brace_counter = 0; + for (; begin != end; ++begin) { + if (*begin == '{') { + ++brace_counter; + } else if (*begin == '}') { + if (brace_counter == 0u) break; + --brace_counter; + } + } + return begin; + } + + FMT_CONSTEXPR void on_error(const char*) {} +}; + +// Counts the number of parts in a format string. +template <typename Char> +FMT_CONSTEXPR unsigned count_parts(basic_string_view<Char> format_str) { + part_counter<Char> counter; + parse_format_string<true>(format_str, counter); + return counter.num_parts; +} + +template <typename Char, typename PartHandler> +class format_string_compiler : public error_handler { + private: + using part = format_part<Char>; + + PartHandler handler_; + part part_; + basic_string_view<Char> format_str_; + basic_format_parse_context<Char> parse_context_; + + public: + FMT_CONSTEXPR format_string_compiler(basic_string_view<Char> format_str, + PartHandler handler) + : handler_(handler), + format_str_(format_str), + parse_context_(format_str) {} + + FMT_CONSTEXPR void on_text(const Char* begin, const Char* end) { + if (begin != end) + handler_(part::make_text({begin, to_unsigned(end - begin)})); + } + + FMT_CONSTEXPR int on_arg_id() { + part_ = part::make_arg_index(parse_context_.next_arg_id()); + return 0; + } + + FMT_CONSTEXPR int on_arg_id(int id) { + parse_context_.check_arg_id(id); + part_ = part::make_arg_index(id); + return 0; + } + + FMT_CONSTEXPR int on_arg_id(basic_string_view<Char> id) { + part_ = part::make_arg_name(id); + return 0; + } + + FMT_CONSTEXPR void on_replacement_field(int, const Char* ptr) { + part_.arg_id_end = ptr; + handler_(part_); + } + + FMT_CONSTEXPR const Char* on_format_specs(int, const Char* begin, + const Char* end) { + auto repl = typename part::replacement(); + dynamic_specs_handler<basic_format_parse_context<Char>> handler( + repl.specs, parse_context_); + auto it = parse_format_specs(begin, end, handler); + if (*it != '}') on_error("missing '}' in format string"); + repl.arg_id = part_.part_kind == part::kind::arg_index + ? arg_ref<Char>(part_.val.arg_index) + : arg_ref<Char>(part_.val.str); + auto part = part::make_replacement(repl); + part.arg_id_end = begin; + handler_(part); + return it; + } +}; + +// Compiles a format string and invokes handler(part) for each parsed part. +template <bool IS_CONSTEXPR, typename Char, typename PartHandler> +FMT_CONSTEXPR void compile_format_string(basic_string_view<Char> format_str, + PartHandler handler) { + parse_format_string<IS_CONSTEXPR>( + format_str, + format_string_compiler<Char, PartHandler>(format_str, handler)); +} + +template <typename OutputIt, typename Context, typename Id> +void format_arg( + basic_format_parse_context<typename Context::char_type>& parse_ctx, + Context& ctx, Id arg_id) { + ctx.advance_to(visit_format_arg( + arg_formatter<OutputIt, typename Context::char_type>(ctx, &parse_ctx), + ctx.arg(arg_id))); +} + +// vformat_to is defined in a subnamespace to prevent ADL. +namespace cf { +template <typename Context, typename OutputIt, typename CompiledFormat> +auto vformat_to(OutputIt out, CompiledFormat& cf, + basic_format_args<Context> args) -> typename Context::iterator { + using char_type = typename Context::char_type; + basic_format_parse_context<char_type> parse_ctx( + to_string_view(cf.format_str_)); + Context ctx(out, args); + + const auto& parts = cf.parts(); + for (auto part_it = std::begin(parts); part_it != std::end(parts); + ++part_it) { + const auto& part = *part_it; + const auto& value = part.val; + + using format_part_t = format_part<char_type>; + switch (part.part_kind) { + case format_part_t::kind::text: { + const auto text = value.str; + auto output = ctx.out(); + auto&& it = reserve(output, text.size()); + it = std::copy_n(text.begin(), text.size(), it); + ctx.advance_to(output); + break; + } + + case format_part_t::kind::arg_index: + advance_to(parse_ctx, part.arg_id_end); + detail::format_arg<OutputIt>(parse_ctx, ctx, value.arg_index); + break; + + case format_part_t::kind::arg_name: + advance_to(parse_ctx, part.arg_id_end); + detail::format_arg<OutputIt>(parse_ctx, ctx, value.str); + break; + + case format_part_t::kind::replacement: { + const auto& arg_id_value = value.repl.arg_id.val; + const auto arg = value.repl.arg_id.kind == arg_id_kind::index + ? ctx.arg(arg_id_value.index) + : ctx.arg(arg_id_value.name); + + auto specs = value.repl.specs; + + handle_dynamic_spec<width_checker>(specs.width, specs.width_ref, ctx); + handle_dynamic_spec<precision_checker>(specs.precision, + specs.precision_ref, ctx); + + error_handler h; + numeric_specs_checker<error_handler> checker(h, arg.type()); + if (specs.align == align::numeric) checker.require_numeric_argument(); + if (specs.sign != sign::none) checker.check_sign(); + if (specs.alt) checker.require_numeric_argument(); + if (specs.precision >= 0) checker.check_precision(); + + advance_to(parse_ctx, part.arg_id_end); + ctx.advance_to( + visit_format_arg(arg_formatter<OutputIt, typename Context::char_type>( + ctx, nullptr, &specs), + arg)); + break; + } + } + } + return ctx.out(); +} +} // namespace cf + +struct basic_compiled_format {}; + +template <typename S, typename = void> +struct compiled_format_base : basic_compiled_format { + using char_type = char_t<S>; + using parts_container = std::vector<detail::format_part<char_type>>; + + parts_container compiled_parts; + + explicit compiled_format_base(basic_string_view<char_type> format_str) { + compile_format_string<false>(format_str, + [this](const format_part<char_type>& part) { + compiled_parts.push_back(part); + }); + } + + const parts_container& parts() const { return compiled_parts; } +}; + +template <typename Char, unsigned N> struct format_part_array { + format_part<Char> data[N] = {}; + FMT_CONSTEXPR format_part_array() = default; +}; + +template <typename Char, unsigned N> +FMT_CONSTEXPR format_part_array<Char, N> compile_to_parts( + basic_string_view<Char> format_str) { + format_part_array<Char, N> parts; + unsigned counter = 0; + // This is not a lambda for compatibility with older compilers. + struct { + format_part<Char>* parts; + unsigned* counter; + FMT_CONSTEXPR void operator()(const format_part<Char>& part) { + parts[(*counter)++] = part; + } + } collector{parts.data, &counter}; + compile_format_string<true>(format_str, collector); + if (counter < N) { + parts.data[counter] = + format_part<Char>::make_text(basic_string_view<Char>()); + } + return parts; +} + +template <typename T> constexpr const T& constexpr_max(const T& a, const T& b) { + return (a < b) ? b : a; +} + +template <typename S> +struct compiled_format_base<S, enable_if_t<is_compile_string<S>::value>> + : basic_compiled_format { + using char_type = char_t<S>; + + FMT_CONSTEXPR explicit compiled_format_base(basic_string_view<char_type>) {} + +// Workaround for old compilers. Format string compilation will not be +// performed there anyway. +#if FMT_USE_CONSTEXPR + static FMT_CONSTEXPR_DECL const unsigned num_format_parts = + constexpr_max(count_parts(to_string_view(S())), 1u); +#else + static const unsigned num_format_parts = 1; +#endif + + using parts_container = format_part<char_type>[num_format_parts]; + + const parts_container& parts() const { + static FMT_CONSTEXPR_DECL const auto compiled_parts = + compile_to_parts<char_type, num_format_parts>( + detail::to_string_view(S())); + return compiled_parts.data; + } +}; + +template <typename S, typename... Args> +class compiled_format : private compiled_format_base<S> { + public: + using typename compiled_format_base<S>::char_type; + + private: + basic_string_view<char_type> format_str_; + + template <typename Context, typename OutputIt, typename CompiledFormat> + friend auto cf::vformat_to(OutputIt out, CompiledFormat& cf, + basic_format_args<Context> args) -> + typename Context::iterator; + + public: + compiled_format() = delete; + explicit constexpr compiled_format(basic_string_view<char_type> format_str) + : compiled_format_base<S>(format_str), format_str_(format_str) {} +}; + +#ifdef __cpp_if_constexpr +template <typename... Args> struct type_list {}; + +// Returns a reference to the argument at index N from [first, rest...]. +template <int N, typename T, typename... Args> +constexpr const auto& get([[maybe_unused]] const T& first, + [[maybe_unused]] const Args&... rest) { + static_assert(N < 1 + sizeof...(Args), "index is out of bounds"); + if constexpr (N == 0) + return first; + else + return get<N - 1>(rest...); +} + +template <int N, typename> struct get_type_impl; + +template <int N, typename... Args> struct get_type_impl<N, type_list<Args...>> { + using type = remove_cvref_t<decltype(get<N>(std::declval<Args>()...))>; +}; + +template <int N, typename T> +using get_type = typename get_type_impl<N, T>::type; + +template <typename T> struct is_compiled_format : std::false_type {}; + +template <typename Char> struct text { + basic_string_view<Char> data; + using char_type = Char; + + template <typename OutputIt, typename... Args> + OutputIt format(OutputIt out, const Args&...) const { + return write<Char>(out, data); + } +}; + +template <typename Char> +struct is_compiled_format<text<Char>> : std::true_type {}; + +template <typename Char> +constexpr text<Char> make_text(basic_string_view<Char> s, size_t pos, + size_t size) { + return {{&s[pos], size}}; +} + +template <typename Char> struct code_unit { + Char value; + using char_type = Char; + + template <typename OutputIt, typename... Args> + OutputIt format(OutputIt out, const Args&...) const { + return write<Char>(out, value); + } +}; + +template <typename Char> +struct is_compiled_format<code_unit<Char>> : std::true_type {}; + +// A replacement field that refers to argument N. +template <typename Char, typename T, int N> struct field { + using char_type = Char; + + template <typename OutputIt, typename... Args> + OutputIt format(OutputIt out, const Args&... args) const { + // This ensures that the argument type is convertile to `const T&`. + const T& arg = get<N>(args...); + return write<Char>(out, arg); + } +}; + +template <typename Char, typename T, int N> +struct is_compiled_format<field<Char, T, N>> : std::true_type {}; + +// A replacement field that refers to argument N and has format specifiers. +template <typename Char, typename T, int N> struct spec_field { + using char_type = Char; + mutable formatter<T, Char> fmt; + + template <typename OutputIt, typename... Args> + OutputIt format(OutputIt out, const Args&... args) const { + // This ensures that the argument type is convertile to `const T&`. + const T& arg = get<N>(args...); + const auto& vargs = + make_format_args<basic_format_context<OutputIt, Char>>(args...); + basic_format_context<OutputIt, Char> ctx(out, vargs); + return fmt.format(arg, ctx); + } +}; + +template <typename Char, typename T, int N> +struct is_compiled_format<spec_field<Char, T, N>> : std::true_type {}; + +template <typename L, typename R> struct concat { + L lhs; + R rhs; + using char_type = typename L::char_type; + + template <typename OutputIt, typename... Args> + OutputIt format(OutputIt out, const Args&... args) const { + out = lhs.format(out, args...); + return rhs.format(out, args...); + } +}; + +template <typename L, typename R> +struct is_compiled_format<concat<L, R>> : std::true_type {}; + +template <typename L, typename R> +constexpr concat<L, R> make_concat(L lhs, R rhs) { + return {lhs, rhs}; +} + +struct unknown_format {}; + +template <typename Char> +constexpr size_t parse_text(basic_string_view<Char> str, size_t pos) { + for (size_t size = str.size(); pos != size; ++pos) { + if (str[pos] == '{' || str[pos] == '}') break; + } + return pos; +} + +template <typename Args, size_t POS, int ID, typename S> +constexpr auto compile_format_string(S format_str); + +template <typename Args, size_t POS, int ID, typename T, typename S> +constexpr auto parse_tail(T head, S format_str) { + if constexpr (POS != + basic_string_view<typename S::char_type>(format_str).size()) { + constexpr auto tail = compile_format_string<Args, POS, ID>(format_str); + if constexpr (std::is_same<remove_cvref_t<decltype(tail)>, + unknown_format>()) + return tail; + else + return make_concat(head, tail); + } else { + return head; + } +} + +template <typename T, typename Char> struct parse_specs_result { + formatter<T, Char> fmt; + size_t end; + int next_arg_id; +}; + +template <typename T, typename Char> +constexpr parse_specs_result<T, Char> parse_specs(basic_string_view<Char> str, + size_t pos, int arg_id) { + str.remove_prefix(pos); + auto ctx = basic_format_parse_context<Char>(str, {}, arg_id + 1); + auto f = formatter<T, Char>(); + auto end = f.parse(ctx); + return {f, pos + (end - str.data()) + 1, ctx.next_arg_id()}; +} + +// Compiles a non-empty format string and returns the compiled representation +// or unknown_format() on unrecognized input. +template <typename Args, size_t POS, int ID, typename S> +constexpr auto compile_format_string(S format_str) { + using char_type = typename S::char_type; + constexpr basic_string_view<char_type> str = format_str; + if constexpr (str[POS] == '{') { + if (POS + 1 == str.size()) + throw format_error("unmatched '{' in format string"); + if constexpr (str[POS + 1] == '{') { + return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str); + } else if constexpr (str[POS + 1] == '}') { + using type = get_type<ID, Args>; + return parse_tail<Args, POS + 2, ID + 1>(field<char_type, type, ID>(), + format_str); + } else if constexpr (str[POS + 1] == ':') { + using type = get_type<ID, Args>; + constexpr auto result = parse_specs<type>(str, POS + 2, ID); + return parse_tail<Args, result.end, result.next_arg_id>( + spec_field<char_type, type, ID>{result.fmt}, format_str); + } else { + return unknown_format(); + } + } else if constexpr (str[POS] == '}') { + if (POS + 1 == str.size()) + throw format_error("unmatched '}' in format string"); + return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str); + } else { + constexpr auto end = parse_text(str, POS + 1); + if constexpr (end - POS > 1) { + return parse_tail<Args, end, ID>(make_text(str, POS, end - POS), + format_str); + } else { + return parse_tail<Args, end, ID>(code_unit<char_type>{str[POS]}, + format_str); + } + } +} + +template <typename... Args, typename S, + FMT_ENABLE_IF(is_compile_string<S>::value || + detail::is_compiled_string<S>::value)> +constexpr auto compile(S format_str) { + constexpr basic_string_view<typename S::char_type> str = format_str; + if constexpr (str.size() == 0) { + return detail::make_text(str, 0, 0); + } else { + constexpr auto result = + detail::compile_format_string<detail::type_list<Args...>, 0, 0>( + format_str); + if constexpr (std::is_same<remove_cvref_t<decltype(result)>, + detail::unknown_format>()) { + return detail::compiled_format<S, Args...>(to_string_view(format_str)); + } else { + return result; + } + } +} +#else +template <typename... Args, typename S, + FMT_ENABLE_IF(is_compile_string<S>::value)> +constexpr auto compile(S format_str) -> detail::compiled_format<S, Args...> { + return detail::compiled_format<S, Args...>(to_string_view(format_str)); +} +#endif // __cpp_if_constexpr + +// Compiles the format string which must be a string literal. +template <typename... Args, typename Char, size_t N> +auto compile(const Char (&format_str)[N]) + -> detail::compiled_format<const Char*, Args...> { + return detail::compiled_format<const Char*, Args...>( + basic_string_view<Char>(format_str, N - 1)); +} +} // namespace detail + +// DEPRECATED! use FMT_COMPILE instead. +template <typename... Args> +FMT_DEPRECATED auto compile(const Args&... args) + -> decltype(detail::compile(args...)) { + return detail::compile(args...); +} + +#if FMT_USE_CONSTEXPR +# ifdef __cpp_if_constexpr + +template <typename CompiledFormat, typename... Args, + typename Char = typename CompiledFormat::char_type, + FMT_ENABLE_IF(detail::is_compiled_format<CompiledFormat>::value)> +FMT_INLINE std::basic_string<Char> format(const CompiledFormat& cf, + const Args&... args) { + basic_memory_buffer<Char> buffer; + cf.format(detail::buffer_appender<Char>(buffer), args...); + return to_string(buffer); +} + +template <typename OutputIt, typename CompiledFormat, typename... Args, + FMT_ENABLE_IF(detail::is_compiled_format<CompiledFormat>::value)> +OutputIt format_to(OutputIt out, const CompiledFormat& cf, + const Args&... args) { + return cf.format(out, args...); +} +# endif // __cpp_if_constexpr +#endif // FMT_USE_CONSTEXPR + +template <typename CompiledFormat, typename... Args, + typename Char = typename CompiledFormat::char_type, + FMT_ENABLE_IF(std::is_base_of<detail::basic_compiled_format, + CompiledFormat>::value)> +std::basic_string<Char> format(const CompiledFormat& cf, const Args&... args) { + basic_memory_buffer<Char> buffer; + using context = buffer_context<Char>; + detail::cf::vformat_to<context>(detail::buffer_appender<Char>(buffer), cf, + make_format_args<context>(args...)); + return to_string(buffer); +} + +template <typename S, typename... Args, + FMT_ENABLE_IF(detail::is_compiled_string<S>::value)> +FMT_INLINE std::basic_string<typename S::char_type> format(const S&, + Args&&... args) { +#ifdef __cpp_if_constexpr + if constexpr (std::is_same<typename S::char_type, char>::value) { + constexpr basic_string_view<typename S::char_type> str = S(); + if (str.size() == 2 && str[0] == '{' && str[1] == '}') + return fmt::to_string(detail::first(args...)); + } +#endif + constexpr auto compiled = detail::compile<Args...>(S()); + return format(compiled, std::forward<Args>(args)...); +} + +template <typename OutputIt, typename CompiledFormat, typename... Args, + FMT_ENABLE_IF(std::is_base_of<detail::basic_compiled_format, + CompiledFormat>::value)> +OutputIt format_to(OutputIt out, const CompiledFormat& cf, + const Args&... args) { + using char_type = typename CompiledFormat::char_type; + using context = format_context_t<OutputIt, char_type>; + return detail::cf::vformat_to<context>(out, cf, + make_format_args<context>(args...)); +} + +template <typename OutputIt, typename S, typename... Args, + FMT_ENABLE_IF(detail::is_compiled_string<S>::value)> +OutputIt format_to(OutputIt out, const S&, const Args&... args) { + constexpr auto compiled = detail::compile<Args...>(S()); + return format_to(out, compiled, args...); +} + +template <typename OutputIt, typename CompiledFormat, typename... Args> +auto format_to_n(OutputIt out, size_t n, const CompiledFormat& cf, + const Args&... args) -> + typename std::enable_if< + detail::is_output_iterator<OutputIt, + typename CompiledFormat::char_type>::value && + std::is_base_of<detail::basic_compiled_format, + CompiledFormat>::value, + format_to_n_result<OutputIt>>::type { + auto it = + format_to(detail::truncating_iterator<OutputIt>(out, n), cf, args...); + return {it.base(), it.count()}; +} + +template <typename OutputIt, typename S, typename... Args, + FMT_ENABLE_IF(detail::is_compiled_string<S>::value)> +format_to_n_result<OutputIt> format_to_n(OutputIt out, size_t n, const S&, + const Args&... args) { + constexpr auto compiled = detail::compile<Args...>(S()); + auto it = format_to(detail::truncating_iterator<OutputIt>(out, n), compiled, + args...); + return {it.base(), it.count()}; +} + +template <typename CompiledFormat, typename... Args> +size_t formatted_size(const CompiledFormat& cf, const Args&... args) { + return format_to(detail::counting_iterator(), cf, args...).count(); +} + +FMT_END_NAMESPACE + +#endif // FMT_COMPILE_H_ diff --git a/contrib/libs/fmt/include/fmt/core.h b/contrib/libs/fmt/include/fmt/core.h new file mode 100644 index 0000000000..73a8015822 --- /dev/null +++ b/contrib/libs/fmt/include/fmt/core.h @@ -0,0 +1,2122 @@ +// Formatting library for C++ - the core API +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#ifndef FMT_CORE_H_ +#define FMT_CORE_H_ + +#include <cstdio> // std::FILE +#include <cstring> +#include <functional> +#include <iterator> +#include <memory> +#include <string> +#include <type_traits> +#include <vector> + +// The fmt library version in the form major * 10000 + minor * 100 + patch. +#define FMT_VERSION 70103 + +#ifdef __clang__ +# define FMT_CLANG_VERSION (__clang_major__ * 100 + __clang_minor__) +#else +# define FMT_CLANG_VERSION 0 +#endif + +#if defined(__GNUC__) && !defined(__clang__) +# define FMT_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__) +#else +# define FMT_GCC_VERSION 0 +#endif + +#if defined(__INTEL_COMPILER) +# define FMT_ICC_VERSION __INTEL_COMPILER +#else +# define FMT_ICC_VERSION 0 +#endif + +#if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__) +# define FMT_HAS_GXX_CXX11 FMT_GCC_VERSION +#else +# define FMT_HAS_GXX_CXX11 0 +#endif + +#ifdef __NVCC__ +# define FMT_NVCC __NVCC__ +#else +# define FMT_NVCC 0 +#endif + +#ifdef _MSC_VER +# define FMT_MSC_VER _MSC_VER +# define FMT_SUPPRESS_MSC_WARNING(n) __pragma(warning(suppress : n)) +#else +# define FMT_MSC_VER 0 +# define FMT_SUPPRESS_MSC_WARNING(n) +#endif + +#ifdef __has_feature +# define FMT_HAS_FEATURE(x) __has_feature(x) +#else +# define FMT_HAS_FEATURE(x) 0 +#endif + +#if defined(__has_include) && !defined(__INTELLISENSE__) && \ + (!FMT_ICC_VERSION || FMT_ICC_VERSION >= 1600) +# define FMT_HAS_INCLUDE(x) __has_include(x) +#else +# define FMT_HAS_INCLUDE(x) 0 +#endif + +#ifdef __has_cpp_attribute +# define FMT_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x) +#else +# define FMT_HAS_CPP_ATTRIBUTE(x) 0 +#endif + +#define FMT_HAS_CPP14_ATTRIBUTE(attribute) \ + (__cplusplus >= 201402L && FMT_HAS_CPP_ATTRIBUTE(attribute)) + +#define FMT_HAS_CPP17_ATTRIBUTE(attribute) \ + (__cplusplus >= 201703L && FMT_HAS_CPP_ATTRIBUTE(attribute)) + +// Check if relaxed C++14 constexpr is supported. +// GCC doesn't allow throw in constexpr until version 6 (bug 67371). +#ifndef FMT_USE_CONSTEXPR +# define FMT_USE_CONSTEXPR \ + (FMT_HAS_FEATURE(cxx_relaxed_constexpr) || FMT_MSC_VER >= 1910 || \ + (FMT_GCC_VERSION >= 600 && __cplusplus >= 201402L)) && \ + !FMT_NVCC && !FMT_ICC_VERSION +#endif +#if FMT_USE_CONSTEXPR +# define FMT_CONSTEXPR constexpr +# define FMT_CONSTEXPR_DECL constexpr +#else +# define FMT_CONSTEXPR inline +# define FMT_CONSTEXPR_DECL +#endif + +#ifndef FMT_OVERRIDE +# if FMT_HAS_FEATURE(cxx_override_control) || \ + (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1900 +# define FMT_OVERRIDE override +# else +# define FMT_OVERRIDE +# endif +#endif + +// Check if exceptions are disabled. +#ifndef FMT_EXCEPTIONS +# if (defined(__GNUC__) && !defined(__EXCEPTIONS)) || \ + FMT_MSC_VER && !_HAS_EXCEPTIONS +# define FMT_EXCEPTIONS 0 +# else +# define FMT_EXCEPTIONS 1 +# endif +#endif + +// Define FMT_USE_NOEXCEPT to make fmt use noexcept (C++11 feature). +#ifndef FMT_USE_NOEXCEPT +# define FMT_USE_NOEXCEPT 0 +#endif + +#if FMT_USE_NOEXCEPT || FMT_HAS_FEATURE(cxx_noexcept) || \ + (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1900 +# define FMT_DETECTED_NOEXCEPT noexcept +# define FMT_HAS_CXX11_NOEXCEPT 1 +#else +# define FMT_DETECTED_NOEXCEPT throw() +# define FMT_HAS_CXX11_NOEXCEPT 0 +#endif + +#ifndef FMT_NOEXCEPT +# if FMT_EXCEPTIONS || FMT_HAS_CXX11_NOEXCEPT +# define FMT_NOEXCEPT FMT_DETECTED_NOEXCEPT +# else +# define FMT_NOEXCEPT +# endif +#endif + +// [[noreturn]] is disabled on MSVC and NVCC because of bogus unreachable code +// warnings. +#if FMT_EXCEPTIONS && FMT_HAS_CPP_ATTRIBUTE(noreturn) && !FMT_MSC_VER && \ + !FMT_NVCC +# define FMT_NORETURN [[noreturn]] +#else +# define FMT_NORETURN +#endif + +#ifndef FMT_DEPRECATED +# if FMT_HAS_CPP14_ATTRIBUTE(deprecated) || FMT_MSC_VER >= 1900 +# define FMT_DEPRECATED [[deprecated]] +# else +# if (defined(__GNUC__) && !defined(__LCC__)) || defined(__clang__) +# define FMT_DEPRECATED __attribute__((deprecated)) +# elif FMT_MSC_VER +# define FMT_DEPRECATED __declspec(deprecated) +# else +# define FMT_DEPRECATED /* deprecated */ +# endif +# endif +#endif + +// Workaround broken [[deprecated]] in the Intel, PGI and NVCC compilers. +#if FMT_ICC_VERSION || defined(__PGI) || FMT_NVCC +# define FMT_DEPRECATED_ALIAS +#else +# define FMT_DEPRECATED_ALIAS FMT_DEPRECATED +#endif + +#ifndef FMT_INLINE +# if FMT_GCC_VERSION || FMT_CLANG_VERSION +# define FMT_INLINE inline __attribute__((always_inline)) +# else +# define FMT_INLINE inline +# endif +#endif + +#ifndef FMT_USE_INLINE_NAMESPACES +# if FMT_HAS_FEATURE(cxx_inline_namespaces) || FMT_GCC_VERSION >= 404 || \ + (FMT_MSC_VER >= 1900 && !_MANAGED) +# define FMT_USE_INLINE_NAMESPACES 1 +# else +# define FMT_USE_INLINE_NAMESPACES 0 +# endif +#endif + +#ifndef FMT_BEGIN_NAMESPACE +# if FMT_USE_INLINE_NAMESPACES +# define FMT_INLINE_NAMESPACE inline namespace +# define FMT_END_NAMESPACE \ + } \ + } +# else +# define FMT_INLINE_NAMESPACE namespace +# define FMT_END_NAMESPACE \ + } \ + using namespace v7; \ + } +# endif +# define FMT_BEGIN_NAMESPACE \ + namespace fmt { \ + FMT_INLINE_NAMESPACE v7 { +#endif + +#if !defined(FMT_HEADER_ONLY) && defined(_WIN32) +# define FMT_CLASS_API FMT_SUPPRESS_MSC_WARNING(4275) +# ifdef FMT_EXPORT +# define FMT_API __declspec(dllexport) +# define FMT_EXTERN_TEMPLATE_API FMT_API +# define FMT_EXPORTED +# elif defined(FMT_SHARED) +# define FMT_API __declspec(dllimport) +# define FMT_EXTERN_TEMPLATE_API FMT_API +# endif +#else +# define FMT_CLASS_API +#endif +#ifndef FMT_API +# define FMT_API +#endif +#ifndef FMT_EXTERN_TEMPLATE_API +# define FMT_EXTERN_TEMPLATE_API +#endif +#ifndef FMT_INSTANTIATION_DEF_API +# define FMT_INSTANTIATION_DEF_API FMT_API +#endif + +#ifndef FMT_HEADER_ONLY +# define FMT_EXTERN extern +#else +# define FMT_EXTERN +#endif + +// libc++ supports string_view in pre-c++17. +#if (FMT_HAS_INCLUDE(<string_view>) && \ + (__cplusplus > 201402L || defined(_LIBCPP_VERSION))) || \ + (defined(_MSVC_LANG) && _MSVC_LANG > 201402L && _MSC_VER >= 1910) +# include <string_view> +# define FMT_USE_STRING_VIEW +#elif FMT_HAS_INCLUDE("experimental/string_view") && __cplusplus >= 201402L +# error #include <experimental/string_view> +# define FMT_USE_EXPERIMENTAL_STRING_VIEW +#endif + +#ifndef FMT_UNICODE +# define FMT_UNICODE !FMT_MSC_VER +#endif +#if FMT_UNICODE && FMT_MSC_VER +# pragma execution_character_set("utf-8") +#endif + +FMT_BEGIN_NAMESPACE + +// Implementations of enable_if_t and other metafunctions for older systems. +template <bool B, class T = void> +using enable_if_t = typename std::enable_if<B, T>::type; +template <bool B, class T, class F> +using conditional_t = typename std::conditional<B, T, F>::type; +template <bool B> using bool_constant = std::integral_constant<bool, B>; +template <typename T> +using remove_reference_t = typename std::remove_reference<T>::type; +template <typename T> +using remove_const_t = typename std::remove_const<T>::type; +template <typename T> +using remove_cvref_t = typename std::remove_cv<remove_reference_t<T>>::type; +template <typename T> struct type_identity { using type = T; }; +template <typename T> using type_identity_t = typename type_identity<T>::type; + +struct monostate {}; + +// An enable_if helper to be used in template parameters which results in much +// shorter symbols: https://godbolt.org/z/sWw4vP. Extra parentheses are needed +// to workaround a bug in MSVC 2019 (see #1140 and #1186). +#define FMT_ENABLE_IF(...) enable_if_t<(__VA_ARGS__), int> = 0 + +namespace detail { + +// A helper function to suppress "conditional expression is constant" warnings. +template <typename T> constexpr T const_check(T value) { return value; } + +FMT_NORETURN FMT_API void assert_fail(const char* file, int line, + const char* message); + +#ifndef FMT_ASSERT +# ifdef NDEBUG +// FMT_ASSERT is not empty to avoid -Werror=empty-body. +# define FMT_ASSERT(condition, message) ((void)0) +# else +# define FMT_ASSERT(condition, message) \ + ((condition) /* void() fails with -Winvalid-constexpr on clang 4.0.1 */ \ + ? (void)0 \ + : ::fmt::detail::assert_fail(__FILE__, __LINE__, (message))) +# endif +#endif + +#if defined(FMT_USE_STRING_VIEW) +template <typename Char> using std_string_view = std::basic_string_view<Char>; +#elif defined(FMT_USE_EXPERIMENTAL_STRING_VIEW) +template <typename Char> +using std_string_view = std::experimental::basic_string_view<Char>; +#else +template <typename T> struct std_string_view {}; +#endif + +#ifdef FMT_USE_INT128 +// Do nothing. +#elif defined(__SIZEOF_INT128__) && !FMT_NVCC && \ + !(FMT_CLANG_VERSION && FMT_MSC_VER) +# define FMT_USE_INT128 1 +using int128_t = __int128_t; +using uint128_t = __uint128_t; +#else +# define FMT_USE_INT128 0 +#endif +#if !FMT_USE_INT128 +struct int128_t {}; +struct uint128_t {}; +#endif + +// Casts a nonnegative integer to unsigned. +template <typename Int> +FMT_CONSTEXPR typename std::make_unsigned<Int>::type to_unsigned(Int value) { + FMT_ASSERT(value >= 0, "negative value"); + return static_cast<typename std::make_unsigned<Int>::type>(value); +} + +FMT_SUPPRESS_MSC_WARNING(4566) constexpr unsigned char micro[] = "\u00B5"; + +template <typename Char> constexpr bool is_unicode() { + return FMT_UNICODE || sizeof(Char) != 1 || + (sizeof(micro) == 3 && micro[0] == 0xC2 && micro[1] == 0xB5); +} + +#ifdef __cpp_char8_t +using char8_type = char8_t; +#else +enum char8_type : unsigned char {}; +#endif +} // namespace detail + +#ifdef FMT_USE_INTERNAL +namespace internal = detail; // DEPRECATED +#endif + +/** + An implementation of ``std::basic_string_view`` for pre-C++17. It provides a + subset of the API. ``fmt::basic_string_view`` is used for format strings even + if ``std::string_view`` is available to prevent issues when a library is + compiled with a different ``-std`` option than the client code (which is not + recommended). + */ +template <typename Char> class basic_string_view { + private: + const Char* data_; + size_t size_; + + public: + using value_type = Char; + using iterator = const Char*; + + constexpr basic_string_view() FMT_NOEXCEPT : data_(nullptr), size_(0) {} + + /** Constructs a string reference object from a C string and a size. */ + constexpr basic_string_view(const Char* s, size_t count) FMT_NOEXCEPT + : data_(s), + size_(count) {} + + /** + \rst + Constructs a string reference object from a C string computing + the size with ``std::char_traits<Char>::length``. + \endrst + */ +#if __cplusplus >= 201703L // C++17's char_traits::length() is constexpr. + FMT_CONSTEXPR +#endif + basic_string_view(const Char* s) + : data_(s), size_(std::char_traits<Char>::length(s)) {} + + /** Constructs a string reference from a ``std::basic_string`` object. */ + template <typename Traits, typename Alloc> + FMT_CONSTEXPR basic_string_view( + const std::basic_string<Char, Traits, Alloc>& s) FMT_NOEXCEPT + : data_(s.data()), + size_(s.size()) {} + + template <typename S, FMT_ENABLE_IF(std::is_same< + S, detail::std_string_view<Char>>::value)> + FMT_CONSTEXPR basic_string_view(S s) FMT_NOEXCEPT : data_(s.data()), + size_(s.size()) {} + + /** Returns a pointer to the string data. */ + constexpr const Char* data() const { return data_; } + + /** Returns the string size. */ + constexpr size_t size() const { return size_; } + + constexpr iterator begin() const { return data_; } + constexpr iterator end() const { return data_ + size_; } + + constexpr const Char& operator[](size_t pos) const { return data_[pos]; } + + FMT_CONSTEXPR void remove_prefix(size_t n) { + data_ += n; + size_ -= n; + } + + // Lexicographically compare this string reference to other. + int compare(basic_string_view other) const { + size_t str_size = size_ < other.size_ ? size_ : other.size_; + int result = std::char_traits<Char>::compare(data_, other.data_, str_size); + if (result == 0) + result = size_ == other.size_ ? 0 : (size_ < other.size_ ? -1 : 1); + return result; + } + + friend bool operator==(basic_string_view lhs, basic_string_view rhs) { + return lhs.compare(rhs) == 0; + } + friend bool operator!=(basic_string_view lhs, basic_string_view rhs) { + return lhs.compare(rhs) != 0; + } + friend bool operator<(basic_string_view lhs, basic_string_view rhs) { + return lhs.compare(rhs) < 0; + } + friend bool operator<=(basic_string_view lhs, basic_string_view rhs) { + return lhs.compare(rhs) <= 0; + } + friend bool operator>(basic_string_view lhs, basic_string_view rhs) { + return lhs.compare(rhs) > 0; + } + friend bool operator>=(basic_string_view lhs, basic_string_view rhs) { + return lhs.compare(rhs) >= 0; + } +}; + +using string_view = basic_string_view<char>; +using wstring_view = basic_string_view<wchar_t>; + +/** Specifies if ``T`` is a character type. Can be specialized by users. */ +template <typename T> struct is_char : std::false_type {}; +template <> struct is_char<char> : std::true_type {}; +template <> struct is_char<wchar_t> : std::true_type {}; +template <> struct is_char<detail::char8_type> : std::true_type {}; +template <> struct is_char<char16_t> : std::true_type {}; +template <> struct is_char<char32_t> : std::true_type {}; + +/** + \rst + Returns a string view of `s`. In order to add custom string type support to + {fmt} provide an overload of `to_string_view` for it in the same namespace as + the type for the argument-dependent lookup to work. + + **Example**:: + + namespace my_ns { + inline string_view to_string_view(const my_string& s) { + return {s.data(), s.length()}; + } + } + std::string message = fmt::format(my_string("The answer is {}"), 42); + \endrst + */ +template <typename Char, FMT_ENABLE_IF(is_char<Char>::value)> +inline basic_string_view<Char> to_string_view(const Char* s) { + return s; +} + +template <typename Char, typename Traits, typename Alloc> +inline basic_string_view<Char> to_string_view( + const std::basic_string<Char, Traits, Alloc>& s) { + return s; +} + +template <typename Char> +inline basic_string_view<Char> to_string_view(basic_string_view<Char> s) { + return s; +} + +template <typename Char, + FMT_ENABLE_IF(!std::is_empty<detail::std_string_view<Char>>::value)> +inline basic_string_view<Char> to_string_view(detail::std_string_view<Char> s) { + return s; +} + +// A base class for compile-time strings. It is defined in the fmt namespace to +// make formatting functions visible via ADL, e.g. format(FMT_STRING("{}"), 42). +struct compile_string {}; + +template <typename S> +struct is_compile_string : std::is_base_of<compile_string, S> {}; + +template <typename S, FMT_ENABLE_IF(is_compile_string<S>::value)> +constexpr basic_string_view<typename S::char_type> to_string_view(const S& s) { + return s; +} + +namespace detail { +void to_string_view(...); +using fmt::v7::to_string_view; + +// Specifies whether S is a string type convertible to fmt::basic_string_view. +// It should be a constexpr function but MSVC 2017 fails to compile it in +// enable_if and MSVC 2015 fails to compile it as an alias template. +template <typename S> +struct is_string : std::is_class<decltype(to_string_view(std::declval<S>()))> { +}; + +template <typename S, typename = void> struct char_t_impl {}; +template <typename S> struct char_t_impl<S, enable_if_t<is_string<S>::value>> { + using result = decltype(to_string_view(std::declval<S>())); + using type = typename result::value_type; +}; + +// Reports a compile-time error if S is not a valid format string. +template <typename..., typename S, FMT_ENABLE_IF(!is_compile_string<S>::value)> +FMT_INLINE void check_format_string(const S&) { +#ifdef FMT_ENFORCE_COMPILE_STRING + static_assert(is_compile_string<S>::value, + "FMT_ENFORCE_COMPILE_STRING requires all format strings to use " + "FMT_STRING."); +#endif +} +template <typename..., typename S, FMT_ENABLE_IF(is_compile_string<S>::value)> +void check_format_string(S); + +struct error_handler { + constexpr error_handler() = default; + constexpr error_handler(const error_handler&) = default; + + // This function is intentionally not constexpr to give a compile-time error. + FMT_NORETURN FMT_API void on_error(const char* message); +}; +} // namespace detail + +/** String's character type. */ +template <typename S> using char_t = typename detail::char_t_impl<S>::type; + +/** + \rst + Parsing context consisting of a format string range being parsed and an + argument counter for automatic indexing. + + You can use one of the following type aliases for common character types: + + +-----------------------+-------------------------------------+ + | Type | Definition | + +=======================+=====================================+ + | format_parse_context | basic_format_parse_context<char> | + +-----------------------+-------------------------------------+ + | wformat_parse_context | basic_format_parse_context<wchar_t> | + +-----------------------+-------------------------------------+ + \endrst + */ +template <typename Char, typename ErrorHandler = detail::error_handler> +class basic_format_parse_context : private ErrorHandler { + private: + basic_string_view<Char> format_str_; + int next_arg_id_; + + public: + using char_type = Char; + using iterator = typename basic_string_view<Char>::iterator; + + explicit constexpr basic_format_parse_context( + basic_string_view<Char> format_str, ErrorHandler eh = {}, + int next_arg_id = 0) + : ErrorHandler(eh), format_str_(format_str), next_arg_id_(next_arg_id) {} + + /** + Returns an iterator to the beginning of the format string range being + parsed. + */ + constexpr iterator begin() const FMT_NOEXCEPT { return format_str_.begin(); } + + /** + Returns an iterator past the end of the format string range being parsed. + */ + constexpr iterator end() const FMT_NOEXCEPT { return format_str_.end(); } + + /** Advances the begin iterator to ``it``. */ + FMT_CONSTEXPR void advance_to(iterator it) { + format_str_.remove_prefix(detail::to_unsigned(it - begin())); + } + + /** + Reports an error if using the manual argument indexing; otherwise returns + the next argument index and switches to the automatic indexing. + */ + FMT_CONSTEXPR int next_arg_id() { + // Don't check if the argument id is valid to avoid overhead and because it + // will be checked during formatting anyway. + if (next_arg_id_ >= 0) return next_arg_id_++; + on_error("cannot switch from manual to automatic argument indexing"); + return 0; + } + + /** + Reports an error if using the automatic argument indexing; otherwise + switches to the manual indexing. + */ + FMT_CONSTEXPR void check_arg_id(int) { + if (next_arg_id_ > 0) + on_error("cannot switch from automatic to manual argument indexing"); + else + next_arg_id_ = -1; + } + + FMT_CONSTEXPR void check_arg_id(basic_string_view<Char>) {} + + FMT_CONSTEXPR void on_error(const char* message) { + ErrorHandler::on_error(message); + } + + constexpr ErrorHandler error_handler() const { return *this; } +}; + +using format_parse_context = basic_format_parse_context<char>; +using wformat_parse_context = basic_format_parse_context<wchar_t>; + +template <typename Context> class basic_format_arg; +template <typename Context> class basic_format_args; +template <typename Context> class dynamic_format_arg_store; + +// A formatter for objects of type T. +template <typename T, typename Char = char, typename Enable = void> +struct formatter { + // A deleted default constructor indicates a disabled formatter. + formatter() = delete; +}; + +// Specifies if T has an enabled formatter specialization. A type can be +// formattable even if it doesn't have a formatter e.g. via a conversion. +template <typename T, typename Context> +using has_formatter = + std::is_constructible<typename Context::template formatter_type<T>>; + +// Checks whether T is a container with contiguous storage. +template <typename T> struct is_contiguous : std::false_type {}; +template <typename Char> +struct is_contiguous<std::basic_string<Char>> : std::true_type {}; + +namespace detail { + +// Extracts a reference to the container from back_insert_iterator. +template <typename Container> +inline Container& get_container(std::back_insert_iterator<Container> it) { + using bi_iterator = std::back_insert_iterator<Container>; + struct accessor : bi_iterator { + accessor(bi_iterator iter) : bi_iterator(iter) {} + using bi_iterator::container; + }; + return *accessor(it).container; +} + +/** + \rst + A contiguous memory buffer with an optional growing ability. It is an internal + class and shouldn't be used directly, only via `~fmt::basic_memory_buffer`. + \endrst + */ +template <typename T> class buffer { + private: + T* ptr_; + size_t size_; + size_t capacity_; + + protected: + // Don't initialize ptr_ since it is not accessed to save a few cycles. + FMT_SUPPRESS_MSC_WARNING(26495) + buffer(size_t sz) FMT_NOEXCEPT : size_(sz), capacity_(sz) {} + + buffer(T* p = nullptr, size_t sz = 0, size_t cap = 0) FMT_NOEXCEPT + : ptr_(p), + size_(sz), + capacity_(cap) {} + + ~buffer() = default; + + /** Sets the buffer data and capacity. */ + void set(T* buf_data, size_t buf_capacity) FMT_NOEXCEPT { + ptr_ = buf_data; + capacity_ = buf_capacity; + } + + /** Increases the buffer capacity to hold at least *capacity* elements. */ + virtual void grow(size_t capacity) = 0; + + public: + using value_type = T; + using const_reference = const T&; + + buffer(const buffer&) = delete; + void operator=(const buffer&) = delete; + + T* begin() FMT_NOEXCEPT { return ptr_; } + T* end() FMT_NOEXCEPT { return ptr_ + size_; } + + const T* begin() const FMT_NOEXCEPT { return ptr_; } + const T* end() const FMT_NOEXCEPT { return ptr_ + size_; } + + /** Returns the size of this buffer. */ + size_t size() const FMT_NOEXCEPT { return size_; } + + /** Returns the capacity of this buffer. */ + size_t capacity() const FMT_NOEXCEPT { return capacity_; } + + /** Returns a pointer to the buffer data. */ + T* data() FMT_NOEXCEPT { return ptr_; } + + /** Returns a pointer to the buffer data. */ + const T* data() const FMT_NOEXCEPT { return ptr_; } + + /** Clears this buffer. */ + void clear() { size_ = 0; } + + // Tries resizing the buffer to contain *count* elements. If T is a POD type + // the new elements may not be initialized. + void try_resize(size_t count) { + try_reserve(count); + size_ = count <= capacity_ ? count : capacity_; + } + + // Tries increasing the buffer capacity to *new_capacity*. It can increase the + // capacity by a smaller amount than requested but guarantees there is space + // for at least one additional element either by increasing the capacity or by + // flushing the buffer if it is full. + void try_reserve(size_t new_capacity) { + if (new_capacity > capacity_) grow(new_capacity); + } + + void push_back(const T& value) { + try_reserve(size_ + 1); + ptr_[size_++] = value; + } + + /** Appends data to the end of the buffer. */ + template <typename U> void append(const U* begin, const U* end); + + template <typename I> T& operator[](I index) { return ptr_[index]; } + template <typename I> const T& operator[](I index) const { + return ptr_[index]; + } +}; + +struct buffer_traits { + explicit buffer_traits(size_t) {} + size_t count() const { return 0; } + size_t limit(size_t size) { return size; } +}; + +class fixed_buffer_traits { + private: + size_t count_ = 0; + size_t limit_; + + public: + explicit fixed_buffer_traits(size_t limit) : limit_(limit) {} + size_t count() const { return count_; } + size_t limit(size_t size) { + size_t n = limit_ > count_ ? limit_ - count_ : 0; + count_ += size; + return size < n ? size : n; + } +}; + +// A buffer that writes to an output iterator when flushed. +template <typename OutputIt, typename T, typename Traits = buffer_traits> +class iterator_buffer final : public Traits, public buffer<T> { + private: + OutputIt out_; + enum { buffer_size = 256 }; + T data_[buffer_size]; + + protected: + void grow(size_t) final FMT_OVERRIDE { + if (this->size() == buffer_size) flush(); + } + void flush(); + + public: + explicit iterator_buffer(OutputIt out, size_t n = buffer_size) + : Traits(n), + buffer<T>(data_, 0, buffer_size), + out_(out) {} + ~iterator_buffer() { flush(); } + + OutputIt out() { + flush(); + return out_; + } + size_t count() const { return Traits::count() + this->size(); } +}; + +template <typename T> class iterator_buffer<T*, T> final : public buffer<T> { + protected: + void grow(size_t) final FMT_OVERRIDE {} + + public: + explicit iterator_buffer(T* out, size_t = 0) : buffer<T>(out, 0, ~size_t()) {} + + T* out() { return &*this->end(); } +}; + +// A buffer that writes to a container with the contiguous storage. +template <typename Container> +class iterator_buffer<std::back_insert_iterator<Container>, + enable_if_t<is_contiguous<Container>::value, + typename Container::value_type>> + final : public buffer<typename Container::value_type> { + private: + Container& container_; + + protected: + void grow(size_t capacity) final FMT_OVERRIDE { + container_.resize(capacity); + this->set(&container_[0], capacity); + } + + public: + explicit iterator_buffer(Container& c) + : buffer<typename Container::value_type>(c.size()), container_(c) {} + explicit iterator_buffer(std::back_insert_iterator<Container> out, size_t = 0) + : iterator_buffer(get_container(out)) {} + std::back_insert_iterator<Container> out() { + return std::back_inserter(container_); + } +}; + +// A buffer that counts the number of code units written discarding the output. +template <typename T = char> class counting_buffer final : public buffer<T> { + private: + enum { buffer_size = 256 }; + T data_[buffer_size]; + size_t count_ = 0; + + protected: + void grow(size_t) final FMT_OVERRIDE { + if (this->size() != buffer_size) return; + count_ += this->size(); + this->clear(); + } + + public: + counting_buffer() : buffer<T>(data_, 0, buffer_size) {} + + size_t count() { return count_ + this->size(); } +}; + +// An output iterator that appends to the buffer. +// It is used to reduce symbol sizes for the common case. +template <typename T> +class buffer_appender : public std::back_insert_iterator<buffer<T>> { + using base = std::back_insert_iterator<buffer<T>>; + + public: + explicit buffer_appender(buffer<T>& buf) : base(buf) {} + buffer_appender(base it) : base(it) {} + + buffer_appender& operator++() { + base::operator++(); + return *this; + } + + buffer_appender operator++(int) { + buffer_appender tmp = *this; + ++*this; + return tmp; + } +}; + +// Maps an output iterator into a buffer. +template <typename T, typename OutputIt> +iterator_buffer<OutputIt, T> get_buffer(OutputIt); +template <typename T> buffer<T>& get_buffer(buffer_appender<T>); + +template <typename OutputIt> OutputIt get_buffer_init(OutputIt out) { + return out; +} +template <typename T> buffer<T>& get_buffer_init(buffer_appender<T> out) { + return get_container(out); +} + +template <typename Buffer> +auto get_iterator(Buffer& buf) -> decltype(buf.out()) { + return buf.out(); +} +template <typename T> buffer_appender<T> get_iterator(buffer<T>& buf) { + return buffer_appender<T>(buf); +} + +template <typename T, typename Char = char, typename Enable = void> +struct fallback_formatter { + fallback_formatter() = delete; +}; + +// Specifies if T has an enabled fallback_formatter specialization. +template <typename T, typename Context> +using has_fallback_formatter = + std::is_constructible<fallback_formatter<T, typename Context::char_type>>; + +struct view {}; + +template <typename Char, typename T> struct named_arg : view { + const Char* name; + const T& value; + named_arg(const Char* n, const T& v) : name(n), value(v) {} +}; + +template <typename Char> struct named_arg_info { + const Char* name; + int id; +}; + +template <typename T, typename Char, size_t NUM_ARGS, size_t NUM_NAMED_ARGS> +struct arg_data { + // args_[0].named_args points to named_args_ to avoid bloating format_args. + // +1 to workaround a bug in gcc 7.5 that causes duplicated-branches warning. + T args_[1 + (NUM_ARGS != 0 ? NUM_ARGS : +1)]; + named_arg_info<Char> named_args_[NUM_NAMED_ARGS]; + + template <typename... U> + arg_data(const U&... init) : args_{T(named_args_, NUM_NAMED_ARGS), init...} {} + arg_data(const arg_data& other) = delete; + const T* args() const { return args_ + 1; } + named_arg_info<Char>* named_args() { return named_args_; } +}; + +template <typename T, typename Char, size_t NUM_ARGS> +struct arg_data<T, Char, NUM_ARGS, 0> { + // +1 to workaround a bug in gcc 7.5 that causes duplicated-branches warning. + T args_[NUM_ARGS != 0 ? NUM_ARGS : +1]; + + template <typename... U> + FMT_INLINE arg_data(const U&... init) : args_{init...} {} + FMT_INLINE const T* args() const { return args_; } + FMT_INLINE std::nullptr_t named_args() { return nullptr; } +}; + +template <typename Char> +inline void init_named_args(named_arg_info<Char>*, int, int) {} + +template <typename Char, typename T, typename... Tail> +void init_named_args(named_arg_info<Char>* named_args, int arg_count, + int named_arg_count, const T&, const Tail&... args) { + init_named_args(named_args, arg_count + 1, named_arg_count, args...); +} + +template <typename Char, typename T, typename... Tail> +void init_named_args(named_arg_info<Char>* named_args, int arg_count, + int named_arg_count, const named_arg<Char, T>& arg, + const Tail&... args) { + named_args[named_arg_count++] = {arg.name, arg_count}; + init_named_args(named_args, arg_count + 1, named_arg_count, args...); +} + +template <typename... Args> +FMT_INLINE void init_named_args(std::nullptr_t, int, int, const Args&...) {} + +template <typename T> struct is_named_arg : std::false_type {}; + +template <typename T, typename Char> +struct is_named_arg<named_arg<Char, T>> : std::true_type {}; + +template <bool B = false> constexpr size_t count() { return B ? 1 : 0; } +template <bool B1, bool B2, bool... Tail> constexpr size_t count() { + return (B1 ? 1 : 0) + count<B2, Tail...>(); +} + +template <typename... Args> constexpr size_t count_named_args() { + return count<is_named_arg<Args>::value...>(); +} + +enum class type { + none_type, + // Integer types should go first, + int_type, + uint_type, + long_long_type, + ulong_long_type, + int128_type, + uint128_type, + bool_type, + char_type, + last_integer_type = char_type, + // followed by floating-point types. + float_type, + double_type, + long_double_type, + last_numeric_type = long_double_type, + cstring_type, + string_type, + pointer_type, + custom_type +}; + +// Maps core type T to the corresponding type enum constant. +template <typename T, typename Char> +struct type_constant : std::integral_constant<type, type::custom_type> {}; + +#define FMT_TYPE_CONSTANT(Type, constant) \ + template <typename Char> \ + struct type_constant<Type, Char> \ + : std::integral_constant<type, type::constant> {} + +FMT_TYPE_CONSTANT(int, int_type); +FMT_TYPE_CONSTANT(unsigned, uint_type); +FMT_TYPE_CONSTANT(long long, long_long_type); +FMT_TYPE_CONSTANT(unsigned long long, ulong_long_type); +FMT_TYPE_CONSTANT(int128_t, int128_type); +FMT_TYPE_CONSTANT(uint128_t, uint128_type); +FMT_TYPE_CONSTANT(bool, bool_type); +FMT_TYPE_CONSTANT(Char, char_type); +FMT_TYPE_CONSTANT(float, float_type); +FMT_TYPE_CONSTANT(double, double_type); +FMT_TYPE_CONSTANT(long double, long_double_type); +FMT_TYPE_CONSTANT(const Char*, cstring_type); +FMT_TYPE_CONSTANT(basic_string_view<Char>, string_type); +FMT_TYPE_CONSTANT(const void*, pointer_type); + +constexpr bool is_integral_type(type t) { + return t > type::none_type && t <= type::last_integer_type; +} + +constexpr bool is_arithmetic_type(type t) { + return t > type::none_type && t <= type::last_numeric_type; +} + +template <typename Char> struct string_value { + const Char* data; + size_t size; +}; + +template <typename Char> struct named_arg_value { + const named_arg_info<Char>* data; + size_t size; +}; + +template <typename Context> struct custom_value { + using parse_context = typename Context::parse_context_type; + const void* value; + void (*format)(const void* arg, parse_context& parse_ctx, Context& ctx); +}; + +// A formatting argument value. +template <typename Context> class value { + public: + using char_type = typename Context::char_type; + + union { + int int_value; + unsigned uint_value; + long long long_long_value; + unsigned long long ulong_long_value; + int128_t int128_value; + uint128_t uint128_value; + bool bool_value; + char_type char_value; + float float_value; + double double_value; + long double long_double_value; + const void* pointer; + string_value<char_type> string; + custom_value<Context> custom; + named_arg_value<char_type> named_args; + }; + + constexpr FMT_INLINE value(int val = 0) : int_value(val) {} + constexpr FMT_INLINE value(unsigned val) : uint_value(val) {} + FMT_INLINE value(long long val) : long_long_value(val) {} + FMT_INLINE value(unsigned long long val) : ulong_long_value(val) {} + FMT_INLINE value(int128_t val) : int128_value(val) {} + FMT_INLINE value(uint128_t val) : uint128_value(val) {} + FMT_INLINE value(float val) : float_value(val) {} + FMT_INLINE value(double val) : double_value(val) {} + FMT_INLINE value(long double val) : long_double_value(val) {} + FMT_INLINE value(bool val) : bool_value(val) {} + FMT_INLINE value(char_type val) : char_value(val) {} + FMT_INLINE value(const char_type* val) { string.data = val; } + FMT_INLINE value(basic_string_view<char_type> val) { + string.data = val.data(); + string.size = val.size(); + } + FMT_INLINE value(const void* val) : pointer(val) {} + FMT_INLINE value(const named_arg_info<char_type>* args, size_t size) + : named_args{args, size} {} + + template <typename T> FMT_INLINE value(const T& val) { + custom.value = &val; + // Get the formatter type through the context to allow different contexts + // have different extension points, e.g. `formatter<T>` for `format` and + // `printf_formatter<T>` for `printf`. + custom.format = format_custom_arg< + T, conditional_t<has_formatter<T, Context>::value, + typename Context::template formatter_type<T>, + fallback_formatter<T, char_type>>>; + } + + private: + // Formats an argument of a custom type, such as a user-defined class. + template <typename T, typename Formatter> + static void format_custom_arg(const void* arg, + typename Context::parse_context_type& parse_ctx, + Context& ctx) { + Formatter f; + parse_ctx.advance_to(f.parse(parse_ctx)); + ctx.advance_to(f.format(*static_cast<const T*>(arg), ctx)); + } +}; + +template <typename Context, typename T> +FMT_CONSTEXPR basic_format_arg<Context> make_arg(const T& value); + +// To minimize the number of types we need to deal with, long is translated +// either to int or to long long depending on its size. +enum { long_short = sizeof(long) == sizeof(int) }; +using long_type = conditional_t<long_short, int, long long>; +using ulong_type = conditional_t<long_short, unsigned, unsigned long long>; + +struct unformattable {}; + +// Maps formatting arguments to core types. +template <typename Context> struct arg_mapper { + using char_type = typename Context::char_type; + + FMT_CONSTEXPR int map(signed char val) { return val; } + FMT_CONSTEXPR unsigned map(unsigned char val) { return val; } + FMT_CONSTEXPR int map(short val) { return val; } + FMT_CONSTEXPR unsigned map(unsigned short val) { return val; } + FMT_CONSTEXPR int map(int val) { return val; } + FMT_CONSTEXPR unsigned map(unsigned val) { return val; } + FMT_CONSTEXPR long_type map(long val) { return val; } + FMT_CONSTEXPR ulong_type map(unsigned long val) { return val; } + FMT_CONSTEXPR long long map(long long val) { return val; } + FMT_CONSTEXPR unsigned long long map(unsigned long long val) { return val; } + FMT_CONSTEXPR int128_t map(int128_t val) { return val; } + FMT_CONSTEXPR uint128_t map(uint128_t val) { return val; } + FMT_CONSTEXPR bool map(bool val) { return val; } + + template <typename T, FMT_ENABLE_IF(is_char<T>::value)> + FMT_CONSTEXPR char_type map(T val) { + static_assert( + std::is_same<T, char>::value || std::is_same<T, char_type>::value, + "mixing character types is disallowed"); + return val; + } + + FMT_CONSTEXPR float map(float val) { return val; } + FMT_CONSTEXPR double map(double val) { return val; } + FMT_CONSTEXPR long double map(long double val) { return val; } + + FMT_CONSTEXPR const char_type* map(char_type* val) { return val; } + FMT_CONSTEXPR const char_type* map(const char_type* val) { return val; } + template <typename T, FMT_ENABLE_IF(is_string<T>::value)> + FMT_CONSTEXPR basic_string_view<char_type> map(const T& val) { + static_assert(std::is_same<char_type, char_t<T>>::value, + "mixing character types is disallowed"); + return to_string_view(val); + } + template <typename T, + FMT_ENABLE_IF( + std::is_constructible<basic_string_view<char_type>, T>::value && + !is_string<T>::value && !has_formatter<T, Context>::value && + !has_fallback_formatter<T, Context>::value)> + FMT_CONSTEXPR basic_string_view<char_type> map(const T& val) { + return basic_string_view<char_type>(val); + } + template < + typename T, + FMT_ENABLE_IF( + std::is_constructible<std_string_view<char_type>, T>::value && + !std::is_constructible<basic_string_view<char_type>, T>::value && + !is_string<T>::value && !has_formatter<T, Context>::value && + !has_fallback_formatter<T, Context>::value)> + FMT_CONSTEXPR basic_string_view<char_type> map(const T& val) { + return std_string_view<char_type>(val); + } + FMT_CONSTEXPR const char* map(const signed char* val) { + static_assert(std::is_same<char_type, char>::value, "invalid string type"); + return reinterpret_cast<const char*>(val); + } + FMT_CONSTEXPR const char* map(const unsigned char* val) { + static_assert(std::is_same<char_type, char>::value, "invalid string type"); + return reinterpret_cast<const char*>(val); + } + FMT_CONSTEXPR const char* map(signed char* val) { + const auto* const_val = val; + return map(const_val); + } + FMT_CONSTEXPR const char* map(unsigned char* val) { + const auto* const_val = val; + return map(const_val); + } + + FMT_CONSTEXPR const void* map(void* val) { return val; } + FMT_CONSTEXPR const void* map(const void* val) { return val; } + FMT_CONSTEXPR const void* map(std::nullptr_t val) { return val; } + template <typename T> FMT_CONSTEXPR int map(const T*) { + // Formatting of arbitrary pointers is disallowed. If you want to output + // a pointer cast it to "void *" or "const void *". In particular, this + // forbids formatting of "[const] volatile char *" which is printed as bool + // by iostreams. + static_assert(!sizeof(T), "formatting of non-void pointers is disallowed"); + return 0; + } + + template <typename T, + FMT_ENABLE_IF(std::is_enum<T>::value && + !has_formatter<T, Context>::value && + !has_fallback_formatter<T, Context>::value)> + FMT_CONSTEXPR auto map(const T& val) + -> decltype(std::declval<arg_mapper>().map( + static_cast<typename std::underlying_type<T>::type>(val))) { + return map(static_cast<typename std::underlying_type<T>::type>(val)); + } + template <typename T, + FMT_ENABLE_IF(!is_string<T>::value && !is_char<T>::value && + (has_formatter<T, Context>::value || + has_fallback_formatter<T, Context>::value))> + FMT_CONSTEXPR const T& map(const T& val) { + return val; + } + + template <typename T> + FMT_CONSTEXPR auto map(const named_arg<char_type, T>& val) + -> decltype(std::declval<arg_mapper>().map(val.value)) { + return map(val.value); + } + + unformattable map(...) { return {}; } +}; + +// A type constant after applying arg_mapper<Context>. +template <typename T, typename Context> +using mapped_type_constant = + type_constant<decltype(arg_mapper<Context>().map(std::declval<const T&>())), + typename Context::char_type>; + +enum { packed_arg_bits = 4 }; +// Maximum number of arguments with packed types. +enum { max_packed_args = 62 / packed_arg_bits }; +enum : unsigned long long { is_unpacked_bit = 1ULL << 63 }; +enum : unsigned long long { has_named_args_bit = 1ULL << 62 }; +} // namespace detail + +// A formatting argument. It is a trivially copyable/constructible type to +// allow storage in basic_memory_buffer. +template <typename Context> class basic_format_arg { + private: + detail::value<Context> value_; + detail::type type_; + + template <typename ContextType, typename T> + friend FMT_CONSTEXPR basic_format_arg<ContextType> detail::make_arg( + const T& value); + + template <typename Visitor, typename Ctx> + friend FMT_CONSTEXPR auto visit_format_arg(Visitor&& vis, + const basic_format_arg<Ctx>& arg) + -> decltype(vis(0)); + + friend class basic_format_args<Context>; + friend class dynamic_format_arg_store<Context>; + + using char_type = typename Context::char_type; + + template <typename T, typename Char, size_t NUM_ARGS, size_t NUM_NAMED_ARGS> + friend struct detail::arg_data; + + basic_format_arg(const detail::named_arg_info<char_type>* args, size_t size) + : value_(args, size) {} + + public: + class handle { + public: + explicit handle(detail::custom_value<Context> custom) : custom_(custom) {} + + void format(typename Context::parse_context_type& parse_ctx, + Context& ctx) const { + custom_.format(custom_.value, parse_ctx, ctx); + } + + private: + detail::custom_value<Context> custom_; + }; + + constexpr basic_format_arg() : type_(detail::type::none_type) {} + + constexpr explicit operator bool() const FMT_NOEXCEPT { + return type_ != detail::type::none_type; + } + + detail::type type() const { return type_; } + + bool is_integral() const { return detail::is_integral_type(type_); } + bool is_arithmetic() const { return detail::is_arithmetic_type(type_); } +}; + +/** + \rst + Visits an argument dispatching to the appropriate visit method based on + the argument type. For example, if the argument type is ``double`` then + ``vis(value)`` will be called with the value of type ``double``. + \endrst + */ +template <typename Visitor, typename Context> +FMT_CONSTEXPR_DECL FMT_INLINE auto visit_format_arg( + Visitor&& vis, const basic_format_arg<Context>& arg) -> decltype(vis(0)) { + using char_type = typename Context::char_type; + switch (arg.type_) { + case detail::type::none_type: + break; + case detail::type::int_type: + return vis(arg.value_.int_value); + case detail::type::uint_type: + return vis(arg.value_.uint_value); + case detail::type::long_long_type: + return vis(arg.value_.long_long_value); + case detail::type::ulong_long_type: + return vis(arg.value_.ulong_long_value); +#if FMT_USE_INT128 + case detail::type::int128_type: + return vis(arg.value_.int128_value); + case detail::type::uint128_type: + return vis(arg.value_.uint128_value); +#else + case detail::type::int128_type: + case detail::type::uint128_type: + break; +#endif + case detail::type::bool_type: + return vis(arg.value_.bool_value); + case detail::type::char_type: + return vis(arg.value_.char_value); + case detail::type::float_type: + return vis(arg.value_.float_value); + case detail::type::double_type: + return vis(arg.value_.double_value); + case detail::type::long_double_type: + return vis(arg.value_.long_double_value); + case detail::type::cstring_type: + return vis(arg.value_.string.data); + case detail::type::string_type: + return vis(basic_string_view<char_type>(arg.value_.string.data, + arg.value_.string.size)); + case detail::type::pointer_type: + return vis(arg.value_.pointer); + case detail::type::custom_type: + return vis(typename basic_format_arg<Context>::handle(arg.value_.custom)); + } + return vis(monostate()); +} + +template <typename T> struct formattable : std::false_type {}; + +namespace detail { + +// A workaround for gcc 4.8 to make void_t work in a SFINAE context. +template <typename... Ts> struct void_t_impl { using type = void; }; +template <typename... Ts> +using void_t = typename detail::void_t_impl<Ts...>::type; + +template <typename It, typename T, typename Enable = void> +struct is_output_iterator : std::false_type {}; + +template <typename It, typename T> +struct is_output_iterator< + It, T, + void_t<typename std::iterator_traits<It>::iterator_category, + decltype(*std::declval<It>() = std::declval<T>())>> + : std::true_type {}; + +template <typename OutputIt> +struct is_back_insert_iterator : std::false_type {}; +template <typename Container> +struct is_back_insert_iterator<std::back_insert_iterator<Container>> + : std::true_type {}; + +template <typename OutputIt> +struct is_contiguous_back_insert_iterator : std::false_type {}; +template <typename Container> +struct is_contiguous_back_insert_iterator<std::back_insert_iterator<Container>> + : is_contiguous<Container> {}; +template <typename Char> +struct is_contiguous_back_insert_iterator<buffer_appender<Char>> + : std::true_type {}; + +// A type-erased reference to an std::locale to avoid heavy <locale> include. +class locale_ref { + private: + const void* locale_; // A type-erased pointer to std::locale. + + public: + locale_ref() : locale_(nullptr) {} + template <typename Locale> explicit locale_ref(const Locale& loc); + + explicit operator bool() const FMT_NOEXCEPT { return locale_ != nullptr; } + + template <typename Locale> Locale get() const; +}; + +template <typename> constexpr unsigned long long encode_types() { return 0; } + +template <typename Context, typename Arg, typename... Args> +constexpr unsigned long long encode_types() { + return static_cast<unsigned>(mapped_type_constant<Arg, Context>::value) | + (encode_types<Context, Args...>() << packed_arg_bits); +} + +template <typename Context, typename T> +FMT_CONSTEXPR basic_format_arg<Context> make_arg(const T& value) { + basic_format_arg<Context> arg; + arg.type_ = mapped_type_constant<T, Context>::value; + arg.value_ = arg_mapper<Context>().map(value); + return arg; +} + +template <typename T> int check(unformattable) { + static_assert( + formattable<T>(), + "Cannot format an argument. To make type T formattable provide a " + "formatter<T> specialization: https://fmt.dev/latest/api.html#udt"); + return 0; +} +template <typename T, typename U> inline const U& check(const U& val) { + return val; +} + +// The type template parameter is there to avoid an ODR violation when using +// a fallback formatter in one translation unit and an implicit conversion in +// another (not recommended). +template <bool IS_PACKED, typename Context, type, typename T, + FMT_ENABLE_IF(IS_PACKED)> +inline value<Context> make_arg(const T& val) { + return check<T>(arg_mapper<Context>().map(val)); +} + +template <bool IS_PACKED, typename Context, type, typename T, + FMT_ENABLE_IF(!IS_PACKED)> +inline basic_format_arg<Context> make_arg(const T& value) { + return make_arg<Context>(value); +} + +template <typename T> struct is_reference_wrapper : std::false_type {}; +template <typename T> +struct is_reference_wrapper<std::reference_wrapper<T>> : std::true_type {}; + +template <typename T> const T& unwrap(const T& v) { return v; } +template <typename T> const T& unwrap(const std::reference_wrapper<T>& v) { + return static_cast<const T&>(v); +} + +class dynamic_arg_list { + // Workaround for clang's -Wweak-vtables. Unlike for regular classes, for + // templates it doesn't complain about inability to deduce single translation + // unit for placing vtable. So storage_node_base is made a fake template. + template <typename = void> struct node { + virtual ~node() = default; + std::unique_ptr<node<>> next; + }; + + template <typename T> struct typed_node : node<> { + T value; + + template <typename Arg> + FMT_CONSTEXPR typed_node(const Arg& arg) : value(arg) {} + + template <typename Char> + FMT_CONSTEXPR typed_node(const basic_string_view<Char>& arg) + : value(arg.data(), arg.size()) {} + }; + + std::unique_ptr<node<>> head_; + + public: + template <typename T, typename Arg> const T& push(const Arg& arg) { + auto new_node = std::unique_ptr<typed_node<T>>(new typed_node<T>(arg)); + auto& value = new_node->value; + new_node->next = std::move(head_); + head_ = std::move(new_node); + return value; + } +}; +} // namespace detail + +// Formatting context. +template <typename OutputIt, typename Char> class basic_format_context { + public: + /** The character type for the output. */ + using char_type = Char; + + private: + OutputIt out_; + basic_format_args<basic_format_context> args_; + detail::locale_ref loc_; + + public: + using iterator = OutputIt; + using format_arg = basic_format_arg<basic_format_context>; + using parse_context_type = basic_format_parse_context<Char>; + template <typename T> using formatter_type = formatter<T, char_type>; + + basic_format_context(const basic_format_context&) = delete; + void operator=(const basic_format_context&) = delete; + /** + Constructs a ``basic_format_context`` object. References to the arguments are + stored in the object so make sure they have appropriate lifetimes. + */ + basic_format_context(OutputIt out, + basic_format_args<basic_format_context> ctx_args, + detail::locale_ref loc = detail::locale_ref()) + : out_(out), args_(ctx_args), loc_(loc) {} + + format_arg arg(int id) const { return args_.get(id); } + format_arg arg(basic_string_view<char_type> name) { return args_.get(name); } + int arg_id(basic_string_view<char_type> name) { return args_.get_id(name); } + const basic_format_args<basic_format_context>& args() const { return args_; } + + detail::error_handler error_handler() { return {}; } + void on_error(const char* message) { error_handler().on_error(message); } + + // Returns an iterator to the beginning of the output range. + iterator out() { return out_; } + + // Advances the begin iterator to ``it``. + void advance_to(iterator it) { + if (!detail::is_back_insert_iterator<iterator>()) out_ = it; + } + + detail::locale_ref locale() { return loc_; } +}; + +template <typename Char> +using buffer_context = + basic_format_context<detail::buffer_appender<Char>, Char>; +using format_context = buffer_context<char>; +using wformat_context = buffer_context<wchar_t>; + +// Workaround an alias issue: https://stackoverflow.com/q/62767544/471164. +#define FMT_BUFFER_CONTEXT(Char) \ + basic_format_context<detail::buffer_appender<Char>, Char> + +/** + \rst + An array of references to arguments. It can be implicitly converted into + `~fmt::basic_format_args` for passing into type-erased formatting functions + such as `~fmt::vformat`. + \endrst + */ +template <typename Context, typename... Args> +class format_arg_store +#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409 + // Workaround a GCC template argument substitution bug. + : public basic_format_args<Context> +#endif +{ + private: + static const size_t num_args = sizeof...(Args); + static const size_t num_named_args = detail::count_named_args<Args...>(); + static const bool is_packed = num_args <= detail::max_packed_args; + + using value_type = conditional_t<is_packed, detail::value<Context>, + basic_format_arg<Context>>; + + detail::arg_data<value_type, typename Context::char_type, num_args, + num_named_args> + data_; + + friend class basic_format_args<Context>; + + static constexpr unsigned long long desc = + (is_packed ? detail::encode_types<Context, Args...>() + : detail::is_unpacked_bit | num_args) | + (num_named_args != 0 + ? static_cast<unsigned long long>(detail::has_named_args_bit) + : 0); + + public: + format_arg_store(const Args&... args) + : +#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409 + basic_format_args<Context>(*this), +#endif + data_{detail::make_arg< + is_packed, Context, + detail::mapped_type_constant<Args, Context>::value>(args)...} { + detail::init_named_args(data_.named_args(), 0, 0, args...); + } +}; + +/** + \rst + Constructs a `~fmt::format_arg_store` object that contains references to + arguments and can be implicitly converted to `~fmt::format_args`. `Context` + can be omitted in which case it defaults to `~fmt::context`. + See `~fmt::arg` for lifetime considerations. + \endrst + */ +template <typename Context = format_context, typename... Args> +inline format_arg_store<Context, Args...> make_format_args( + const Args&... args) { + return {args...}; +} + +/** + \rst + Constructs a `~fmt::format_arg_store` object that contains references + to arguments and can be implicitly converted to `~fmt::format_args`. + If ``format_str`` is a compile-time string then `make_args_checked` checks + its validity at compile time. + \endrst + */ +template <typename... Args, typename S, typename Char = char_t<S>> +inline auto make_args_checked(const S& format_str, + const remove_reference_t<Args>&... args) + -> format_arg_store<buffer_context<Char>, remove_reference_t<Args>...> { + static_assert( + detail::count<( + std::is_base_of<detail::view, remove_reference_t<Args>>::value && + std::is_reference<Args>::value)...>() == 0, + "passing views as lvalues is disallowed"); + detail::check_format_string<Args...>(format_str); + return {args...}; +} + +/** + \rst + Returns a named argument to be used in a formatting function. It should only + be used in a call to a formatting function. + + **Example**:: + + fmt::print("Elapsed time: {s:.2f} seconds", fmt::arg("s", 1.23)); + \endrst + */ +template <typename Char, typename T> +inline detail::named_arg<Char, T> arg(const Char* name, const T& arg) { + static_assert(!detail::is_named_arg<T>(), "nested named arguments"); + return {name, arg}; +} + +/** + \rst + A dynamic version of `fmt::format_arg_store`. + It's equipped with a storage to potentially temporary objects which lifetimes + could be shorter than the format arguments object. + + It can be implicitly converted into `~fmt::basic_format_args` for passing + into type-erased formatting functions such as `~fmt::vformat`. + \endrst + */ +template <typename Context> +class dynamic_format_arg_store +#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409 + // Workaround a GCC template argument substitution bug. + : public basic_format_args<Context> +#endif +{ + private: + using char_type = typename Context::char_type; + + template <typename T> struct need_copy { + static constexpr detail::type mapped_type = + detail::mapped_type_constant<T, Context>::value; + + enum { + value = !(detail::is_reference_wrapper<T>::value || + std::is_same<T, basic_string_view<char_type>>::value || + std::is_same<T, detail::std_string_view<char_type>>::value || + (mapped_type != detail::type::cstring_type && + mapped_type != detail::type::string_type && + mapped_type != detail::type::custom_type)) + }; + }; + + template <typename T> + using stored_type = conditional_t<detail::is_string<T>::value, + std::basic_string<char_type>, T>; + + // Storage of basic_format_arg must be contiguous. + std::vector<basic_format_arg<Context>> data_; + std::vector<detail::named_arg_info<char_type>> named_info_; + + // Storage of arguments not fitting into basic_format_arg must grow + // without relocation because items in data_ refer to it. + detail::dynamic_arg_list dynamic_args_; + + friend class basic_format_args<Context>; + + unsigned long long get_types() const { + return detail::is_unpacked_bit | data_.size() | + (named_info_.empty() + ? 0ULL + : static_cast<unsigned long long>(detail::has_named_args_bit)); + } + + const basic_format_arg<Context>* data() const { + return named_info_.empty() ? data_.data() : data_.data() + 1; + } + + template <typename T> void emplace_arg(const T& arg) { + data_.emplace_back(detail::make_arg<Context>(arg)); + } + + template <typename T> + void emplace_arg(const detail::named_arg<char_type, T>& arg) { + if (named_info_.empty()) { + constexpr const detail::named_arg_info<char_type>* zero_ptr{nullptr}; + data_.insert(data_.begin(), {zero_ptr, 0}); + } + data_.emplace_back(detail::make_arg<Context>(detail::unwrap(arg.value))); + auto pop_one = [](std::vector<basic_format_arg<Context>>* data) { + data->pop_back(); + }; + std::unique_ptr<std::vector<basic_format_arg<Context>>, decltype(pop_one)> + guard{&data_, pop_one}; + named_info_.push_back({arg.name, static_cast<int>(data_.size() - 2u)}); + data_[0].value_.named_args = {named_info_.data(), named_info_.size()}; + guard.release(); + } + + public: + /** + \rst + Adds an argument into the dynamic store for later passing to a formatting + function. + + Note that custom types and string types (but not string views) are copied + into the store dynamically allocating memory if necessary. + + **Example**:: + + fmt::dynamic_format_arg_store<fmt::format_context> store; + store.push_back(42); + store.push_back("abc"); + store.push_back(1.5f); + std::string result = fmt::vformat("{} and {} and {}", store); + \endrst + */ + template <typename T> void push_back(const T& arg) { + if (detail::const_check(need_copy<T>::value)) + emplace_arg(dynamic_args_.push<stored_type<T>>(arg)); + else + emplace_arg(detail::unwrap(arg)); + } + + /** + \rst + Adds a reference to the argument into the dynamic store for later passing to + a formatting function. Supports named arguments wrapped in + ``std::reference_wrapper`` via ``std::ref()``/``std::cref()``. + + **Example**:: + + fmt::dynamic_format_arg_store<fmt::format_context> store; + char str[] = "1234567890"; + store.push_back(std::cref(str)); + int a1_val{42}; + auto a1 = fmt::arg("a1_", a1_val); + store.push_back(std::cref(a1)); + + // Changing str affects the output but only for string and custom types. + str[0] = 'X'; + + std::string result = fmt::vformat("{} and {a1_}"); + assert(result == "X234567890 and 42"); + \endrst + */ + template <typename T> void push_back(std::reference_wrapper<T> arg) { + static_assert( + detail::is_named_arg<typename std::remove_cv<T>::type>::value || + need_copy<T>::value, + "objects of built-in types and string views are always copied"); + emplace_arg(arg.get()); + } + + /** + Adds named argument into the dynamic store for later passing to a formatting + function. ``std::reference_wrapper`` is supported to avoid copying of the + argument. + */ + template <typename T> + void push_back(const detail::named_arg<char_type, T>& arg) { + const char_type* arg_name = + dynamic_args_.push<std::basic_string<char_type>>(arg.name).c_str(); + if (detail::const_check(need_copy<T>::value)) { + emplace_arg( + fmt::arg(arg_name, dynamic_args_.push<stored_type<T>>(arg.value))); + } else { + emplace_arg(fmt::arg(arg_name, arg.value)); + } + } + + /** Erase all elements from the store */ + void clear() { + data_.clear(); + named_info_.clear(); + dynamic_args_ = detail::dynamic_arg_list(); + } + + /** + \rst + Reserves space to store at least *new_cap* arguments including + *new_cap_named* named arguments. + \endrst + */ + void reserve(size_t new_cap, size_t new_cap_named) { + FMT_ASSERT(new_cap >= new_cap_named, + "Set of arguments includes set of named arguments"); + data_.reserve(new_cap); + named_info_.reserve(new_cap_named); + } +}; + +/** + \rst + A view of a collection of formatting arguments. To avoid lifetime issues it + should only be used as a parameter type in type-erased functions such as + ``vformat``:: + + void vlog(string_view format_str, format_args args); // OK + format_args args = make_format_args(42); // Error: dangling reference + \endrst + */ +template <typename Context> class basic_format_args { + public: + using size_type = int; + using format_arg = basic_format_arg<Context>; + + private: + // A descriptor that contains information about formatting arguments. + // If the number of arguments is less or equal to max_packed_args then + // argument types are passed in the descriptor. This reduces binary code size + // per formatting function call. + unsigned long long desc_; + union { + // If is_packed() returns true then argument values are stored in values_; + // otherwise they are stored in args_. This is done to improve cache + // locality and reduce compiled code size since storing larger objects + // may require more code (at least on x86-64) even if the same amount of + // data is actually copied to stack. It saves ~10% on the bloat test. + const detail::value<Context>* values_; + const format_arg* args_; + }; + + bool is_packed() const { return (desc_ & detail::is_unpacked_bit) == 0; } + bool has_named_args() const { + return (desc_ & detail::has_named_args_bit) != 0; + } + + detail::type type(int index) const { + int shift = index * detail::packed_arg_bits; + unsigned int mask = (1 << detail::packed_arg_bits) - 1; + return static_cast<detail::type>((desc_ >> shift) & mask); + } + + basic_format_args(unsigned long long desc, + const detail::value<Context>* values) + : desc_(desc), values_(values) {} + basic_format_args(unsigned long long desc, const format_arg* args) + : desc_(desc), args_(args) {} + + public: + basic_format_args() : desc_(0) {} + + /** + \rst + Constructs a `basic_format_args` object from `~fmt::format_arg_store`. + \endrst + */ + template <typename... Args> + FMT_INLINE basic_format_args(const format_arg_store<Context, Args...>& store) + : basic_format_args(store.desc, store.data_.args()) {} + + /** + \rst + Constructs a `basic_format_args` object from + `~fmt::dynamic_format_arg_store`. + \endrst + */ + FMT_INLINE basic_format_args(const dynamic_format_arg_store<Context>& store) + : basic_format_args(store.get_types(), store.data()) {} + + /** + \rst + Constructs a `basic_format_args` object from a dynamic set of arguments. + \endrst + */ + basic_format_args(const format_arg* args, int count) + : basic_format_args(detail::is_unpacked_bit | detail::to_unsigned(count), + args) {} + + /** Returns the argument with the specified id. */ + format_arg get(int id) const { + format_arg arg; + if (!is_packed()) { + if (id < max_size()) arg = args_[id]; + return arg; + } + if (id >= detail::max_packed_args) return arg; + arg.type_ = type(id); + if (arg.type_ == detail::type::none_type) return arg; + arg.value_ = values_[id]; + return arg; + } + + template <typename Char> format_arg get(basic_string_view<Char> name) const { + int id = get_id(name); + return id >= 0 ? get(id) : format_arg(); + } + + template <typename Char> int get_id(basic_string_view<Char> name) const { + if (!has_named_args()) return -1; + const auto& named_args = + (is_packed() ? values_[-1] : args_[-1].value_).named_args; + for (size_t i = 0; i < named_args.size; ++i) { + if (named_args.data[i].name == name) return named_args.data[i].id; + } + return -1; + } + + int max_size() const { + unsigned long long max_packed = detail::max_packed_args; + return static_cast<int>(is_packed() ? max_packed + : desc_ & ~detail::is_unpacked_bit); + } +}; + +#ifdef FMT_ARM_ABI_COMPATIBILITY +/** An alias to ``basic_format_args<format_context>``. */ +// Separate types would result in shorter symbols but break ABI compatibility +// between clang and gcc on ARM (#1919). +using format_args = basic_format_args<format_context>; +using wformat_args = basic_format_args<wformat_context>; +#else +// DEPRECATED! These are kept for ABI compatibility. +// It is a separate type rather than an alias to make symbols readable. +struct format_args : basic_format_args<format_context> { + template <typename... Args> + FMT_INLINE format_args(const Args&... args) : basic_format_args(args...) {} +}; +struct wformat_args : basic_format_args<wformat_context> { + using basic_format_args::basic_format_args; +}; +#endif + +namespace detail { + +template <typename Char, FMT_ENABLE_IF(!std::is_same<Char, char>::value)> +std::basic_string<Char> vformat( + basic_string_view<Char> format_str, + basic_format_args<buffer_context<type_identity_t<Char>>> args); + +FMT_API std::string vformat(string_view format_str, format_args args); + +template <typename Char> +void vformat_to( + buffer<Char>& buf, basic_string_view<Char> format_str, + basic_format_args<FMT_BUFFER_CONTEXT(type_identity_t<Char>)> args, + detail::locale_ref loc = {}); + +template <typename Char, typename Args, + FMT_ENABLE_IF(!std::is_same<Char, char>::value)> +inline void vprint_mojibake(std::FILE*, basic_string_view<Char>, const Args&) {} + +FMT_API void vprint_mojibake(std::FILE*, string_view, format_args); +#ifndef _WIN32 +inline void vprint_mojibake(std::FILE*, string_view, format_args) {} +#endif +} // namespace detail + +/** Formats a string and writes the output to ``out``. */ +// GCC 8 and earlier cannot handle std::back_insert_iterator<Container> with +// vformat_to<ArgFormatter>(...) overload, so SFINAE on iterator type instead. +template <typename OutputIt, typename S, typename Char = char_t<S>, + bool enable = detail::is_output_iterator<OutputIt, Char>::value> +auto vformat_to(OutputIt out, const S& format_str, + basic_format_args<buffer_context<type_identity_t<Char>>> args) + -> typename std::enable_if<enable, OutputIt>::type { + decltype(detail::get_buffer<Char>(out)) buf(detail::get_buffer_init(out)); + detail::vformat_to(buf, to_string_view(format_str), args); + return detail::get_iterator(buf); +} + +/** + \rst + Formats arguments, writes the result to the output iterator ``out`` and returns + the iterator past the end of the output range. + + **Example**:: + + std::vector<char> out; + fmt::format_to(std::back_inserter(out), "{}", 42); + \endrst + */ +// We cannot use FMT_ENABLE_IF because of a bug in gcc 8.3. +template <typename OutputIt, typename S, typename... Args, + bool enable = detail::is_output_iterator<OutputIt, char_t<S>>::value> +inline auto format_to(OutputIt out, const S& format_str, Args&&... args) -> + typename std::enable_if<enable, OutputIt>::type { + const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...); + return vformat_to(out, to_string_view(format_str), vargs); +} + +template <typename OutputIt> struct format_to_n_result { + /** Iterator past the end of the output range. */ + OutputIt out; + /** Total (not truncated) output size. */ + size_t size; +}; + +template <typename OutputIt, typename Char, typename... Args, + FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value)> +inline format_to_n_result<OutputIt> vformat_to_n( + OutputIt out, size_t n, basic_string_view<Char> format_str, + basic_format_args<buffer_context<type_identity_t<Char>>> args) { + detail::iterator_buffer<OutputIt, Char, detail::fixed_buffer_traits> buf(out, + n); + detail::vformat_to(buf, format_str, args); + return {buf.out(), buf.count()}; +} + +/** + \rst + Formats arguments, writes up to ``n`` characters of the result to the output + iterator ``out`` and returns the total output size and the iterator past the + end of the output range. + \endrst + */ +template <typename OutputIt, typename S, typename... Args, + bool enable = detail::is_output_iterator<OutputIt, char_t<S>>::value> +inline auto format_to_n(OutputIt out, size_t n, const S& format_str, + const Args&... args) -> + typename std::enable_if<enable, format_to_n_result<OutputIt>>::type { + const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...); + return vformat_to_n(out, n, to_string_view(format_str), vargs); +} + +/** + Returns the number of characters in the output of + ``format(format_str, args...)``. + */ +template <typename... Args> +inline size_t formatted_size(string_view format_str, Args&&... args) { + const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...); + detail::counting_buffer<> buf; + detail::vformat_to(buf, format_str, vargs); + return buf.count(); +} + +template <typename S, typename Char = char_t<S>> +FMT_INLINE std::basic_string<Char> vformat( + const S& format_str, + basic_format_args<buffer_context<type_identity_t<Char>>> args) { + return detail::vformat(to_string_view(format_str), args); +} + +/** + \rst + Formats arguments and returns the result as a string. + + **Example**:: + + #include <fmt/core.h> + std::string message = fmt::format("The answer is {}", 42); + \endrst +*/ +// Pass char_t as a default template parameter instead of using +// std::basic_string<char_t<S>> to reduce the symbol size. +template <typename S, typename... Args, typename Char = char_t<S>> +FMT_INLINE std::basic_string<Char> format(const S& format_str, Args&&... args) { + const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...); + return detail::vformat(to_string_view(format_str), vargs); +} + +FMT_API void vprint(string_view, format_args); +FMT_API void vprint(std::FILE*, string_view, format_args); + +/** + \rst + Formats ``args`` according to specifications in ``format_str`` and writes the + output to the file ``f``. Strings are assumed to be Unicode-encoded unless the + ``FMT_UNICODE`` macro is set to 0. + + **Example**:: + + fmt::print(stderr, "Don't {}!", "panic"); + \endrst + */ +template <typename S, typename... Args, typename Char = char_t<S>> +inline void print(std::FILE* f, const S& format_str, Args&&... args) { + const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...); + return detail::is_unicode<Char>() + ? vprint(f, to_string_view(format_str), vargs) + : detail::vprint_mojibake(f, to_string_view(format_str), vargs); +} + +/** + \rst + Formats ``args`` according to specifications in ``format_str`` and writes + the output to ``stdout``. Strings are assumed to be Unicode-encoded unless + the ``FMT_UNICODE`` macro is set to 0. + + **Example**:: + + fmt::print("Elapsed time: {0:.2f} seconds", 1.23); + \endrst + */ +template <typename S, typename... Args, typename Char = char_t<S>> +inline void print(const S& format_str, Args&&... args) { + const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...); + return detail::is_unicode<Char>() + ? vprint(to_string_view(format_str), vargs) + : detail::vprint_mojibake(stdout, to_string_view(format_str), + vargs); +} +FMT_END_NAMESPACE + +#endif // FMT_CORE_H_ diff --git a/contrib/libs/fmt/include/fmt/format-inl.h b/contrib/libs/fmt/include/fmt/format-inl.h new file mode 100644 index 0000000000..8f2fe7354a --- /dev/null +++ b/contrib/libs/fmt/include/fmt/format-inl.h @@ -0,0 +1,2801 @@ +// Formatting library for C++ - implementation +// +// Copyright (c) 2012 - 2016, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#ifndef FMT_FORMAT_INL_H_ +#define FMT_FORMAT_INL_H_ + +#include <cassert> +#include <cctype> +#include <climits> +#include <cmath> +#include <cstdarg> +#include <cstring> // std::memmove +#include <cwchar> +#include <exception> + +#ifndef FMT_STATIC_THOUSANDS_SEPARATOR +# include <locale> +#endif + +#ifdef _WIN32 +# include <io.h> // _isatty +#endif + +#include "format.h" + +// Dummy implementations of strerror_r and strerror_s called if corresponding +// system functions are not available. +inline fmt::detail::null<> strerror_r(int, char*, ...) { return {}; } +inline fmt::detail::null<> strerror_s(char*, size_t, ...) { return {}; } + +FMT_BEGIN_NAMESPACE +namespace detail { + +FMT_FUNC void assert_fail(const char* file, int line, const char* message) { + // Use unchecked std::fprintf to avoid triggering another assertion when + // writing to stderr fails + std::fprintf(stderr, "%s:%d: assertion failed: %s", file, line, message); + // Chosen instead of std::abort to satisfy Clang in CUDA mode during device + // code pass. + std::terminate(); +} + +#ifndef _MSC_VER +# define FMT_SNPRINTF snprintf +#else // _MSC_VER +inline int fmt_snprintf(char* buffer, size_t size, const char* format, ...) { + va_list args; + va_start(args, format); + int result = vsnprintf_s(buffer, size, _TRUNCATE, format, args); + va_end(args); + return result; +} +# define FMT_SNPRINTF fmt_snprintf +#endif // _MSC_VER + +// A portable thread-safe version of strerror. +// Sets buffer to point to a string describing the error code. +// This can be either a pointer to a string stored in buffer, +// or a pointer to some static immutable string. +// Returns one of the following values: +// 0 - success +// ERANGE - buffer is not large enough to store the error message +// other - failure +// Buffer should be at least of size 1. +inline int safe_strerror(int error_code, char*& buffer, + size_t buffer_size) FMT_NOEXCEPT { + FMT_ASSERT(buffer != nullptr && buffer_size != 0, "invalid buffer"); + + class dispatcher { + private: + int error_code_; + char*& buffer_; + size_t buffer_size_; + + // A noop assignment operator to avoid bogus warnings. + void operator=(const dispatcher&) {} + + // Handle the result of XSI-compliant version of strerror_r. + int handle(int result) { + // glibc versions before 2.13 return result in errno. + return result == -1 ? errno : result; + } + + // Handle the result of GNU-specific version of strerror_r. + FMT_MAYBE_UNUSED + int handle(char* message) { + // If the buffer is full then the message is probably truncated. + if (message == buffer_ && strlen(buffer_) == buffer_size_ - 1) + return ERANGE; + buffer_ = message; + return 0; + } + + // Handle the case when strerror_r is not available. + FMT_MAYBE_UNUSED + int handle(detail::null<>) { + return fallback(strerror_s(buffer_, buffer_size_, error_code_)); + } + + // Fallback to strerror_s when strerror_r is not available. + FMT_MAYBE_UNUSED + int fallback(int result) { + // If the buffer is full then the message is probably truncated. + return result == 0 && strlen(buffer_) == buffer_size_ - 1 ? ERANGE + : result; + } + +#if !FMT_MSC_VER + // Fallback to strerror if strerror_r and strerror_s are not available. + int fallback(detail::null<>) { + errno = 0; + buffer_ = strerror(error_code_); + return errno; + } +#endif + + public: + dispatcher(int err_code, char*& buf, size_t buf_size) + : error_code_(err_code), buffer_(buf), buffer_size_(buf_size) {} + + int run() { return handle(strerror_r(error_code_, buffer_, buffer_size_)); } + }; + return dispatcher(error_code, buffer, buffer_size).run(); +} + +FMT_FUNC void format_error_code(detail::buffer<char>& out, int error_code, + string_view message) FMT_NOEXCEPT { + // Report error code making sure that the output fits into + // inline_buffer_size to avoid dynamic memory allocation and potential + // bad_alloc. + out.try_resize(0); + static const char SEP[] = ": "; + static const char ERROR_STR[] = "error "; + // Subtract 2 to account for terminating null characters in SEP and ERROR_STR. + size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2; + auto abs_value = static_cast<uint32_or_64_or_128_t<int>>(error_code); + if (detail::is_negative(error_code)) { + abs_value = 0 - abs_value; + ++error_code_size; + } + error_code_size += detail::to_unsigned(detail::count_digits(abs_value)); + auto it = buffer_appender<char>(out); + if (message.size() <= inline_buffer_size - error_code_size) + format_to(it, "{}{}", message, SEP); + format_to(it, "{}{}", ERROR_STR, error_code); + assert(out.size() <= inline_buffer_size); +} + +FMT_FUNC void report_error(format_func func, int error_code, + string_view message) FMT_NOEXCEPT { + memory_buffer full_message; + func(full_message, error_code, message); + // Don't use fwrite_fully because the latter may throw. + (void)std::fwrite(full_message.data(), full_message.size(), 1, stderr); + std::fputc('\n', stderr); +} + +// A wrapper around fwrite that throws on error. +inline void fwrite_fully(const void* ptr, size_t size, size_t count, + FILE* stream) { + size_t written = std::fwrite(ptr, size, count, stream); + if (written < count) FMT_THROW(system_error(errno, "cannot write to file")); +} +} // namespace detail + +#if !defined(FMT_STATIC_THOUSANDS_SEPARATOR) +namespace detail { + +template <typename Locale> +locale_ref::locale_ref(const Locale& loc) : locale_(&loc) { + static_assert(std::is_same<Locale, std::locale>::value, ""); +} + +template <typename Locale> Locale locale_ref::get() const { + static_assert(std::is_same<Locale, std::locale>::value, ""); + return locale_ ? *static_cast<const std::locale*>(locale_) : std::locale(); +} + +template <typename Char> FMT_FUNC std::string grouping_impl(locale_ref loc) { + return std::use_facet<std::numpunct<Char>>(loc.get<std::locale>()).grouping(); +} +template <typename Char> FMT_FUNC Char thousands_sep_impl(locale_ref loc) { + return std::use_facet<std::numpunct<Char>>(loc.get<std::locale>()) + .thousands_sep(); +} +template <typename Char> FMT_FUNC Char decimal_point_impl(locale_ref loc) { + return std::use_facet<std::numpunct<Char>>(loc.get<std::locale>()) + .decimal_point(); +} +} // namespace detail +#else +template <typename Char> +FMT_FUNC std::string detail::grouping_impl(locale_ref) { + return "\03"; +} +template <typename Char> FMT_FUNC Char detail::thousands_sep_impl(locale_ref) { + return FMT_STATIC_THOUSANDS_SEPARATOR; +} +template <typename Char> FMT_FUNC Char detail::decimal_point_impl(locale_ref) { + return '.'; +} +#endif + +FMT_API FMT_FUNC format_error::~format_error() FMT_NOEXCEPT = default; +FMT_API FMT_FUNC system_error::~system_error() FMT_NOEXCEPT = default; + +FMT_FUNC void system_error::init(int err_code, string_view format_str, + format_args args) { + error_code_ = err_code; + memory_buffer buffer; + format_system_error(buffer, err_code, vformat(format_str, args)); + std::runtime_error& base = *this; + base = std::runtime_error(to_string(buffer)); +} + +namespace detail { + +template <> FMT_FUNC int count_digits<4>(detail::fallback_uintptr n) { + // fallback_uintptr is always stored in little endian. + int i = static_cast<int>(sizeof(void*)) - 1; + while (i > 0 && n.value[i] == 0) --i; + auto char_digits = std::numeric_limits<unsigned char>::digits / 4; + return i >= 0 ? i * char_digits + count_digits<4, unsigned>(n.value[i]) : 1; +} + +template <typename T> +const typename basic_data<T>::digit_pair basic_data<T>::digits[] = { + {'0', '0'}, {'0', '1'}, {'0', '2'}, {'0', '3'}, {'0', '4'}, {'0', '5'}, + {'0', '6'}, {'0', '7'}, {'0', '8'}, {'0', '9'}, {'1', '0'}, {'1', '1'}, + {'1', '2'}, {'1', '3'}, {'1', '4'}, {'1', '5'}, {'1', '6'}, {'1', '7'}, + {'1', '8'}, {'1', '9'}, {'2', '0'}, {'2', '1'}, {'2', '2'}, {'2', '3'}, + {'2', '4'}, {'2', '5'}, {'2', '6'}, {'2', '7'}, {'2', '8'}, {'2', '9'}, + {'3', '0'}, {'3', '1'}, {'3', '2'}, {'3', '3'}, {'3', '4'}, {'3', '5'}, + {'3', '6'}, {'3', '7'}, {'3', '8'}, {'3', '9'}, {'4', '0'}, {'4', '1'}, + {'4', '2'}, {'4', '3'}, {'4', '4'}, {'4', '5'}, {'4', '6'}, {'4', '7'}, + {'4', '8'}, {'4', '9'}, {'5', '0'}, {'5', '1'}, {'5', '2'}, {'5', '3'}, + {'5', '4'}, {'5', '5'}, {'5', '6'}, {'5', '7'}, {'5', '8'}, {'5', '9'}, + {'6', '0'}, {'6', '1'}, {'6', '2'}, {'6', '3'}, {'6', '4'}, {'6', '5'}, + {'6', '6'}, {'6', '7'}, {'6', '8'}, {'6', '9'}, {'7', '0'}, {'7', '1'}, + {'7', '2'}, {'7', '3'}, {'7', '4'}, {'7', '5'}, {'7', '6'}, {'7', '7'}, + {'7', '8'}, {'7', '9'}, {'8', '0'}, {'8', '1'}, {'8', '2'}, {'8', '3'}, + {'8', '4'}, {'8', '5'}, {'8', '6'}, {'8', '7'}, {'8', '8'}, {'8', '9'}, + {'9', '0'}, {'9', '1'}, {'9', '2'}, {'9', '3'}, {'9', '4'}, {'9', '5'}, + {'9', '6'}, {'9', '7'}, {'9', '8'}, {'9', '9'}}; + +template <typename T> +const char basic_data<T>::hex_digits[] = "0123456789abcdef"; + +#define FMT_POWERS_OF_10(factor) \ + factor * 10, (factor)*100, (factor)*1000, (factor)*10000, (factor)*100000, \ + (factor)*1000000, (factor)*10000000, (factor)*100000000, \ + (factor)*1000000000 + +template <typename T> +const uint64_t basic_data<T>::powers_of_10_64[] = { + 1, FMT_POWERS_OF_10(1), FMT_POWERS_OF_10(1000000000ULL), + 10000000000000000000ULL}; + +template <typename T> +const uint32_t basic_data<T>::zero_or_powers_of_10_32[] = {0, + FMT_POWERS_OF_10(1)}; +template <typename T> +const uint64_t basic_data<T>::zero_or_powers_of_10_64[] = { + 0, FMT_POWERS_OF_10(1), FMT_POWERS_OF_10(1000000000ULL), + 10000000000000000000ULL}; + +template <typename T> +const uint32_t basic_data<T>::zero_or_powers_of_10_32_new[] = { + 0, 0, FMT_POWERS_OF_10(1)}; + +template <typename T> +const uint64_t basic_data<T>::zero_or_powers_of_10_64_new[] = { + 0, 0, FMT_POWERS_OF_10(1), FMT_POWERS_OF_10(1000000000ULL), + 10000000000000000000ULL}; + +// Normalized 64-bit significands of pow(10, k), for k = -348, -340, ..., 340. +// These are generated by support/compute-powers.py. +template <typename T> +const uint64_t basic_data<T>::grisu_pow10_significands[] = { + 0xfa8fd5a0081c0288, 0xbaaee17fa23ebf76, 0x8b16fb203055ac76, + 0xcf42894a5dce35ea, 0x9a6bb0aa55653b2d, 0xe61acf033d1a45df, + 0xab70fe17c79ac6ca, 0xff77b1fcbebcdc4f, 0xbe5691ef416bd60c, + 0x8dd01fad907ffc3c, 0xd3515c2831559a83, 0x9d71ac8fada6c9b5, + 0xea9c227723ee8bcb, 0xaecc49914078536d, 0x823c12795db6ce57, + 0xc21094364dfb5637, 0x9096ea6f3848984f, 0xd77485cb25823ac7, + 0xa086cfcd97bf97f4, 0xef340a98172aace5, 0xb23867fb2a35b28e, + 0x84c8d4dfd2c63f3b, 0xc5dd44271ad3cdba, 0x936b9fcebb25c996, + 0xdbac6c247d62a584, 0xa3ab66580d5fdaf6, 0xf3e2f893dec3f126, + 0xb5b5ada8aaff80b8, 0x87625f056c7c4a8b, 0xc9bcff6034c13053, + 0x964e858c91ba2655, 0xdff9772470297ebd, 0xa6dfbd9fb8e5b88f, + 0xf8a95fcf88747d94, 0xb94470938fa89bcf, 0x8a08f0f8bf0f156b, + 0xcdb02555653131b6, 0x993fe2c6d07b7fac, 0xe45c10c42a2b3b06, + 0xaa242499697392d3, 0xfd87b5f28300ca0e, 0xbce5086492111aeb, + 0x8cbccc096f5088cc, 0xd1b71758e219652c, 0x9c40000000000000, + 0xe8d4a51000000000, 0xad78ebc5ac620000, 0x813f3978f8940984, + 0xc097ce7bc90715b3, 0x8f7e32ce7bea5c70, 0xd5d238a4abe98068, + 0x9f4f2726179a2245, 0xed63a231d4c4fb27, 0xb0de65388cc8ada8, + 0x83c7088e1aab65db, 0xc45d1df942711d9a, 0x924d692ca61be758, + 0xda01ee641a708dea, 0xa26da3999aef774a, 0xf209787bb47d6b85, + 0xb454e4a179dd1877, 0x865b86925b9bc5c2, 0xc83553c5c8965d3d, + 0x952ab45cfa97a0b3, 0xde469fbd99a05fe3, 0xa59bc234db398c25, + 0xf6c69a72a3989f5c, 0xb7dcbf5354e9bece, 0x88fcf317f22241e2, + 0xcc20ce9bd35c78a5, 0x98165af37b2153df, 0xe2a0b5dc971f303a, + 0xa8d9d1535ce3b396, 0xfb9b7cd9a4a7443c, 0xbb764c4ca7a44410, + 0x8bab8eefb6409c1a, 0xd01fef10a657842c, 0x9b10a4e5e9913129, + 0xe7109bfba19c0c9d, 0xac2820d9623bf429, 0x80444b5e7aa7cf85, + 0xbf21e44003acdd2d, 0x8e679c2f5e44ff8f, 0xd433179d9c8cb841, + 0x9e19db92b4e31ba9, 0xeb96bf6ebadf77d9, 0xaf87023b9bf0ee6b, +}; + +// Binary exponents of pow(10, k), for k = -348, -340, ..., 340, corresponding +// to significands above. +template <typename T> +const int16_t basic_data<T>::grisu_pow10_exponents[] = { + -1220, -1193, -1166, -1140, -1113, -1087, -1060, -1034, -1007, -980, -954, + -927, -901, -874, -847, -821, -794, -768, -741, -715, -688, -661, + -635, -608, -582, -555, -529, -502, -475, -449, -422, -396, -369, + -343, -316, -289, -263, -236, -210, -183, -157, -130, -103, -77, + -50, -24, 3, 30, 56, 83, 109, 136, 162, 189, 216, + 242, 269, 295, 322, 348, 375, 402, 428, 455, 481, 508, + 534, 561, 588, 614, 641, 667, 694, 720, 747, 774, 800, + 827, 853, 880, 907, 933, 960, 986, 1013, 1039, 1066}; + +template <typename T> +const divtest_table_entry<uint32_t> basic_data<T>::divtest_table_for_pow5_32[] = + {{0x00000001, 0xffffffff}, {0xcccccccd, 0x33333333}, + {0xc28f5c29, 0x0a3d70a3}, {0x26e978d5, 0x020c49ba}, + {0x3afb7e91, 0x0068db8b}, {0x0bcbe61d, 0x0014f8b5}, + {0x68c26139, 0x000431bd}, {0xae8d46a5, 0x0000d6bf}, + {0x22e90e21, 0x00002af3}, {0x3a2e9c6d, 0x00000897}, + {0x3ed61f49, 0x000001b7}}; + +template <typename T> +const divtest_table_entry<uint64_t> basic_data<T>::divtest_table_for_pow5_64[] = + {{0x0000000000000001, 0xffffffffffffffff}, + {0xcccccccccccccccd, 0x3333333333333333}, + {0x8f5c28f5c28f5c29, 0x0a3d70a3d70a3d70}, + {0x1cac083126e978d5, 0x020c49ba5e353f7c}, + {0xd288ce703afb7e91, 0x0068db8bac710cb2}, + {0x5d4e8fb00bcbe61d, 0x0014f8b588e368f0}, + {0x790fb65668c26139, 0x000431bde82d7b63}, + {0xe5032477ae8d46a5, 0x0000d6bf94d5e57a}, + {0xc767074b22e90e21, 0x00002af31dc46118}, + {0x8e47ce423a2e9c6d, 0x0000089705f4136b}, + {0x4fa7f60d3ed61f49, 0x000001b7cdfd9d7b}, + {0x0fee64690c913975, 0x00000057f5ff85e5}, + {0x3662e0e1cf503eb1, 0x000000119799812d}, + {0xa47a2cf9f6433fbd, 0x0000000384b84d09}, + {0x54186f653140a659, 0x00000000b424dc35}, + {0x7738164770402145, 0x0000000024075f3d}, + {0xe4a4d1417cd9a041, 0x000000000734aca5}, + {0xc75429d9e5c5200d, 0x000000000170ef54}, + {0xc1773b91fac10669, 0x000000000049c977}, + {0x26b172506559ce15, 0x00000000000ec1e4}, + {0xd489e3a9addec2d1, 0x000000000002f394}, + {0x90e860bb892c8d5d, 0x000000000000971d}, + {0x502e79bf1b6f4f79, 0x0000000000001e39}, + {0xdcd618596be30fe5, 0x000000000000060b}}; + +template <typename T> +const uint64_t basic_data<T>::dragonbox_pow10_significands_64[] = { + 0x81ceb32c4b43fcf5, 0xa2425ff75e14fc32, 0xcad2f7f5359a3b3f, + 0xfd87b5f28300ca0e, 0x9e74d1b791e07e49, 0xc612062576589ddb, + 0xf79687aed3eec552, 0x9abe14cd44753b53, 0xc16d9a0095928a28, + 0xf1c90080baf72cb2, 0x971da05074da7bef, 0xbce5086492111aeb, + 0xec1e4a7db69561a6, 0x9392ee8e921d5d08, 0xb877aa3236a4b44a, + 0xe69594bec44de15c, 0x901d7cf73ab0acda, 0xb424dc35095cd810, + 0xe12e13424bb40e14, 0x8cbccc096f5088cc, 0xafebff0bcb24aaff, + 0xdbe6fecebdedd5bf, 0x89705f4136b4a598, 0xabcc77118461cefd, + 0xd6bf94d5e57a42bd, 0x8637bd05af6c69b6, 0xa7c5ac471b478424, + 0xd1b71758e219652c, 0x83126e978d4fdf3c, 0xa3d70a3d70a3d70b, + 0xcccccccccccccccd, 0x8000000000000000, 0xa000000000000000, + 0xc800000000000000, 0xfa00000000000000, 0x9c40000000000000, + 0xc350000000000000, 0xf424000000000000, 0x9896800000000000, + 0xbebc200000000000, 0xee6b280000000000, 0x9502f90000000000, + 0xba43b74000000000, 0xe8d4a51000000000, 0x9184e72a00000000, + 0xb5e620f480000000, 0xe35fa931a0000000, 0x8e1bc9bf04000000, + 0xb1a2bc2ec5000000, 0xde0b6b3a76400000, 0x8ac7230489e80000, + 0xad78ebc5ac620000, 0xd8d726b7177a8000, 0x878678326eac9000, + 0xa968163f0a57b400, 0xd3c21bcecceda100, 0x84595161401484a0, + 0xa56fa5b99019a5c8, 0xcecb8f27f4200f3a, 0x813f3978f8940984, + 0xa18f07d736b90be5, 0xc9f2c9cd04674ede, 0xfc6f7c4045812296, + 0x9dc5ada82b70b59d, 0xc5371912364ce305, 0xf684df56c3e01bc6, + 0x9a130b963a6c115c, 0xc097ce7bc90715b3, 0xf0bdc21abb48db20, + 0x96769950b50d88f4, 0xbc143fa4e250eb31, 0xeb194f8e1ae525fd, + 0x92efd1b8d0cf37be, 0xb7abc627050305ad, 0xe596b7b0c643c719, + 0x8f7e32ce7bea5c6f, 0xb35dbf821ae4f38b, 0xe0352f62a19e306e}; + +template <typename T> +const uint128_wrapper basic_data<T>::dragonbox_pow10_significands_128[] = { +#if FMT_USE_FULL_CACHE_DRAGONBOX + {0xff77b1fcbebcdc4f, 0x25e8e89c13bb0f7b}, + {0x9faacf3df73609b1, 0x77b191618c54e9ad}, + {0xc795830d75038c1d, 0xd59df5b9ef6a2418}, + {0xf97ae3d0d2446f25, 0x4b0573286b44ad1e}, + {0x9becce62836ac577, 0x4ee367f9430aec33}, + {0xc2e801fb244576d5, 0x229c41f793cda740}, + {0xf3a20279ed56d48a, 0x6b43527578c11110}, + {0x9845418c345644d6, 0x830a13896b78aaaa}, + {0xbe5691ef416bd60c, 0x23cc986bc656d554}, + {0xedec366b11c6cb8f, 0x2cbfbe86b7ec8aa9}, + {0x94b3a202eb1c3f39, 0x7bf7d71432f3d6aa}, + {0xb9e08a83a5e34f07, 0xdaf5ccd93fb0cc54}, + {0xe858ad248f5c22c9, 0xd1b3400f8f9cff69}, + {0x91376c36d99995be, 0x23100809b9c21fa2}, + {0xb58547448ffffb2d, 0xabd40a0c2832a78b}, + {0xe2e69915b3fff9f9, 0x16c90c8f323f516d}, + {0x8dd01fad907ffc3b, 0xae3da7d97f6792e4}, + {0xb1442798f49ffb4a, 0x99cd11cfdf41779d}, + {0xdd95317f31c7fa1d, 0x40405643d711d584}, + {0x8a7d3eef7f1cfc52, 0x482835ea666b2573}, + {0xad1c8eab5ee43b66, 0xda3243650005eed0}, + {0xd863b256369d4a40, 0x90bed43e40076a83}, + {0x873e4f75e2224e68, 0x5a7744a6e804a292}, + {0xa90de3535aaae202, 0x711515d0a205cb37}, + {0xd3515c2831559a83, 0x0d5a5b44ca873e04}, + {0x8412d9991ed58091, 0xe858790afe9486c3}, + {0xa5178fff668ae0b6, 0x626e974dbe39a873}, + {0xce5d73ff402d98e3, 0xfb0a3d212dc81290}, + {0x80fa687f881c7f8e, 0x7ce66634bc9d0b9a}, + {0xa139029f6a239f72, 0x1c1fffc1ebc44e81}, + {0xc987434744ac874e, 0xa327ffb266b56221}, + {0xfbe9141915d7a922, 0x4bf1ff9f0062baa9}, + {0x9d71ac8fada6c9b5, 0x6f773fc3603db4aa}, + {0xc4ce17b399107c22, 0xcb550fb4384d21d4}, + {0xf6019da07f549b2b, 0x7e2a53a146606a49}, + {0x99c102844f94e0fb, 0x2eda7444cbfc426e}, + {0xc0314325637a1939, 0xfa911155fefb5309}, + {0xf03d93eebc589f88, 0x793555ab7eba27cb}, + {0x96267c7535b763b5, 0x4bc1558b2f3458df}, + {0xbbb01b9283253ca2, 0x9eb1aaedfb016f17}, + {0xea9c227723ee8bcb, 0x465e15a979c1cadd}, + {0x92a1958a7675175f, 0x0bfacd89ec191eca}, + {0xb749faed14125d36, 0xcef980ec671f667c}, + {0xe51c79a85916f484, 0x82b7e12780e7401b}, + {0x8f31cc0937ae58d2, 0xd1b2ecb8b0908811}, + {0xb2fe3f0b8599ef07, 0x861fa7e6dcb4aa16}, + {0xdfbdcece67006ac9, 0x67a791e093e1d49b}, + {0x8bd6a141006042bd, 0xe0c8bb2c5c6d24e1}, + {0xaecc49914078536d, 0x58fae9f773886e19}, + {0xda7f5bf590966848, 0xaf39a475506a899f}, + {0x888f99797a5e012d, 0x6d8406c952429604}, + {0xaab37fd7d8f58178, 0xc8e5087ba6d33b84}, + {0xd5605fcdcf32e1d6, 0xfb1e4a9a90880a65}, + {0x855c3be0a17fcd26, 0x5cf2eea09a550680}, + {0xa6b34ad8c9dfc06f, 0xf42faa48c0ea481f}, + {0xd0601d8efc57b08b, 0xf13b94daf124da27}, + {0x823c12795db6ce57, 0x76c53d08d6b70859}, + {0xa2cb1717b52481ed, 0x54768c4b0c64ca6f}, + {0xcb7ddcdda26da268, 0xa9942f5dcf7dfd0a}, + {0xfe5d54150b090b02, 0xd3f93b35435d7c4d}, + {0x9efa548d26e5a6e1, 0xc47bc5014a1a6db0}, + {0xc6b8e9b0709f109a, 0x359ab6419ca1091c}, + {0xf867241c8cc6d4c0, 0xc30163d203c94b63}, + {0x9b407691d7fc44f8, 0x79e0de63425dcf1e}, + {0xc21094364dfb5636, 0x985915fc12f542e5}, + {0xf294b943e17a2bc4, 0x3e6f5b7b17b2939e}, + {0x979cf3ca6cec5b5a, 0xa705992ceecf9c43}, + {0xbd8430bd08277231, 0x50c6ff782a838354}, + {0xece53cec4a314ebd, 0xa4f8bf5635246429}, + {0x940f4613ae5ed136, 0x871b7795e136be9a}, + {0xb913179899f68584, 0x28e2557b59846e40}, + {0xe757dd7ec07426e5, 0x331aeada2fe589d0}, + {0x9096ea6f3848984f, 0x3ff0d2c85def7622}, + {0xb4bca50b065abe63, 0x0fed077a756b53aa}, + {0xe1ebce4dc7f16dfb, 0xd3e8495912c62895}, + {0x8d3360f09cf6e4bd, 0x64712dd7abbbd95d}, + {0xb080392cc4349dec, 0xbd8d794d96aacfb4}, + {0xdca04777f541c567, 0xecf0d7a0fc5583a1}, + {0x89e42caaf9491b60, 0xf41686c49db57245}, + {0xac5d37d5b79b6239, 0x311c2875c522ced6}, + {0xd77485cb25823ac7, 0x7d633293366b828c}, + {0x86a8d39ef77164bc, 0xae5dff9c02033198}, + {0xa8530886b54dbdeb, 0xd9f57f830283fdfd}, + {0xd267caa862a12d66, 0xd072df63c324fd7c}, + {0x8380dea93da4bc60, 0x4247cb9e59f71e6e}, + {0xa46116538d0deb78, 0x52d9be85f074e609}, + {0xcd795be870516656, 0x67902e276c921f8c}, + {0x806bd9714632dff6, 0x00ba1cd8a3db53b7}, + {0xa086cfcd97bf97f3, 0x80e8a40eccd228a5}, + {0xc8a883c0fdaf7df0, 0x6122cd128006b2ce}, + {0xfad2a4b13d1b5d6c, 0x796b805720085f82}, + {0x9cc3a6eec6311a63, 0xcbe3303674053bb1}, + {0xc3f490aa77bd60fc, 0xbedbfc4411068a9d}, + 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0xddf8e7d60ed1219e}, + {0x93e1ab8252f33b45, 0xcabb90e5c942b503}, + {0xb8da1662e7b00a17, 0x3d6a751f3b936243}, + {0xe7109bfba19c0c9d, 0x0cc512670a783ad4}, + {0x906a617d450187e2, 0x27fb2b80668b24c5}, + {0xb484f9dc9641e9da, 0xb1f9f660802dedf6}, + {0xe1a63853bbd26451, 0x5e7873f8a0396973}, + {0x8d07e33455637eb2, 0xdb0b487b6423e1e8}, + {0xb049dc016abc5e5f, 0x91ce1a9a3d2cda62}, + {0xdc5c5301c56b75f7, 0x7641a140cc7810fb}, + {0x89b9b3e11b6329ba, 0xa9e904c87fcb0a9d}, + {0xac2820d9623bf429, 0x546345fa9fbdcd44}, + {0xd732290fbacaf133, 0xa97c177947ad4095}, + {0x867f59a9d4bed6c0, 0x49ed8eabcccc485d}, + {0xa81f301449ee8c70, 0x5c68f256bfff5a74}, + {0xd226fc195c6a2f8c, 0x73832eec6fff3111}, + {0x83585d8fd9c25db7, 0xc831fd53c5ff7eab}, + {0xa42e74f3d032f525, 0xba3e7ca8b77f5e55}, + {0xcd3a1230c43fb26f, 0x28ce1bd2e55f35eb}, + {0x80444b5e7aa7cf85, 0x7980d163cf5b81b3}, + {0xa0555e361951c366, 0xd7e105bcc332621f}, + {0xc86ab5c39fa63440, 0x8dd9472bf3fefaa7}, + {0xfa856334878fc150, 0xb14f98f6f0feb951}, + {0x9c935e00d4b9d8d2, 0x6ed1bf9a569f33d3}, + {0xc3b8358109e84f07, 0x0a862f80ec4700c8}, + {0xf4a642e14c6262c8, 0xcd27bb612758c0fa}, + {0x98e7e9cccfbd7dbd, 0x8038d51cb897789c}, + {0xbf21e44003acdd2c, 0xe0470a63e6bd56c3}, + {0xeeea5d5004981478, 0x1858ccfce06cac74}, + {0x95527a5202df0ccb, 0x0f37801e0c43ebc8}, + {0xbaa718e68396cffd, 0xd30560258f54e6ba}, + {0xe950df20247c83fd, 0x47c6b82ef32a2069}, + {0x91d28b7416cdd27e, 0x4cdc331d57fa5441}, + {0xb6472e511c81471d, 0xe0133fe4adf8e952}, + {0xe3d8f9e563a198e5, 0x58180fddd97723a6}, + {0x8e679c2f5e44ff8f, 0x570f09eaa7ea7648}, + {0xb201833b35d63f73, 0x2cd2cc6551e513da}, + {0xde81e40a034bcf4f, 0xf8077f7ea65e58d1}, + {0x8b112e86420f6191, 0xfb04afaf27faf782}, + {0xadd57a27d29339f6, 0x79c5db9af1f9b563}, + {0xd94ad8b1c7380874, 0x18375281ae7822bc}, + {0x87cec76f1c830548, 0x8f2293910d0b15b5}, + {0xa9c2794ae3a3c69a, 0xb2eb3875504ddb22}, + {0xd433179d9c8cb841, 0x5fa60692a46151eb}, + {0x849feec281d7f328, 0xdbc7c41ba6bcd333}, + {0xa5c7ea73224deff3, 0x12b9b522906c0800}, + {0xcf39e50feae16bef, 0xd768226b34870a00}, + {0x81842f29f2cce375, 0xe6a1158300d46640}, + {0xa1e53af46f801c53, 0x60495ae3c1097fd0}, + {0xca5e89b18b602368, 0x385bb19cb14bdfc4}, + {0xfcf62c1dee382c42, 0x46729e03dd9ed7b5}, + {0x9e19db92b4e31ba9, 0x6c07a2c26a8346d1}, + {0xc5a05277621be293, 0xc7098b7305241885}, + {0xf70867153aa2db38, 0xb8cbee4fc66d1ea7} +#else + {0xff77b1fcbebcdc4f, 0x25e8e89c13bb0f7b}, + {0xce5d73ff402d98e3, 0xfb0a3d212dc81290}, + {0xa6b34ad8c9dfc06f, 0xf42faa48c0ea481f}, + {0x86a8d39ef77164bc, 0xae5dff9c02033198}, + {0xd98ddaee19068c76, 0x3badd624dd9b0958}, + {0xafbd2350644eeacf, 0xe5d1929ef90898fb}, + {0x8df5efabc5979c8f, 0xca8d3ffa1ef463c2}, + {0xe55990879ddcaabd, 0xcc420a6a101d0516}, + {0xb94470938fa89bce, 0xf808e40e8d5b3e6a}, + {0x95a8637627989aad, 0xdde7001379a44aa9}, + {0xf1c90080baf72cb1, 0x5324c68b12dd6339}, + {0xc350000000000000, 0x0000000000000000}, + {0x9dc5ada82b70b59d, 0xf020000000000000}, + {0xfee50b7025c36a08, 0x02f236d04753d5b4}, + {0xcde6fd5e09abcf26, 0xed4c0226b55e6f86}, + {0xa6539930bf6bff45, 0x84db8346b786151c}, + {0x865b86925b9bc5c2, 0x0b8a2392ba45a9b2}, + {0xd910f7ff28069da4, 0x1b2ba1518094da04}, + {0xaf58416654a6babb, 0x387ac8d1970027b2}, + {0x8da471a9de737e24, 0x5ceaecfed289e5d2}, + {0xe4d5e82392a40515, 0x0fabaf3feaa5334a}, + {0xb8da1662e7b00a17, 0x3d6a751f3b936243}, + {0x95527a5202df0ccb, 0x0f37801e0c43ebc8} +#endif +}; + +#if !FMT_USE_FULL_CACHE_DRAGONBOX +template <typename T> +const uint64_t basic_data<T>::powers_of_5_64[] = { + 0x0000000000000001, 0x0000000000000005, 0x0000000000000019, + 0x000000000000007d, 0x0000000000000271, 0x0000000000000c35, + 0x0000000000003d09, 0x000000000001312d, 0x000000000005f5e1, + 0x00000000001dcd65, 0x00000000009502f9, 0x0000000002e90edd, + 0x000000000e8d4a51, 0x0000000048c27395, 0x000000016bcc41e9, + 0x000000071afd498d, 0x0000002386f26fc1, 0x000000b1a2bc2ec5, + 0x000003782dace9d9, 0x00001158e460913d, 0x000056bc75e2d631, + 0x0001b1ae4d6e2ef5, 0x000878678326eac9, 0x002a5a058fc295ed, + 0x00d3c21bcecceda1, 0x0422ca8b0a00a425, 0x14adf4b7320334b9}; + +template <typename T> +const uint32_t basic_data<T>::dragonbox_pow10_recovery_errors[] = { + 0x50001400, 0x54044100, 0x54014555, 0x55954415, 0x54115555, 0x00000001, + 0x50000000, 0x00104000, 0x54010004, 0x05004001, 0x55555544, 0x41545555, + 0x54040551, 0x15445545, 0x51555514, 0x10000015, 0x00101100, 0x01100015, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x04450514, 0x45414110, + 0x55555145, 0x50544050, 0x15040155, 0x11054140, 0x50111514, 0x11451454, + 0x00400541, 0x00000000, 0x55555450, 0x10056551, 0x10054011, 0x55551014, + 0x69514555, 0x05151109, 0x00155555}; +#endif + +template <typename T> +const char basic_data<T>::foreground_color[] = "\x1b[38;2;"; +template <typename T> +const char basic_data<T>::background_color[] = "\x1b[48;2;"; +template <typename T> const char basic_data<T>::reset_color[] = "\x1b[0m"; +template <typename T> const wchar_t basic_data<T>::wreset_color[] = L"\x1b[0m"; +template <typename T> const char basic_data<T>::signs[] = {0, '-', '+', ' '}; +template <typename T> +const char basic_data<T>::left_padding_shifts[] = {31, 31, 0, 1, 0}; +template <typename T> +const char basic_data<T>::right_padding_shifts[] = {0, 31, 0, 1, 0}; + +template <typename T> struct bits { + static FMT_CONSTEXPR_DECL const int value = + static_cast<int>(sizeof(T) * std::numeric_limits<unsigned char>::digits); +}; + +class fp; +template <int SHIFT = 0> fp normalize(fp value); + +// Lower (upper) boundary is a value half way between a floating-point value +// and its predecessor (successor). Boundaries have the same exponent as the +// value so only significands are stored. +struct boundaries { + uint64_t lower; + uint64_t upper; +}; + +// A handmade floating-point number f * pow(2, e). +class fp { + private: + using significand_type = uint64_t; + + template <typename Float> + using is_supported_float = bool_constant<sizeof(Float) == sizeof(uint64_t) || + sizeof(Float) == sizeof(uint32_t)>; + + public: + significand_type f; + int e; + + // All sizes are in bits. + // Subtract 1 to account for an implicit most significant bit in the + // normalized form. + static FMT_CONSTEXPR_DECL const int double_significand_size = + std::numeric_limits<double>::digits - 1; + static FMT_CONSTEXPR_DECL const uint64_t implicit_bit = + 1ULL << double_significand_size; + static FMT_CONSTEXPR_DECL const int significand_size = + bits<significand_type>::value; + + fp() : f(0), e(0) {} + fp(uint64_t f_val, int e_val) : f(f_val), e(e_val) {} + + // Constructs fp from an IEEE754 double. It is a template to prevent compile + // errors on platforms where double is not IEEE754. + template <typename Double> explicit fp(Double d) { assign(d); } + + // Assigns d to this and return true iff predecessor is closer than successor. + template <typename Float, FMT_ENABLE_IF(is_supported_float<Float>::value)> + bool assign(Float d) { + // Assume float is in the format [sign][exponent][significand]. + using limits = std::numeric_limits<Float>; + const int float_significand_size = limits::digits - 1; + const int exponent_size = + bits<Float>::value - float_significand_size - 1; // -1 for sign + const uint64_t float_implicit_bit = 1ULL << float_significand_size; + const uint64_t significand_mask = float_implicit_bit - 1; + const uint64_t exponent_mask = (~0ULL >> 1) & ~significand_mask; + const int exponent_bias = (1 << exponent_size) - limits::max_exponent - 1; + constexpr bool is_double = sizeof(Float) == sizeof(uint64_t); + auto u = bit_cast<conditional_t<is_double, uint64_t, uint32_t>>(d); + f = u & significand_mask; + int biased_e = + static_cast<int>((u & exponent_mask) >> float_significand_size); + // Predecessor is closer if d is a normalized power of 2 (f == 0) other than + // the smallest normalized number (biased_e > 1). + bool is_predecessor_closer = f == 0 && biased_e > 1; + if (biased_e != 0) + f += float_implicit_bit; + else + biased_e = 1; // Subnormals use biased exponent 1 (min exponent). + e = biased_e - exponent_bias - float_significand_size; + return is_predecessor_closer; + } + + template <typename Float, FMT_ENABLE_IF(!is_supported_float<Float>::value)> + bool assign(Float) { + *this = fp(); + return false; + } +}; + +// Normalizes the value converted from double and multiplied by (1 << SHIFT). +template <int SHIFT> fp normalize(fp value) { + // Handle subnormals. + const auto shifted_implicit_bit = fp::implicit_bit << SHIFT; + while ((value.f & shifted_implicit_bit) == 0) { + value.f <<= 1; + --value.e; + } + // Subtract 1 to account for hidden bit. + const auto offset = + fp::significand_size - fp::double_significand_size - SHIFT - 1; + value.f <<= offset; + value.e -= offset; + return value; +} + +inline bool operator==(fp x, fp y) { return x.f == y.f && x.e == y.e; } + +// Computes lhs * rhs / pow(2, 64) rounded to nearest with half-up tie breaking. +inline uint64_t multiply(uint64_t lhs, uint64_t rhs) { +#if FMT_USE_INT128 + auto product = static_cast<__uint128_t>(lhs) * rhs; + auto f = static_cast<uint64_t>(product >> 64); + return (static_cast<uint64_t>(product) & (1ULL << 63)) != 0 ? f + 1 : f; +#else + // Multiply 32-bit parts of significands. + uint64_t mask = (1ULL << 32) - 1; + uint64_t a = lhs >> 32, b = lhs & mask; + uint64_t c = rhs >> 32, d = rhs & mask; + uint64_t ac = a * c, bc = b * c, ad = a * d, bd = b * d; + // Compute mid 64-bit of result and round. + uint64_t mid = (bd >> 32) + (ad & mask) + (bc & mask) + (1U << 31); + return ac + (ad >> 32) + (bc >> 32) + (mid >> 32); +#endif +} + +inline fp operator*(fp x, fp y) { return {multiply(x.f, y.f), x.e + y.e + 64}; } + +// Returns a cached power of 10 `c_k = c_k.f * pow(2, c_k.e)` such that its +// (binary) exponent satisfies `min_exponent <= c_k.e <= min_exponent + 28`. +inline fp get_cached_power(int min_exponent, int& pow10_exponent) { + const int shift = 32; + const auto significand = static_cast<int64_t>(data::log10_2_significand); + int index = static_cast<int>( + ((min_exponent + fp::significand_size - 1) * (significand >> shift) + + ((int64_t(1) << shift) - 1)) // ceil + >> 32 // arithmetic shift + ); + // Decimal exponent of the first (smallest) cached power of 10. + const int first_dec_exp = -348; + // Difference between 2 consecutive decimal exponents in cached powers of 10. + const int dec_exp_step = 8; + index = (index - first_dec_exp - 1) / dec_exp_step + 1; + pow10_exponent = first_dec_exp + index * dec_exp_step; + return {data::grisu_pow10_significands[index], + data::grisu_pow10_exponents[index]}; +} + +// A simple accumulator to hold the sums of terms in bigint::square if uint128_t +// is not available. +struct accumulator { + uint64_t lower; + uint64_t upper; + + accumulator() : lower(0), upper(0) {} + explicit operator uint32_t() const { return static_cast<uint32_t>(lower); } + + void operator+=(uint64_t n) { + lower += n; + if (lower < n) ++upper; + } + void operator>>=(int shift) { + assert(shift == 32); + (void)shift; + lower = (upper << 32) | (lower >> 32); + upper >>= 32; + } +}; + +class bigint { + private: + // A bigint is stored as an array of bigits (big digits), with bigit at index + // 0 being the least significant one. + using bigit = uint32_t; + using double_bigit = uint64_t; + enum { bigits_capacity = 32 }; + basic_memory_buffer<bigit, bigits_capacity> bigits_; + int exp_; + + bigit operator[](int index) const { return bigits_[to_unsigned(index)]; } + bigit& operator[](int index) { return bigits_[to_unsigned(index)]; } + + static FMT_CONSTEXPR_DECL const int bigit_bits = bits<bigit>::value; + + friend struct formatter<bigint>; + + void subtract_bigits(int index, bigit other, bigit& borrow) { + auto result = static_cast<double_bigit>((*this)[index]) - other - borrow; + (*this)[index] = static_cast<bigit>(result); + borrow = static_cast<bigit>(result >> (bigit_bits * 2 - 1)); + } + + void remove_leading_zeros() { + int num_bigits = static_cast<int>(bigits_.size()) - 1; + while (num_bigits > 0 && (*this)[num_bigits] == 0) --num_bigits; + bigits_.resize(to_unsigned(num_bigits + 1)); + } + + // Computes *this -= other assuming aligned bigints and *this >= other. + void subtract_aligned(const bigint& other) { + FMT_ASSERT(other.exp_ >= exp_, "unaligned bigints"); + FMT_ASSERT(compare(*this, other) >= 0, ""); + bigit borrow = 0; + int i = other.exp_ - exp_; + for (size_t j = 0, n = other.bigits_.size(); j != n; ++i, ++j) + subtract_bigits(i, other.bigits_[j], borrow); + while (borrow > 0) subtract_bigits(i, 0, borrow); + remove_leading_zeros(); + } + + void multiply(uint32_t value) { + const double_bigit wide_value = value; + bigit carry = 0; + for (size_t i = 0, n = bigits_.size(); i < n; ++i) { + double_bigit result = bigits_[i] * wide_value + carry; + bigits_[i] = static_cast<bigit>(result); + carry = static_cast<bigit>(result >> bigit_bits); + } + if (carry != 0) bigits_.push_back(carry); + } + + void multiply(uint64_t value) { + const bigit mask = ~bigit(0); + const double_bigit lower = value & mask; + const double_bigit upper = value >> bigit_bits; + double_bigit carry = 0; + for (size_t i = 0, n = bigits_.size(); i < n; ++i) { + double_bigit result = bigits_[i] * lower + (carry & mask); + carry = + bigits_[i] * upper + (result >> bigit_bits) + (carry >> bigit_bits); + bigits_[i] = static_cast<bigit>(result); + } + while (carry != 0) { + bigits_.push_back(carry & mask); + carry >>= bigit_bits; + } + } + + public: + bigint() : exp_(0) {} + explicit bigint(uint64_t n) { assign(n); } + ~bigint() { assert(bigits_.capacity() <= bigits_capacity); } + + bigint(const bigint&) = delete; + void operator=(const bigint&) = delete; + + void assign(const bigint& other) { + auto size = other.bigits_.size(); + bigits_.resize(size); + auto data = other.bigits_.data(); + std::copy(data, data + size, make_checked(bigits_.data(), size)); + exp_ = other.exp_; + } + + void assign(uint64_t n) { + size_t num_bigits = 0; + do { + bigits_[num_bigits++] = n & ~bigit(0); + n >>= bigit_bits; + } while (n != 0); + bigits_.resize(num_bigits); + exp_ = 0; + } + + int num_bigits() const { return static_cast<int>(bigits_.size()) + exp_; } + + FMT_NOINLINE bigint& operator<<=(int shift) { + assert(shift >= 0); + exp_ += shift / bigit_bits; + shift %= bigit_bits; + if (shift == 0) return *this; + bigit carry = 0; + for (size_t i = 0, n = bigits_.size(); i < n; ++i) { + bigit c = bigits_[i] >> (bigit_bits - shift); + bigits_[i] = (bigits_[i] << shift) + carry; + carry = c; + } + if (carry != 0) bigits_.push_back(carry); + return *this; + } + + template <typename Int> bigint& operator*=(Int value) { + FMT_ASSERT(value > 0, ""); + multiply(uint32_or_64_or_128_t<Int>(value)); + return *this; + } + + friend int compare(const bigint& lhs, const bigint& rhs) { + int num_lhs_bigits = lhs.num_bigits(), num_rhs_bigits = rhs.num_bigits(); + if (num_lhs_bigits != num_rhs_bigits) + return num_lhs_bigits > num_rhs_bigits ? 1 : -1; + int i = static_cast<int>(lhs.bigits_.size()) - 1; + int j = static_cast<int>(rhs.bigits_.size()) - 1; + int end = i - j; + if (end < 0) end = 0; + for (; i >= end; --i, --j) { + bigit lhs_bigit = lhs[i], rhs_bigit = rhs[j]; + if (lhs_bigit != rhs_bigit) return lhs_bigit > rhs_bigit ? 1 : -1; + } + if (i != j) return i > j ? 1 : -1; + return 0; + } + + // Returns compare(lhs1 + lhs2, rhs). + friend int add_compare(const bigint& lhs1, const bigint& lhs2, + const bigint& rhs) { + int max_lhs_bigits = (std::max)(lhs1.num_bigits(), lhs2.num_bigits()); + int num_rhs_bigits = rhs.num_bigits(); + if (max_lhs_bigits + 1 < num_rhs_bigits) return -1; + if (max_lhs_bigits > num_rhs_bigits) return 1; + auto get_bigit = [](const bigint& n, int i) -> bigit { + return i >= n.exp_ && i < n.num_bigits() ? n[i - n.exp_] : 0; + }; + double_bigit borrow = 0; + int min_exp = (std::min)((std::min)(lhs1.exp_, lhs2.exp_), rhs.exp_); + for (int i = num_rhs_bigits - 1; i >= min_exp; --i) { + double_bigit sum = + static_cast<double_bigit>(get_bigit(lhs1, i)) + get_bigit(lhs2, i); + bigit rhs_bigit = get_bigit(rhs, i); + if (sum > rhs_bigit + borrow) return 1; + borrow = rhs_bigit + borrow - sum; + if (borrow > 1) return -1; + borrow <<= bigit_bits; + } + return borrow != 0 ? -1 : 0; + } + + // Assigns pow(10, exp) to this bigint. + void assign_pow10(int exp) { + assert(exp >= 0); + if (exp == 0) return assign(1); + // Find the top bit. + int bitmask = 1; + while (exp >= bitmask) bitmask <<= 1; + bitmask >>= 1; + // pow(10, exp) = pow(5, exp) * pow(2, exp). First compute pow(5, exp) by + // repeated squaring and multiplication. + assign(5); + bitmask >>= 1; + while (bitmask != 0) { + square(); + if ((exp & bitmask) != 0) *this *= 5; + bitmask >>= 1; + } + *this <<= exp; // Multiply by pow(2, exp) by shifting. + } + + void square() { + basic_memory_buffer<bigit, bigits_capacity> n(std::move(bigits_)); + int num_bigits = static_cast<int>(bigits_.size()); + int num_result_bigits = 2 * num_bigits; + bigits_.resize(to_unsigned(num_result_bigits)); + using accumulator_t = conditional_t<FMT_USE_INT128, uint128_t, accumulator>; + auto sum = accumulator_t(); + for (int bigit_index = 0; bigit_index < num_bigits; ++bigit_index) { + // Compute bigit at position bigit_index of the result by adding + // cross-product terms n[i] * n[j] such that i + j == bigit_index. + for (int i = 0, j = bigit_index; j >= 0; ++i, --j) { + // Most terms are multiplied twice which can be optimized in the future. + sum += static_cast<double_bigit>(n[i]) * n[j]; + } + (*this)[bigit_index] = static_cast<bigit>(sum); + sum >>= bits<bigit>::value; // Compute the carry. + } + // Do the same for the top half. + for (int bigit_index = num_bigits; bigit_index < num_result_bigits; + ++bigit_index) { + for (int j = num_bigits - 1, i = bigit_index - j; i < num_bigits;) + sum += static_cast<double_bigit>(n[i++]) * n[j--]; + (*this)[bigit_index] = static_cast<bigit>(sum); + sum >>= bits<bigit>::value; + } + --num_result_bigits; + remove_leading_zeros(); + exp_ *= 2; + } + + // If this bigint has a bigger exponent than other, adds trailing zero to make + // exponents equal. This simplifies some operations such as subtraction. + void align(const bigint& other) { + int exp_difference = exp_ - other.exp_; + if (exp_difference <= 0) return; + int num_bigits = static_cast<int>(bigits_.size()); + bigits_.resize(to_unsigned(num_bigits + exp_difference)); + for (int i = num_bigits - 1, j = i + exp_difference; i >= 0; --i, --j) + bigits_[j] = bigits_[i]; + std::uninitialized_fill_n(bigits_.data(), exp_difference, 0); + exp_ -= exp_difference; + } + + // Divides this bignum by divisor, assigning the remainder to this and + // returning the quotient. + int divmod_assign(const bigint& divisor) { + FMT_ASSERT(this != &divisor, ""); + if (compare(*this, divisor) < 0) return 0; + FMT_ASSERT(divisor.bigits_[divisor.bigits_.size() - 1u] != 0, ""); + align(divisor); + int quotient = 0; + do { + subtract_aligned(divisor); + ++quotient; + } while (compare(*this, divisor) >= 0); + return quotient; + } +}; + +enum class round_direction { unknown, up, down }; + +// Given the divisor (normally a power of 10), the remainder = v % divisor for +// some number v and the error, returns whether v should be rounded up, down, or +// whether the rounding direction can't be determined due to error. +// error should be less than divisor / 2. +inline round_direction get_round_direction(uint64_t divisor, uint64_t remainder, + uint64_t error) { + FMT_ASSERT(remainder < divisor, ""); // divisor - remainder won't overflow. + FMT_ASSERT(error < divisor, ""); // divisor - error won't overflow. + FMT_ASSERT(error < divisor - error, ""); // error * 2 won't overflow. + // Round down if (remainder + error) * 2 <= divisor. + if (remainder <= divisor - remainder && error * 2 <= divisor - remainder * 2) + return round_direction::down; + // Round up if (remainder - error) * 2 >= divisor. + if (remainder >= error && + remainder - error >= divisor - (remainder - error)) { + return round_direction::up; + } + return round_direction::unknown; +} + +namespace digits { +enum result { + more, // Generate more digits. + done, // Done generating digits. + error // Digit generation cancelled due to an error. +}; +} + +// Generates output using the Grisu digit-gen algorithm. +// error: the size of the region (lower, upper) outside of which numbers +// definitely do not round to value (Delta in Grisu3). +template <typename Handler> +FMT_ALWAYS_INLINE digits::result grisu_gen_digits(fp value, uint64_t error, + int& exp, Handler& handler) { + const fp one(1ULL << -value.e, value.e); + // The integral part of scaled value (p1 in Grisu) = value / one. It cannot be + // zero because it contains a product of two 64-bit numbers with MSB set (due + // to normalization) - 1, shifted right by at most 60 bits. + auto integral = static_cast<uint32_t>(value.f >> -one.e); + FMT_ASSERT(integral != 0, ""); + FMT_ASSERT(integral == value.f >> -one.e, ""); + // The fractional part of scaled value (p2 in Grisu) c = value % one. + uint64_t fractional = value.f & (one.f - 1); + exp = count_digits(integral); // kappa in Grisu. + // Divide by 10 to prevent overflow. + auto result = handler.on_start(data::powers_of_10_64[exp - 1] << -one.e, + value.f / 10, error * 10, exp); + if (result != digits::more) return result; + // Generate digits for the integral part. This can produce up to 10 digits. + do { + uint32_t digit = 0; + auto divmod_integral = [&](uint32_t divisor) { + digit = integral / divisor; + integral %= divisor; + }; + // This optimization by Milo Yip reduces the number of integer divisions by + // one per iteration. + switch (exp) { + case 10: + divmod_integral(1000000000); + break; + case 9: + divmod_integral(100000000); + break; + case 8: + divmod_integral(10000000); + break; + case 7: + divmod_integral(1000000); + break; + case 6: + divmod_integral(100000); + break; + case 5: + divmod_integral(10000); + break; + case 4: + divmod_integral(1000); + break; + case 3: + divmod_integral(100); + break; + case 2: + divmod_integral(10); + break; + case 1: + digit = integral; + integral = 0; + break; + default: + FMT_ASSERT(false, "invalid number of digits"); + } + --exp; + auto remainder = (static_cast<uint64_t>(integral) << -one.e) + fractional; + result = handler.on_digit(static_cast<char>('0' + digit), + data::powers_of_10_64[exp] << -one.e, remainder, + error, exp, true); + if (result != digits::more) return result; + } while (exp > 0); + // Generate digits for the fractional part. + for (;;) { + fractional *= 10; + error *= 10; + char digit = static_cast<char>('0' + (fractional >> -one.e)); + fractional &= one.f - 1; + --exp; + result = handler.on_digit(digit, one.f, fractional, error, exp, false); + if (result != digits::more) return result; + } +} + +// The fixed precision digit handler. +struct fixed_handler { + char* buf; + int size; + int precision; + int exp10; + bool fixed; + + digits::result on_start(uint64_t divisor, uint64_t remainder, uint64_t error, + int& exp) { + // Non-fixed formats require at least one digit and no precision adjustment. + if (!fixed) return digits::more; + // Adjust fixed precision by exponent because it is relative to decimal + // point. + precision += exp + exp10; + // Check if precision is satisfied just by leading zeros, e.g. + // format("{:.2f}", 0.001) gives "0.00" without generating any digits. + if (precision > 0) return digits::more; + if (precision < 0) return digits::done; + auto dir = get_round_direction(divisor, remainder, error); + if (dir == round_direction::unknown) return digits::error; + buf[size++] = dir == round_direction::up ? '1' : '0'; + return digits::done; + } + + digits::result on_digit(char digit, uint64_t divisor, uint64_t remainder, + uint64_t error, int, bool integral) { + FMT_ASSERT(remainder < divisor, ""); + buf[size++] = digit; + if (!integral && error >= remainder) return digits::error; + if (size < precision) return digits::more; + if (!integral) { + // Check if error * 2 < divisor with overflow prevention. + // The check is not needed for the integral part because error = 1 + // and divisor > (1 << 32) there. + if (error >= divisor || error >= divisor - error) return digits::error; + } else { + FMT_ASSERT(error == 1 && divisor > 2, ""); + } + auto dir = get_round_direction(divisor, remainder, error); + if (dir != round_direction::up) + return dir == round_direction::down ? digits::done : digits::error; + ++buf[size - 1]; + for (int i = size - 1; i > 0 && buf[i] > '9'; --i) { + buf[i] = '0'; + ++buf[i - 1]; + } + if (buf[0] > '9') { + buf[0] = '1'; + if (fixed) + buf[size++] = '0'; + else + ++exp10; + } + return digits::done; + } +}; + +// Implementation of Dragonbox algorithm: https://github.com/jk-jeon/dragonbox. +namespace dragonbox { +// Computes 128-bit result of multiplication of two 64-bit unsigned integers. +FMT_SAFEBUFFERS inline uint128_wrapper umul128(uint64_t x, + uint64_t y) FMT_NOEXCEPT { +#if FMT_USE_INT128 + return static_cast<uint128_t>(x) * static_cast<uint128_t>(y); +#elif defined(_MSC_VER) && defined(_M_X64) + uint128_wrapper result; + result.low_ = _umul128(x, y, &result.high_); + return result; +#else + const uint64_t mask = (uint64_t(1) << 32) - uint64_t(1); + + uint64_t a = x >> 32; + uint64_t b = x & mask; + uint64_t c = y >> 32; + uint64_t d = y & mask; + + uint64_t ac = a * c; + uint64_t bc = b * c; + uint64_t ad = a * d; + uint64_t bd = b * d; + + uint64_t intermediate = (bd >> 32) + (ad & mask) + (bc & mask); + + return {ac + (intermediate >> 32) + (ad >> 32) + (bc >> 32), + (intermediate << 32) + (bd & mask)}; +#endif +} + +// Computes upper 64 bits of multiplication of two 64-bit unsigned integers. +FMT_SAFEBUFFERS inline uint64_t umul128_upper64(uint64_t x, + uint64_t y) FMT_NOEXCEPT { +#if FMT_USE_INT128 + auto p = static_cast<uint128_t>(x) * static_cast<uint128_t>(y); + return static_cast<uint64_t>(p >> 64); +#elif defined(_MSC_VER) && defined(_M_X64) + return __umulh(x, y); +#else + return umul128(x, y).high(); +#endif +} + +// Computes upper 64 bits of multiplication of a 64-bit unsigned integer and a +// 128-bit unsigned integer. +FMT_SAFEBUFFERS inline uint64_t umul192_upper64(uint64_t x, uint128_wrapper y) + FMT_NOEXCEPT { + uint128_wrapper g0 = umul128(x, y.high()); + g0 += umul128_upper64(x, y.low()); + return g0.high(); +} + +// Computes upper 32 bits of multiplication of a 32-bit unsigned integer and a +// 64-bit unsigned integer. +inline uint32_t umul96_upper32(uint32_t x, uint64_t y) FMT_NOEXCEPT { + return static_cast<uint32_t>(umul128_upper64(x, y)); +} + +// Computes middle 64 bits of multiplication of a 64-bit unsigned integer and a +// 128-bit unsigned integer. +FMT_SAFEBUFFERS inline uint64_t umul192_middle64(uint64_t x, uint128_wrapper y) + FMT_NOEXCEPT { + uint64_t g01 = x * y.high(); + uint64_t g10 = umul128_upper64(x, y.low()); + return g01 + g10; +} + +// Computes lower 64 bits of multiplication of a 32-bit unsigned integer and a +// 64-bit unsigned integer. +inline uint64_t umul96_lower64(uint32_t x, uint64_t y) FMT_NOEXCEPT { + return x * y; +} + +// Computes floor(log10(pow(2, e))) for e in [-1700, 1700] using the method from +// https://fmt.dev/papers/Grisu-Exact.pdf#page=5, section 3.4. +inline int floor_log10_pow2(int e) FMT_NOEXCEPT { + FMT_ASSERT(e <= 1700 && e >= -1700, "too large exponent"); + const int shift = 22; + return (e * static_cast<int>(data::log10_2_significand >> (64 - shift))) >> + shift; +} + +// Various fast log computations. +inline int floor_log2_pow10(int e) FMT_NOEXCEPT { + FMT_ASSERT(e <= 1233 && e >= -1233, "too large exponent"); + const uint64_t log2_10_integer_part = 3; + const uint64_t log2_10_fractional_digits = 0x5269e12f346e2bf9; + const int shift_amount = 19; + return (e * static_cast<int>( + (log2_10_integer_part << shift_amount) | + (log2_10_fractional_digits >> (64 - shift_amount)))) >> + shift_amount; +} +inline int floor_log10_pow2_minus_log10_4_over_3(int e) FMT_NOEXCEPT { + FMT_ASSERT(e <= 1700 && e >= -1700, "too large exponent"); + const uint64_t log10_4_over_3_fractional_digits = 0x1ffbfc2bbc780375; + const int shift_amount = 22; + return (e * static_cast<int>(data::log10_2_significand >> + (64 - shift_amount)) - + static_cast<int>(log10_4_over_3_fractional_digits >> + (64 - shift_amount))) >> + shift_amount; +} + +// Returns true iff x is divisible by pow(2, exp). +inline bool divisible_by_power_of_2(uint32_t x, int exp) FMT_NOEXCEPT { + FMT_ASSERT(exp >= 1, ""); + FMT_ASSERT(x != 0, ""); +#ifdef FMT_BUILTIN_CTZ + return FMT_BUILTIN_CTZ(x) >= exp; +#else + return exp < num_bits<uint32_t>() && x == ((x >> exp) << exp); +#endif +} +inline bool divisible_by_power_of_2(uint64_t x, int exp) FMT_NOEXCEPT { + FMT_ASSERT(exp >= 1, ""); + FMT_ASSERT(x != 0, ""); +#ifdef FMT_BUILTIN_CTZLL + return FMT_BUILTIN_CTZLL(x) >= exp; +#else + return exp < num_bits<uint64_t>() && x == ((x >> exp) << exp); +#endif +} + +// Returns true iff x is divisible by pow(5, exp). +inline bool divisible_by_power_of_5(uint32_t x, int exp) FMT_NOEXCEPT { + FMT_ASSERT(exp <= 10, "too large exponent"); + return x * data::divtest_table_for_pow5_32[exp].mod_inv <= + data::divtest_table_for_pow5_32[exp].max_quotient; +} +inline bool divisible_by_power_of_5(uint64_t x, int exp) FMT_NOEXCEPT { + FMT_ASSERT(exp <= 23, "too large exponent"); + return x * data::divtest_table_for_pow5_64[exp].mod_inv <= + data::divtest_table_for_pow5_64[exp].max_quotient; +} + +// Replaces n by floor(n / pow(5, N)) returning true if and only if n is +// divisible by pow(5, N). +// Precondition: n <= 2 * pow(5, N + 1). +template <int N> +bool check_divisibility_and_divide_by_pow5(uint32_t& n) FMT_NOEXCEPT { + static constexpr struct { + uint32_t magic_number; + int bits_for_comparison; + uint32_t threshold; + int shift_amount; + } infos[] = {{0xcccd, 16, 0x3333, 18}, {0xa429, 8, 0x0a, 20}}; + constexpr auto info = infos[N - 1]; + n *= info.magic_number; + const uint32_t comparison_mask = (1u << info.bits_for_comparison) - 1; + bool result = (n & comparison_mask) <= info.threshold; + n >>= info.shift_amount; + return result; +} + +// Computes floor(n / pow(10, N)) for small n and N. +// Precondition: n <= pow(10, N + 1). +template <int N> uint32_t small_division_by_pow10(uint32_t n) FMT_NOEXCEPT { + static constexpr struct { + uint32_t magic_number; + int shift_amount; + uint32_t divisor_times_10; + } infos[] = {{0xcccd, 19, 100}, {0xa3d8, 22, 1000}}; + constexpr auto info = infos[N - 1]; + FMT_ASSERT(n <= info.divisor_times_10, "n is too large"); + return n * info.magic_number >> info.shift_amount; +} + +// Computes floor(n / 10^(kappa + 1)) (float) +inline uint32_t divide_by_10_to_kappa_plus_1(uint32_t n) FMT_NOEXCEPT { + return n / float_info<float>::big_divisor; +} +// Computes floor(n / 10^(kappa + 1)) (double) +inline uint64_t divide_by_10_to_kappa_plus_1(uint64_t n) FMT_NOEXCEPT { + return umul128_upper64(n, 0x83126e978d4fdf3c) >> 9; +} + +// Various subroutines using pow10 cache +template <class T> struct cache_accessor; + +template <> struct cache_accessor<float> { + using carrier_uint = float_info<float>::carrier_uint; + using cache_entry_type = uint64_t; + + static uint64_t get_cached_power(int k) FMT_NOEXCEPT { + FMT_ASSERT(k >= float_info<float>::min_k && k <= float_info<float>::max_k, + "k is out of range"); + return data::dragonbox_pow10_significands_64[k - float_info<float>::min_k]; + } + + static carrier_uint compute_mul(carrier_uint u, + const cache_entry_type& cache) FMT_NOEXCEPT { + return umul96_upper32(u, cache); + } + + static uint32_t compute_delta(const cache_entry_type& cache, + int beta_minus_1) FMT_NOEXCEPT { + return static_cast<uint32_t>(cache >> (64 - 1 - beta_minus_1)); + } + + static bool compute_mul_parity(carrier_uint two_f, + const cache_entry_type& cache, + int beta_minus_1) FMT_NOEXCEPT { + FMT_ASSERT(beta_minus_1 >= 1, ""); + FMT_ASSERT(beta_minus_1 < 64, ""); + + return ((umul96_lower64(two_f, cache) >> (64 - beta_minus_1)) & 1) != 0; + } + + static carrier_uint compute_left_endpoint_for_shorter_interval_case( + const cache_entry_type& cache, int beta_minus_1) FMT_NOEXCEPT { + return static_cast<carrier_uint>( + (cache - (cache >> (float_info<float>::significand_bits + 2))) >> + (64 - float_info<float>::significand_bits - 1 - beta_minus_1)); + } + + static carrier_uint compute_right_endpoint_for_shorter_interval_case( + const cache_entry_type& cache, int beta_minus_1) FMT_NOEXCEPT { + return static_cast<carrier_uint>( + (cache + (cache >> (float_info<float>::significand_bits + 1))) >> + (64 - float_info<float>::significand_bits - 1 - beta_minus_1)); + } + + static carrier_uint compute_round_up_for_shorter_interval_case( + const cache_entry_type& cache, int beta_minus_1) FMT_NOEXCEPT { + return (static_cast<carrier_uint>( + cache >> + (64 - float_info<float>::significand_bits - 2 - beta_minus_1)) + + 1) / + 2; + } +}; + +template <> struct cache_accessor<double> { + using carrier_uint = float_info<double>::carrier_uint; + using cache_entry_type = uint128_wrapper; + + static uint128_wrapper get_cached_power(int k) FMT_NOEXCEPT { + FMT_ASSERT(k >= float_info<double>::min_k && k <= float_info<double>::max_k, + "k is out of range"); + +#if FMT_USE_FULL_CACHE_DRAGONBOX + return data::dragonbox_pow10_significands_128[k - + float_info<double>::min_k]; +#else + static const int compression_ratio = 27; + + // Compute base index. + int cache_index = (k - float_info<double>::min_k) / compression_ratio; + int kb = cache_index * compression_ratio + float_info<double>::min_k; + int offset = k - kb; + + // Get base cache. + uint128_wrapper base_cache = + data::dragonbox_pow10_significands_128[cache_index]; + if (offset == 0) return base_cache; + + // Compute the required amount of bit-shift. + int alpha = floor_log2_pow10(kb + offset) - floor_log2_pow10(kb) - offset; + FMT_ASSERT(alpha > 0 && alpha < 64, "shifting error detected"); + + // Try to recover the real cache. + uint64_t pow5 = data::powers_of_5_64[offset]; + uint128_wrapper recovered_cache = umul128(base_cache.high(), pow5); + uint128_wrapper middle_low = + umul128(base_cache.low() - (kb < 0 ? 1u : 0u), pow5); + + recovered_cache += middle_low.high(); + + uint64_t high_to_middle = recovered_cache.high() << (64 - alpha); + uint64_t middle_to_low = recovered_cache.low() << (64 - alpha); + + recovered_cache = + uint128_wrapper{(recovered_cache.low() >> alpha) | high_to_middle, + ((middle_low.low() >> alpha) | middle_to_low)}; + + if (kb < 0) recovered_cache += 1; + + // Get error. + int error_idx = (k - float_info<double>::min_k) / 16; + uint32_t error = (data::dragonbox_pow10_recovery_errors[error_idx] >> + ((k - float_info<double>::min_k) % 16) * 2) & + 0x3; + + // Add the error back. + FMT_ASSERT(recovered_cache.low() + error >= recovered_cache.low(), ""); + return {recovered_cache.high(), recovered_cache.low() + error}; +#endif + } + + static carrier_uint compute_mul(carrier_uint u, + const cache_entry_type& cache) FMT_NOEXCEPT { + return umul192_upper64(u, cache); + } + + static uint32_t compute_delta(cache_entry_type const& cache, + int beta_minus_1) FMT_NOEXCEPT { + return static_cast<uint32_t>(cache.high() >> (64 - 1 - beta_minus_1)); + } + + static bool compute_mul_parity(carrier_uint two_f, + const cache_entry_type& cache, + int beta_minus_1) FMT_NOEXCEPT { + FMT_ASSERT(beta_minus_1 >= 1, ""); + FMT_ASSERT(beta_minus_1 < 64, ""); + + return ((umul192_middle64(two_f, cache) >> (64 - beta_minus_1)) & 1) != 0; + } + + static carrier_uint compute_left_endpoint_for_shorter_interval_case( + const cache_entry_type& cache, int beta_minus_1) FMT_NOEXCEPT { + return (cache.high() - + (cache.high() >> (float_info<double>::significand_bits + 2))) >> + (64 - float_info<double>::significand_bits - 1 - beta_minus_1); + } + + static carrier_uint compute_right_endpoint_for_shorter_interval_case( + const cache_entry_type& cache, int beta_minus_1) FMT_NOEXCEPT { + return (cache.high() + + (cache.high() >> (float_info<double>::significand_bits + 1))) >> + (64 - float_info<double>::significand_bits - 1 - beta_minus_1); + } + + static carrier_uint compute_round_up_for_shorter_interval_case( + const cache_entry_type& cache, int beta_minus_1) FMT_NOEXCEPT { + return ((cache.high() >> + (64 - float_info<double>::significand_bits - 2 - beta_minus_1)) + + 1) / + 2; + } +}; + +// Various integer checks +template <class T> +bool is_left_endpoint_integer_shorter_interval(int exponent) FMT_NOEXCEPT { + return exponent >= + float_info< + T>::case_shorter_interval_left_endpoint_lower_threshold && + exponent <= + float_info<T>::case_shorter_interval_left_endpoint_upper_threshold; +} +template <class T> +bool is_endpoint_integer(typename float_info<T>::carrier_uint two_f, + int exponent, int minus_k) FMT_NOEXCEPT { + if (exponent < float_info<T>::case_fc_pm_half_lower_threshold) return false; + // For k >= 0. + if (exponent <= float_info<T>::case_fc_pm_half_upper_threshold) return true; + // For k < 0. + if (exponent > float_info<T>::divisibility_check_by_5_threshold) return false; + return divisible_by_power_of_5(two_f, minus_k); +} + +template <class T> +bool is_center_integer(typename float_info<T>::carrier_uint two_f, int exponent, + int minus_k) FMT_NOEXCEPT { + // Exponent for 5 is negative. + if (exponent > float_info<T>::divisibility_check_by_5_threshold) return false; + if (exponent > float_info<T>::case_fc_upper_threshold) + return divisible_by_power_of_5(two_f, minus_k); + // Both exponents are nonnegative. + if (exponent >= float_info<T>::case_fc_lower_threshold) return true; + // Exponent for 2 is negative. + return divisible_by_power_of_2(two_f, minus_k - exponent + 1); +} + +// Remove trailing zeros from n and return the number of zeros removed (float) +FMT_ALWAYS_INLINE int remove_trailing_zeros(uint32_t& n) FMT_NOEXCEPT { +#ifdef FMT_BUILTIN_CTZ + int t = FMT_BUILTIN_CTZ(n); +#else + int t = ctz(n); +#endif + if (t > float_info<float>::max_trailing_zeros) + t = float_info<float>::max_trailing_zeros; + + const uint32_t mod_inv1 = 0xcccccccd; + const uint32_t max_quotient1 = 0x33333333; + const uint32_t mod_inv2 = 0xc28f5c29; + const uint32_t max_quotient2 = 0x0a3d70a3; + + int s = 0; + for (; s < t - 1; s += 2) { + if (n * mod_inv2 > max_quotient2) break; + n *= mod_inv2; + } + if (s < t && n * mod_inv1 <= max_quotient1) { + n *= mod_inv1; + ++s; + } + n >>= s; + return s; +} + +// Removes trailing zeros and returns the number of zeros removed (double) +FMT_ALWAYS_INLINE int remove_trailing_zeros(uint64_t& n) FMT_NOEXCEPT { +#ifdef FMT_BUILTIN_CTZLL + int t = FMT_BUILTIN_CTZLL(n); +#else + int t = ctzll(n); +#endif + if (t > float_info<double>::max_trailing_zeros) + t = float_info<double>::max_trailing_zeros; + // Divide by 10^8 and reduce to 32-bits + // Since ret_value.significand <= (2^64 - 1) / 1000 < 10^17, + // both of the quotient and the r should fit in 32-bits + + const uint32_t mod_inv1 = 0xcccccccd; + const uint32_t max_quotient1 = 0x33333333; + const uint64_t mod_inv8 = 0xc767074b22e90e21; + const uint64_t max_quotient8 = 0x00002af31dc46118; + + // If the number is divisible by 1'0000'0000, work with the quotient + if (t >= 8) { + auto quotient_candidate = n * mod_inv8; + + if (quotient_candidate <= max_quotient8) { + auto quotient = static_cast<uint32_t>(quotient_candidate >> 8); + + int s = 8; + for (; s < t; ++s) { + if (quotient * mod_inv1 > max_quotient1) break; + quotient *= mod_inv1; + } + quotient >>= (s - 8); + n = quotient; + return s; + } + } + + // Otherwise, work with the remainder + auto quotient = static_cast<uint32_t>(n / 100000000); + auto remainder = static_cast<uint32_t>(n - 100000000 * quotient); + + if (t == 0 || remainder * mod_inv1 > max_quotient1) { + return 0; + } + remainder *= mod_inv1; + + if (t == 1 || remainder * mod_inv1 > max_quotient1) { + n = (remainder >> 1) + quotient * 10000000ull; + return 1; + } + remainder *= mod_inv1; + + if (t == 2 || remainder * mod_inv1 > max_quotient1) { + n = (remainder >> 2) + quotient * 1000000ull; + return 2; + } + remainder *= mod_inv1; + + if (t == 3 || remainder * mod_inv1 > max_quotient1) { + n = (remainder >> 3) + quotient * 100000ull; + return 3; + } + remainder *= mod_inv1; + + if (t == 4 || remainder * mod_inv1 > max_quotient1) { + n = (remainder >> 4) + quotient * 10000ull; + return 4; + } + remainder *= mod_inv1; + + if (t == 5 || remainder * mod_inv1 > max_quotient1) { + n = (remainder >> 5) + quotient * 1000ull; + return 5; + } + remainder *= mod_inv1; + + if (t == 6 || remainder * mod_inv1 > max_quotient1) { + n = (remainder >> 6) + quotient * 100ull; + return 6; + } + remainder *= mod_inv1; + + n = (remainder >> 7) + quotient * 10ull; + return 7; +} + +// The main algorithm for shorter interval case +template <class T> +FMT_ALWAYS_INLINE FMT_SAFEBUFFERS decimal_fp<T> shorter_interval_case( + int exponent) FMT_NOEXCEPT { + decimal_fp<T> ret_value; + // Compute k and beta + const int minus_k = floor_log10_pow2_minus_log10_4_over_3(exponent); + const int beta_minus_1 = exponent + floor_log2_pow10(-minus_k); + + // Compute xi and zi + using cache_entry_type = typename cache_accessor<T>::cache_entry_type; + const cache_entry_type cache = cache_accessor<T>::get_cached_power(-minus_k); + + auto xi = cache_accessor<T>::compute_left_endpoint_for_shorter_interval_case( + cache, beta_minus_1); + auto zi = cache_accessor<T>::compute_right_endpoint_for_shorter_interval_case( + cache, beta_minus_1); + + // If the left endpoint is not an integer, increase it + if (!is_left_endpoint_integer_shorter_interval<T>(exponent)) ++xi; + + // Try bigger divisor + ret_value.significand = zi / 10; + + // If succeed, remove trailing zeros if necessary and return + if (ret_value.significand * 10 >= xi) { + ret_value.exponent = minus_k + 1; + ret_value.exponent += remove_trailing_zeros(ret_value.significand); + return ret_value; + } + + // Otherwise, compute the round-up of y + ret_value.significand = + cache_accessor<T>::compute_round_up_for_shorter_interval_case( + cache, beta_minus_1); + ret_value.exponent = minus_k; + + // When tie occurs, choose one of them according to the rule + if (exponent >= float_info<T>::shorter_interval_tie_lower_threshold && + exponent <= float_info<T>::shorter_interval_tie_upper_threshold) { + ret_value.significand = ret_value.significand % 2 == 0 + ? ret_value.significand + : ret_value.significand - 1; + } else if (ret_value.significand < xi) { + ++ret_value.significand; + } + return ret_value; +} + +template <typename T> +FMT_SAFEBUFFERS decimal_fp<T> to_decimal(T x) FMT_NOEXCEPT { + // Step 1: integer promotion & Schubfach multiplier calculation. + + using carrier_uint = typename float_info<T>::carrier_uint; + using cache_entry_type = typename cache_accessor<T>::cache_entry_type; + auto br = bit_cast<carrier_uint>(x); + + // Extract significand bits and exponent bits. + const carrier_uint significand_mask = + (static_cast<carrier_uint>(1) << float_info<T>::significand_bits) - 1; + carrier_uint significand = (br & significand_mask); + int exponent = static_cast<int>((br & exponent_mask<T>()) >> + float_info<T>::significand_bits); + + if (exponent != 0) { // Check if normal. + exponent += float_info<T>::exponent_bias - float_info<T>::significand_bits; + + // Shorter interval case; proceed like Schubfach. + if (significand == 0) return shorter_interval_case<T>(exponent); + + significand |= + (static_cast<carrier_uint>(1) << float_info<T>::significand_bits); + } else { + // Subnormal case; the interval is always regular. + if (significand == 0) return {0, 0}; + exponent = float_info<T>::min_exponent - float_info<T>::significand_bits; + } + + const bool include_left_endpoint = (significand % 2 == 0); + const bool include_right_endpoint = include_left_endpoint; + + // Compute k and beta. + const int minus_k = floor_log10_pow2(exponent) - float_info<T>::kappa; + const cache_entry_type cache = cache_accessor<T>::get_cached_power(-minus_k); + const int beta_minus_1 = exponent + floor_log2_pow10(-minus_k); + + // Compute zi and deltai + // 10^kappa <= deltai < 10^(kappa + 1) + const uint32_t deltai = cache_accessor<T>::compute_delta(cache, beta_minus_1); + const carrier_uint two_fc = significand << 1; + const carrier_uint two_fr = two_fc | 1; + const carrier_uint zi = + cache_accessor<T>::compute_mul(two_fr << beta_minus_1, cache); + + // Step 2: Try larger divisor; remove trailing zeros if necessary + + // Using an upper bound on zi, we might be able to optimize the division + // better than the compiler; we are computing zi / big_divisor here + decimal_fp<T> ret_value; + ret_value.significand = divide_by_10_to_kappa_plus_1(zi); + uint32_t r = static_cast<uint32_t>(zi - float_info<T>::big_divisor * + ret_value.significand); + + if (r > deltai) { + goto small_divisor_case_label; + } else if (r < deltai) { + // Exclude the right endpoint if necessary + if (r == 0 && !include_right_endpoint && + is_endpoint_integer<T>(two_fr, exponent, minus_k)) { + --ret_value.significand; + r = float_info<T>::big_divisor; + goto small_divisor_case_label; + } + } else { + // r == deltai; compare fractional parts + // Check conditions in the order different from the paper + // to take advantage of short-circuiting + const carrier_uint two_fl = two_fc - 1; + if ((!include_left_endpoint || + !is_endpoint_integer<T>(two_fl, exponent, minus_k)) && + !cache_accessor<T>::compute_mul_parity(two_fl, cache, beta_minus_1)) { + goto small_divisor_case_label; + } + } + ret_value.exponent = minus_k + float_info<T>::kappa + 1; + + // We may need to remove trailing zeros + ret_value.exponent += remove_trailing_zeros(ret_value.significand); + return ret_value; + + // Step 3: Find the significand with the smaller divisor + +small_divisor_case_label: + ret_value.significand *= 10; + ret_value.exponent = minus_k + float_info<T>::kappa; + + const uint32_t mask = (1u << float_info<T>::kappa) - 1; + auto dist = r - (deltai / 2) + (float_info<T>::small_divisor / 2); + + // Is dist divisible by 2^kappa? + if ((dist & mask) == 0) { + const bool approx_y_parity = + ((dist ^ (float_info<T>::small_divisor / 2)) & 1) != 0; + dist >>= float_info<T>::kappa; + + // Is dist divisible by 5^kappa? + if (check_divisibility_and_divide_by_pow5<float_info<T>::kappa>(dist)) { + ret_value.significand += dist; + + // Check z^(f) >= epsilon^(f) + // We have either yi == zi - epsiloni or yi == (zi - epsiloni) - 1, + // where yi == zi - epsiloni if and only if z^(f) >= epsilon^(f) + // Since there are only 2 possibilities, we only need to care about the + // parity. Also, zi and r should have the same parity since the divisor + // is an even number + if (cache_accessor<T>::compute_mul_parity(two_fc, cache, beta_minus_1) != + approx_y_parity) { + --ret_value.significand; + } else { + // If z^(f) >= epsilon^(f), we might have a tie + // when z^(f) == epsilon^(f), or equivalently, when y is an integer + if (is_center_integer<T>(two_fc, exponent, minus_k)) { + ret_value.significand = ret_value.significand % 2 == 0 + ? ret_value.significand + : ret_value.significand - 1; + } + } + } + // Is dist not divisible by 5^kappa? + else { + ret_value.significand += dist; + } + } + // Is dist not divisible by 2^kappa? + else { + // Since we know dist is small, we might be able to optimize the division + // better than the compiler; we are computing dist / small_divisor here + ret_value.significand += + small_division_by_pow10<float_info<T>::kappa>(dist); + } + return ret_value; +} +} // namespace dragonbox + +// Formats value using a variation of the Fixed-Precision Positive +// Floating-Point Printout ((FPP)^2) algorithm by Steele & White: +// https://fmt.dev/p372-steele.pdf. +template <typename Double> +void fallback_format(Double d, int num_digits, bool binary32, buffer<char>& buf, + int& exp10) { + bigint numerator; // 2 * R in (FPP)^2. + bigint denominator; // 2 * S in (FPP)^2. + // lower and upper are differences between value and corresponding boundaries. + bigint lower; // (M^- in (FPP)^2). + bigint upper_store; // upper's value if different from lower. + bigint* upper = nullptr; // (M^+ in (FPP)^2). + fp value; + // Shift numerator and denominator by an extra bit or two (if lower boundary + // is closer) to make lower and upper integers. This eliminates multiplication + // by 2 during later computations. + const bool is_predecessor_closer = + binary32 ? value.assign(static_cast<float>(d)) : value.assign(d); + int shift = is_predecessor_closer ? 2 : 1; + uint64_t significand = value.f << shift; + if (value.e >= 0) { + numerator.assign(significand); + numerator <<= value.e; + lower.assign(1); + lower <<= value.e; + if (shift != 1) { + upper_store.assign(1); + upper_store <<= value.e + 1; + upper = &upper_store; + } + denominator.assign_pow10(exp10); + denominator <<= shift; + } else if (exp10 < 0) { + numerator.assign_pow10(-exp10); + lower.assign(numerator); + if (shift != 1) { + upper_store.assign(numerator); + upper_store <<= 1; + upper = &upper_store; + } + numerator *= significand; + denominator.assign(1); + denominator <<= shift - value.e; + } else { + numerator.assign(significand); + denominator.assign_pow10(exp10); + denominator <<= shift - value.e; + lower.assign(1); + if (shift != 1) { + upper_store.assign(1ULL << 1); + upper = &upper_store; + } + } + // Invariant: value == (numerator / denominator) * pow(10, exp10). + if (num_digits < 0) { + // Generate the shortest representation. + if (!upper) upper = &lower; + bool even = (value.f & 1) == 0; + num_digits = 0; + char* data = buf.data(); + for (;;) { + int digit = numerator.divmod_assign(denominator); + bool low = compare(numerator, lower) - even < 0; // numerator <[=] lower. + // numerator + upper >[=] pow10: + bool high = add_compare(numerator, *upper, denominator) + even > 0; + data[num_digits++] = static_cast<char>('0' + digit); + if (low || high) { + if (!low) { + ++data[num_digits - 1]; + } else if (high) { + int result = add_compare(numerator, numerator, denominator); + // Round half to even. + if (result > 0 || (result == 0 && (digit % 2) != 0)) + ++data[num_digits - 1]; + } + buf.try_resize(to_unsigned(num_digits)); + exp10 -= num_digits - 1; + return; + } + numerator *= 10; + lower *= 10; + if (upper != &lower) *upper *= 10; + } + } + // Generate the given number of digits. + exp10 -= num_digits - 1; + if (num_digits == 0) { + buf.try_resize(1); + denominator *= 10; + buf[0] = add_compare(numerator, numerator, denominator) > 0 ? '1' : '0'; + return; + } + buf.try_resize(to_unsigned(num_digits)); + for (int i = 0; i < num_digits - 1; ++i) { + int digit = numerator.divmod_assign(denominator); + buf[i] = static_cast<char>('0' + digit); + numerator *= 10; + } + int digit = numerator.divmod_assign(denominator); + auto result = add_compare(numerator, numerator, denominator); + if (result > 0 || (result == 0 && (digit % 2) != 0)) { + if (digit == 9) { + const auto overflow = '0' + 10; + buf[num_digits - 1] = overflow; + // Propagate the carry. + for (int i = num_digits - 1; i > 0 && buf[i] == overflow; --i) { + buf[i] = '0'; + ++buf[i - 1]; + } + if (buf[0] == overflow) { + buf[0] = '1'; + ++exp10; + } + return; + } + ++digit; + } + buf[num_digits - 1] = static_cast<char>('0' + digit); +} + +template <typename T> +int format_float(T value, int precision, float_specs specs, buffer<char>& buf) { + static_assert(!std::is_same<T, float>::value, ""); + FMT_ASSERT(value >= 0, "value is negative"); + + const bool fixed = specs.format == float_format::fixed; + if (value <= 0) { // <= instead of == to silence a warning. + if (precision <= 0 || !fixed) { + buf.push_back('0'); + return 0; + } + buf.try_resize(to_unsigned(precision)); + std::uninitialized_fill_n(buf.data(), precision, '0'); + return -precision; + } + + if (!specs.use_grisu) return snprintf_float(value, precision, specs, buf); + + if (precision < 0) { + // Use Dragonbox for the shortest format. + if (specs.binary32) { + auto dec = dragonbox::to_decimal(static_cast<float>(value)); + write<char>(buffer_appender<char>(buf), dec.significand); + return dec.exponent; + } + auto dec = dragonbox::to_decimal(static_cast<double>(value)); + write<char>(buffer_appender<char>(buf), dec.significand); + return dec.exponent; + } + + // Use Grisu + Dragon4 for the given precision: + // https://www.cs.tufts.edu/~nr/cs257/archive/florian-loitsch/printf.pdf. + int exp = 0; + const int min_exp = -60; // alpha in Grisu. + int cached_exp10 = 0; // K in Grisu. + fp normalized = normalize(fp(value)); + const auto cached_pow = get_cached_power( + min_exp - (normalized.e + fp::significand_size), cached_exp10); + normalized = normalized * cached_pow; + // Limit precision to the maximum possible number of significant digits in an + // IEEE754 double because we don't need to generate zeros. + const int max_double_digits = 767; + if (precision > max_double_digits) precision = max_double_digits; + fixed_handler handler{buf.data(), 0, precision, -cached_exp10, fixed}; + if (grisu_gen_digits(normalized, 1, exp, handler) == digits::error) { + exp += handler.size - cached_exp10 - 1; + fallback_format(value, handler.precision, specs.binary32, buf, exp); + } else { + exp += handler.exp10; + buf.try_resize(to_unsigned(handler.size)); + } + if (!fixed && !specs.showpoint) { + // Remove trailing zeros. + auto num_digits = buf.size(); + while (num_digits > 0 && buf[num_digits - 1] == '0') { + --num_digits; + ++exp; + } + buf.try_resize(num_digits); + } + return exp; +} // namespace detail + +template <typename T> +int snprintf_float(T value, int precision, float_specs specs, + buffer<char>& buf) { + // Buffer capacity must be non-zero, otherwise MSVC's vsnprintf_s will fail. + FMT_ASSERT(buf.capacity() > buf.size(), "empty buffer"); + static_assert(!std::is_same<T, float>::value, ""); + + // Subtract 1 to account for the difference in precision since we use %e for + // both general and exponent format. + if (specs.format == float_format::general || + specs.format == float_format::exp) + precision = (precision >= 0 ? precision : 6) - 1; + + // Build the format string. + enum { max_format_size = 7 }; // The longest format is "%#.*Le". + char format[max_format_size]; + char* format_ptr = format; + *format_ptr++ = '%'; + if (specs.showpoint && specs.format == float_format::hex) *format_ptr++ = '#'; + if (precision >= 0) { + *format_ptr++ = '.'; + *format_ptr++ = '*'; + } + if (std::is_same<T, long double>()) *format_ptr++ = 'L'; + *format_ptr++ = specs.format != float_format::hex + ? (specs.format == float_format::fixed ? 'f' : 'e') + : (specs.upper ? 'A' : 'a'); + *format_ptr = '\0'; + + // Format using snprintf. + auto offset = buf.size(); + for (;;) { + auto begin = buf.data() + offset; + auto capacity = buf.capacity() - offset; +#ifdef FMT_FUZZ + if (precision > 100000) + throw std::runtime_error( + "fuzz mode - avoid large allocation inside snprintf"); +#endif + // Suppress the warning about a nonliteral format string. + // Cannot use auto because of a bug in MinGW (#1532). + int (*snprintf_ptr)(char*, size_t, const char*, ...) = FMT_SNPRINTF; + int result = precision >= 0 + ? snprintf_ptr(begin, capacity, format, precision, value) + : snprintf_ptr(begin, capacity, format, value); + if (result < 0) { + // The buffer will grow exponentially. + buf.try_reserve(buf.capacity() + 1); + continue; + } + auto size = to_unsigned(result); + // Size equal to capacity means that the last character was truncated. + if (size >= capacity) { + buf.try_reserve(size + offset + 1); // Add 1 for the terminating '\0'. + continue; + } + auto is_digit = [](char c) { return c >= '0' && c <= '9'; }; + if (specs.format == float_format::fixed) { + if (precision == 0) { + buf.try_resize(size); + return 0; + } + // Find and remove the decimal point. + auto end = begin + size, p = end; + do { + --p; + } while (is_digit(*p)); + int fraction_size = static_cast<int>(end - p - 1); + std::memmove(p, p + 1, to_unsigned(fraction_size)); + buf.try_resize(size - 1); + return -fraction_size; + } + if (specs.format == float_format::hex) { + buf.try_resize(size + offset); + return 0; + } + // Find and parse the exponent. + auto end = begin + size, exp_pos = end; + do { + --exp_pos; + } while (*exp_pos != 'e'); + char sign = exp_pos[1]; + assert(sign == '+' || sign == '-'); + int exp = 0; + auto p = exp_pos + 2; // Skip 'e' and sign. + do { + assert(is_digit(*p)); + exp = exp * 10 + (*p++ - '0'); + } while (p != end); + if (sign == '-') exp = -exp; + int fraction_size = 0; + if (exp_pos != begin + 1) { + // Remove trailing zeros. + auto fraction_end = exp_pos - 1; + while (*fraction_end == '0') --fraction_end; + // Move the fractional part left to get rid of the decimal point. + fraction_size = static_cast<int>(fraction_end - begin - 1); + std::memmove(begin + 1, begin + 2, to_unsigned(fraction_size)); + } + buf.try_resize(to_unsigned(fraction_size) + offset + 1); + return exp - fraction_size; + } +} + +// A public domain branchless UTF-8 decoder by Christopher Wellons: +// https://github.com/skeeto/branchless-utf8 +/* Decode the next character, c, from buf, reporting errors in e. + * + * Since this is a branchless decoder, four bytes will be read from the + * buffer regardless of the actual length of the next character. This + * means the buffer _must_ have at least three bytes of zero padding + * following the end of the data stream. + * + * Errors are reported in e, which will be non-zero if the parsed + * character was somehow invalid: invalid byte sequence, non-canonical + * encoding, or a surrogate half. + * + * The function returns a pointer to the next character. When an error + * occurs, this pointer will be a guess that depends on the particular + * error, but it will always advance at least one byte. + */ +inline const char* utf8_decode(const char* buf, uint32_t* c, int* e) { + static const int masks[] = {0x00, 0x7f, 0x1f, 0x0f, 0x07}; + static const uint32_t mins[] = {4194304, 0, 128, 2048, 65536}; + static const int shiftc[] = {0, 18, 12, 6, 0}; + static const int shifte[] = {0, 6, 4, 2, 0}; + + int len = code_point_length(buf); + const char* next = buf + len; + + // Assume a four-byte character and load four bytes. Unused bits are + // shifted out. + auto s = reinterpret_cast<const unsigned char*>(buf); + *c = uint32_t(s[0] & masks[len]) << 18; + *c |= uint32_t(s[1] & 0x3f) << 12; + *c |= uint32_t(s[2] & 0x3f) << 6; + *c |= uint32_t(s[3] & 0x3f) << 0; + *c >>= shiftc[len]; + + // Accumulate the various error conditions. + *e = (*c < mins[len]) << 6; // non-canonical encoding + *e |= ((*c >> 11) == 0x1b) << 7; // surrogate half? + *e |= (*c > 0x10FFFF) << 8; // out of range? + *e |= (s[1] & 0xc0) >> 2; + *e |= (s[2] & 0xc0) >> 4; + *e |= (s[3]) >> 6; + *e ^= 0x2a; // top two bits of each tail byte correct? + *e >>= shifte[len]; + + return next; +} + +struct stringifier { + template <typename T> FMT_INLINE std::string operator()(T value) const { + return to_string(value); + } + std::string operator()(basic_format_arg<format_context>::handle h) const { + memory_buffer buf; + format_parse_context parse_ctx({}); + format_context format_ctx(buffer_appender<char>(buf), {}, {}); + h.format(parse_ctx, format_ctx); + return to_string(buf); + } +}; +} // namespace detail + +template <> struct formatter<detail::bigint> { + format_parse_context::iterator parse(format_parse_context& ctx) { + return ctx.begin(); + } + + format_context::iterator format(const detail::bigint& n, + format_context& ctx) { + auto out = ctx.out(); + bool first = true; + for (auto i = n.bigits_.size(); i > 0; --i) { + auto value = n.bigits_[i - 1u]; + if (first) { + out = format_to(out, "{:x}", value); + first = false; + continue; + } + out = format_to(out, "{:08x}", value); + } + if (n.exp_ > 0) + out = format_to(out, "p{}", n.exp_ * detail::bigint::bigit_bits); + return out; + } +}; + +FMT_FUNC detail::utf8_to_utf16::utf8_to_utf16(string_view s) { + auto transcode = [this](const char* p) { + auto cp = uint32_t(); + auto error = 0; + p = utf8_decode(p, &cp, &error); + if (error != 0) FMT_THROW(std::runtime_error("invalid utf8")); + if (cp <= 0xFFFF) { + buffer_.push_back(static_cast<wchar_t>(cp)); + } else { + cp -= 0x10000; + buffer_.push_back(static_cast<wchar_t>(0xD800 + (cp >> 10))); + buffer_.push_back(static_cast<wchar_t>(0xDC00 + (cp & 0x3FF))); + } + return p; + }; + auto p = s.data(); + const size_t block_size = 4; // utf8_decode always reads blocks of 4 chars. + if (s.size() >= block_size) { + for (auto end = p + s.size() - block_size + 1; p < end;) p = transcode(p); + } + if (auto num_chars_left = s.data() + s.size() - p) { + char buf[2 * block_size - 1] = {}; + memcpy(buf, p, to_unsigned(num_chars_left)); + p = buf; + do { + p = transcode(p); + } while (p - buf < num_chars_left); + } + buffer_.push_back(0); +} + +FMT_FUNC void format_system_error(detail::buffer<char>& out, int error_code, + string_view message) FMT_NOEXCEPT { + FMT_TRY { + memory_buffer buf; + buf.resize(inline_buffer_size); + for (;;) { + char* system_message = &buf[0]; + int result = + detail::safe_strerror(error_code, system_message, buf.size()); + if (result == 0) { + format_to(detail::buffer_appender<char>(out), "{}: {}", message, + system_message); + return; + } + if (result != ERANGE) + break; // Can't get error message, report error code instead. + buf.resize(buf.size() * 2); + } + } + FMT_CATCH(...) {} + format_error_code(out, error_code, message); +} + +FMT_FUNC void detail::error_handler::on_error(const char* message) { + FMT_THROW(format_error(message)); +} + +FMT_FUNC void report_system_error(int error_code, + fmt::string_view message) FMT_NOEXCEPT { + report_error(format_system_error, error_code, message); +} + +FMT_FUNC std::string detail::vformat(string_view format_str, format_args args) { + if (format_str.size() == 2 && equal2(format_str.data(), "{}")) { + auto arg = args.get(0); + if (!arg) error_handler().on_error("argument not found"); + return visit_format_arg(stringifier(), arg); + } + memory_buffer buffer; + detail::vformat_to(buffer, format_str, args); + return to_string(buffer); +} + +#ifdef _WIN32 +namespace detail { +using dword = conditional_t<sizeof(long) == 4, unsigned long, unsigned>; +extern "C" __declspec(dllimport) int __stdcall WriteConsoleW( // + void*, const void*, dword, dword*, void*); +} // namespace detail +#endif + +FMT_FUNC void vprint(std::FILE* f, string_view format_str, format_args args) { + memory_buffer buffer; + detail::vformat_to(buffer, format_str, + basic_format_args<buffer_context<char>>(args)); +#ifdef _WIN32 + auto fd = _fileno(f); + if (_isatty(fd)) { + detail::utf8_to_utf16 u16(string_view(buffer.data(), buffer.size())); + auto written = detail::dword(); + if (!detail::WriteConsoleW(reinterpret_cast<void*>(_get_osfhandle(fd)), + u16.c_str(), static_cast<uint32_t>(u16.size()), + &written, nullptr)) { + FMT_THROW(format_error("failed to write to console")); + } + return; + } +#endif + detail::fwrite_fully(buffer.data(), 1, buffer.size(), f); +} + +#ifdef _WIN32 +// Print assuming legacy (non-Unicode) encoding. +FMT_FUNC void detail::vprint_mojibake(std::FILE* f, string_view format_str, + format_args args) { + memory_buffer buffer; + detail::vformat_to(buffer, format_str, + basic_format_args<buffer_context<char>>(args)); + fwrite_fully(buffer.data(), 1, buffer.size(), f); +} +#endif + +FMT_FUNC void vprint(string_view format_str, format_args args) { + vprint(stdout, format_str, args); +} + +FMT_END_NAMESPACE + +#endif // FMT_FORMAT_INL_H_ diff --git a/contrib/libs/fmt/include/fmt/format.h b/contrib/libs/fmt/include/fmt/format.h new file mode 100644 index 0000000000..9d0a42be85 --- /dev/null +++ b/contrib/libs/fmt/include/fmt/format.h @@ -0,0 +1,3960 @@ +/* + Formatting library for C++ + + Copyright (c) 2012 - present, Victor Zverovich + + Permission is hereby granted, free of charge, to any person obtaining + a copy of this software and associated documentation files (the + "Software"), to deal in the Software without restriction, including + without limitation the rights to use, copy, modify, merge, publish, + distribute, sublicense, and/or sell copies of the Software, and to + permit persons to whom the Software is furnished to do so, subject to + the following conditions: + + The above copyright notice and this permission notice shall be + included in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE + LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + + --- Optional exception to the license --- + + As an exception, if, as a result of your compiling your source code, portions + of this Software are embedded into a machine-executable object form of such + source code, you may redistribute such embedded portions in such object form + without including the above copyright and permission notices. + */ + +#ifndef FMT_FORMAT_H_ +#define FMT_FORMAT_H_ + +#include <algorithm> +#include <cerrno> +#include <cmath> +#include <cstdint> +#include <limits> +#include <memory> +#include <stdexcept> + +#include "core.h" + +#ifdef __INTEL_COMPILER +# define FMT_ICC_VERSION __INTEL_COMPILER +#elif defined(__ICL) +# define FMT_ICC_VERSION __ICL +#else +# define FMT_ICC_VERSION 0 +#endif + +#ifdef __NVCC__ +# define FMT_CUDA_VERSION (__CUDACC_VER_MAJOR__ * 100 + __CUDACC_VER_MINOR__) +#else +# define FMT_CUDA_VERSION 0 +#endif + +#ifdef __has_builtin +# define FMT_HAS_BUILTIN(x) __has_builtin(x) +#else +# define FMT_HAS_BUILTIN(x) 0 +#endif + +#if FMT_GCC_VERSION || FMT_CLANG_VERSION +# define FMT_NOINLINE __attribute__((noinline)) +#else +# define FMT_NOINLINE +#endif + +#if __cplusplus == 201103L || __cplusplus == 201402L +# if defined(__INTEL_COMPILER) || defined(__PGI) +# define FMT_FALLTHROUGH +# elif defined(__clang__) +# define FMT_FALLTHROUGH [[clang::fallthrough]] +# elif FMT_GCC_VERSION >= 700 && \ + (!defined(__EDG_VERSION__) || __EDG_VERSION__ >= 520) +# define FMT_FALLTHROUGH [[gnu::fallthrough]] +# else +# define FMT_FALLTHROUGH +# endif +#elif FMT_HAS_CPP17_ATTRIBUTE(fallthrough) || \ + (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) +# define FMT_FALLTHROUGH [[fallthrough]] +#else +# define FMT_FALLTHROUGH +#endif + +#ifndef FMT_MAYBE_UNUSED +# if FMT_HAS_CPP17_ATTRIBUTE(maybe_unused) +# define FMT_MAYBE_UNUSED [[maybe_unused]] +# else +# define FMT_MAYBE_UNUSED +# endif +#endif + +#ifndef FMT_THROW +# if FMT_EXCEPTIONS +# if FMT_MSC_VER || FMT_NVCC +FMT_BEGIN_NAMESPACE +namespace detail { +template <typename Exception> inline void do_throw(const Exception& x) { + // Silence unreachable code warnings in MSVC and NVCC because these + // are nearly impossible to fix in a generic code. + volatile bool b = true; + if (b) throw x; +} +} // namespace detail +FMT_END_NAMESPACE +# define FMT_THROW(x) detail::do_throw(x) +# else +# define FMT_THROW(x) throw x +# endif +# else +# define FMT_THROW(x) \ + do { \ + static_cast<void>(sizeof(x)); \ + FMT_ASSERT(false, ""); \ + } while (false) +# endif +#endif + +#if FMT_EXCEPTIONS +# define FMT_TRY try +# define FMT_CATCH(x) catch (x) +#else +# define FMT_TRY if (true) +# define FMT_CATCH(x) if (false) +#endif + +#ifndef FMT_USE_USER_DEFINED_LITERALS +// EDG based compilers (Intel, NVIDIA, Elbrus, etc), GCC and MSVC support UDLs. +# if (FMT_HAS_FEATURE(cxx_user_literals) || FMT_GCC_VERSION >= 407 || \ + FMT_MSC_VER >= 1900) && \ + (!defined(__EDG_VERSION__) || __EDG_VERSION__ >= /* UDL feature */ 480) +# define FMT_USE_USER_DEFINED_LITERALS 1 +# else +# define FMT_USE_USER_DEFINED_LITERALS 0 +# endif +#endif + +#ifndef FMT_USE_UDL_TEMPLATE +// EDG frontend based compilers (icc, nvcc, PGI, etc) and GCC < 6.4 do not +// properly support UDL templates and GCC >= 9 warns about them. +# if FMT_USE_USER_DEFINED_LITERALS && \ + (!defined(__EDG_VERSION__) || __EDG_VERSION__ >= 501) && \ + ((FMT_GCC_VERSION >= 604 && __cplusplus >= 201402L) || \ + FMT_CLANG_VERSION >= 304) && \ + !defined(__PGI) && !defined(__NVCC__) +# define FMT_USE_UDL_TEMPLATE 1 +# else +# define FMT_USE_UDL_TEMPLATE 0 +# endif +#endif + +#ifndef FMT_USE_FLOAT +# define FMT_USE_FLOAT 1 +#endif + +#ifndef FMT_USE_DOUBLE +# define FMT_USE_DOUBLE 1 +#endif + +#ifndef FMT_USE_LONG_DOUBLE +# define FMT_USE_LONG_DOUBLE 1 +#endif + +// Defining FMT_REDUCE_INT_INSTANTIATIONS to 1, will reduce the number of +// int_writer template instances to just one by only using the largest integer +// type. This results in a reduction in binary size but will cause a decrease in +// integer formatting performance. +#if !defined(FMT_REDUCE_INT_INSTANTIATIONS) +# define FMT_REDUCE_INT_INSTANTIATIONS 0 +#endif + +// __builtin_clz is broken in clang with Microsoft CodeGen: +// https://github.com/fmtlib/fmt/issues/519 +#if (FMT_GCC_VERSION || FMT_HAS_BUILTIN(__builtin_clz)) && !FMT_MSC_VER +# define FMT_BUILTIN_CLZ(n) __builtin_clz(n) +#endif +#if (FMT_GCC_VERSION || FMT_HAS_BUILTIN(__builtin_clzll)) && !FMT_MSC_VER +# define FMT_BUILTIN_CLZLL(n) __builtin_clzll(n) +#endif +#if (FMT_GCC_VERSION || FMT_HAS_BUILTIN(__builtin_ctz)) +# define FMT_BUILTIN_CTZ(n) __builtin_ctz(n) +#endif +#if (FMT_GCC_VERSION || FMT_HAS_BUILTIN(__builtin_ctzll)) +# define FMT_BUILTIN_CTZLL(n) __builtin_ctzll(n) +#endif + +#if FMT_MSC_VER +# include <intrin.h> // _BitScanReverse[64], _BitScanForward[64], _umul128 +#endif + +// Some compilers masquerade as both MSVC and GCC-likes or otherwise support +// __builtin_clz and __builtin_clzll, so only define FMT_BUILTIN_CLZ using the +// MSVC intrinsics if the clz and clzll builtins are not available. +#if FMT_MSC_VER && !defined(FMT_BUILTIN_CLZLL) && \ + !defined(FMT_BUILTIN_CTZLL) && !defined(_MANAGED) +FMT_BEGIN_NAMESPACE +namespace detail { +// Avoid Clang with Microsoft CodeGen's -Wunknown-pragmas warning. +# ifndef __clang__ +# pragma intrinsic(_BitScanForward) +# pragma intrinsic(_BitScanReverse) +# endif +# if defined(_WIN64) && !defined(__clang__) +# pragma intrinsic(_BitScanForward64) +# pragma intrinsic(_BitScanReverse64) +# endif + +inline int clz(uint32_t x) { + unsigned long r = 0; + _BitScanReverse(&r, x); + FMT_ASSERT(x != 0, ""); + // Static analysis complains about using uninitialized data + // "r", but the only way that can happen is if "x" is 0, + // which the callers guarantee to not happen. + FMT_SUPPRESS_MSC_WARNING(6102) + return 31 ^ static_cast<int>(r); +} +# define FMT_BUILTIN_CLZ(n) detail::clz(n) + +inline int clzll(uint64_t x) { + unsigned long r = 0; +# ifdef _WIN64 + _BitScanReverse64(&r, x); +# else + // Scan the high 32 bits. + if (_BitScanReverse(&r, static_cast<uint32_t>(x >> 32))) return 63 ^ (r + 32); + // Scan the low 32 bits. + _BitScanReverse(&r, static_cast<uint32_t>(x)); +# endif + FMT_ASSERT(x != 0, ""); + FMT_SUPPRESS_MSC_WARNING(6102) // Suppress a bogus static analysis warning. + return 63 ^ static_cast<int>(r); +} +# define FMT_BUILTIN_CLZLL(n) detail::clzll(n) + +inline int ctz(uint32_t x) { + unsigned long r = 0; + _BitScanForward(&r, x); + FMT_ASSERT(x != 0, ""); + FMT_SUPPRESS_MSC_WARNING(6102) // Suppress a bogus static analysis warning. + return static_cast<int>(r); +} +# define FMT_BUILTIN_CTZ(n) detail::ctz(n) + +inline int ctzll(uint64_t x) { + unsigned long r = 0; + FMT_ASSERT(x != 0, ""); + FMT_SUPPRESS_MSC_WARNING(6102) // Suppress a bogus static analysis warning. +# ifdef _WIN64 + _BitScanForward64(&r, x); +# else + // Scan the low 32 bits. + if (_BitScanForward(&r, static_cast<uint32_t>(x))) return static_cast<int>(r); + // Scan the high 32 bits. + _BitScanForward(&r, static_cast<uint32_t>(x >> 32)); + r += 32; +# endif + return static_cast<int>(r); +} +# define FMT_BUILTIN_CTZLL(n) detail::ctzll(n) +} // namespace detail +FMT_END_NAMESPACE +#endif + +// Enable the deprecated numeric alignment. +#ifndef FMT_DEPRECATED_NUMERIC_ALIGN +# define FMT_DEPRECATED_NUMERIC_ALIGN 0 +#endif + +FMT_BEGIN_NAMESPACE +namespace detail { + +// An equivalent of `*reinterpret_cast<Dest*>(&source)` that doesn't have +// undefined behavior (e.g. due to type aliasing). +// Example: uint64_t d = bit_cast<uint64_t>(2.718); +template <typename Dest, typename Source> +inline Dest bit_cast(const Source& source) { + static_assert(sizeof(Dest) == sizeof(Source), "size mismatch"); + Dest dest; + std::memcpy(&dest, &source, sizeof(dest)); + return dest; +} + +inline bool is_big_endian() { + const auto u = 1u; + struct bytes { + char data[sizeof(u)]; + }; + return bit_cast<bytes>(u).data[0] == 0; +} + +// A fallback implementation of uintptr_t for systems that lack it. +struct fallback_uintptr { + unsigned char value[sizeof(void*)]; + + fallback_uintptr() = default; + explicit fallback_uintptr(const void* p) { + *this = bit_cast<fallback_uintptr>(p); + if (is_big_endian()) { + for (size_t i = 0, j = sizeof(void*) - 1; i < j; ++i, --j) + std::swap(value[i], value[j]); + } + } +}; +#ifdef UINTPTR_MAX +using uintptr_t = ::uintptr_t; +inline uintptr_t to_uintptr(const void* p) { return bit_cast<uintptr_t>(p); } +#else +using uintptr_t = fallback_uintptr; +inline fallback_uintptr to_uintptr(const void* p) { + return fallback_uintptr(p); +} +#endif + +// Returns the largest possible value for type T. Same as +// std::numeric_limits<T>::max() but shorter and not affected by the max macro. +template <typename T> constexpr T max_value() { + return (std::numeric_limits<T>::max)(); +} +template <typename T> constexpr int num_bits() { + return std::numeric_limits<T>::digits; +} +// std::numeric_limits<T>::digits may return 0 for 128-bit ints. +template <> constexpr int num_bits<int128_t>() { return 128; } +template <> constexpr int num_bits<uint128_t>() { return 128; } +template <> constexpr int num_bits<fallback_uintptr>() { + return static_cast<int>(sizeof(void*) * + std::numeric_limits<unsigned char>::digits); +} + +FMT_INLINE void assume(bool condition) { + (void)condition; +#if FMT_HAS_BUILTIN(__builtin_assume) + __builtin_assume(condition); +#endif +} + +// An approximation of iterator_t for pre-C++20 systems. +template <typename T> +using iterator_t = decltype(std::begin(std::declval<T&>())); +template <typename T> using sentinel_t = decltype(std::end(std::declval<T&>())); + +// A workaround for std::string not having mutable data() until C++17. +template <typename Char> inline Char* get_data(std::basic_string<Char>& s) { + return &s[0]; +} +template <typename Container> +inline typename Container::value_type* get_data(Container& c) { + return c.data(); +} + +#if defined(_SECURE_SCL) && _SECURE_SCL && !defined(_LIBCPP_VERSION) +// Make a checked iterator to avoid MSVC warnings. +template <typename T> using checked_ptr = stdext::checked_array_iterator<T*>; +template <typename T> checked_ptr<T> make_checked(T* p, size_t size) { + return {p, size}; +} +#else +template <typename T> using checked_ptr = T*; +template <typename T> inline T* make_checked(T* p, size_t) { return p; } +#endif + +template <typename Container, FMT_ENABLE_IF(is_contiguous<Container>::value)> +#if FMT_CLANG_VERSION +__attribute__((no_sanitize("undefined"))) +#endif +inline checked_ptr<typename Container::value_type> +reserve(std::back_insert_iterator<Container> it, size_t n) { + Container& c = get_container(it); + size_t size = c.size(); + c.resize(size + n); + return make_checked(get_data(c) + size, n); +} + +template <typename T> +inline buffer_appender<T> reserve(buffer_appender<T> it, size_t n) { + buffer<T>& buf = get_container(it); + buf.try_reserve(buf.size() + n); + return it; +} + +template <typename Iterator> inline Iterator& reserve(Iterator& it, size_t) { + return it; +} + +template <typename T, typename OutputIt> +constexpr T* to_pointer(OutputIt, size_t) { + return nullptr; +} +template <typename T> T* to_pointer(buffer_appender<T> it, size_t n) { + buffer<T>& buf = get_container(it); + auto size = buf.size(); + if (buf.capacity() < size + n) return nullptr; + buf.try_resize(size + n); + return buf.data() + size; +} + +template <typename Container, FMT_ENABLE_IF(is_contiguous<Container>::value)> +inline std::back_insert_iterator<Container> base_iterator( + std::back_insert_iterator<Container>& it, + checked_ptr<typename Container::value_type>) { + return it; +} + +template <typename Iterator> +inline Iterator base_iterator(Iterator, Iterator it) { + return it; +} + +// An output iterator that counts the number of objects written to it and +// discards them. +class counting_iterator { + private: + size_t count_; + + public: + using iterator_category = std::output_iterator_tag; + using difference_type = std::ptrdiff_t; + using pointer = void; + using reference = void; + using _Unchecked_type = counting_iterator; // Mark iterator as checked. + + struct value_type { + template <typename T> void operator=(const T&) {} + }; + + counting_iterator() : count_(0) {} + + size_t count() const { return count_; } + + counting_iterator& operator++() { + ++count_; + return *this; + } + counting_iterator operator++(int) { + auto it = *this; + ++*this; + return it; + } + + friend counting_iterator operator+(counting_iterator it, difference_type n) { + it.count_ += static_cast<size_t>(n); + return it; + } + + value_type operator*() const { return {}; } +}; + +template <typename OutputIt> class truncating_iterator_base { + protected: + OutputIt out_; + size_t limit_; + size_t count_; + + truncating_iterator_base(OutputIt out, size_t limit) + : out_(out), limit_(limit), count_(0) {} + + public: + using iterator_category = std::output_iterator_tag; + using value_type = typename std::iterator_traits<OutputIt>::value_type; + using difference_type = void; + using pointer = void; + using reference = void; + using _Unchecked_type = + truncating_iterator_base; // Mark iterator as checked. + + OutputIt base() const { return out_; } + size_t count() const { return count_; } +}; + +// An output iterator that truncates the output and counts the number of objects +// written to it. +template <typename OutputIt, + typename Enable = typename std::is_void< + typename std::iterator_traits<OutputIt>::value_type>::type> +class truncating_iterator; + +template <typename OutputIt> +class truncating_iterator<OutputIt, std::false_type> + : public truncating_iterator_base<OutputIt> { + mutable typename truncating_iterator_base<OutputIt>::value_type blackhole_; + + public: + using value_type = typename truncating_iterator_base<OutputIt>::value_type; + + truncating_iterator(OutputIt out, size_t limit) + : truncating_iterator_base<OutputIt>(out, limit) {} + + truncating_iterator& operator++() { + if (this->count_++ < this->limit_) ++this->out_; + return *this; + } + + truncating_iterator operator++(int) { + auto it = *this; + ++*this; + return it; + } + + value_type& operator*() const { + return this->count_ < this->limit_ ? *this->out_ : blackhole_; + } +}; + +template <typename OutputIt> +class truncating_iterator<OutputIt, std::true_type> + : public truncating_iterator_base<OutputIt> { + public: + truncating_iterator(OutputIt out, size_t limit) + : truncating_iterator_base<OutputIt>(out, limit) {} + + template <typename T> truncating_iterator& operator=(T val) { + if (this->count_++ < this->limit_) *this->out_++ = val; + return *this; + } + + truncating_iterator& operator++() { return *this; } + truncating_iterator& operator++(int) { return *this; } + truncating_iterator& operator*() { return *this; } +}; + +template <typename Char> +inline size_t count_code_points(basic_string_view<Char> s) { + return s.size(); +} + +// Counts the number of code points in a UTF-8 string. +inline size_t count_code_points(basic_string_view<char> s) { + const char* data = s.data(); + size_t num_code_points = 0; + for (size_t i = 0, size = s.size(); i != size; ++i) { + if ((data[i] & 0xc0) != 0x80) ++num_code_points; + } + return num_code_points; +} + +inline size_t count_code_points(basic_string_view<char8_type> s) { + return count_code_points(basic_string_view<char>( + reinterpret_cast<const char*>(s.data()), s.size())); +} + +template <typename Char> +inline size_t code_point_index(basic_string_view<Char> s, size_t n) { + size_t size = s.size(); + return n < size ? n : size; +} + +// Calculates the index of the nth code point in a UTF-8 string. +inline size_t code_point_index(basic_string_view<char8_type> s, size_t n) { + const char8_type* data = s.data(); + size_t num_code_points = 0; + for (size_t i = 0, size = s.size(); i != size; ++i) { + if ((data[i] & 0xc0) != 0x80 && ++num_code_points > n) { + return i; + } + } + return s.size(); +} + +template <typename InputIt, typename OutChar> +using needs_conversion = bool_constant< + std::is_same<typename std::iterator_traits<InputIt>::value_type, + char>::value && + std::is_same<OutChar, char8_type>::value>; + +template <typename OutChar, typename InputIt, typename OutputIt, + FMT_ENABLE_IF(!needs_conversion<InputIt, OutChar>::value)> +OutputIt copy_str(InputIt begin, InputIt end, OutputIt it) { + return std::copy(begin, end, it); +} + +template <typename OutChar, typename InputIt, typename OutputIt, + FMT_ENABLE_IF(needs_conversion<InputIt, OutChar>::value)> +OutputIt copy_str(InputIt begin, InputIt end, OutputIt it) { + return std::transform(begin, end, it, + [](char c) { return static_cast<char8_type>(c); }); +} + +template <typename Char, typename InputIt> +inline counting_iterator copy_str(InputIt begin, InputIt end, + counting_iterator it) { + return it + (end - begin); +} + +template <typename T> +using is_fast_float = bool_constant<std::numeric_limits<T>::is_iec559 && + sizeof(T) <= sizeof(double)>; + +#ifndef FMT_USE_FULL_CACHE_DRAGONBOX +# define FMT_USE_FULL_CACHE_DRAGONBOX 0 +#endif + +template <typename T> +template <typename U> +void buffer<T>::append(const U* begin, const U* end) { + do { + auto count = to_unsigned(end - begin); + try_reserve(size_ + count); + auto free_cap = capacity_ - size_; + if (free_cap < count) count = free_cap; + std::uninitialized_copy_n(begin, count, make_checked(ptr_ + size_, count)); + size_ += count; + begin += count; + } while (begin != end); +} + +template <typename OutputIt, typename T, typename Traits> +void iterator_buffer<OutputIt, T, Traits>::flush() { + out_ = std::copy_n(data_, this->limit(this->size()), out_); + this->clear(); +} +} // namespace detail + +// The number of characters to store in the basic_memory_buffer object itself +// to avoid dynamic memory allocation. +enum { inline_buffer_size = 500 }; + +/** + \rst + A dynamically growing memory buffer for trivially copyable/constructible types + with the first ``SIZE`` elements stored in the object itself. + + You can use one of the following type aliases for common character types: + + +----------------+------------------------------+ + | Type | Definition | + +================+==============================+ + | memory_buffer | basic_memory_buffer<char> | + +----------------+------------------------------+ + | wmemory_buffer | basic_memory_buffer<wchar_t> | + +----------------+------------------------------+ + + **Example**:: + + fmt::memory_buffer out; + format_to(out, "The answer is {}.", 42); + + This will append the following output to the ``out`` object: + + .. code-block:: none + + The answer is 42. + + The output can be converted to an ``std::string`` with ``to_string(out)``. + \endrst + */ +template <typename T, size_t SIZE = inline_buffer_size, + typename Allocator = std::allocator<T>> +class basic_memory_buffer final : public detail::buffer<T> { + private: + T store_[SIZE]; + + // Don't inherit from Allocator avoid generating type_info for it. + Allocator alloc_; + + // Deallocate memory allocated by the buffer. + void deallocate() { + T* data = this->data(); + if (data != store_) alloc_.deallocate(data, this->capacity()); + } + + protected: + void grow(size_t size) final FMT_OVERRIDE; + + public: + using value_type = T; + using const_reference = const T&; + + explicit basic_memory_buffer(const Allocator& alloc = Allocator()) + : alloc_(alloc) { + this->set(store_, SIZE); + } + ~basic_memory_buffer() { deallocate(); } + + private: + // Move data from other to this buffer. + void move(basic_memory_buffer& other) { + alloc_ = std::move(other.alloc_); + T* data = other.data(); + size_t size = other.size(), capacity = other.capacity(); + if (data == other.store_) { + this->set(store_, capacity); + std::uninitialized_copy(other.store_, other.store_ + size, + detail::make_checked(store_, capacity)); + } else { + this->set(data, capacity); + // Set pointer to the inline array so that delete is not called + // when deallocating. + other.set(other.store_, 0); + } + this->resize(size); + } + + public: + /** + \rst + Constructs a :class:`fmt::basic_memory_buffer` object moving the content + of the other object to it. + \endrst + */ + basic_memory_buffer(basic_memory_buffer&& other) FMT_NOEXCEPT { move(other); } + + /** + \rst + Moves the content of the other ``basic_memory_buffer`` object to this one. + \endrst + */ + basic_memory_buffer& operator=(basic_memory_buffer&& other) FMT_NOEXCEPT { + FMT_ASSERT(this != &other, ""); + deallocate(); + move(other); + return *this; + } + + // Returns a copy of the allocator associated with this buffer. + Allocator get_allocator() const { return alloc_; } + + /** + Resizes the buffer to contain *count* elements. If T is a POD type new + elements may not be initialized. + */ + void resize(size_t count) { this->try_resize(count); } + + /** Increases the buffer capacity to *new_capacity*. */ + void reserve(size_t new_capacity) { this->try_reserve(new_capacity); } + + // Directly append data into the buffer + using detail::buffer<T>::append; + template <typename ContiguousRange> + void append(const ContiguousRange& range) { + append(range.data(), range.data() + range.size()); + } +}; + +template <typename T, size_t SIZE, typename Allocator> +void basic_memory_buffer<T, SIZE, Allocator>::grow(size_t size) { +#ifdef FMT_FUZZ + if (size > 5000) throw std::runtime_error("fuzz mode - won't grow that much"); +#endif + size_t old_capacity = this->capacity(); + size_t new_capacity = old_capacity + old_capacity / 2; + if (size > new_capacity) new_capacity = size; + T* old_data = this->data(); + T* new_data = + std::allocator_traits<Allocator>::allocate(alloc_, new_capacity); + // The following code doesn't throw, so the raw pointer above doesn't leak. + std::uninitialized_copy(old_data, old_data + this->size(), + detail::make_checked(new_data, new_capacity)); + this->set(new_data, new_capacity); + // deallocate must not throw according to the standard, but even if it does, + // the buffer already uses the new storage and will deallocate it in + // destructor. + if (old_data != store_) alloc_.deallocate(old_data, old_capacity); +} + +using memory_buffer = basic_memory_buffer<char>; +using wmemory_buffer = basic_memory_buffer<wchar_t>; + +template <typename T, size_t SIZE, typename Allocator> +struct is_contiguous<basic_memory_buffer<T, SIZE, Allocator>> : std::true_type { +}; + +/** A formatting error such as invalid format string. */ +FMT_CLASS_API +class FMT_API format_error : public std::runtime_error { + public: + explicit format_error(const char* message) : std::runtime_error(message) {} + explicit format_error(const std::string& message) + : std::runtime_error(message) {} + format_error(const format_error&) = default; + format_error& operator=(const format_error&) = default; + format_error(format_error&&) = default; + format_error& operator=(format_error&&) = default; + ~format_error() FMT_NOEXCEPT FMT_OVERRIDE; +}; + +namespace detail { + +template <typename T> +using is_signed = + std::integral_constant<bool, std::numeric_limits<T>::is_signed || + std::is_same<T, int128_t>::value>; + +// Returns true if value is negative, false otherwise. +// Same as `value < 0` but doesn't produce warnings if T is an unsigned type. +template <typename T, FMT_ENABLE_IF(is_signed<T>::value)> +FMT_CONSTEXPR bool is_negative(T value) { + return value < 0; +} +template <typename T, FMT_ENABLE_IF(!is_signed<T>::value)> +FMT_CONSTEXPR bool is_negative(T) { + return false; +} + +template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)> +FMT_CONSTEXPR bool is_supported_floating_point(T) { + return (std::is_same<T, float>::value && FMT_USE_FLOAT) || + (std::is_same<T, double>::value && FMT_USE_DOUBLE) || + (std::is_same<T, long double>::value && FMT_USE_LONG_DOUBLE); +} + +// Smallest of uint32_t, uint64_t, uint128_t that is large enough to +// represent all values of an integral type T. +template <typename T> +using uint32_or_64_or_128_t = + conditional_t<num_bits<T>() <= 32 && !FMT_REDUCE_INT_INSTANTIATIONS, + uint32_t, + conditional_t<num_bits<T>() <= 64, uint64_t, uint128_t>>; + +// 128-bit integer type used internally +struct FMT_EXTERN_TEMPLATE_API uint128_wrapper { + uint128_wrapper() = default; + +#if FMT_USE_INT128 + uint128_t internal_; + + uint128_wrapper(uint64_t high, uint64_t low) FMT_NOEXCEPT + : internal_{static_cast<uint128_t>(low) | + (static_cast<uint128_t>(high) << 64)} {} + + uint128_wrapper(uint128_t u) : internal_{u} {} + + uint64_t high() const FMT_NOEXCEPT { return uint64_t(internal_ >> 64); } + uint64_t low() const FMT_NOEXCEPT { return uint64_t(internal_); } + + uint128_wrapper& operator+=(uint64_t n) FMT_NOEXCEPT { + internal_ += n; + return *this; + } +#else + uint64_t high_; + uint64_t low_; + + uint128_wrapper(uint64_t high, uint64_t low) FMT_NOEXCEPT : high_{high}, + low_{low} {} + + uint64_t high() const FMT_NOEXCEPT { return high_; } + uint64_t low() const FMT_NOEXCEPT { return low_; } + + uint128_wrapper& operator+=(uint64_t n) FMT_NOEXCEPT { +# if defined(_MSC_VER) && defined(_M_X64) + unsigned char carry = _addcarry_u64(0, low_, n, &low_); + _addcarry_u64(carry, high_, 0, &high_); + return *this; +# else + uint64_t sum = low_ + n; + high_ += (sum < low_ ? 1 : 0); + low_ = sum; + return *this; +# endif + } +#endif +}; + +// Table entry type for divisibility test used internally +template <typename T> struct FMT_EXTERN_TEMPLATE_API divtest_table_entry { + T mod_inv; + T max_quotient; +}; + +// Static data is placed in this class template for the header-only config. +template <typename T = void> struct FMT_EXTERN_TEMPLATE_API basic_data { + static const uint64_t powers_of_10_64[]; + static const uint32_t zero_or_powers_of_10_32_new[]; + static const uint64_t zero_or_powers_of_10_64_new[]; + static const uint64_t grisu_pow10_significands[]; + static const int16_t grisu_pow10_exponents[]; + static const divtest_table_entry<uint32_t> divtest_table_for_pow5_32[]; + static const divtest_table_entry<uint64_t> divtest_table_for_pow5_64[]; + static const uint64_t dragonbox_pow10_significands_64[]; + static const uint128_wrapper dragonbox_pow10_significands_128[]; + // log10(2) = 0x0.4d104d427de7fbcc... + static const uint64_t log10_2_significand = 0x4d104d427de7fbcc; +#if !FMT_USE_FULL_CACHE_DRAGONBOX + static const uint64_t powers_of_5_64[]; + static const uint32_t dragonbox_pow10_recovery_errors[]; +#endif + // GCC generates slightly better code for pairs than chars. + using digit_pair = char[2]; + static const digit_pair digits[]; + static const char hex_digits[]; + static const char foreground_color[]; + static const char background_color[]; + static const char reset_color[5]; + static const wchar_t wreset_color[5]; + static const char signs[]; + static const char left_padding_shifts[5]; + static const char right_padding_shifts[5]; + + // DEPRECATED! These are for ABI compatibility. + static const uint32_t zero_or_powers_of_10_32[]; + static const uint64_t zero_or_powers_of_10_64[]; +}; + +// Maps bsr(n) to ceil(log10(pow(2, bsr(n) + 1) - 1)). +// This is a function instead of an array to workaround a bug in GCC10 (#1810). +FMT_INLINE uint16_t bsr2log10(int bsr) { + static constexpr uint16_t data[] = { + 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, + 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9, 10, 10, 10, + 10, 11, 11, 11, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 15, 15, + 15, 16, 16, 16, 16, 17, 17, 17, 18, 18, 18, 19, 19, 19, 19, 20}; + return data[bsr]; +} + +#ifndef FMT_EXPORTED +FMT_EXTERN template struct basic_data<void>; +#endif + +// This is a struct rather than an alias to avoid shadowing warnings in gcc. +struct data : basic_data<> {}; + +#ifdef FMT_BUILTIN_CLZLL +// Returns the number of decimal digits in n. Leading zeros are not counted +// except for n == 0 in which case count_digits returns 1. +inline int count_digits(uint64_t n) { + // https://github.com/fmtlib/format-benchmark/blob/master/digits10 + auto t = bsr2log10(FMT_BUILTIN_CLZLL(n | 1) ^ 63); + return t - (n < data::zero_or_powers_of_10_64_new[t]); +} +#else +// Fallback version of count_digits used when __builtin_clz is not available. +inline int count_digits(uint64_t n) { + int count = 1; + for (;;) { + // Integer division is slow so do it for a group of four digits instead + // of for every digit. The idea comes from the talk by Alexandrescu + // "Three Optimization Tips for C++". See speed-test for a comparison. + if (n < 10) return count; + if (n < 100) return count + 1; + if (n < 1000) return count + 2; + if (n < 10000) return count + 3; + n /= 10000u; + count += 4; + } +} +#endif + +#if FMT_USE_INT128 +inline int count_digits(uint128_t n) { + int count = 1; + for (;;) { + // Integer division is slow so do it for a group of four digits instead + // of for every digit. The idea comes from the talk by Alexandrescu + // "Three Optimization Tips for C++". See speed-test for a comparison. + if (n < 10) return count; + if (n < 100) return count + 1; + if (n < 1000) return count + 2; + if (n < 10000) return count + 3; + n /= 10000U; + count += 4; + } +} +#endif + +// Counts the number of digits in n. BITS = log2(radix). +template <unsigned BITS, typename UInt> inline int count_digits(UInt n) { + int num_digits = 0; + do { + ++num_digits; + } while ((n >>= BITS) != 0); + return num_digits; +} + +template <> int count_digits<4>(detail::fallback_uintptr n); + +#if FMT_GCC_VERSION || FMT_CLANG_VERSION +# define FMT_ALWAYS_INLINE inline __attribute__((always_inline)) +#elif FMT_MSC_VER +# define FMT_ALWAYS_INLINE __forceinline +#else +# define FMT_ALWAYS_INLINE inline +#endif + +// To suppress unnecessary security cookie checks +#if FMT_MSC_VER && !FMT_CLANG_VERSION +# define FMT_SAFEBUFFERS __declspec(safebuffers) +#else +# define FMT_SAFEBUFFERS +#endif + +#ifdef FMT_BUILTIN_CLZ +// Optional version of count_digits for better performance on 32-bit platforms. +inline int count_digits(uint32_t n) { + auto t = bsr2log10(FMT_BUILTIN_CLZ(n | 1) ^ 31); + return t - (n < data::zero_or_powers_of_10_32_new[t]); +} +#endif + +template <typename Int> constexpr int digits10() FMT_NOEXCEPT { + return std::numeric_limits<Int>::digits10; +} +template <> constexpr int digits10<int128_t>() FMT_NOEXCEPT { return 38; } +template <> constexpr int digits10<uint128_t>() FMT_NOEXCEPT { return 38; } + +template <typename Char> FMT_API std::string grouping_impl(locale_ref loc); +template <typename Char> inline std::string grouping(locale_ref loc) { + return grouping_impl<char>(loc); +} +template <> inline std::string grouping<wchar_t>(locale_ref loc) { + return grouping_impl<wchar_t>(loc); +} + +template <typename Char> FMT_API Char thousands_sep_impl(locale_ref loc); +template <typename Char> inline Char thousands_sep(locale_ref loc) { + return Char(thousands_sep_impl<char>(loc)); +} +template <> inline wchar_t thousands_sep(locale_ref loc) { + return thousands_sep_impl<wchar_t>(loc); +} + +template <typename Char> FMT_API Char decimal_point_impl(locale_ref loc); +template <typename Char> inline Char decimal_point(locale_ref loc) { + return Char(decimal_point_impl<char>(loc)); +} +template <> inline wchar_t decimal_point(locale_ref loc) { + return decimal_point_impl<wchar_t>(loc); +} + +// Compares two characters for equality. +template <typename Char> bool equal2(const Char* lhs, const char* rhs) { + return lhs[0] == rhs[0] && lhs[1] == rhs[1]; +} +inline bool equal2(const char* lhs, const char* rhs) { + return memcmp(lhs, rhs, 2) == 0; +} + +// Copies two characters from src to dst. +template <typename Char> void copy2(Char* dst, const char* src) { + *dst++ = static_cast<Char>(*src++); + *dst = static_cast<Char>(*src); +} +FMT_INLINE void copy2(char* dst, const char* src) { memcpy(dst, src, 2); } + +template <typename Iterator> struct format_decimal_result { + Iterator begin; + Iterator end; +}; + +// Formats a decimal unsigned integer value writing into out pointing to a +// buffer of specified size. The caller must ensure that the buffer is large +// enough. +template <typename Char, typename UInt> +inline format_decimal_result<Char*> format_decimal(Char* out, UInt value, + int size) { + FMT_ASSERT(size >= count_digits(value), "invalid digit count"); + out += size; + Char* end = out; + while (value >= 100) { + // Integer division is slow so do it for a group of two digits instead + // of for every digit. The idea comes from the talk by Alexandrescu + // "Three Optimization Tips for C++". See speed-test for a comparison. + out -= 2; + copy2(out, data::digits[value % 100]); + value /= 100; + } + if (value < 10) { + *--out = static_cast<Char>('0' + value); + return {out, end}; + } + out -= 2; + copy2(out, data::digits[value]); + return {out, end}; +} + +template <typename Char, typename UInt, typename Iterator, + FMT_ENABLE_IF(!std::is_pointer<remove_cvref_t<Iterator>>::value)> +inline format_decimal_result<Iterator> format_decimal(Iterator out, UInt value, + int size) { + // Buffer is large enough to hold all digits (digits10 + 1). + Char buffer[digits10<UInt>() + 1]; + auto end = format_decimal(buffer, value, size).end; + return {out, detail::copy_str<Char>(buffer, end, out)}; +} + +template <unsigned BASE_BITS, typename Char, typename UInt> +inline Char* format_uint(Char* buffer, UInt value, int num_digits, + bool upper = false) { + buffer += num_digits; + Char* end = buffer; + do { + const char* digits = upper ? "0123456789ABCDEF" : data::hex_digits; + unsigned digit = (value & ((1 << BASE_BITS) - 1)); + *--buffer = static_cast<Char>(BASE_BITS < 4 ? static_cast<char>('0' + digit) + : digits[digit]); + } while ((value >>= BASE_BITS) != 0); + return end; +} + +template <unsigned BASE_BITS, typename Char> +Char* format_uint(Char* buffer, detail::fallback_uintptr n, int num_digits, + bool = false) { + auto char_digits = std::numeric_limits<unsigned char>::digits / 4; + int start = (num_digits + char_digits - 1) / char_digits - 1; + if (int start_digits = num_digits % char_digits) { + unsigned value = n.value[start--]; + buffer = format_uint<BASE_BITS>(buffer, value, start_digits); + } + for (; start >= 0; --start) { + unsigned value = n.value[start]; + buffer += char_digits; + auto p = buffer; + for (int i = 0; i < char_digits; ++i) { + unsigned digit = (value & ((1 << BASE_BITS) - 1)); + *--p = static_cast<Char>(data::hex_digits[digit]); + value >>= BASE_BITS; + } + } + return buffer; +} + +template <unsigned BASE_BITS, typename Char, typename It, typename UInt> +inline It format_uint(It out, UInt value, int num_digits, bool upper = false) { + if (auto ptr = to_pointer<Char>(out, to_unsigned(num_digits))) { + format_uint<BASE_BITS>(ptr, value, num_digits, upper); + return out; + } + // Buffer should be large enough to hold all digits (digits / BASE_BITS + 1). + char buffer[num_bits<UInt>() / BASE_BITS + 1]; + format_uint<BASE_BITS>(buffer, value, num_digits, upper); + return detail::copy_str<Char>(buffer, buffer + num_digits, out); +} + +// A converter from UTF-8 to UTF-16. +class utf8_to_utf16 { + private: + wmemory_buffer buffer_; + + public: + FMT_API explicit utf8_to_utf16(string_view s); + operator wstring_view() const { return {&buffer_[0], size()}; } + size_t size() const { return buffer_.size() - 1; } + const wchar_t* c_str() const { return &buffer_[0]; } + std::wstring str() const { return {&buffer_[0], size()}; } +}; + +template <typename T = void> struct null {}; + +// Workaround an array initialization issue in gcc 4.8. +template <typename Char> struct fill_t { + private: + enum { max_size = 4 }; + Char data_[max_size] = {Char(' '), Char(0), Char(0), Char(0)}; + unsigned char size_ = 1; + + public: + FMT_CONSTEXPR void operator=(basic_string_view<Char> s) { + auto size = s.size(); + if (size > max_size) { + FMT_THROW(format_error("invalid fill")); + return; + } + for (size_t i = 0; i < size; ++i) data_[i] = s[i]; + size_ = static_cast<unsigned char>(size); + } + + size_t size() const { return size_; } + const Char* data() const { return data_; } + + FMT_CONSTEXPR Char& operator[](size_t index) { return data_[index]; } + FMT_CONSTEXPR const Char& operator[](size_t index) const { + return data_[index]; + } +}; +} // namespace detail + +// We cannot use enum classes as bit fields because of a gcc bug +// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61414. +namespace align { +enum type { none, left, right, center, numeric }; +} +using align_t = align::type; + +namespace sign { +enum type { none, minus, plus, space }; +} +using sign_t = sign::type; + +// Format specifiers for built-in and string types. +template <typename Char> struct basic_format_specs { + int width; + int precision; + char type; + align_t align : 4; + sign_t sign : 3; + bool alt : 1; // Alternate form ('#'). + detail::fill_t<Char> fill; + + constexpr basic_format_specs() + : width(0), + precision(-1), + type(0), + align(align::none), + sign(sign::none), + alt(false) {} +}; + +using format_specs = basic_format_specs<char>; + +namespace detail { +namespace dragonbox { + +// Type-specific information that Dragonbox uses. +template <class T> struct float_info; + +template <> struct float_info<float> { + using carrier_uint = uint32_t; + static const int significand_bits = 23; + static const int exponent_bits = 8; + static const int min_exponent = -126; + static const int max_exponent = 127; + static const int exponent_bias = -127; + static const int decimal_digits = 9; + static const int kappa = 1; + static const int big_divisor = 100; + static const int small_divisor = 10; + static const int min_k = -31; + static const int max_k = 46; + static const int cache_bits = 64; + static const int divisibility_check_by_5_threshold = 39; + static const int case_fc_pm_half_lower_threshold = -1; + static const int case_fc_pm_half_upper_threshold = 6; + static const int case_fc_lower_threshold = -2; + static const int case_fc_upper_threshold = 6; + static const int case_shorter_interval_left_endpoint_lower_threshold = 2; + static const int case_shorter_interval_left_endpoint_upper_threshold = 3; + static const int shorter_interval_tie_lower_threshold = -35; + static const int shorter_interval_tie_upper_threshold = -35; + static const int max_trailing_zeros = 7; +}; + +template <> struct float_info<double> { + using carrier_uint = uint64_t; + static const int significand_bits = 52; + static const int exponent_bits = 11; + static const int min_exponent = -1022; + static const int max_exponent = 1023; + static const int exponent_bias = -1023; + static const int decimal_digits = 17; + static const int kappa = 2; + static const int big_divisor = 1000; + static const int small_divisor = 100; + static const int min_k = -292; + static const int max_k = 326; + static const int cache_bits = 128; + static const int divisibility_check_by_5_threshold = 86; + static const int case_fc_pm_half_lower_threshold = -2; + static const int case_fc_pm_half_upper_threshold = 9; + static const int case_fc_lower_threshold = -4; + static const int case_fc_upper_threshold = 9; + static const int case_shorter_interval_left_endpoint_lower_threshold = 2; + static const int case_shorter_interval_left_endpoint_upper_threshold = 3; + static const int shorter_interval_tie_lower_threshold = -77; + static const int shorter_interval_tie_upper_threshold = -77; + static const int max_trailing_zeros = 16; +}; + +template <typename T> struct decimal_fp { + using significand_type = typename float_info<T>::carrier_uint; + significand_type significand; + int exponent; +}; + +template <typename T> FMT_API decimal_fp<T> to_decimal(T x) FMT_NOEXCEPT; +} // namespace dragonbox + +template <typename T> +constexpr typename dragonbox::float_info<T>::carrier_uint exponent_mask() { + using uint = typename dragonbox::float_info<T>::carrier_uint; + return ((uint(1) << dragonbox::float_info<T>::exponent_bits) - 1) + << dragonbox::float_info<T>::significand_bits; +} + +// A floating-point presentation format. +enum class float_format : unsigned char { + general, // General: exponent notation or fixed point based on magnitude. + exp, // Exponent notation with the default precision of 6, e.g. 1.2e-3. + fixed, // Fixed point with the default precision of 6, e.g. 0.0012. + hex +}; + +struct float_specs { + int precision; + float_format format : 8; + sign_t sign : 8; + bool upper : 1; + bool locale : 1; + bool binary32 : 1; + bool use_grisu : 1; + bool showpoint : 1; +}; + +// Writes the exponent exp in the form "[+-]d{2,3}" to buffer. +template <typename Char, typename It> It write_exponent(int exp, It it) { + FMT_ASSERT(-10000 < exp && exp < 10000, "exponent out of range"); + if (exp < 0) { + *it++ = static_cast<Char>('-'); + exp = -exp; + } else { + *it++ = static_cast<Char>('+'); + } + if (exp >= 100) { + const char* top = data::digits[exp / 100]; + if (exp >= 1000) *it++ = static_cast<Char>(top[0]); + *it++ = static_cast<Char>(top[1]); + exp %= 100; + } + const char* d = data::digits[exp]; + *it++ = static_cast<Char>(d[0]); + *it++ = static_cast<Char>(d[1]); + return it; +} + +template <typename T> +int format_float(T value, int precision, float_specs specs, buffer<char>& buf); + +// Formats a floating-point number with snprintf. +template <typename T> +int snprintf_float(T value, int precision, float_specs specs, + buffer<char>& buf); + +template <typename T> T promote_float(T value) { return value; } +inline double promote_float(float value) { return static_cast<double>(value); } + +template <typename Handler> +FMT_CONSTEXPR void handle_int_type_spec(char spec, Handler&& handler) { + switch (spec) { + case 0: + case 'd': + handler.on_dec(); + break; + case 'x': + case 'X': + handler.on_hex(); + break; + case 'b': + case 'B': + handler.on_bin(); + break; + case 'o': + handler.on_oct(); + break; +#ifdef FMT_DEPRECATED_N_SPECIFIER + case 'n': +#endif + case 'L': + handler.on_num(); + break; + case 'c': + handler.on_chr(); + break; + default: + handler.on_error(); + } +} + +template <typename ErrorHandler = error_handler, typename Char> +FMT_CONSTEXPR float_specs parse_float_type_spec( + const basic_format_specs<Char>& specs, ErrorHandler&& eh = {}) { + auto result = float_specs(); + result.showpoint = specs.alt; + switch (specs.type) { + case 0: + result.format = float_format::general; + result.showpoint |= specs.precision > 0; + break; + case 'G': + result.upper = true; + FMT_FALLTHROUGH; + case 'g': + result.format = float_format::general; + break; + case 'E': + result.upper = true; + FMT_FALLTHROUGH; + case 'e': + result.format = float_format::exp; + result.showpoint |= specs.precision != 0; + break; + case 'F': + result.upper = true; + FMT_FALLTHROUGH; + case 'f': + result.format = float_format::fixed; + result.showpoint |= specs.precision != 0; + break; + case 'A': + result.upper = true; + FMT_FALLTHROUGH; + case 'a': + result.format = float_format::hex; + break; +#ifdef FMT_DEPRECATED_N_SPECIFIER + case 'n': +#endif + case 'L': + result.locale = true; + break; + default: + eh.on_error("invalid type specifier"); + break; + } + return result; +} + +template <typename Char, typename Handler> +FMT_CONSTEXPR void handle_char_specs(const basic_format_specs<Char>* specs, + Handler&& handler) { + if (!specs) return handler.on_char(); + if (specs->type && specs->type != 'c') return handler.on_int(); + if (specs->align == align::numeric || specs->sign != sign::none || specs->alt) + handler.on_error("invalid format specifier for char"); + handler.on_char(); +} + +template <typename Char, typename Handler> +FMT_CONSTEXPR void handle_cstring_type_spec(Char spec, Handler&& handler) { + if (spec == 0 || spec == 's') + handler.on_string(); + else if (spec == 'p') + handler.on_pointer(); + else + handler.on_error("invalid type specifier"); +} + +template <typename Char, typename ErrorHandler> +FMT_CONSTEXPR void check_string_type_spec(Char spec, ErrorHandler&& eh) { + if (spec != 0 && spec != 's') eh.on_error("invalid type specifier"); +} + +template <typename Char, typename ErrorHandler> +FMT_CONSTEXPR void check_pointer_type_spec(Char spec, ErrorHandler&& eh) { + if (spec != 0 && spec != 'p') eh.on_error("invalid type specifier"); +} + +template <typename ErrorHandler> class int_type_checker : private ErrorHandler { + public: + FMT_CONSTEXPR explicit int_type_checker(ErrorHandler eh) : ErrorHandler(eh) {} + + FMT_CONSTEXPR void on_dec() {} + FMT_CONSTEXPR void on_hex() {} + FMT_CONSTEXPR void on_bin() {} + FMT_CONSTEXPR void on_oct() {} + FMT_CONSTEXPR void on_num() {} + FMT_CONSTEXPR void on_chr() {} + + FMT_CONSTEXPR void on_error() { + ErrorHandler::on_error("invalid type specifier"); + } +}; + +template <typename ErrorHandler> +class char_specs_checker : public ErrorHandler { + private: + char type_; + + public: + FMT_CONSTEXPR char_specs_checker(char type, ErrorHandler eh) + : ErrorHandler(eh), type_(type) {} + + FMT_CONSTEXPR void on_int() { + handle_int_type_spec(type_, int_type_checker<ErrorHandler>(*this)); + } + FMT_CONSTEXPR void on_char() {} +}; + +template <typename ErrorHandler> +class cstring_type_checker : public ErrorHandler { + public: + FMT_CONSTEXPR explicit cstring_type_checker(ErrorHandler eh) + : ErrorHandler(eh) {} + + FMT_CONSTEXPR void on_string() {} + FMT_CONSTEXPR void on_pointer() {} +}; + +template <typename OutputIt, typename Char> +FMT_NOINLINE OutputIt fill(OutputIt it, size_t n, const fill_t<Char>& fill) { + auto fill_size = fill.size(); + if (fill_size == 1) return std::fill_n(it, n, fill[0]); + for (size_t i = 0; i < n; ++i) it = std::copy_n(fill.data(), fill_size, it); + return it; +} + +// Writes the output of f, padded according to format specifications in specs. +// size: output size in code units. +// width: output display width in (terminal) column positions. +template <align::type align = align::left, typename OutputIt, typename Char, + typename F> +inline OutputIt write_padded(OutputIt out, + const basic_format_specs<Char>& specs, size_t size, + size_t width, F&& f) { + static_assert(align == align::left || align == align::right, ""); + unsigned spec_width = to_unsigned(specs.width); + size_t padding = spec_width > width ? spec_width - width : 0; + auto* shifts = align == align::left ? data::left_padding_shifts + : data::right_padding_shifts; + size_t left_padding = padding >> shifts[specs.align]; + auto it = reserve(out, size + padding * specs.fill.size()); + it = fill(it, left_padding, specs.fill); + it = f(it); + it = fill(it, padding - left_padding, specs.fill); + return base_iterator(out, it); +} + +template <align::type align = align::left, typename OutputIt, typename Char, + typename F> +inline OutputIt write_padded(OutputIt out, + const basic_format_specs<Char>& specs, size_t size, + F&& f) { + return write_padded<align>(out, specs, size, size, f); +} + +template <typename Char, typename OutputIt> +OutputIt write_bytes(OutputIt out, string_view bytes, + const basic_format_specs<Char>& specs) { + using iterator = remove_reference_t<decltype(reserve(out, 0))>; + return write_padded(out, specs, bytes.size(), [bytes](iterator it) { + const char* data = bytes.data(); + return copy_str<Char>(data, data + bytes.size(), it); + }); +} + +// Data for write_int that doesn't depend on output iterator type. It is used to +// avoid template code bloat. +template <typename Char> struct write_int_data { + size_t size; + size_t padding; + + write_int_data(int num_digits, string_view prefix, + const basic_format_specs<Char>& specs) + : size(prefix.size() + to_unsigned(num_digits)), padding(0) { + if (specs.align == align::numeric) { + auto width = to_unsigned(specs.width); + if (width > size) { + padding = width - size; + size = width; + } + } else if (specs.precision > num_digits) { + size = prefix.size() + to_unsigned(specs.precision); + padding = to_unsigned(specs.precision - num_digits); + } + } +}; + +// Writes an integer in the format +// <left-padding><prefix><numeric-padding><digits><right-padding> +// where <digits> are written by f(it). +template <typename OutputIt, typename Char, typename F> +OutputIt write_int(OutputIt out, int num_digits, string_view prefix, + const basic_format_specs<Char>& specs, F f) { + auto data = write_int_data<Char>(num_digits, prefix, specs); + using iterator = remove_reference_t<decltype(reserve(out, 0))>; + return write_padded<align::right>(out, specs, data.size, [=](iterator it) { + if (prefix.size() != 0) + it = copy_str<Char>(prefix.begin(), prefix.end(), it); + it = std::fill_n(it, data.padding, static_cast<Char>('0')); + return f(it); + }); +} + +template <typename StrChar, typename Char, typename OutputIt> +OutputIt write(OutputIt out, basic_string_view<StrChar> s, + const basic_format_specs<Char>& specs) { + auto data = s.data(); + auto size = s.size(); + if (specs.precision >= 0 && to_unsigned(specs.precision) < size) + size = code_point_index(s, to_unsigned(specs.precision)); + auto width = specs.width != 0 + ? count_code_points(basic_string_view<StrChar>(data, size)) + : 0; + using iterator = remove_reference_t<decltype(reserve(out, 0))>; + return write_padded(out, specs, size, width, [=](iterator it) { + return copy_str<Char>(data, data + size, it); + }); +} + +// The handle_int_type_spec handler that writes an integer. +template <typename OutputIt, typename Char, typename UInt> struct int_writer { + OutputIt out; + locale_ref locale; + const basic_format_specs<Char>& specs; + UInt abs_value; + char prefix[4]; + unsigned prefix_size; + + using iterator = + remove_reference_t<decltype(reserve(std::declval<OutputIt&>(), 0))>; + + string_view get_prefix() const { return string_view(prefix, prefix_size); } + + template <typename Int> + int_writer(OutputIt output, locale_ref loc, Int value, + const basic_format_specs<Char>& s) + : out(output), + locale(loc), + specs(s), + abs_value(static_cast<UInt>(value)), + prefix_size(0) { + static_assert(std::is_same<uint32_or_64_or_128_t<Int>, UInt>::value, ""); + if (is_negative(value)) { + prefix[0] = '-'; + ++prefix_size; + abs_value = 0 - abs_value; + } else if (specs.sign != sign::none && specs.sign != sign::minus) { + prefix[0] = specs.sign == sign::plus ? '+' : ' '; + ++prefix_size; + } + } + + void on_dec() { + auto num_digits = count_digits(abs_value); + out = write_int( + out, num_digits, get_prefix(), specs, [this, num_digits](iterator it) { + return format_decimal<Char>(it, abs_value, num_digits).end; + }); + } + + void on_hex() { + if (specs.alt) { + prefix[prefix_size++] = '0'; + prefix[prefix_size++] = specs.type; + } + int num_digits = count_digits<4>(abs_value); + out = write_int(out, num_digits, get_prefix(), specs, + [this, num_digits](iterator it) { + return format_uint<4, Char>(it, abs_value, num_digits, + specs.type != 'x'); + }); + } + + void on_bin() { + if (specs.alt) { + prefix[prefix_size++] = '0'; + prefix[prefix_size++] = static_cast<char>(specs.type); + } + int num_digits = count_digits<1>(abs_value); + out = write_int(out, num_digits, get_prefix(), specs, + [this, num_digits](iterator it) { + return format_uint<1, Char>(it, abs_value, num_digits); + }); + } + + void on_oct() { + int num_digits = count_digits<3>(abs_value); + if (specs.alt && specs.precision <= num_digits && abs_value != 0) { + // Octal prefix '0' is counted as a digit, so only add it if precision + // is not greater than the number of digits. + prefix[prefix_size++] = '0'; + } + out = write_int(out, num_digits, get_prefix(), specs, + [this, num_digits](iterator it) { + return format_uint<3, Char>(it, abs_value, num_digits); + }); + } + + enum { sep_size = 1 }; + + void on_num() { + std::string groups = grouping<Char>(locale); + if (groups.empty()) return on_dec(); + auto sep = thousands_sep<Char>(locale); + if (!sep) return on_dec(); + int num_digits = count_digits(abs_value); + int size = num_digits, n = num_digits; + std::string::const_iterator group = groups.cbegin(); + while (group != groups.cend() && n > *group && *group > 0 && + *group != max_value<char>()) { + size += sep_size; + n -= *group; + ++group; + } + if (group == groups.cend()) size += sep_size * ((n - 1) / groups.back()); + char digits[40]; + format_decimal(digits, abs_value, num_digits); + basic_memory_buffer<Char> buffer; + size += static_cast<int>(prefix_size); + const auto usize = to_unsigned(size); + buffer.resize(usize); + basic_string_view<Char> s(&sep, sep_size); + // Index of a decimal digit with the least significant digit having index 0. + int digit_index = 0; + group = groups.cbegin(); + auto p = buffer.data() + size - 1; + for (int i = num_digits - 1; i > 0; --i) { + *p-- = static_cast<Char>(digits[i]); + if (*group <= 0 || ++digit_index % *group != 0 || + *group == max_value<char>()) + continue; + if (group + 1 != groups.cend()) { + digit_index = 0; + ++group; + } + std::uninitialized_copy(s.data(), s.data() + s.size(), + make_checked(p, s.size())); + p -= s.size(); + } + *p-- = static_cast<Char>(*digits); + if (prefix_size != 0) *p = static_cast<Char>('-'); + auto data = buffer.data(); + out = write_padded<align::right>( + out, specs, usize, usize, + [=](iterator it) { return copy_str<Char>(data, data + size, it); }); + } + + void on_chr() { *out++ = static_cast<Char>(abs_value); } + + FMT_NORETURN void on_error() { + FMT_THROW(format_error("invalid type specifier")); + } +}; + +template <typename Char, typename OutputIt> +OutputIt write_nonfinite(OutputIt out, bool isinf, + const basic_format_specs<Char>& specs, + const float_specs& fspecs) { + auto str = + isinf ? (fspecs.upper ? "INF" : "inf") : (fspecs.upper ? "NAN" : "nan"); + constexpr size_t str_size = 3; + auto sign = fspecs.sign; + auto size = str_size + (sign ? 1 : 0); + using iterator = remove_reference_t<decltype(reserve(out, 0))>; + return write_padded(out, specs, size, [=](iterator it) { + if (sign) *it++ = static_cast<Char>(data::signs[sign]); + return copy_str<Char>(str, str + str_size, it); + }); +} + +// A decimal floating-point number significand * pow(10, exp). +struct big_decimal_fp { + const char* significand; + int significand_size; + int exponent; +}; + +inline int get_significand_size(const big_decimal_fp& fp) { + return fp.significand_size; +} +template <typename T> +inline int get_significand_size(const dragonbox::decimal_fp<T>& fp) { + return count_digits(fp.significand); +} + +template <typename Char, typename OutputIt> +inline OutputIt write_significand(OutputIt out, const char* significand, + int& significand_size) { + return copy_str<Char>(significand, significand + significand_size, out); +} +template <typename Char, typename OutputIt, typename UInt> +inline OutputIt write_significand(OutputIt out, UInt significand, + int significand_size) { + return format_decimal<Char>(out, significand, significand_size).end; +} + +template <typename Char, typename UInt, + FMT_ENABLE_IF(std::is_integral<UInt>::value)> +inline Char* write_significand(Char* out, UInt significand, + int significand_size, int integral_size, + Char decimal_point) { + if (!decimal_point) + return format_decimal(out, significand, significand_size).end; + auto end = format_decimal(out + 1, significand, significand_size).end; + if (integral_size == 1) + out[0] = out[1]; + else + std::copy_n(out + 1, integral_size, out); + out[integral_size] = decimal_point; + return end; +} + +template <typename OutputIt, typename UInt, typename Char, + FMT_ENABLE_IF(!std::is_pointer<remove_cvref_t<OutputIt>>::value)> +inline OutputIt write_significand(OutputIt out, UInt significand, + int significand_size, int integral_size, + Char decimal_point) { + // Buffer is large enough to hold digits (digits10 + 1) and a decimal point. + Char buffer[digits10<UInt>() + 2]; + auto end = write_significand(buffer, significand, significand_size, + integral_size, decimal_point); + return detail::copy_str<Char>(buffer, end, out); +} + +template <typename OutputIt, typename Char> +inline OutputIt write_significand(OutputIt out, const char* significand, + int significand_size, int integral_size, + Char decimal_point) { + out = detail::copy_str<Char>(significand, significand + integral_size, out); + if (!decimal_point) return out; + *out++ = decimal_point; + return detail::copy_str<Char>(significand + integral_size, + significand + significand_size, out); +} + +template <typename OutputIt, typename DecimalFP, typename Char> +OutputIt write_float(OutputIt out, const DecimalFP& fp, + const basic_format_specs<Char>& specs, float_specs fspecs, + Char decimal_point) { + auto significand = fp.significand; + int significand_size = get_significand_size(fp); + static const Char zero = static_cast<Char>('0'); + auto sign = fspecs.sign; + size_t size = to_unsigned(significand_size) + (sign ? 1 : 0); + using iterator = remove_reference_t<decltype(reserve(out, 0))>; + + int output_exp = fp.exponent + significand_size - 1; + auto use_exp_format = [=]() { + if (fspecs.format == float_format::exp) return true; + if (fspecs.format != float_format::general) return false; + // Use the fixed notation if the exponent is in [exp_lower, exp_upper), + // e.g. 0.0001 instead of 1e-04. Otherwise use the exponent notation. + const int exp_lower = -4, exp_upper = 16; + return output_exp < exp_lower || + output_exp >= (fspecs.precision > 0 ? fspecs.precision : exp_upper); + }; + if (use_exp_format()) { + int num_zeros = 0; + if (fspecs.showpoint) { + num_zeros = (std::max)(fspecs.precision - significand_size, 0); + size += to_unsigned(num_zeros); + } else if (significand_size == 1) { + decimal_point = Char(); + } + auto abs_output_exp = output_exp >= 0 ? output_exp : -output_exp; + int exp_digits = 2; + if (abs_output_exp >= 100) exp_digits = abs_output_exp >= 1000 ? 4 : 3; + + size += to_unsigned((decimal_point ? 1 : 0) + 2 + exp_digits); + char exp_char = fspecs.upper ? 'E' : 'e'; + auto write = [=](iterator it) { + if (sign) *it++ = static_cast<Char>(data::signs[sign]); + // Insert a decimal point after the first digit and add an exponent. + it = write_significand(it, significand, significand_size, 1, + decimal_point); + if (num_zeros > 0) it = std::fill_n(it, num_zeros, zero); + *it++ = static_cast<Char>(exp_char); + return write_exponent<Char>(output_exp, it); + }; + return specs.width > 0 ? write_padded<align::right>(out, specs, size, write) + : base_iterator(out, write(reserve(out, size))); + } + + int exp = fp.exponent + significand_size; + if (fp.exponent >= 0) { + // 1234e5 -> 123400000[.0+] + size += to_unsigned(fp.exponent); + int num_zeros = fspecs.precision - exp; +#ifdef FMT_FUZZ + if (num_zeros > 5000) + throw std::runtime_error("fuzz mode - avoiding excessive cpu use"); +#endif + if (fspecs.showpoint) { + if (num_zeros <= 0 && fspecs.format != float_format::fixed) num_zeros = 1; + if (num_zeros > 0) size += to_unsigned(num_zeros); + } + return write_padded<align::right>(out, specs, size, [&](iterator it) { + if (sign) *it++ = static_cast<Char>(data::signs[sign]); + it = write_significand<Char>(it, significand, significand_size); + it = std::fill_n(it, fp.exponent, zero); + if (!fspecs.showpoint) return it; + *it++ = decimal_point; + return num_zeros > 0 ? std::fill_n(it, num_zeros, zero) : it; + }); + } else if (exp > 0) { + // 1234e-2 -> 12.34[0+] + int num_zeros = fspecs.showpoint ? fspecs.precision - significand_size : 0; + size += 1 + to_unsigned(num_zeros > 0 ? num_zeros : 0); + return write_padded<align::right>(out, specs, size, [&](iterator it) { + if (sign) *it++ = static_cast<Char>(data::signs[sign]); + it = write_significand(it, significand, significand_size, exp, + decimal_point); + return num_zeros > 0 ? std::fill_n(it, num_zeros, zero) : it; + }); + } + // 1234e-6 -> 0.001234 + int num_zeros = -exp; + if (significand_size == 0 && fspecs.precision >= 0 && + fspecs.precision < num_zeros) { + num_zeros = fspecs.precision; + } + size += 2 + to_unsigned(num_zeros); + return write_padded<align::right>(out, specs, size, [&](iterator it) { + if (sign) *it++ = static_cast<Char>(data::signs[sign]); + *it++ = zero; + if (num_zeros == 0 && significand_size == 0 && !fspecs.showpoint) return it; + *it++ = decimal_point; + it = std::fill_n(it, num_zeros, zero); + return write_significand<Char>(it, significand, significand_size); + }); +} + +template <typename Char, typename OutputIt, typename T, + FMT_ENABLE_IF(std::is_floating_point<T>::value)> +OutputIt write(OutputIt out, T value, basic_format_specs<Char> specs, + locale_ref loc = {}) { + if (const_check(!is_supported_floating_point(value))) return out; + float_specs fspecs = parse_float_type_spec(specs); + fspecs.sign = specs.sign; + if (std::signbit(value)) { // value < 0 is false for NaN so use signbit. + fspecs.sign = sign::minus; + value = -value; + } else if (fspecs.sign == sign::minus) { + fspecs.sign = sign::none; + } + + if (!std::isfinite(value)) + return write_nonfinite(out, std::isinf(value), specs, fspecs); + + if (specs.align == align::numeric && fspecs.sign) { + auto it = reserve(out, 1); + *it++ = static_cast<Char>(data::signs[fspecs.sign]); + out = base_iterator(out, it); + fspecs.sign = sign::none; + if (specs.width != 0) --specs.width; + } + + memory_buffer buffer; + if (fspecs.format == float_format::hex) { + if (fspecs.sign) buffer.push_back(data::signs[fspecs.sign]); + snprintf_float(promote_float(value), specs.precision, fspecs, buffer); + return write_bytes(out, {buffer.data(), buffer.size()}, specs); + } + int precision = specs.precision >= 0 || !specs.type ? specs.precision : 6; + if (fspecs.format == float_format::exp) { + if (precision == max_value<int>()) + FMT_THROW(format_error("number is too big")); + else + ++precision; + } + if (const_check(std::is_same<T, float>())) fspecs.binary32 = true; + fspecs.use_grisu = is_fast_float<T>(); + int exp = format_float(promote_float(value), precision, fspecs, buffer); + fspecs.precision = precision; + Char point = + fspecs.locale ? decimal_point<Char>(loc) : static_cast<Char>('.'); + auto fp = big_decimal_fp{buffer.data(), static_cast<int>(buffer.size()), exp}; + return write_float(out, fp, specs, fspecs, point); +} + +template <typename Char, typename OutputIt, typename T, + FMT_ENABLE_IF(is_fast_float<T>::value)> +OutputIt write(OutputIt out, T value) { + if (const_check(!is_supported_floating_point(value))) return out; + + using floaty = conditional_t<std::is_same<T, long double>::value, double, T>; + using uint = typename dragonbox::float_info<floaty>::carrier_uint; + auto bits = bit_cast<uint>(value); + + auto fspecs = float_specs(); + auto sign_bit = bits & (uint(1) << (num_bits<uint>() - 1)); + if (sign_bit != 0) { + fspecs.sign = sign::minus; + value = -value; + } + + static const auto specs = basic_format_specs<Char>(); + uint mask = exponent_mask<floaty>(); + if ((bits & mask) == mask) + return write_nonfinite(out, std::isinf(value), specs, fspecs); + + auto dec = dragonbox::to_decimal(static_cast<floaty>(value)); + return write_float(out, dec, specs, fspecs, static_cast<Char>('.')); +} + +template <typename Char, typename OutputIt, typename T, + FMT_ENABLE_IF(std::is_floating_point<T>::value && + !is_fast_float<T>::value)> +inline OutputIt write(OutputIt out, T value) { + return write(out, value, basic_format_specs<Char>()); +} + +template <typename Char, typename OutputIt> +OutputIt write_char(OutputIt out, Char value, + const basic_format_specs<Char>& specs) { + using iterator = remove_reference_t<decltype(reserve(out, 0))>; + return write_padded(out, specs, 1, [=](iterator it) { + *it++ = value; + return it; + }); +} + +template <typename Char, typename OutputIt, typename UIntPtr> +OutputIt write_ptr(OutputIt out, UIntPtr value, + const basic_format_specs<Char>* specs) { + int num_digits = count_digits<4>(value); + auto size = to_unsigned(num_digits) + size_t(2); + using iterator = remove_reference_t<decltype(reserve(out, 0))>; + auto write = [=](iterator it) { + *it++ = static_cast<Char>('0'); + *it++ = static_cast<Char>('x'); + return format_uint<4, Char>(it, value, num_digits); + }; + return specs ? write_padded<align::right>(out, *specs, size, write) + : base_iterator(out, write(reserve(out, size))); +} + +template <typename T> struct is_integral : std::is_integral<T> {}; +template <> struct is_integral<int128_t> : std::true_type {}; +template <> struct is_integral<uint128_t> : std::true_type {}; + +template <typename Char, typename OutputIt> +OutputIt write(OutputIt out, monostate) { + FMT_ASSERT(false, ""); + return out; +} + +template <typename Char, typename OutputIt, + FMT_ENABLE_IF(!std::is_same<Char, char>::value)> +OutputIt write(OutputIt out, string_view value) { + auto it = reserve(out, value.size()); + it = copy_str<Char>(value.begin(), value.end(), it); + return base_iterator(out, it); +} + +template <typename Char, typename OutputIt> +OutputIt write(OutputIt out, basic_string_view<Char> value) { + auto it = reserve(out, value.size()); + it = std::copy(value.begin(), value.end(), it); + return base_iterator(out, it); +} + +template <typename Char> +buffer_appender<Char> write(buffer_appender<Char> out, + basic_string_view<Char> value) { + get_container(out).append(value.begin(), value.end()); + return out; +} + +template <typename Char, typename OutputIt, typename T, + FMT_ENABLE_IF(is_integral<T>::value && + !std::is_same<T, bool>::value && + !std::is_same<T, Char>::value)> +OutputIt write(OutputIt out, T value) { + auto abs_value = static_cast<uint32_or_64_or_128_t<T>>(value); + bool negative = is_negative(value); + // Don't do -abs_value since it trips unsigned-integer-overflow sanitizer. + if (negative) abs_value = ~abs_value + 1; + int num_digits = count_digits(abs_value); + auto size = (negative ? 1 : 0) + static_cast<size_t>(num_digits); + auto it = reserve(out, size); + if (auto ptr = to_pointer<Char>(it, size)) { + if (negative) *ptr++ = static_cast<Char>('-'); + format_decimal<Char>(ptr, abs_value, num_digits); + return out; + } + if (negative) *it++ = static_cast<Char>('-'); + it = format_decimal<Char>(it, abs_value, num_digits).end; + return base_iterator(out, it); +} + +template <typename Char, typename OutputIt> +OutputIt write(OutputIt out, bool value) { + return write<Char>(out, string_view(value ? "true" : "false")); +} + +template <typename Char, typename OutputIt> +OutputIt write(OutputIt out, Char value) { + auto it = reserve(out, 1); + *it++ = value; + return base_iterator(out, it); +} + +template <typename Char, typename OutputIt> +OutputIt write(OutputIt out, const Char* value) { + if (!value) { + FMT_THROW(format_error("string pointer is null")); + } else { + auto length = std::char_traits<Char>::length(value); + out = write(out, basic_string_view<Char>(value, length)); + } + return out; +} + +template <typename Char, typename OutputIt> +OutputIt write(OutputIt out, const void* value) { + return write_ptr<Char>(out, to_uintptr(value), nullptr); +} + +template <typename Char, typename OutputIt, typename T> +auto write(OutputIt out, const T& value) -> typename std::enable_if< + mapped_type_constant<T, basic_format_context<OutputIt, Char>>::value == + type::custom_type, + OutputIt>::type { + using context_type = basic_format_context<OutputIt, Char>; + using formatter_type = + conditional_t<has_formatter<T, context_type>::value, + typename context_type::template formatter_type<T>, + fallback_formatter<T, Char>>; + context_type ctx(out, {}, {}); + return formatter_type().format(value, ctx); +} + +// An argument visitor that formats the argument and writes it via the output +// iterator. It's a class and not a generic lambda for compatibility with C++11. +template <typename OutputIt, typename Char> struct default_arg_formatter { + using context = basic_format_context<OutputIt, Char>; + + OutputIt out; + basic_format_args<context> args; + locale_ref loc; + + template <typename T> OutputIt operator()(T value) { + return write<Char>(out, value); + } + + OutputIt operator()(typename basic_format_arg<context>::handle handle) { + basic_format_parse_context<Char> parse_ctx({}); + basic_format_context<OutputIt, Char> format_ctx(out, args, loc); + handle.format(parse_ctx, format_ctx); + return format_ctx.out(); + } +}; + +template <typename OutputIt, typename Char, + typename ErrorHandler = error_handler> +class arg_formatter_base { + public: + using iterator = OutputIt; + using char_type = Char; + using format_specs = basic_format_specs<Char>; + + private: + iterator out_; + locale_ref locale_; + format_specs* specs_; + + // Attempts to reserve space for n extra characters in the output range. + // Returns a pointer to the reserved range or a reference to out_. + auto reserve(size_t n) -> decltype(detail::reserve(out_, n)) { + return detail::reserve(out_, n); + } + + using reserve_iterator = remove_reference_t<decltype( + detail::reserve(std::declval<iterator&>(), 0))>; + + template <typename T> void write_int(T value, const format_specs& spec) { + using uint_type = uint32_or_64_or_128_t<T>; + int_writer<iterator, Char, uint_type> w(out_, locale_, value, spec); + handle_int_type_spec(spec.type, w); + out_ = w.out; + } + + void write(char value) { + auto&& it = reserve(1); + *it++ = value; + } + + template <typename Ch, FMT_ENABLE_IF(std::is_same<Ch, Char>::value)> + void write(Ch value) { + out_ = detail::write<Char>(out_, value); + } + + void write(string_view value) { + auto&& it = reserve(value.size()); + it = copy_str<Char>(value.begin(), value.end(), it); + } + void write(wstring_view value) { + static_assert(std::is_same<Char, wchar_t>::value, ""); + auto&& it = reserve(value.size()); + it = std::copy(value.begin(), value.end(), it); + } + + template <typename Ch> + void write(const Ch* s, size_t size, const format_specs& specs) { + auto width = specs.width != 0 + ? count_code_points(basic_string_view<Ch>(s, size)) + : 0; + out_ = write_padded(out_, specs, size, width, [=](reserve_iterator it) { + return copy_str<Char>(s, s + size, it); + }); + } + + template <typename Ch> + void write(basic_string_view<Ch> s, const format_specs& specs = {}) { + out_ = detail::write(out_, s, specs); + } + + void write_pointer(const void* p) { + out_ = write_ptr<char_type>(out_, to_uintptr(p), specs_); + } + + struct char_spec_handler : ErrorHandler { + arg_formatter_base& formatter; + Char value; + + char_spec_handler(arg_formatter_base& f, Char val) + : formatter(f), value(val) {} + + void on_int() { + // char is only formatted as int if there are specs. + formatter.write_int(static_cast<int>(value), *formatter.specs_); + } + void on_char() { + if (formatter.specs_) + formatter.out_ = write_char(formatter.out_, value, *formatter.specs_); + else + formatter.write(value); + } + }; + + struct cstring_spec_handler : error_handler { + arg_formatter_base& formatter; + const Char* value; + + cstring_spec_handler(arg_formatter_base& f, const Char* val) + : formatter(f), value(val) {} + + void on_string() { formatter.write(value); } + void on_pointer() { formatter.write_pointer(value); } + }; + + protected: + iterator out() { return out_; } + format_specs* specs() { return specs_; } + + void write(bool value) { + if (specs_) + write(string_view(value ? "true" : "false"), *specs_); + else + out_ = detail::write<Char>(out_, value); + } + + void write(const Char* value) { + if (!value) { + FMT_THROW(format_error("string pointer is null")); + } else { + auto length = std::char_traits<char_type>::length(value); + basic_string_view<char_type> sv(value, length); + specs_ ? write(sv, *specs_) : write(sv); + } + } + + public: + arg_formatter_base(OutputIt out, format_specs* s, locale_ref loc) + : out_(out), locale_(loc), specs_(s) {} + + iterator operator()(monostate) { + FMT_ASSERT(false, "invalid argument type"); + return out_; + } + + template <typename T, FMT_ENABLE_IF(is_integral<T>::value)> + FMT_INLINE iterator operator()(T value) { + if (specs_) + write_int(value, *specs_); + else + out_ = detail::write<Char>(out_, value); + return out_; + } + + iterator operator()(Char value) { + handle_char_specs(specs_, + char_spec_handler(*this, static_cast<Char>(value))); + return out_; + } + + iterator operator()(bool value) { + if (specs_ && specs_->type) return (*this)(value ? 1 : 0); + write(value != 0); + return out_; + } + + template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)> + iterator operator()(T value) { + auto specs = specs_ ? *specs_ : format_specs(); + if (const_check(is_supported_floating_point(value))) + out_ = detail::write(out_, value, specs, locale_); + else + FMT_ASSERT(false, "unsupported float argument type"); + return out_; + } + + iterator operator()(const Char* value) { + if (!specs_) return write(value), out_; + handle_cstring_type_spec(specs_->type, cstring_spec_handler(*this, value)); + return out_; + } + + iterator operator()(basic_string_view<Char> value) { + if (specs_) { + check_string_type_spec(specs_->type, error_handler()); + write(value, *specs_); + } else { + write(value); + } + return out_; + } + + iterator operator()(const void* value) { + if (specs_) check_pointer_type_spec(specs_->type, error_handler()); + write_pointer(value); + return out_; + } +}; + +/** The default argument formatter. */ +template <typename OutputIt, typename Char> +class arg_formatter : public arg_formatter_base<OutputIt, Char> { + private: + using char_type = Char; + using base = arg_formatter_base<OutputIt, Char>; + using context_type = basic_format_context<OutputIt, Char>; + + context_type& ctx_; + basic_format_parse_context<char_type>* parse_ctx_; + const Char* ptr_; + + public: + using iterator = typename base::iterator; + using format_specs = typename base::format_specs; + + /** + \rst + Constructs an argument formatter object. + *ctx* is a reference to the formatting context, + *specs* contains format specifier information for standard argument types. + \endrst + */ + explicit arg_formatter( + context_type& ctx, + basic_format_parse_context<char_type>* parse_ctx = nullptr, + format_specs* specs = nullptr, const Char* ptr = nullptr) + : base(ctx.out(), specs, ctx.locale()), + ctx_(ctx), + parse_ctx_(parse_ctx), + ptr_(ptr) {} + + using base::operator(); + + /** Formats an argument of a user-defined type. */ + iterator operator()(typename basic_format_arg<context_type>::handle handle) { + if (ptr_) advance_to(*parse_ctx_, ptr_); + handle.format(*parse_ctx_, ctx_); + return ctx_.out(); + } +}; + +template <typename Char> FMT_CONSTEXPR bool is_name_start(Char c) { + return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || '_' == c; +} + +// Parses the range [begin, end) as an unsigned integer. This function assumes +// that the range is non-empty and the first character is a digit. +template <typename Char, typename ErrorHandler> +FMT_CONSTEXPR int parse_nonnegative_int(const Char*& begin, const Char* end, + ErrorHandler&& eh) { + FMT_ASSERT(begin != end && '0' <= *begin && *begin <= '9', ""); + unsigned value = 0; + // Convert to unsigned to prevent a warning. + constexpr unsigned max_int = max_value<int>(); + unsigned big = max_int / 10; + do { + // Check for overflow. + if (value > big) { + value = max_int + 1; + break; + } + value = value * 10 + unsigned(*begin - '0'); + ++begin; + } while (begin != end && '0' <= *begin && *begin <= '9'); + if (value > max_int) eh.on_error("number is too big"); + return static_cast<int>(value); +} + +template <typename Context> class custom_formatter { + private: + using char_type = typename Context::char_type; + + basic_format_parse_context<char_type>& parse_ctx_; + Context& ctx_; + + public: + explicit custom_formatter(basic_format_parse_context<char_type>& parse_ctx, + Context& ctx) + : parse_ctx_(parse_ctx), ctx_(ctx) {} + + void operator()(typename basic_format_arg<Context>::handle h) const { + h.format(parse_ctx_, ctx_); + } + + template <typename T> void operator()(T) const {} +}; + +template <typename T> +using is_integer = + bool_constant<is_integral<T>::value && !std::is_same<T, bool>::value && + !std::is_same<T, char>::value && + !std::is_same<T, wchar_t>::value>; + +template <typename ErrorHandler> class width_checker { + public: + explicit FMT_CONSTEXPR width_checker(ErrorHandler& eh) : handler_(eh) {} + + template <typename T, FMT_ENABLE_IF(is_integer<T>::value)> + FMT_CONSTEXPR unsigned long long operator()(T value) { + if (is_negative(value)) handler_.on_error("negative width"); + return static_cast<unsigned long long>(value); + } + + template <typename T, FMT_ENABLE_IF(!is_integer<T>::value)> + FMT_CONSTEXPR unsigned long long operator()(T) { + handler_.on_error("width is not integer"); + return 0; + } + + private: + ErrorHandler& handler_; +}; + +template <typename ErrorHandler> class precision_checker { + public: + explicit FMT_CONSTEXPR precision_checker(ErrorHandler& eh) : handler_(eh) {} + + template <typename T, FMT_ENABLE_IF(is_integer<T>::value)> + FMT_CONSTEXPR unsigned long long operator()(T value) { + if (is_negative(value)) handler_.on_error("negative precision"); + return static_cast<unsigned long long>(value); + } + + template <typename T, FMT_ENABLE_IF(!is_integer<T>::value)> + FMT_CONSTEXPR unsigned long long operator()(T) { + handler_.on_error("precision is not integer"); + return 0; + } + + private: + ErrorHandler& handler_; +}; + +// A format specifier handler that sets fields in basic_format_specs. +template <typename Char> class specs_setter { + public: + explicit FMT_CONSTEXPR specs_setter(basic_format_specs<Char>& specs) + : specs_(specs) {} + + FMT_CONSTEXPR specs_setter(const specs_setter& other) + : specs_(other.specs_) {} + + FMT_CONSTEXPR void on_align(align_t align) { specs_.align = align; } + FMT_CONSTEXPR void on_fill(basic_string_view<Char> fill) { + specs_.fill = fill; + } + FMT_CONSTEXPR void on_plus() { specs_.sign = sign::plus; } + FMT_CONSTEXPR void on_minus() { specs_.sign = sign::minus; } + FMT_CONSTEXPR void on_space() { specs_.sign = sign::space; } + FMT_CONSTEXPR void on_hash() { specs_.alt = true; } + + FMT_CONSTEXPR void on_zero() { + specs_.align = align::numeric; + specs_.fill[0] = Char('0'); + } + + FMT_CONSTEXPR void on_width(int width) { specs_.width = width; } + FMT_CONSTEXPR void on_precision(int precision) { + specs_.precision = precision; + } + FMT_CONSTEXPR void end_precision() {} + + FMT_CONSTEXPR void on_type(Char type) { + specs_.type = static_cast<char>(type); + } + + protected: + basic_format_specs<Char>& specs_; +}; + +template <typename ErrorHandler> class numeric_specs_checker { + public: + FMT_CONSTEXPR numeric_specs_checker(ErrorHandler& eh, detail::type arg_type) + : error_handler_(eh), arg_type_(arg_type) {} + + FMT_CONSTEXPR void require_numeric_argument() { + if (!is_arithmetic_type(arg_type_)) + error_handler_.on_error("format specifier requires numeric argument"); + } + + FMT_CONSTEXPR void check_sign() { + require_numeric_argument(); + if (is_integral_type(arg_type_) && arg_type_ != type::int_type && + arg_type_ != type::long_long_type && arg_type_ != type::char_type) { + error_handler_.on_error("format specifier requires signed argument"); + } + } + + FMT_CONSTEXPR void check_precision() { + if (is_integral_type(arg_type_) || arg_type_ == type::pointer_type) + error_handler_.on_error("precision not allowed for this argument type"); + } + + private: + ErrorHandler& error_handler_; + detail::type arg_type_; +}; + +// A format specifier handler that checks if specifiers are consistent with the +// argument type. +template <typename Handler> class specs_checker : public Handler { + private: + numeric_specs_checker<Handler> checker_; + + // Suppress an MSVC warning about using this in initializer list. + FMT_CONSTEXPR Handler& error_handler() { return *this; } + + public: + FMT_CONSTEXPR specs_checker(const Handler& handler, detail::type arg_type) + : Handler(handler), checker_(error_handler(), arg_type) {} + + FMT_CONSTEXPR specs_checker(const specs_checker& other) + : Handler(other), checker_(error_handler(), other.arg_type_) {} + + FMT_CONSTEXPR void on_align(align_t align) { + if (align == align::numeric) checker_.require_numeric_argument(); + Handler::on_align(align); + } + + FMT_CONSTEXPR void on_plus() { + checker_.check_sign(); + Handler::on_plus(); + } + + FMT_CONSTEXPR void on_minus() { + checker_.check_sign(); + Handler::on_minus(); + } + + FMT_CONSTEXPR void on_space() { + checker_.check_sign(); + Handler::on_space(); + } + + FMT_CONSTEXPR void on_hash() { + checker_.require_numeric_argument(); + Handler::on_hash(); + } + + FMT_CONSTEXPR void on_zero() { + checker_.require_numeric_argument(); + Handler::on_zero(); + } + + FMT_CONSTEXPR void end_precision() { checker_.check_precision(); } +}; + +template <template <typename> class Handler, typename FormatArg, + typename ErrorHandler> +FMT_CONSTEXPR int get_dynamic_spec(FormatArg arg, ErrorHandler eh) { + unsigned long long value = visit_format_arg(Handler<ErrorHandler>(eh), arg); + if (value > to_unsigned(max_value<int>())) eh.on_error("number is too big"); + return static_cast<int>(value); +} + +struct auto_id {}; + +template <typename Context, typename ID> +FMT_CONSTEXPR typename Context::format_arg get_arg(Context& ctx, ID id) { + auto arg = ctx.arg(id); + if (!arg) ctx.on_error("argument not found"); + return arg; +} + +// The standard format specifier handler with checking. +template <typename ParseContext, typename Context> +class specs_handler : public specs_setter<typename Context::char_type> { + public: + using char_type = typename Context::char_type; + + FMT_CONSTEXPR specs_handler(basic_format_specs<char_type>& specs, + ParseContext& parse_ctx, Context& ctx) + : specs_setter<char_type>(specs), + parse_context_(parse_ctx), + context_(ctx) {} + + template <typename Id> FMT_CONSTEXPR void on_dynamic_width(Id arg_id) { + this->specs_.width = get_dynamic_spec<width_checker>( + get_arg(arg_id), context_.error_handler()); + } + + template <typename Id> FMT_CONSTEXPR void on_dynamic_precision(Id arg_id) { + this->specs_.precision = get_dynamic_spec<precision_checker>( + get_arg(arg_id), context_.error_handler()); + } + + void on_error(const char* message) { context_.on_error(message); } + + private: + // This is only needed for compatibility with gcc 4.4. + using format_arg = typename Context::format_arg; + + FMT_CONSTEXPR format_arg get_arg(auto_id) { + return detail::get_arg(context_, parse_context_.next_arg_id()); + } + + FMT_CONSTEXPR format_arg get_arg(int arg_id) { + parse_context_.check_arg_id(arg_id); + return detail::get_arg(context_, arg_id); + } + + FMT_CONSTEXPR format_arg get_arg(basic_string_view<char_type> arg_id) { + parse_context_.check_arg_id(arg_id); + return detail::get_arg(context_, arg_id); + } + + ParseContext& parse_context_; + Context& context_; +}; + +enum class arg_id_kind { none, index, name }; + +// An argument reference. +template <typename Char> struct arg_ref { + FMT_CONSTEXPR arg_ref() : kind(arg_id_kind::none), val() {} + + FMT_CONSTEXPR explicit arg_ref(int index) + : kind(arg_id_kind::index), val(index) {} + FMT_CONSTEXPR explicit arg_ref(basic_string_view<Char> name) + : kind(arg_id_kind::name), val(name) {} + + FMT_CONSTEXPR arg_ref& operator=(int idx) { + kind = arg_id_kind::index; + val.index = idx; + return *this; + } + + arg_id_kind kind; + union value { + FMT_CONSTEXPR value(int id = 0) : index{id} {} + FMT_CONSTEXPR value(basic_string_view<Char> n) : name(n) {} + + int index; + basic_string_view<Char> name; + } val; +}; + +// Format specifiers with width and precision resolved at formatting rather +// than parsing time to allow re-using the same parsed specifiers with +// different sets of arguments (precompilation of format strings). +template <typename Char> +struct dynamic_format_specs : basic_format_specs<Char> { + arg_ref<Char> width_ref; + arg_ref<Char> precision_ref; +}; + +// Format spec handler that saves references to arguments representing dynamic +// width and precision to be resolved at formatting time. +template <typename ParseContext> +class dynamic_specs_handler + : public specs_setter<typename ParseContext::char_type> { + public: + using char_type = typename ParseContext::char_type; + + FMT_CONSTEXPR dynamic_specs_handler(dynamic_format_specs<char_type>& specs, + ParseContext& ctx) + : specs_setter<char_type>(specs), specs_(specs), context_(ctx) {} + + FMT_CONSTEXPR dynamic_specs_handler(const dynamic_specs_handler& other) + : specs_setter<char_type>(other), + specs_(other.specs_), + context_(other.context_) {} + + template <typename Id> FMT_CONSTEXPR void on_dynamic_width(Id arg_id) { + specs_.width_ref = make_arg_ref(arg_id); + } + + template <typename Id> FMT_CONSTEXPR void on_dynamic_precision(Id arg_id) { + specs_.precision_ref = make_arg_ref(arg_id); + } + + FMT_CONSTEXPR void on_error(const char* message) { + context_.on_error(message); + } + + private: + using arg_ref_type = arg_ref<char_type>; + + FMT_CONSTEXPR arg_ref_type make_arg_ref(int arg_id) { + context_.check_arg_id(arg_id); + return arg_ref_type(arg_id); + } + + FMT_CONSTEXPR arg_ref_type make_arg_ref(auto_id) { + return arg_ref_type(context_.next_arg_id()); + } + + FMT_CONSTEXPR arg_ref_type make_arg_ref(basic_string_view<char_type> arg_id) { + context_.check_arg_id(arg_id); + basic_string_view<char_type> format_str( + context_.begin(), to_unsigned(context_.end() - context_.begin())); + return arg_ref_type(arg_id); + } + + dynamic_format_specs<char_type>& specs_; + ParseContext& context_; +}; + +template <typename Char, typename IDHandler> +FMT_CONSTEXPR const Char* parse_arg_id(const Char* begin, const Char* end, + IDHandler&& handler) { + FMT_ASSERT(begin != end, ""); + Char c = *begin; + if (c == '}' || c == ':') { + handler(); + return begin; + } + if (c >= '0' && c <= '9') { + int index = 0; + if (c != '0') + index = parse_nonnegative_int(begin, end, handler); + else + ++begin; + if (begin == end || (*begin != '}' && *begin != ':')) + handler.on_error("invalid format string"); + else + handler(index); + return begin; + } + if (!is_name_start(c)) { + handler.on_error("invalid format string"); + return begin; + } + auto it = begin; + do { + ++it; + } while (it != end && (is_name_start(c = *it) || ('0' <= c && c <= '9'))); + handler(basic_string_view<Char>(begin, to_unsigned(it - begin))); + return it; +} + +// Adapts SpecHandler to IDHandler API for dynamic width. +template <typename SpecHandler, typename Char> struct width_adapter { + explicit FMT_CONSTEXPR width_adapter(SpecHandler& h) : handler(h) {} + + FMT_CONSTEXPR void operator()() { handler.on_dynamic_width(auto_id()); } + FMT_CONSTEXPR void operator()(int id) { handler.on_dynamic_width(id); } + FMT_CONSTEXPR void operator()(basic_string_view<Char> id) { + handler.on_dynamic_width(id); + } + + FMT_CONSTEXPR void on_error(const char* message) { + handler.on_error(message); + } + + SpecHandler& handler; +}; + +// Adapts SpecHandler to IDHandler API for dynamic precision. +template <typename SpecHandler, typename Char> struct precision_adapter { + explicit FMT_CONSTEXPR precision_adapter(SpecHandler& h) : handler(h) {} + + FMT_CONSTEXPR void operator()() { handler.on_dynamic_precision(auto_id()); } + FMT_CONSTEXPR void operator()(int id) { handler.on_dynamic_precision(id); } + FMT_CONSTEXPR void operator()(basic_string_view<Char> id) { + handler.on_dynamic_precision(id); + } + + FMT_CONSTEXPR void on_error(const char* message) { + handler.on_error(message); + } + + SpecHandler& handler; +}; + +template <typename Char> +FMT_CONSTEXPR int code_point_length(const Char* begin) { + if (const_check(sizeof(Char) != 1)) return 1; + constexpr char lengths[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 3, 3, 4, 0}; + int len = lengths[static_cast<unsigned char>(*begin) >> 3]; + + // Compute the pointer to the next character early so that the next + // iteration can start working on the next character. Neither Clang + // nor GCC figure out this reordering on their own. + return len + !len; +} + +template <typename Char> constexpr bool is_ascii_letter(Char c) { + return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'); +} + +// Converts a character to ASCII. Returns a number > 127 on conversion failure. +template <typename Char, FMT_ENABLE_IF(std::is_integral<Char>::value)> +constexpr Char to_ascii(Char value) { + return value; +} +template <typename Char, FMT_ENABLE_IF(std::is_enum<Char>::value)> +constexpr typename std::underlying_type<Char>::type to_ascii(Char value) { + return value; +} + +// Parses fill and alignment. +template <typename Char, typename Handler> +FMT_CONSTEXPR const Char* parse_align(const Char* begin, const Char* end, + Handler&& handler) { + FMT_ASSERT(begin != end, ""); + auto align = align::none; + auto p = begin + code_point_length(begin); + if (p >= end) p = begin; + for (;;) { + switch (to_ascii(*p)) { + case '<': + align = align::left; + break; + case '>': + align = align::right; + break; +#if FMT_DEPRECATED_NUMERIC_ALIGN + case '=': + align = align::numeric; + break; +#endif + case '^': + align = align::center; + break; + } + if (align != align::none) { + if (p != begin) { + auto c = *begin; + if (c == '{') + return handler.on_error("invalid fill character '{'"), begin; + handler.on_fill(basic_string_view<Char>(begin, to_unsigned(p - begin))); + begin = p + 1; + } else + ++begin; + handler.on_align(align); + break; + } else if (p == begin) { + break; + } + p = begin; + } + return begin; +} + +template <typename Char, typename Handler> +FMT_CONSTEXPR const Char* parse_width(const Char* begin, const Char* end, + Handler&& handler) { + FMT_ASSERT(begin != end, ""); + if ('0' <= *begin && *begin <= '9') { + handler.on_width(parse_nonnegative_int(begin, end, handler)); + } else if (*begin == '{') { + ++begin; + if (begin != end) + begin = parse_arg_id(begin, end, width_adapter<Handler, Char>(handler)); + if (begin == end || *begin != '}') + return handler.on_error("invalid format string"), begin; + ++begin; + } + return begin; +} + +template <typename Char, typename Handler> +FMT_CONSTEXPR const Char* parse_precision(const Char* begin, const Char* end, + Handler&& handler) { + ++begin; + auto c = begin != end ? *begin : Char(); + if ('0' <= c && c <= '9') { + handler.on_precision(parse_nonnegative_int(begin, end, handler)); + } else if (c == '{') { + ++begin; + if (begin != end) { + begin = + parse_arg_id(begin, end, precision_adapter<Handler, Char>(handler)); + } + if (begin == end || *begin++ != '}') + return handler.on_error("invalid format string"), begin; + } else { + return handler.on_error("missing precision specifier"), begin; + } + handler.end_precision(); + return begin; +} + +// Parses standard format specifiers and sends notifications about parsed +// components to handler. +template <typename Char, typename SpecHandler> +FMT_CONSTEXPR const Char* parse_format_specs(const Char* begin, const Char* end, + SpecHandler&& handler) { + if (begin == end) return begin; + + begin = parse_align(begin, end, handler); + if (begin == end) return begin; + + // Parse sign. + switch (to_ascii(*begin)) { + case '+': + handler.on_plus(); + ++begin; + break; + case '-': + handler.on_minus(); + ++begin; + break; + case ' ': + handler.on_space(); + ++begin; + break; + } + if (begin == end) return begin; + + if (*begin == '#') { + handler.on_hash(); + if (++begin == end) return begin; + } + + // Parse zero flag. + if (*begin == '0') { + handler.on_zero(); + if (++begin == end) return begin; + } + + begin = parse_width(begin, end, handler); + if (begin == end) return begin; + + // Parse precision. + if (*begin == '.') { + begin = parse_precision(begin, end, handler); + } + + // Parse type. + if (begin != end && *begin != '}') handler.on_type(*begin++); + return begin; +} + +// Return the result via the out param to workaround gcc bug 77539. +template <bool IS_CONSTEXPR, typename T, typename Ptr = const T*> +FMT_CONSTEXPR bool find(Ptr first, Ptr last, T value, Ptr& out) { + for (out = first; out != last; ++out) { + if (*out == value) return true; + } + return false; +} + +template <> +inline bool find<false, char>(const char* first, const char* last, char value, + const char*& out) { + out = static_cast<const char*>( + std::memchr(first, value, detail::to_unsigned(last - first))); + return out != nullptr; +} + +template <typename Handler, typename Char> struct id_adapter { + Handler& handler; + int arg_id; + + FMT_CONSTEXPR void operator()() { arg_id = handler.on_arg_id(); } + FMT_CONSTEXPR void operator()(int id) { arg_id = handler.on_arg_id(id); } + FMT_CONSTEXPR void operator()(basic_string_view<Char> id) { + arg_id = handler.on_arg_id(id); + } + FMT_CONSTEXPR void on_error(const char* message) { + handler.on_error(message); + } +}; + +template <typename Char, typename Handler> +FMT_CONSTEXPR const Char* parse_replacement_field(const Char* begin, + const Char* end, + Handler&& handler) { + ++begin; + if (begin == end) return handler.on_error("invalid format string"), end; + if (*begin == '}') { + handler.on_replacement_field(handler.on_arg_id(), begin); + } else if (*begin == '{') { + handler.on_text(begin, begin + 1); + } else { + auto adapter = id_adapter<Handler, Char>{handler, 0}; + begin = parse_arg_id(begin, end, adapter); + Char c = begin != end ? *begin : Char(); + if (c == '}') { + handler.on_replacement_field(adapter.arg_id, begin); + } else if (c == ':') { + begin = handler.on_format_specs(adapter.arg_id, begin + 1, end); + if (begin == end || *begin != '}') + return handler.on_error("unknown format specifier"), end; + } else { + return handler.on_error("missing '}' in format string"), end; + } + } + return begin + 1; +} + +template <bool IS_CONSTEXPR, typename Char, typename Handler> +FMT_CONSTEXPR_DECL FMT_INLINE void parse_format_string( + basic_string_view<Char> format_str, Handler&& handler) { + auto begin = format_str.data(); + auto end = begin + format_str.size(); + if (end - begin < 32) { + // Use a simple loop instead of memchr for small strings. + const Char* p = begin; + while (p != end) { + auto c = *p++; + if (c == '{') { + handler.on_text(begin, p - 1); + begin = p = parse_replacement_field(p - 1, end, handler); + } else if (c == '}') { + if (p == end || *p != '}') + return handler.on_error("unmatched '}' in format string"); + handler.on_text(begin, p); + begin = ++p; + } + } + handler.on_text(begin, end); + return; + } + struct writer { + FMT_CONSTEXPR void operator()(const Char* pbegin, const Char* pend) { + if (pbegin == pend) return; + for (;;) { + const Char* p = nullptr; + if (!find<IS_CONSTEXPR>(pbegin, pend, '}', p)) + return handler_.on_text(pbegin, pend); + ++p; + if (p == pend || *p != '}') + return handler_.on_error("unmatched '}' in format string"); + handler_.on_text(pbegin, p); + pbegin = p + 1; + } + } + Handler& handler_; + } write{handler}; + while (begin != end) { + // Doing two passes with memchr (one for '{' and another for '}') is up to + // 2.5x faster than the naive one-pass implementation on big format strings. + const Char* p = begin; + if (*begin != '{' && !find<IS_CONSTEXPR>(begin + 1, end, '{', p)) + return write(begin, end); + write(begin, p); + begin = parse_replacement_field(p, end, handler); + } +} + +template <typename T, typename ParseContext> +FMT_CONSTEXPR const typename ParseContext::char_type* parse_format_specs( + ParseContext& ctx) { + using char_type = typename ParseContext::char_type; + using context = buffer_context<char_type>; + using mapped_type = + conditional_t<detail::mapped_type_constant<T, context>::value != + type::custom_type, + decltype(arg_mapper<context>().map(std::declval<T>())), T>; + auto f = conditional_t<has_formatter<mapped_type, context>::value, + formatter<mapped_type, char_type>, + detail::fallback_formatter<T, char_type>>(); + return f.parse(ctx); +} + +template <typename OutputIt, typename Char, typename Context> +struct format_handler : detail::error_handler { + basic_format_parse_context<Char> parse_context; + Context context; + + format_handler(OutputIt out, basic_string_view<Char> str, + basic_format_args<Context> format_args, detail::locale_ref loc) + : parse_context(str), context(out, format_args, loc) {} + + void on_text(const Char* begin, const Char* end) { + auto size = to_unsigned(end - begin); + auto out = context.out(); + auto&& it = reserve(out, size); + it = std::copy_n(begin, size, it); + context.advance_to(out); + } + + int on_arg_id() { return parse_context.next_arg_id(); } + int on_arg_id(int id) { return parse_context.check_arg_id(id), id; } + int on_arg_id(basic_string_view<Char> id) { + int arg_id = context.arg_id(id); + if (arg_id < 0) on_error("argument not found"); + return arg_id; + } + + FMT_INLINE void on_replacement_field(int id, const Char*) { + auto arg = get_arg(context, id); + context.advance_to(visit_format_arg( + default_arg_formatter<OutputIt, Char>{context.out(), context.args(), + context.locale()}, + arg)); + } + + const Char* on_format_specs(int id, const Char* begin, const Char* end) { + auto arg = get_arg(context, id); + if (arg.type() == type::custom_type) { + advance_to(parse_context, begin); + visit_format_arg(custom_formatter<Context>(parse_context, context), arg); + return parse_context.begin(); + } + auto specs = basic_format_specs<Char>(); + if (begin + 1 < end && begin[1] == '}' && is_ascii_letter(*begin)) { + specs.type = static_cast<char>(*begin++); + } else { + using parse_context_t = basic_format_parse_context<Char>; + specs_checker<specs_handler<parse_context_t, Context>> handler( + specs_handler<parse_context_t, Context>(specs, parse_context, + context), + arg.type()); + begin = parse_format_specs(begin, end, handler); + if (begin == end || *begin != '}') + on_error("missing '}' in format string"); + } + context.advance_to(visit_format_arg( + arg_formatter<OutputIt, Char>(context, &parse_context, &specs), arg)); + return begin; + } +}; + +// A parse context with extra argument id checks. It is only used at compile +// time because adding checks at runtime would introduce substantial overhead +// and would be redundant since argument ids are checked when arguments are +// retrieved anyway. +template <typename Char, typename ErrorHandler = error_handler> +class compile_parse_context + : public basic_format_parse_context<Char, ErrorHandler> { + private: + int num_args_; + using base = basic_format_parse_context<Char, ErrorHandler>; + + public: + explicit FMT_CONSTEXPR compile_parse_context( + basic_string_view<Char> format_str, int num_args = max_value<int>(), + ErrorHandler eh = {}) + : base(format_str, eh), num_args_(num_args) {} + + FMT_CONSTEXPR int next_arg_id() { + int id = base::next_arg_id(); + if (id >= num_args_) this->on_error("argument not found"); + return id; + } + + FMT_CONSTEXPR void check_arg_id(int id) { + base::check_arg_id(id); + if (id >= num_args_) this->on_error("argument not found"); + } + using base::check_arg_id; +}; + +template <typename Char, typename ErrorHandler, typename... Args> +class format_string_checker { + public: + explicit FMT_CONSTEXPR format_string_checker( + basic_string_view<Char> format_str, ErrorHandler eh) + : context_(format_str, num_args, eh), + parse_funcs_{&parse_format_specs<Args, parse_context_type>...} {} + + FMT_CONSTEXPR void on_text(const Char*, const Char*) {} + + FMT_CONSTEXPR int on_arg_id() { return context_.next_arg_id(); } + FMT_CONSTEXPR int on_arg_id(int id) { return context_.check_arg_id(id), id; } + FMT_CONSTEXPR int on_arg_id(basic_string_view<Char>) { + on_error("compile-time checks don't support named arguments"); + return 0; + } + + FMT_CONSTEXPR void on_replacement_field(int, const Char*) {} + + FMT_CONSTEXPR const Char* on_format_specs(int id, const Char* begin, + const Char*) { + advance_to(context_, begin); + return id < num_args ? parse_funcs_[id](context_) : begin; + } + + FMT_CONSTEXPR void on_error(const char* message) { + context_.on_error(message); + } + + private: + using parse_context_type = compile_parse_context<Char, ErrorHandler>; + enum { num_args = sizeof...(Args) }; + + // Format specifier parsing function. + using parse_func = const Char* (*)(parse_context_type&); + + parse_context_type context_; + parse_func parse_funcs_[num_args > 0 ? num_args : 1]; +}; + +// Converts string literals to basic_string_view. +template <typename Char, size_t N> +FMT_CONSTEXPR basic_string_view<Char> compile_string_to_view( + const Char (&s)[N]) { + // Remove trailing null character if needed. Won't be present if this is used + // with raw character array (i.e. not defined as a string). + return {s, + N - ((std::char_traits<Char>::to_int_type(s[N - 1]) == 0) ? 1 : 0)}; +} + +// Converts string_view to basic_string_view. +template <typename Char> +FMT_CONSTEXPR basic_string_view<Char> compile_string_to_view( + const std_string_view<Char>& s) { + return {s.data(), s.size()}; +} + +#define FMT_STRING_IMPL(s, base) \ + [] { \ + /* Use a macro-like name to avoid shadowing warnings. */ \ + struct FMT_COMPILE_STRING : base { \ + using char_type = fmt::remove_cvref_t<decltype(s[0])>; \ + FMT_MAYBE_UNUSED FMT_CONSTEXPR \ + operator fmt::basic_string_view<char_type>() const { \ + return fmt::detail::compile_string_to_view<char_type>(s); \ + } \ + }; \ + return FMT_COMPILE_STRING(); \ + }() + +/** + \rst + Constructs a compile-time format string from a string literal *s*. + + **Example**:: + + // A compile-time error because 'd' is an invalid specifier for strings. + std::string s = fmt::format(FMT_STRING("{:d}"), "foo"); + \endrst + */ +#define FMT_STRING(s) FMT_STRING_IMPL(s, fmt::compile_string) + +template <typename... Args, typename S, + enable_if_t<(is_compile_string<S>::value), int>> +void check_format_string(S format_str) { + FMT_CONSTEXPR_DECL auto s = to_string_view(format_str); + using checker = format_string_checker<typename S::char_type, error_handler, + remove_cvref_t<Args>...>; + FMT_CONSTEXPR_DECL bool invalid_format = + (parse_format_string<true>(s, checker(s, {})), true); + (void)invalid_format; +} + +template <template <typename> class Handler, typename Context> +void handle_dynamic_spec(int& value, arg_ref<typename Context::char_type> ref, + Context& ctx) { + switch (ref.kind) { + case arg_id_kind::none: + break; + case arg_id_kind::index: + value = detail::get_dynamic_spec<Handler>(ctx.arg(ref.val.index), + ctx.error_handler()); + break; + case arg_id_kind::name: + value = detail::get_dynamic_spec<Handler>(ctx.arg(ref.val.name), + ctx.error_handler()); + break; + } +} + +using format_func = void (*)(detail::buffer<char>&, int, string_view); + +FMT_API void format_error_code(buffer<char>& out, int error_code, + string_view message) FMT_NOEXCEPT; + +FMT_API void report_error(format_func func, int error_code, + string_view message) FMT_NOEXCEPT; +} // namespace detail + +template <typename OutputIt, typename Char> +using arg_formatter FMT_DEPRECATED_ALIAS = + detail::arg_formatter<OutputIt, Char>; + +/** + An error returned by an operating system or a language runtime, + for example a file opening error. +*/ +FMT_CLASS_API +class FMT_API system_error : public std::runtime_error { + private: + void init(int err_code, string_view format_str, format_args args); + + protected: + int error_code_; + + system_error() : std::runtime_error(""), error_code_(0) {} + + public: + /** + \rst + Constructs a :class:`fmt::system_error` object with a description + formatted with `fmt::format_system_error`. *message* and additional + arguments passed into the constructor are formatted similarly to + `fmt::format`. + + **Example**:: + + // This throws a system_error with the description + // cannot open file 'madeup': No such file or directory + // or similar (system message may vary). + const char *filename = "madeup"; + std::FILE *file = std::fopen(filename, "r"); + if (!file) + throw fmt::system_error(errno, "cannot open file '{}'", filename); + \endrst + */ + template <typename... Args> + system_error(int error_code, string_view message, const Args&... args) + : std::runtime_error("") { + init(error_code, message, make_format_args(args...)); + } + system_error(const system_error&) = default; + system_error& operator=(const system_error&) = default; + system_error(system_error&&) = default; + system_error& operator=(system_error&&) = default; + ~system_error() FMT_NOEXCEPT FMT_OVERRIDE; + + int error_code() const { return error_code_; } +}; + +/** + \rst + Formats an error returned by an operating system or a language runtime, + for example a file opening error, and writes it to *out* in the following + form: + + .. parsed-literal:: + *<message>*: *<system-message>* + + where *<message>* is the passed message and *<system-message>* is + the system message corresponding to the error code. + *error_code* is a system error code as given by ``errno``. + If *error_code* is not a valid error code such as -1, the system message + may look like "Unknown error -1" and is platform-dependent. + \endrst + */ +FMT_API void format_system_error(detail::buffer<char>& out, int error_code, + string_view message) FMT_NOEXCEPT; + +// Reports a system error without throwing an exception. +// Can be used to report errors from destructors. +FMT_API void report_system_error(int error_code, + string_view message) FMT_NOEXCEPT; + +/** Fast integer formatter. */ +class format_int { + private: + // Buffer should be large enough to hold all digits (digits10 + 1), + // a sign and a null character. + enum { buffer_size = std::numeric_limits<unsigned long long>::digits10 + 3 }; + mutable char buffer_[buffer_size]; + char* str_; + + template <typename UInt> char* format_unsigned(UInt value) { + auto n = static_cast<detail::uint32_or_64_or_128_t<UInt>>(value); + return detail::format_decimal(buffer_, n, buffer_size - 1).begin; + } + + template <typename Int> char* format_signed(Int value) { + auto abs_value = static_cast<detail::uint32_or_64_or_128_t<Int>>(value); + bool negative = value < 0; + if (negative) abs_value = 0 - abs_value; + auto begin = format_unsigned(abs_value); + if (negative) *--begin = '-'; + return begin; + } + + public: + explicit format_int(int value) : str_(format_signed(value)) {} + explicit format_int(long value) : str_(format_signed(value)) {} + explicit format_int(long long value) : str_(format_signed(value)) {} + explicit format_int(unsigned value) : str_(format_unsigned(value)) {} + explicit format_int(unsigned long value) : str_(format_unsigned(value)) {} + explicit format_int(unsigned long long value) + : str_(format_unsigned(value)) {} + + /** Returns the number of characters written to the output buffer. */ + size_t size() const { + return detail::to_unsigned(buffer_ - str_ + buffer_size - 1); + } + + /** + Returns a pointer to the output buffer content. No terminating null + character is appended. + */ + const char* data() const { return str_; } + + /** + Returns a pointer to the output buffer content with terminating null + character appended. + */ + const char* c_str() const { + buffer_[buffer_size - 1] = '\0'; + return str_; + } + + /** + \rst + Returns the content of the output buffer as an ``std::string``. + \endrst + */ + std::string str() const { return std::string(str_, size()); } +}; + +// A formatter specialization for the core types corresponding to detail::type +// constants. +template <typename T, typename Char> +struct formatter<T, Char, + enable_if_t<detail::type_constant<T, Char>::value != + detail::type::custom_type>> { + FMT_CONSTEXPR formatter() = default; + + // Parses format specifiers stopping either at the end of the range or at the + // terminating '}'. + template <typename ParseContext> + FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { + using handler_type = detail::dynamic_specs_handler<ParseContext>; + auto type = detail::type_constant<T, Char>::value; + detail::specs_checker<handler_type> handler(handler_type(specs_, ctx), + type); + auto it = parse_format_specs(ctx.begin(), ctx.end(), handler); + auto eh = ctx.error_handler(); + switch (type) { + case detail::type::none_type: + FMT_ASSERT(false, "invalid argument type"); + break; + case detail::type::int_type: + case detail::type::uint_type: + case detail::type::long_long_type: + case detail::type::ulong_long_type: + case detail::type::int128_type: + case detail::type::uint128_type: + case detail::type::bool_type: + handle_int_type_spec(specs_.type, + detail::int_type_checker<decltype(eh)>(eh)); + break; + case detail::type::char_type: + handle_char_specs( + &specs_, detail::char_specs_checker<decltype(eh)>(specs_.type, eh)); + break; + case detail::type::float_type: + if (detail::const_check(FMT_USE_FLOAT)) + detail::parse_float_type_spec(specs_, eh); + else + FMT_ASSERT(false, "float support disabled"); + break; + case detail::type::double_type: + if (detail::const_check(FMT_USE_DOUBLE)) + detail::parse_float_type_spec(specs_, eh); + else + FMT_ASSERT(false, "double support disabled"); + break; + case detail::type::long_double_type: + if (detail::const_check(FMT_USE_LONG_DOUBLE)) + detail::parse_float_type_spec(specs_, eh); + else + FMT_ASSERT(false, "long double support disabled"); + break; + case detail::type::cstring_type: + detail::handle_cstring_type_spec( + specs_.type, detail::cstring_type_checker<decltype(eh)>(eh)); + break; + case detail::type::string_type: + detail::check_string_type_spec(specs_.type, eh); + break; + case detail::type::pointer_type: + detail::check_pointer_type_spec(specs_.type, eh); + break; + case detail::type::custom_type: + // Custom format specifiers should be checked in parse functions of + // formatter specializations. + break; + } + return it; + } + + template <typename FormatContext> + auto format(const T& val, FormatContext& ctx) -> decltype(ctx.out()) { + detail::handle_dynamic_spec<detail::width_checker>(specs_.width, + specs_.width_ref, ctx); + detail::handle_dynamic_spec<detail::precision_checker>( + specs_.precision, specs_.precision_ref, ctx); + using af = detail::arg_formatter<typename FormatContext::iterator, + typename FormatContext::char_type>; + return visit_format_arg(af(ctx, nullptr, &specs_), + detail::make_arg<FormatContext>(val)); + } + + private: + detail::dynamic_format_specs<Char> specs_; +}; + +#define FMT_FORMAT_AS(Type, Base) \ + template <typename Char> \ + struct formatter<Type, Char> : formatter<Base, Char> { \ + template <typename FormatContext> \ + auto format(Type const& val, FormatContext& ctx) -> decltype(ctx.out()) { \ + return formatter<Base, Char>::format(val, ctx); \ + } \ + } + +FMT_FORMAT_AS(signed char, int); +FMT_FORMAT_AS(unsigned char, unsigned); +FMT_FORMAT_AS(short, int); +FMT_FORMAT_AS(unsigned short, unsigned); +FMT_FORMAT_AS(long, long long); +FMT_FORMAT_AS(unsigned long, unsigned long long); +FMT_FORMAT_AS(Char*, const Char*); +FMT_FORMAT_AS(std::basic_string<Char>, basic_string_view<Char>); +FMT_FORMAT_AS(std::nullptr_t, const void*); +FMT_FORMAT_AS(detail::std_string_view<Char>, basic_string_view<Char>); + +template <typename Char> +struct formatter<void*, Char> : formatter<const void*, Char> { + template <typename FormatContext> + auto format(void* val, FormatContext& ctx) -> decltype(ctx.out()) { + return formatter<const void*, Char>::format(val, ctx); + } +}; + +template <typename Char, size_t N> +struct formatter<Char[N], Char> : formatter<basic_string_view<Char>, Char> { + template <typename FormatContext> + auto format(const Char* val, FormatContext& ctx) -> decltype(ctx.out()) { + return formatter<basic_string_view<Char>, Char>::format(val, ctx); + } +}; + +// A formatter for types known only at run time such as variant alternatives. +// +// Usage: +// using variant = std::variant<int, std::string>; +// template <> +// struct formatter<variant>: dynamic_formatter<> { +// auto format(const variant& v, format_context& ctx) { +// return visit([&](const auto& val) { +// return dynamic_formatter<>::format(val, ctx); +// }, v); +// } +// }; +template <typename Char = char> class dynamic_formatter { + private: + struct null_handler : detail::error_handler { + void on_align(align_t) {} + void on_plus() {} + void on_minus() {} + void on_space() {} + void on_hash() {} + }; + + public: + template <typename ParseContext> + auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { + format_str_ = ctx.begin(); + // Checks are deferred to formatting time when the argument type is known. + detail::dynamic_specs_handler<ParseContext> handler(specs_, ctx); + return parse_format_specs(ctx.begin(), ctx.end(), handler); + } + + template <typename T, typename FormatContext> + auto format(const T& val, FormatContext& ctx) -> decltype(ctx.out()) { + handle_specs(ctx); + detail::specs_checker<null_handler> checker( + null_handler(), detail::mapped_type_constant<T, FormatContext>::value); + checker.on_align(specs_.align); + switch (specs_.sign) { + case sign::none: + break; + case sign::plus: + checker.on_plus(); + break; + case sign::minus: + checker.on_minus(); + break; + case sign::space: + checker.on_space(); + break; + } + if (specs_.alt) checker.on_hash(); + if (specs_.precision >= 0) checker.end_precision(); + using af = detail::arg_formatter<typename FormatContext::iterator, + typename FormatContext::char_type>; + visit_format_arg(af(ctx, nullptr, &specs_), + detail::make_arg<FormatContext>(val)); + return ctx.out(); + } + + private: + template <typename Context> void handle_specs(Context& ctx) { + detail::handle_dynamic_spec<detail::width_checker>(specs_.width, + specs_.width_ref, ctx); + detail::handle_dynamic_spec<detail::precision_checker>( + specs_.precision, specs_.precision_ref, ctx); + } + + detail::dynamic_format_specs<Char> specs_; + const Char* format_str_; +}; + +template <typename Char, typename ErrorHandler> +FMT_CONSTEXPR void advance_to( + basic_format_parse_context<Char, ErrorHandler>& ctx, const Char* p) { + ctx.advance_to(ctx.begin() + (p - &*ctx.begin())); +} + +/** + \rst + Converts ``p`` to ``const void*`` for pointer formatting. + + **Example**:: + + auto s = fmt::format("{}", fmt::ptr(p)); + \endrst + */ +template <typename T> inline const void* ptr(const T* p) { return p; } +template <typename T> inline const void* ptr(const std::unique_ptr<T>& p) { + return p.get(); +} +template <typename T> inline const void* ptr(const std::shared_ptr<T>& p) { + return p.get(); +} + +class bytes { + private: + string_view data_; + friend struct formatter<bytes>; + + public: + explicit bytes(string_view data) : data_(data) {} +}; + +template <> struct formatter<bytes> { + private: + detail::dynamic_format_specs<char> specs_; + + public: + template <typename ParseContext> + FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { + using handler_type = detail::dynamic_specs_handler<ParseContext>; + detail::specs_checker<handler_type> handler(handler_type(specs_, ctx), + detail::type::string_type); + auto it = parse_format_specs(ctx.begin(), ctx.end(), handler); + detail::check_string_type_spec(specs_.type, ctx.error_handler()); + return it; + } + + template <typename FormatContext> + auto format(bytes b, FormatContext& ctx) -> decltype(ctx.out()) { + detail::handle_dynamic_spec<detail::width_checker>(specs_.width, + specs_.width_ref, ctx); + detail::handle_dynamic_spec<detail::precision_checker>( + specs_.precision, specs_.precision_ref, ctx); + return detail::write_bytes(ctx.out(), b.data_, specs_); + } +}; + +template <typename It, typename Sentinel, typename Char> +struct arg_join : detail::view { + It begin; + Sentinel end; + basic_string_view<Char> sep; + + arg_join(It b, Sentinel e, basic_string_view<Char> s) + : begin(b), end(e), sep(s) {} +}; + +template <typename It, typename Sentinel, typename Char> +struct formatter<arg_join<It, Sentinel, Char>, Char> + : formatter<typename std::iterator_traits<It>::value_type, Char> { + template <typename FormatContext> + auto format(const arg_join<It, Sentinel, Char>& value, FormatContext& ctx) + -> decltype(ctx.out()) { + using base = formatter<typename std::iterator_traits<It>::value_type, Char>; + auto it = value.begin; + auto out = ctx.out(); + if (it != value.end) { + out = base::format(*it++, ctx); + while (it != value.end) { + out = std::copy(value.sep.begin(), value.sep.end(), out); + ctx.advance_to(out); + out = base::format(*it++, ctx); + } + } + return out; + } +}; + +/** + Returns an object that formats the iterator range `[begin, end)` with elements + separated by `sep`. + */ +template <typename It, typename Sentinel> +arg_join<It, Sentinel, char> join(It begin, Sentinel end, string_view sep) { + return {begin, end, sep}; +} + +template <typename It, typename Sentinel> +arg_join<It, Sentinel, wchar_t> join(It begin, Sentinel end, wstring_view sep) { + return {begin, end, sep}; +} + +/** + \rst + Returns an object that formats `range` with elements separated by `sep`. + + **Example**:: + + std::vector<int> v = {1, 2, 3}; + fmt::print("{}", fmt::join(v, ", ")); + // Output: "1, 2, 3" + + ``fmt::join`` applies passed format specifiers to the range elements:: + + fmt::print("{:02}", fmt::join(v, ", ")); + // Output: "01, 02, 03" + \endrst + */ +template <typename Range> +arg_join<detail::iterator_t<Range>, detail::sentinel_t<Range>, char> join( + Range&& range, string_view sep) { + return join(std::begin(range), std::end(range), sep); +} + +template <typename Range> +arg_join<detail::iterator_t<Range>, detail::sentinel_t<Range>, wchar_t> join( + Range&& range, wstring_view sep) { + return join(std::begin(range), std::end(range), sep); +} + +/** + \rst + Converts *value* to ``std::string`` using the default format for type *T*. + + **Example**:: + + #include <fmt/format.h> + + std::string answer = fmt::to_string(42); + \endrst + */ +template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)> +inline std::string to_string(const T& value) { + std::string result; + detail::write<char>(std::back_inserter(result), value); + return result; +} + +template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)> +inline std::string to_string(T value) { + // The buffer should be large enough to store the number including the sign or + // "false" for bool. + constexpr int max_size = detail::digits10<T>() + 2; + char buffer[max_size > 5 ? static_cast<unsigned>(max_size) : 5]; + char* begin = buffer; + return std::string(begin, detail::write<char>(begin, value)); +} + +/** + Converts *value* to ``std::wstring`` using the default format for type *T*. + */ +template <typename T> inline std::wstring to_wstring(const T& value) { + return format(L"{}", value); +} + +template <typename Char, size_t SIZE> +std::basic_string<Char> to_string(const basic_memory_buffer<Char, SIZE>& buf) { + auto size = buf.size(); + detail::assume(size < std::basic_string<Char>().max_size()); + return std::basic_string<Char>(buf.data(), size); +} + +template <typename Char> +void detail::vformat_to( + detail::buffer<Char>& buf, basic_string_view<Char> format_str, + basic_format_args<buffer_context<type_identity_t<Char>>> args, + detail::locale_ref loc) { + using iterator = typename buffer_context<Char>::iterator; + auto out = buffer_appender<Char>(buf); + if (format_str.size() == 2 && equal2(format_str.data(), "{}")) { + auto arg = args.get(0); + if (!arg) error_handler().on_error("argument not found"); + visit_format_arg(default_arg_formatter<iterator, Char>{out, args, loc}, + arg); + return; + } + format_handler<iterator, Char, buffer_context<Char>> h(out, format_str, args, + loc); + parse_format_string<false>(format_str, h); +} + +#ifndef FMT_HEADER_ONLY +extern template void detail::vformat_to(detail::buffer<char>&, string_view, + basic_format_args<format_context>, + detail::locale_ref); +namespace detail { + +extern template FMT_API std::string grouping_impl<char>(locale_ref loc); +extern template FMT_API std::string grouping_impl<wchar_t>(locale_ref loc); +extern template FMT_API char thousands_sep_impl<char>(locale_ref loc); +extern template FMT_API wchar_t thousands_sep_impl<wchar_t>(locale_ref loc); +extern template FMT_API char decimal_point_impl(locale_ref loc); +extern template FMT_API wchar_t decimal_point_impl(locale_ref loc); +extern template int format_float<double>(double value, int precision, + float_specs specs, buffer<char>& buf); +extern template int format_float<long double>(long double value, int precision, + float_specs specs, + buffer<char>& buf); +int snprintf_float(float value, int precision, float_specs specs, + buffer<char>& buf) = delete; +extern template int snprintf_float<double>(double value, int precision, + float_specs specs, + buffer<char>& buf); +extern template int snprintf_float<long double>(long double value, + int precision, + float_specs specs, + buffer<char>& buf); +} // namespace detail +#endif + +template <typename S, typename Char = char_t<S>, + FMT_ENABLE_IF(detail::is_string<S>::value)> +inline void vformat_to( + detail::buffer<Char>& buf, const S& format_str, + basic_format_args<FMT_BUFFER_CONTEXT(type_identity_t<Char>)> args) { + return detail::vformat_to(buf, to_string_view(format_str), args); +} + +template <typename S, typename... Args, size_t SIZE = inline_buffer_size, + typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>> +inline typename buffer_context<Char>::iterator format_to( + basic_memory_buffer<Char, SIZE>& buf, const S& format_str, Args&&... args) { + const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...); + detail::vformat_to(buf, to_string_view(format_str), vargs); + return detail::buffer_appender<Char>(buf); +} + +template <typename OutputIt, typename Char = char> +using format_context_t = basic_format_context<OutputIt, Char>; + +template <typename OutputIt, typename Char = char> +using format_args_t = basic_format_args<format_context_t<OutputIt, Char>>; + +template <typename OutputIt, typename Char = typename OutputIt::value_type> +using format_to_n_context FMT_DEPRECATED_ALIAS = buffer_context<Char>; + +template <typename OutputIt, typename Char = typename OutputIt::value_type> +using format_to_n_args FMT_DEPRECATED_ALIAS = + basic_format_args<buffer_context<Char>>; + +template <typename OutputIt, typename Char, typename... Args> +FMT_DEPRECATED format_arg_store<buffer_context<Char>, Args...> +make_format_to_n_args(const Args&... args) { + return format_arg_store<buffer_context<Char>, Args...>(args...); +} + +template <typename Char, enable_if_t<(!std::is_same<Char, char>::value), int>> +std::basic_string<Char> detail::vformat( + basic_string_view<Char> format_str, + basic_format_args<buffer_context<type_identity_t<Char>>> args) { + basic_memory_buffer<Char> buffer; + detail::vformat_to(buffer, format_str, args); + return to_string(buffer); +} + +template <typename Char, FMT_ENABLE_IF(std::is_same<Char, wchar_t>::value)> +void vprint(std::FILE* f, basic_string_view<Char> format_str, + wformat_args args) { + wmemory_buffer buffer; + detail::vformat_to(buffer, format_str, args); + buffer.push_back(L'\0'); + if (std::fputws(buffer.data(), f) == -1) + FMT_THROW(system_error(errno, "cannot write to file")); +} + +template <typename Char, FMT_ENABLE_IF(std::is_same<Char, wchar_t>::value)> +void vprint(basic_string_view<Char> format_str, wformat_args args) { + vprint(stdout, format_str, args); +} + +#if FMT_USE_USER_DEFINED_LITERALS +namespace detail { + +# if FMT_USE_UDL_TEMPLATE +template <typename Char, Char... CHARS> class udl_formatter { + public: + template <typename... Args> + std::basic_string<Char> operator()(Args&&... args) const { + static FMT_CONSTEXPR_DECL Char s[] = {CHARS..., '\0'}; + return format(FMT_STRING(s), std::forward<Args>(args)...); + } +}; +# else +template <typename Char> struct udl_formatter { + basic_string_view<Char> str; + + template <typename... Args> + std::basic_string<Char> operator()(Args&&... args) const { + return format(str, std::forward<Args>(args)...); + } +}; +# endif // FMT_USE_UDL_TEMPLATE + +template <typename Char> struct udl_arg { + const Char* str; + + template <typename T> named_arg<Char, T> operator=(T&& value) const { + return {str, std::forward<T>(value)}; + } +}; +} // namespace detail + +inline namespace literals { +# if FMT_USE_UDL_TEMPLATE +# pragma GCC diagnostic push +# pragma GCC diagnostic ignored "-Wpedantic" +# if FMT_CLANG_VERSION +# pragma GCC diagnostic ignored "-Wgnu-string-literal-operator-template" +# endif +template <typename Char, Char... CHARS> +FMT_CONSTEXPR detail::udl_formatter<Char, CHARS...> operator""_format() { + return {}; +} +# pragma GCC diagnostic pop +# else +/** + \rst + User-defined literal equivalent of :func:`fmt::format`. + + **Example**:: + + using namespace fmt::literals; + std::string message = "The answer is {}"_format(42); + \endrst + */ +FMT_CONSTEXPR detail::udl_formatter<char> operator"" _format(const char* s, + size_t n) { + return {{s, n}}; +} +FMT_CONSTEXPR detail::udl_formatter<wchar_t> operator"" _format( + const wchar_t* s, size_t n) { + return {{s, n}}; +} +# endif // FMT_USE_UDL_TEMPLATE + +/** + \rst + User-defined literal equivalent of :func:`fmt::arg`. + + **Example**:: + + using namespace fmt::literals; + fmt::print("Elapsed time: {s:.2f} seconds", "s"_a=1.23); + \endrst + */ +FMT_CONSTEXPR detail::udl_arg<char> operator"" _a(const char* s, size_t) { + return {s}; +} +FMT_CONSTEXPR detail::udl_arg<wchar_t> operator"" _a(const wchar_t* s, size_t) { + return {s}; +} +} // namespace literals +#endif // FMT_USE_USER_DEFINED_LITERALS +FMT_END_NAMESPACE + +#ifdef FMT_HEADER_ONLY +# define FMT_FUNC inline +# include "format-inl.h" +#else +# define FMT_FUNC +#endif + +#endif // FMT_FORMAT_H_ diff --git a/contrib/libs/fmt/include/fmt/locale.h b/contrib/libs/fmt/include/fmt/locale.h new file mode 100644 index 0000000000..7301bf92a2 --- /dev/null +++ b/contrib/libs/fmt/include/fmt/locale.h @@ -0,0 +1,64 @@ +// Formatting library for C++ - std::locale support +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#ifndef FMT_LOCALE_H_ +#define FMT_LOCALE_H_ + +#include <locale> + +#include "format.h" + +FMT_BEGIN_NAMESPACE + +namespace detail { +template <typename Char> +std::basic_string<Char> vformat( + const std::locale& loc, basic_string_view<Char> format_str, + basic_format_args<buffer_context<type_identity_t<Char>>> args) { + basic_memory_buffer<Char> buffer; + detail::vformat_to(buffer, format_str, args, detail::locale_ref(loc)); + return fmt::to_string(buffer); +} +} // namespace detail + +template <typename S, typename Char = char_t<S>> +inline std::basic_string<Char> vformat( + const std::locale& loc, const S& format_str, + basic_format_args<buffer_context<type_identity_t<Char>>> args) { + return detail::vformat(loc, to_string_view(format_str), args); +} + +template <typename S, typename... Args, typename Char = char_t<S>> +inline std::basic_string<Char> format(const std::locale& loc, + const S& format_str, Args&&... args) { + return detail::vformat(loc, to_string_view(format_str), + fmt::make_args_checked<Args...>(format_str, args...)); +} + +template <typename S, typename OutputIt, typename... Args, + typename Char = char_t<S>, + FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value)> +inline OutputIt vformat_to( + OutputIt out, const std::locale& loc, const S& format_str, + basic_format_args<buffer_context<type_identity_t<Char>>> args) { + decltype(detail::get_buffer<Char>(out)) buf(detail::get_buffer_init(out)); + vformat_to(buf, to_string_view(format_str), args, detail::locale_ref(loc)); + return detail::get_iterator(buf); +} + +template <typename OutputIt, typename S, typename... Args, + bool enable = detail::is_output_iterator<OutputIt, char_t<S>>::value> +inline auto format_to(OutputIt out, const std::locale& loc, + const S& format_str, Args&&... args) -> + typename std::enable_if<enable, OutputIt>::type { + const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...); + return vformat_to(out, loc, to_string_view(format_str), vargs); +} + +FMT_END_NAMESPACE + +#endif // FMT_LOCALE_H_ diff --git a/contrib/libs/fmt/include/fmt/os.h b/contrib/libs/fmt/include/fmt/os.h new file mode 100644 index 0000000000..141599f842 --- /dev/null +++ b/contrib/libs/fmt/include/fmt/os.h @@ -0,0 +1,484 @@ +// Formatting library for C++ - optional OS-specific functionality +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#ifndef FMT_OS_H_ +#define FMT_OS_H_ + +#if defined(__MINGW32__) || defined(__CYGWIN__) +// Workaround MinGW bug https://sourceforge.net/p/mingw/bugs/2024/. +# undef __STRICT_ANSI__ +#endif + +#include <cerrno> +#include <clocale> // for locale_t +#include <cstddef> +#include <cstdio> +#include <cstdlib> // for strtod_l + +#if defined __APPLE__ || defined(__FreeBSD__) +# include <xlocale.h> // for LC_NUMERIC_MASK on OS X +#endif + +#if defined(_WIN32) +# include <locale> // for libc++ locale_win32.h +#endif + +#include "format.h" + +// UWP doesn't provide _pipe. +#if FMT_HAS_INCLUDE("winapifamily.h") +# include <winapifamily.h> +#endif +#if (FMT_HAS_INCLUDE(<fcntl.h>) || defined(__APPLE__) || \ + defined(__linux__)) && \ + (!defined(WINAPI_FAMILY) || (WINAPI_FAMILY == WINAPI_FAMILY_DESKTOP_APP)) +# include <fcntl.h> // for O_RDONLY +# define FMT_USE_FCNTL 1 +#else +# define FMT_USE_FCNTL 0 +#endif + +#ifndef FMT_POSIX +# if defined(_WIN32) && !defined(__MINGW32__) +// Fix warnings about deprecated symbols. +# define FMT_POSIX(call) _##call +# else +# define FMT_POSIX(call) call +# endif +#endif + +// Calls to system functions are wrapped in FMT_SYSTEM for testability. +#ifdef FMT_SYSTEM +# define FMT_POSIX_CALL(call) FMT_SYSTEM(call) +#else +# define FMT_SYSTEM(call) ::call +# ifdef _WIN32 +// Fix warnings about deprecated symbols. +# define FMT_POSIX_CALL(call) ::_##call +# else +# define FMT_POSIX_CALL(call) ::call +# endif +#endif + +// Retries the expression while it evaluates to error_result and errno +// equals to EINTR. +#ifndef _WIN32 +# define FMT_RETRY_VAL(result, expression, error_result) \ + do { \ + (result) = (expression); \ + } while ((result) == (error_result) && errno == EINTR) +#else +# define FMT_RETRY_VAL(result, expression, error_result) result = (expression) +#endif + +#define FMT_RETRY(result, expression) FMT_RETRY_VAL(result, expression, -1) + +FMT_BEGIN_NAMESPACE + +/** + \rst + A reference to a null-terminated string. It can be constructed from a C + string or ``std::string``. + + You can use one of the following type aliases for common character types: + + +---------------+-----------------------------+ + | Type | Definition | + +===============+=============================+ + | cstring_view | basic_cstring_view<char> | + +---------------+-----------------------------+ + | wcstring_view | basic_cstring_view<wchar_t> | + +---------------+-----------------------------+ + + This class is most useful as a parameter type to allow passing + different types of strings to a function, for example:: + + template <typename... Args> + std::string format(cstring_view format_str, const Args & ... args); + + format("{}", 42); + format(std::string("{}"), 42); + \endrst + */ +template <typename Char> class basic_cstring_view { + private: + const Char* data_; + + public: + /** Constructs a string reference object from a C string. */ + basic_cstring_view(const Char* s) : data_(s) {} + + /** + \rst + Constructs a string reference from an ``std::string`` object. + \endrst + */ + basic_cstring_view(const std::basic_string<Char>& s) : data_(s.c_str()) {} + + /** Returns the pointer to a C string. */ + const Char* c_str() const { return data_; } +}; + +using cstring_view = basic_cstring_view<char>; +using wcstring_view = basic_cstring_view<wchar_t>; + +// An error code. +class error_code { + private: + int value_; + + public: + explicit error_code(int value = 0) FMT_NOEXCEPT : value_(value) {} + + int get() const FMT_NOEXCEPT { return value_; } +}; + +#ifdef _WIN32 +namespace detail { +// A converter from UTF-16 to UTF-8. +// It is only provided for Windows since other systems support UTF-8 natively. +class utf16_to_utf8 { + private: + memory_buffer buffer_; + + public: + utf16_to_utf8() {} + FMT_API explicit utf16_to_utf8(wstring_view s); + operator string_view() const { return string_view(&buffer_[0], size()); } + size_t size() const { return buffer_.size() - 1; } + const char* c_str() const { return &buffer_[0]; } + std::string str() const { return std::string(&buffer_[0], size()); } + + // Performs conversion returning a system error code instead of + // throwing exception on conversion error. This method may still throw + // in case of memory allocation error. + FMT_API int convert(wstring_view s); +}; + +FMT_API void format_windows_error(buffer<char>& out, int error_code, + string_view message) FMT_NOEXCEPT; +} // namespace detail + +/** A Windows error. */ +class windows_error : public system_error { + private: + FMT_API void init(int error_code, string_view format_str, format_args args); + + public: + /** + \rst + Constructs a :class:`fmt::windows_error` object with the description + of the form + + .. parsed-literal:: + *<message>*: *<system-message>* + + where *<message>* is the formatted message and *<system-message>* is the + system message corresponding to the error code. + *error_code* is a Windows error code as given by ``GetLastError``. + If *error_code* is not a valid error code such as -1, the system message + will look like "error -1". + + **Example**:: + + // This throws a windows_error with the description + // cannot open file 'madeup': The system cannot find the file specified. + // or similar (system message may vary). + const char *filename = "madeup"; + LPOFSTRUCT of = LPOFSTRUCT(); + HFILE file = OpenFile(filename, &of, OF_READ); + if (file == HFILE_ERROR) { + throw fmt::windows_error(GetLastError(), + "cannot open file '{}'", filename); + } + \endrst + */ + template <typename... Args> + windows_error(int error_code, string_view message, const Args&... args) { + init(error_code, message, make_format_args(args...)); + } +}; + +// Reports a Windows error without throwing an exception. +// Can be used to report errors from destructors. +FMT_API void report_windows_error(int error_code, + string_view message) FMT_NOEXCEPT; +#endif // _WIN32 + +// A buffered file. +class buffered_file { + private: + FILE* file_; + + friend class file; + + explicit buffered_file(FILE* f) : file_(f) {} + + public: + buffered_file(const buffered_file&) = delete; + void operator=(const buffered_file&) = delete; + + // Constructs a buffered_file object which doesn't represent any file. + buffered_file() FMT_NOEXCEPT : file_(nullptr) {} + + // Destroys the object closing the file it represents if any. + FMT_API ~buffered_file() FMT_NOEXCEPT; + + public: + buffered_file(buffered_file&& other) FMT_NOEXCEPT : file_(other.file_) { + other.file_ = nullptr; + } + + buffered_file& operator=(buffered_file&& other) { + close(); + file_ = other.file_; + other.file_ = nullptr; + return *this; + } + + // Opens a file. + FMT_API buffered_file(cstring_view filename, cstring_view mode); + + // Closes the file. + FMT_API void close(); + + // Returns the pointer to a FILE object representing this file. + FILE* get() const FMT_NOEXCEPT { return file_; } + + // We place parentheses around fileno to workaround a bug in some versions + // of MinGW that define fileno as a macro. + FMT_API int(fileno)() const; + + void vprint(string_view format_str, format_args args) { + fmt::vprint(file_, format_str, args); + } + + template <typename... Args> + inline void print(string_view format_str, const Args&... args) { + vprint(format_str, make_format_args(args...)); + } +}; + +#if FMT_USE_FCNTL +// A file. Closed file is represented by a file object with descriptor -1. +// Methods that are not declared with FMT_NOEXCEPT may throw +// fmt::system_error in case of failure. Note that some errors such as +// closing the file multiple times will cause a crash on Windows rather +// than an exception. You can get standard behavior by overriding the +// invalid parameter handler with _set_invalid_parameter_handler. +class file { + private: + int fd_; // File descriptor. + + // Constructs a file object with a given descriptor. + explicit file(int fd) : fd_(fd) {} + + public: + // Possible values for the oflag argument to the constructor. + enum { + RDONLY = FMT_POSIX(O_RDONLY), // Open for reading only. + WRONLY = FMT_POSIX(O_WRONLY), // Open for writing only. + RDWR = FMT_POSIX(O_RDWR), // Open for reading and writing. + CREATE = FMT_POSIX(O_CREAT), // Create if the file doesn't exist. + APPEND = FMT_POSIX(O_APPEND) // Open in append mode. + }; + + // Constructs a file object which doesn't represent any file. + file() FMT_NOEXCEPT : fd_(-1) {} + + // Opens a file and constructs a file object representing this file. + FMT_API file(cstring_view path, int oflag); + + public: + file(const file&) = delete; + void operator=(const file&) = delete; + + file(file&& other) FMT_NOEXCEPT : fd_(other.fd_) { other.fd_ = -1; } + + file& operator=(file&& other) FMT_NOEXCEPT { + close(); + fd_ = other.fd_; + other.fd_ = -1; + return *this; + } + + // Destroys the object closing the file it represents if any. + FMT_API ~file() FMT_NOEXCEPT; + + // Returns the file descriptor. + int descriptor() const FMT_NOEXCEPT { return fd_; } + + // Closes the file. + FMT_API void close(); + + // Returns the file size. The size has signed type for consistency with + // stat::st_size. + FMT_API long long size() const; + + // Attempts to read count bytes from the file into the specified buffer. + FMT_API size_t read(void* buffer, size_t count); + + // Attempts to write count bytes from the specified buffer to the file. + FMT_API size_t write(const void* buffer, size_t count); + + // Duplicates a file descriptor with the dup function and returns + // the duplicate as a file object. + FMT_API static file dup(int fd); + + // Makes fd be the copy of this file descriptor, closing fd first if + // necessary. + FMT_API void dup2(int fd); + + // Makes fd be the copy of this file descriptor, closing fd first if + // necessary. + FMT_API void dup2(int fd, error_code& ec) FMT_NOEXCEPT; + + // Creates a pipe setting up read_end and write_end file objects for reading + // and writing respectively. + FMT_API static void pipe(file& read_end, file& write_end); + + // Creates a buffered_file object associated with this file and detaches + // this file object from the file. + FMT_API buffered_file fdopen(const char* mode); +}; + +// Returns the memory page size. +long getpagesize(); + +namespace detail { + +struct buffer_size { + size_t value = 0; + buffer_size operator=(size_t val) const { + auto bs = buffer_size(); + bs.value = val; + return bs; + } +}; + +struct ostream_params { + int oflag = file::WRONLY | file::CREATE; + size_t buffer_size = BUFSIZ > 32768 ? BUFSIZ : 32768; + + ostream_params() {} + + template <typename... T> + ostream_params(T... params, int oflag) : ostream_params(params...) { + this->oflag = oflag; + } + + template <typename... T> + ostream_params(T... params, detail::buffer_size bs) + : ostream_params(params...) { + this->buffer_size = bs.value; + } +}; +} // namespace detail + +static constexpr detail::buffer_size buffer_size; + +// A fast output stream which is not thread-safe. +class ostream final : private detail::buffer<char> { + private: + file file_; + + void flush() { + if (size() == 0) return; + file_.write(data(), size()); + clear(); + } + + FMT_API void grow(size_t) override final; + + ostream(cstring_view path, const detail::ostream_params& params) + : file_(path, params.oflag) { + set(new char[params.buffer_size], params.buffer_size); + } + + public: + ostream(ostream&& other) + : detail::buffer<char>(other.data(), other.size(), other.capacity()), + file_(std::move(other.file_)) { + other.set(nullptr, 0); + } + ~ostream() { + flush(); + delete[] data(); + } + + template <typename... T> + friend ostream output_file(cstring_view path, T... params); + + void close() { + flush(); + file_.close(); + } + + template <typename S, typename... Args> + void print(const S& format_str, const Args&... args) { + format_to(detail::buffer_appender<char>(*this), format_str, args...); + } +}; + +/** + Opens a file for writing. Supported parameters passed in `params`: + * ``<integer>``: Output flags (``file::WRONLY | file::CREATE`` by default) + * ``buffer_size=<integer>``: Output buffer size + */ +template <typename... T> +inline ostream output_file(cstring_view path, T... params) { + return {path, detail::ostream_params(params...)}; +} +#endif // FMT_USE_FCNTL + +#ifdef FMT_LOCALE +// A "C" numeric locale. +class locale { + private: +# if defined(_WIN32) && !defined(_LIBCPP_VERSION) + using locale_t = _locale_t; + + static void freelocale(locale_t loc) { _free_locale(loc); } + + static double strtod_l(const char* nptr, char** endptr, _locale_t loc) { + return _strtod_l(nptr, endptr, loc); + } +# endif + + locale_t locale_; + + public: + using type = locale_t; + locale(const locale&) = delete; + void operator=(const locale&) = delete; + + locale() { +# if !defined(_WIN32) || defined(_LIBCPP_VERSION) + locale_ = FMT_SYSTEM(newlocale(LC_NUMERIC_MASK, "C", nullptr)); +# else + locale_ = _create_locale(LC_NUMERIC, "C"); +# endif + if (!locale_) FMT_THROW(system_error(errno, "cannot create locale")); + } + ~locale() { freelocale(locale_); } + + type get() const { return locale_; } + + // Converts string to floating-point number and advances str past the end + // of the parsed input. + double strtod(const char*& str) const { + char* end = nullptr; + double result = strtod_l(str, &end, locale_); + str = end; + return result; + } +}; +using Locale FMT_DEPRECATED_ALIAS = locale; +#endif // FMT_LOCALE +FMT_END_NAMESPACE + +#endif // FMT_OS_H_ diff --git a/contrib/libs/fmt/include/fmt/ostream.h b/contrib/libs/fmt/include/fmt/ostream.h new file mode 100644 index 0000000000..29c58ec13b --- /dev/null +++ b/contrib/libs/fmt/include/fmt/ostream.h @@ -0,0 +1,177 @@ +// Formatting library for C++ - std::ostream support +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#ifndef FMT_OSTREAM_H_ +#define FMT_OSTREAM_H_ + +#include <ostream> + +#include "format.h" + +FMT_BEGIN_NAMESPACE + +template <typename Char> class basic_printf_parse_context; +template <typename OutputIt, typename Char> class basic_printf_context; + +namespace detail { + +template <class Char> class formatbuf : public std::basic_streambuf<Char> { + private: + using int_type = typename std::basic_streambuf<Char>::int_type; + using traits_type = typename std::basic_streambuf<Char>::traits_type; + + buffer<Char>& buffer_; + + public: + formatbuf(buffer<Char>& buf) : buffer_(buf) {} + + protected: + // The put-area is actually always empty. This makes the implementation + // simpler and has the advantage that the streambuf and the buffer are always + // in sync and sputc never writes into uninitialized memory. The obvious + // disadvantage is that each call to sputc always results in a (virtual) call + // to overflow. There is no disadvantage here for sputn since this always + // results in a call to xsputn. + + int_type overflow(int_type ch = traits_type::eof()) FMT_OVERRIDE { + if (!traits_type::eq_int_type(ch, traits_type::eof())) + buffer_.push_back(static_cast<Char>(ch)); + return ch; + } + + std::streamsize xsputn(const Char* s, std::streamsize count) FMT_OVERRIDE { + buffer_.append(s, s + count); + return count; + } +}; + +struct converter { + template <typename T, FMT_ENABLE_IF(is_integral<T>::value)> converter(T); +}; + +template <typename Char> struct test_stream : std::basic_ostream<Char> { + private: + void_t<> operator<<(converter); +}; + +// Hide insertion operators for built-in types. +template <typename Char, typename Traits> +void_t<> operator<<(std::basic_ostream<Char, Traits>&, Char); +template <typename Char, typename Traits> +void_t<> operator<<(std::basic_ostream<Char, Traits>&, char); +template <typename Traits> +void_t<> operator<<(std::basic_ostream<char, Traits>&, char); +template <typename Traits> +void_t<> operator<<(std::basic_ostream<char, Traits>&, signed char); +template <typename Traits> +void_t<> operator<<(std::basic_ostream<char, Traits>&, unsigned char); + +// Checks if T has a user-defined operator<< (e.g. not a member of +// std::ostream). +template <typename T, typename Char> class is_streamable { + private: + template <typename U> + static bool_constant<!std::is_same<decltype(std::declval<test_stream<Char>&>() + << std::declval<U>()), + void_t<>>::value> + test(int); + + template <typename> static std::false_type test(...); + + using result = decltype(test<T>(0)); + + public: + static const bool value = result::value; +}; + +// Write the content of buf to os. +template <typename Char> +void write_buffer(std::basic_ostream<Char>& os, buffer<Char>& buf) { + const Char* buf_data = buf.data(); + using unsigned_streamsize = std::make_unsigned<std::streamsize>::type; + unsigned_streamsize size = buf.size(); + unsigned_streamsize max_size = to_unsigned(max_value<std::streamsize>()); + do { + unsigned_streamsize n = size <= max_size ? size : max_size; + os.write(buf_data, static_cast<std::streamsize>(n)); + buf_data += n; + size -= n; + } while (size != 0); +} + +template <typename Char, typename T> +void format_value(buffer<Char>& buf, const T& value, + locale_ref loc = locale_ref()) { + formatbuf<Char> format_buf(buf); + std::basic_ostream<Char> output(&format_buf); +#if !defined(FMT_STATIC_THOUSANDS_SEPARATOR) + if (loc) output.imbue(loc.get<std::locale>()); +#endif + output << value; + output.exceptions(std::ios_base::failbit | std::ios_base::badbit); + buf.try_resize(buf.size()); +} + +// Formats an object of type T that has an overloaded ostream operator<<. +template <typename T, typename Char> +struct fallback_formatter<T, Char, enable_if_t<is_streamable<T, Char>::value>> + : private formatter<basic_string_view<Char>, Char> { + FMT_CONSTEXPR auto parse(basic_format_parse_context<Char>& ctx) + -> decltype(ctx.begin()) { + return formatter<basic_string_view<Char>, Char>::parse(ctx); + } + template <typename ParseCtx, + FMT_ENABLE_IF(std::is_same< + ParseCtx, basic_printf_parse_context<Char>>::value)> + auto parse(ParseCtx& ctx) -> decltype(ctx.begin()) { + return ctx.begin(); + } + + template <typename OutputIt> + auto format(const T& value, basic_format_context<OutputIt, Char>& ctx) + -> OutputIt { + basic_memory_buffer<Char> buffer; + format_value(buffer, value, ctx.locale()); + basic_string_view<Char> str(buffer.data(), buffer.size()); + return formatter<basic_string_view<Char>, Char>::format(str, ctx); + } + template <typename OutputIt> + auto format(const T& value, basic_printf_context<OutputIt, Char>& ctx) + -> OutputIt { + basic_memory_buffer<Char> buffer; + format_value(buffer, value, ctx.locale()); + return std::copy(buffer.begin(), buffer.end(), ctx.out()); + } +}; +} // namespace detail + +template <typename Char> +void vprint(std::basic_ostream<Char>& os, basic_string_view<Char> format_str, + basic_format_args<buffer_context<type_identity_t<Char>>> args) { + basic_memory_buffer<Char> buffer; + detail::vformat_to(buffer, format_str, args); + detail::write_buffer(os, buffer); +} + +/** + \rst + Prints formatted data to the stream *os*. + + **Example**:: + + fmt::print(cerr, "Don't {}!", "panic"); + \endrst + */ +template <typename S, typename... Args, + typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>> +void print(std::basic_ostream<Char>& os, const S& format_str, Args&&... args) { + vprint(os, to_string_view(format_str), + fmt::make_args_checked<Args...>(format_str, args...)); +} +FMT_END_NAMESPACE + +#endif // FMT_OSTREAM_H_ diff --git a/contrib/libs/fmt/include/fmt/printf.h b/contrib/libs/fmt/include/fmt/printf.h new file mode 100644 index 0000000000..8c28ac2327 --- /dev/null +++ b/contrib/libs/fmt/include/fmt/printf.h @@ -0,0 +1,751 @@ +// Formatting library for C++ - legacy printf implementation +// +// Copyright (c) 2012 - 2016, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#ifndef FMT_PRINTF_H_ +#define FMT_PRINTF_H_ + +#include <algorithm> // std::max +#include <limits> // std::numeric_limits + +#include "ostream.h" + +FMT_BEGIN_NAMESPACE +namespace detail { + +// Checks if a value fits in int - used to avoid warnings about comparing +// signed and unsigned integers. +template <bool IsSigned> struct int_checker { + template <typename T> static bool fits_in_int(T value) { + unsigned max = max_value<int>(); + return value <= max; + } + static bool fits_in_int(bool) { return true; } +}; + +template <> struct int_checker<true> { + template <typename T> static bool fits_in_int(T value) { + return value >= (std::numeric_limits<int>::min)() && + value <= max_value<int>(); + } + static bool fits_in_int(int) { return true; } +}; + +class printf_precision_handler { + public: + template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)> + int operator()(T value) { + if (!int_checker<std::numeric_limits<T>::is_signed>::fits_in_int(value)) + FMT_THROW(format_error("number is too big")); + return (std::max)(static_cast<int>(value), 0); + } + + template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)> + int operator()(T) { + FMT_THROW(format_error("precision is not integer")); + return 0; + } +}; + +// An argument visitor that returns true iff arg is a zero integer. +class is_zero_int { + public: + template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)> + bool operator()(T value) { + return value == 0; + } + + template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)> + bool operator()(T) { + return false; + } +}; + +template <typename T> struct make_unsigned_or_bool : std::make_unsigned<T> {}; + +template <> struct make_unsigned_or_bool<bool> { using type = bool; }; + +template <typename T, typename Context> class arg_converter { + private: + using char_type = typename Context::char_type; + + basic_format_arg<Context>& arg_; + char_type type_; + + public: + arg_converter(basic_format_arg<Context>& arg, char_type type) + : arg_(arg), type_(type) {} + + void operator()(bool value) { + if (type_ != 's') operator()<bool>(value); + } + + template <typename U, FMT_ENABLE_IF(std::is_integral<U>::value)> + void operator()(U value) { + bool is_signed = type_ == 'd' || type_ == 'i'; + using target_type = conditional_t<std::is_same<T, void>::value, U, T>; + if (const_check(sizeof(target_type) <= sizeof(int))) { + // Extra casts are used to silence warnings. + if (is_signed) { + arg_ = detail::make_arg<Context>( + static_cast<int>(static_cast<target_type>(value))); + } else { + using unsigned_type = typename make_unsigned_or_bool<target_type>::type; + arg_ = detail::make_arg<Context>( + static_cast<unsigned>(static_cast<unsigned_type>(value))); + } + } else { + if (is_signed) { + // glibc's printf doesn't sign extend arguments of smaller types: + // std::printf("%lld", -42); // prints "4294967254" + // but we don't have to do the same because it's a UB. + arg_ = detail::make_arg<Context>(static_cast<long long>(value)); + } else { + arg_ = detail::make_arg<Context>( + static_cast<typename make_unsigned_or_bool<U>::type>(value)); + } + } + } + + template <typename U, FMT_ENABLE_IF(!std::is_integral<U>::value)> + void operator()(U) {} // No conversion needed for non-integral types. +}; + +// Converts an integer argument to T for printf, if T is an integral type. +// If T is void, the argument is converted to corresponding signed or unsigned +// type depending on the type specifier: 'd' and 'i' - signed, other - +// unsigned). +template <typename T, typename Context, typename Char> +void convert_arg(basic_format_arg<Context>& arg, Char type) { + visit_format_arg(arg_converter<T, Context>(arg, type), arg); +} + +// Converts an integer argument to char for printf. +template <typename Context> class char_converter { + private: + basic_format_arg<Context>& arg_; + + public: + explicit char_converter(basic_format_arg<Context>& arg) : arg_(arg) {} + + template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)> + void operator()(T value) { + arg_ = detail::make_arg<Context>( + static_cast<typename Context::char_type>(value)); + } + + template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)> + void operator()(T) {} // No conversion needed for non-integral types. +}; + +// An argument visitor that return a pointer to a C string if argument is a +// string or null otherwise. +template <typename Char> struct get_cstring { + template <typename T> const Char* operator()(T) { return nullptr; } + const Char* operator()(const Char* s) { return s; } +}; + +// Checks if an argument is a valid printf width specifier and sets +// left alignment if it is negative. +template <typename Char> class printf_width_handler { + private: + using format_specs = basic_format_specs<Char>; + + format_specs& specs_; + + public: + explicit printf_width_handler(format_specs& specs) : specs_(specs) {} + + template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)> + unsigned operator()(T value) { + auto width = static_cast<uint32_or_64_or_128_t<T>>(value); + if (detail::is_negative(value)) { + specs_.align = align::left; + width = 0 - width; + } + unsigned int_max = max_value<int>(); + if (width > int_max) FMT_THROW(format_error("number is too big")); + return static_cast<unsigned>(width); + } + + template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)> + unsigned operator()(T) { + FMT_THROW(format_error("width is not integer")); + return 0; + } +}; + +template <typename Char, typename Context> +void vprintf(buffer<Char>& buf, basic_string_view<Char> format, + basic_format_args<Context> args) { + Context(buffer_appender<Char>(buf), format, args).format(); +} +} // namespace detail + +// For printing into memory_buffer. +template <typename Char, typename Context> +FMT_DEPRECATED void printf(detail::buffer<Char>& buf, + basic_string_view<Char> format, + basic_format_args<Context> args) { + return detail::vprintf(buf, format, args); +} +using detail::vprintf; + +template <typename Char> +class basic_printf_parse_context : public basic_format_parse_context<Char> { + using basic_format_parse_context<Char>::basic_format_parse_context; +}; +template <typename OutputIt, typename Char> class basic_printf_context; + +/** + \rst + The ``printf`` argument formatter. + \endrst + */ +template <typename OutputIt, typename Char> +class printf_arg_formatter : public detail::arg_formatter_base<OutputIt, Char> { + public: + using iterator = OutputIt; + + private: + using char_type = Char; + using base = detail::arg_formatter_base<OutputIt, Char>; + using context_type = basic_printf_context<OutputIt, Char>; + + context_type& context_; + + void write_null_pointer(char) { + this->specs()->type = 0; + this->write("(nil)"); + } + + void write_null_pointer(wchar_t) { + this->specs()->type = 0; + this->write(L"(nil)"); + } + + public: + using format_specs = typename base::format_specs; + + /** + \rst + Constructs an argument formatter object. + *buffer* is a reference to the output buffer and *specs* contains format + specifier information for standard argument types. + \endrst + */ + printf_arg_formatter(iterator iter, format_specs& specs, context_type& ctx) + : base(iter, &specs, detail::locale_ref()), context_(ctx) {} + + template <typename T, FMT_ENABLE_IF(fmt::detail::is_integral<T>::value)> + iterator operator()(T value) { + // MSVC2013 fails to compile separate overloads for bool and char_type so + // use std::is_same instead. + if (std::is_same<T, bool>::value) { + format_specs& fmt_specs = *this->specs(); + if (fmt_specs.type != 's') return base::operator()(value ? 1 : 0); + fmt_specs.type = 0; + this->write(value != 0); + } else if (std::is_same<T, char_type>::value) { + format_specs& fmt_specs = *this->specs(); + if (fmt_specs.type && fmt_specs.type != 'c') + return (*this)(static_cast<int>(value)); + fmt_specs.sign = sign::none; + fmt_specs.alt = false; + fmt_specs.fill[0] = ' '; // Ignore '0' flag for char types. + // align::numeric needs to be overwritten here since the '0' flag is + // ignored for non-numeric types + if (fmt_specs.align == align::none || fmt_specs.align == align::numeric) + fmt_specs.align = align::right; + return base::operator()(value); + } else { + return base::operator()(value); + } + return this->out(); + } + + template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)> + iterator operator()(T value) { + return base::operator()(value); + } + + /** Formats a null-terminated C string. */ + iterator operator()(const char* value) { + if (value) + base::operator()(value); + else if (this->specs()->type == 'p') + write_null_pointer(char_type()); + else + this->write("(null)"); + return this->out(); + } + + /** Formats a null-terminated wide C string. */ + iterator operator()(const wchar_t* value) { + if (value) + base::operator()(value); + else if (this->specs()->type == 'p') + write_null_pointer(char_type()); + else + this->write(L"(null)"); + return this->out(); + } + + iterator operator()(basic_string_view<char_type> value) { + return base::operator()(value); + } + + iterator operator()(monostate value) { return base::operator()(value); } + + /** Formats a pointer. */ + iterator operator()(const void* value) { + if (value) return base::operator()(value); + this->specs()->type = 0; + write_null_pointer(char_type()); + return this->out(); + } + + /** Formats an argument of a custom (user-defined) type. */ + iterator operator()(typename basic_format_arg<context_type>::handle handle) { + handle.format(context_.parse_context(), context_); + return this->out(); + } +}; + +template <typename T> struct printf_formatter { + printf_formatter() = delete; + + template <typename ParseContext> + auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { + return ctx.begin(); + } + + template <typename FormatContext> + auto format(const T& value, FormatContext& ctx) -> decltype(ctx.out()) { + detail::format_value(detail::get_container(ctx.out()), value); + return ctx.out(); + } +}; + +/** + This template formats data and writes the output through an output iterator. + */ +template <typename OutputIt, typename Char> class basic_printf_context { + public: + /** The character type for the output. */ + using char_type = Char; + using iterator = OutputIt; + using format_arg = basic_format_arg<basic_printf_context>; + using parse_context_type = basic_printf_parse_context<Char>; + template <typename T> using formatter_type = printf_formatter<T>; + + private: + using format_specs = basic_format_specs<char_type>; + + OutputIt out_; + basic_format_args<basic_printf_context> args_; + parse_context_type parse_ctx_; + + static void parse_flags(format_specs& specs, const Char*& it, + const Char* end); + + // Returns the argument with specified index or, if arg_index is -1, the next + // argument. + format_arg get_arg(int arg_index = -1); + + // Parses argument index, flags and width and returns the argument index. + int parse_header(const Char*& it, const Char* end, format_specs& specs); + + public: + /** + \rst + Constructs a ``printf_context`` object. References to the arguments are + stored in the context object so make sure they have appropriate lifetimes. + \endrst + */ + basic_printf_context(OutputIt out, basic_string_view<char_type> format_str, + basic_format_args<basic_printf_context> args) + : out_(out), args_(args), parse_ctx_(format_str) {} + + OutputIt out() { return out_; } + void advance_to(OutputIt it) { out_ = it; } + + detail::locale_ref locale() { return {}; } + + format_arg arg(int id) const { return args_.get(id); } + + parse_context_type& parse_context() { return parse_ctx_; } + + FMT_CONSTEXPR void on_error(const char* message) { + parse_ctx_.on_error(message); + } + + /** Formats stored arguments and writes the output to the range. */ + template <typename ArgFormatter = printf_arg_formatter<OutputIt, Char>> + OutputIt format(); +}; + +template <typename OutputIt, typename Char> +void basic_printf_context<OutputIt, Char>::parse_flags(format_specs& specs, + const Char*& it, + const Char* end) { + for (; it != end; ++it) { + switch (*it) { + case '-': + specs.align = align::left; + break; + case '+': + specs.sign = sign::plus; + break; + case '0': + specs.fill[0] = '0'; + break; + case ' ': + if (specs.sign != sign::plus) { + specs.sign = sign::space; + } + break; + case '#': + specs.alt = true; + break; + default: + return; + } + } +} + +template <typename OutputIt, typename Char> +typename basic_printf_context<OutputIt, Char>::format_arg +basic_printf_context<OutputIt, Char>::get_arg(int arg_index) { + if (arg_index < 0) + arg_index = parse_ctx_.next_arg_id(); + else + parse_ctx_.check_arg_id(--arg_index); + return detail::get_arg(*this, arg_index); +} + +template <typename OutputIt, typename Char> +int basic_printf_context<OutputIt, Char>::parse_header(const Char*& it, + const Char* end, + format_specs& specs) { + int arg_index = -1; + char_type c = *it; + if (c >= '0' && c <= '9') { + // Parse an argument index (if followed by '$') or a width possibly + // preceded with '0' flag(s). + detail::error_handler eh; + int value = parse_nonnegative_int(it, end, eh); + if (it != end && *it == '$') { // value is an argument index + ++it; + arg_index = value; + } else { + if (c == '0') specs.fill[0] = '0'; + if (value != 0) { + // Nonzero value means that we parsed width and don't need to + // parse it or flags again, so return now. + specs.width = value; + return arg_index; + } + } + } + parse_flags(specs, it, end); + // Parse width. + if (it != end) { + if (*it >= '0' && *it <= '9') { + detail::error_handler eh; + specs.width = parse_nonnegative_int(it, end, eh); + } else if (*it == '*') { + ++it; + specs.width = static_cast<int>(visit_format_arg( + detail::printf_width_handler<char_type>(specs), get_arg())); + } + } + return arg_index; +} + +template <typename OutputIt, typename Char> +template <typename ArgFormatter> +OutputIt basic_printf_context<OutputIt, Char>::format() { + auto out = this->out(); + const Char* start = parse_ctx_.begin(); + const Char* end = parse_ctx_.end(); + auto it = start; + while (it != end) { + char_type c = *it++; + if (c != '%') continue; + if (it != end && *it == c) { + out = std::copy(start, it, out); + start = ++it; + continue; + } + out = std::copy(start, it - 1, out); + + format_specs specs; + specs.align = align::right; + + // Parse argument index, flags and width. + int arg_index = parse_header(it, end, specs); + if (arg_index == 0) on_error("argument not found"); + + // Parse precision. + if (it != end && *it == '.') { + ++it; + c = it != end ? *it : 0; + if ('0' <= c && c <= '9') { + detail::error_handler eh; + specs.precision = parse_nonnegative_int(it, end, eh); + } else if (c == '*') { + ++it; + specs.precision = static_cast<int>( + visit_format_arg(detail::printf_precision_handler(), get_arg())); + } else { + specs.precision = 0; + } + } + + format_arg arg = get_arg(arg_index); + // For d, i, o, u, x, and X conversion specifiers, if a precision is + // specified, the '0' flag is ignored + if (specs.precision >= 0 && arg.is_integral()) + specs.fill[0] = + ' '; // Ignore '0' flag for non-numeric types or if '-' present. + if (specs.precision >= 0 && arg.type() == detail::type::cstring_type) { + auto str = visit_format_arg(detail::get_cstring<Char>(), arg); + auto str_end = str + specs.precision; + auto nul = std::find(str, str_end, Char()); + arg = detail::make_arg<basic_printf_context>(basic_string_view<Char>( + str, + detail::to_unsigned(nul != str_end ? nul - str : specs.precision))); + } + if (specs.alt && visit_format_arg(detail::is_zero_int(), arg)) + specs.alt = false; + if (specs.fill[0] == '0') { + if (arg.is_arithmetic() && specs.align != align::left) + specs.align = align::numeric; + else + specs.fill[0] = ' '; // Ignore '0' flag for non-numeric types or if '-' + // flag is also present. + } + + // Parse length and convert the argument to the required type. + c = it != end ? *it++ : 0; + char_type t = it != end ? *it : 0; + using detail::convert_arg; + switch (c) { + case 'h': + if (t == 'h') { + ++it; + t = it != end ? *it : 0; + convert_arg<signed char>(arg, t); + } else { + convert_arg<short>(arg, t); + } + break; + case 'l': + if (t == 'l') { + ++it; + t = it != end ? *it : 0; + convert_arg<long long>(arg, t); + } else { + convert_arg<long>(arg, t); + } + break; + case 'j': + convert_arg<intmax_t>(arg, t); + break; + case 'z': + convert_arg<size_t>(arg, t); + break; + case 't': + convert_arg<std::ptrdiff_t>(arg, t); + break; + case 'L': + // printf produces garbage when 'L' is omitted for long double, no + // need to do the same. + break; + default: + --it; + convert_arg<void>(arg, c); + } + + // Parse type. + if (it == end) FMT_THROW(format_error("invalid format string")); + specs.type = static_cast<char>(*it++); + if (arg.is_integral()) { + // Normalize type. + switch (specs.type) { + case 'i': + case 'u': + specs.type = 'd'; + break; + case 'c': + visit_format_arg(detail::char_converter<basic_printf_context>(arg), + arg); + break; + } + } + + start = it; + + // Format argument. + out = visit_format_arg(ArgFormatter(out, specs, *this), arg); + } + return std::copy(start, it, out); +} + +template <typename Char> +using basic_printf_context_t = + basic_printf_context<detail::buffer_appender<Char>, Char>; + +using printf_context = basic_printf_context_t<char>; +using wprintf_context = basic_printf_context_t<wchar_t>; + +using printf_args = basic_format_args<printf_context>; +using wprintf_args = basic_format_args<wprintf_context>; + +/** + \rst + Constructs an `~fmt::format_arg_store` object that contains references to + arguments and can be implicitly converted to `~fmt::printf_args`. + \endrst + */ +template <typename... Args> +inline format_arg_store<printf_context, Args...> make_printf_args( + const Args&... args) { + return {args...}; +} + +/** + \rst + Constructs an `~fmt::format_arg_store` object that contains references to + arguments and can be implicitly converted to `~fmt::wprintf_args`. + \endrst + */ +template <typename... Args> +inline format_arg_store<wprintf_context, Args...> make_wprintf_args( + const Args&... args) { + return {args...}; +} + +template <typename S, typename Char = char_t<S>> +inline std::basic_string<Char> vsprintf( + const S& format, + basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) { + basic_memory_buffer<Char> buffer; + vprintf(buffer, to_string_view(format), args); + return to_string(buffer); +} + +/** + \rst + Formats arguments and returns the result as a string. + + **Example**:: + + std::string message = fmt::sprintf("The answer is %d", 42); + \endrst +*/ +template <typename S, typename... Args, + typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>> +inline std::basic_string<Char> sprintf(const S& format, const Args&... args) { + using context = basic_printf_context_t<Char>; + return vsprintf(to_string_view(format), make_format_args<context>(args...)); +} + +template <typename S, typename Char = char_t<S>> +inline int vfprintf( + std::FILE* f, const S& format, + basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) { + basic_memory_buffer<Char> buffer; + vprintf(buffer, to_string_view(format), args); + size_t size = buffer.size(); + return std::fwrite(buffer.data(), sizeof(Char), size, f) < size + ? -1 + : static_cast<int>(size); +} + +/** + \rst + Prints formatted data to the file *f*. + + **Example**:: + + fmt::fprintf(stderr, "Don't %s!", "panic"); + \endrst + */ +template <typename S, typename... Args, + typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>> +inline int fprintf(std::FILE* f, const S& format, const Args&... args) { + using context = basic_printf_context_t<Char>; + return vfprintf(f, to_string_view(format), + make_format_args<context>(args...)); +} + +template <typename S, typename Char = char_t<S>> +inline int vprintf( + const S& format, + basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) { + return vfprintf(stdout, to_string_view(format), args); +} + +/** + \rst + Prints formatted data to ``stdout``. + + **Example**:: + + fmt::printf("Elapsed time: %.2f seconds", 1.23); + \endrst + */ +template <typename S, typename... Args, + FMT_ENABLE_IF(detail::is_string<S>::value)> +inline int printf(const S& format_str, const Args&... args) { + using context = basic_printf_context_t<char_t<S>>; + return vprintf(to_string_view(format_str), + make_format_args<context>(args...)); +} + +template <typename S, typename Char = char_t<S>> +inline int vfprintf( + std::basic_ostream<Char>& os, const S& format, + basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) { + basic_memory_buffer<Char> buffer; + vprintf(buffer, to_string_view(format), args); + detail::write_buffer(os, buffer); + return static_cast<int>(buffer.size()); +} + +/** Formats arguments and writes the output to the range. */ +template <typename ArgFormatter, typename Char, + typename Context = + basic_printf_context<typename ArgFormatter::iterator, Char>> +typename ArgFormatter::iterator vprintf( + detail::buffer<Char>& out, basic_string_view<Char> format_str, + basic_format_args<type_identity_t<Context>> args) { + typename ArgFormatter::iterator iter(out); + Context(iter, format_str, args).template format<ArgFormatter>(); + return iter; +} + +/** + \rst + Prints formatted data to the stream *os*. + + **Example**:: + + fmt::fprintf(cerr, "Don't %s!", "panic"); + \endrst + */ +template <typename S, typename... Args, typename Char = char_t<S>> +inline int fprintf(std::basic_ostream<Char>& os, const S& format_str, + const Args&... args) { + using context = basic_printf_context_t<Char>; + return vfprintf(os, to_string_view(format_str), + make_format_args<context>(args...)); +} +FMT_END_NAMESPACE + +#endif // FMT_PRINTF_H_ diff --git a/contrib/libs/fmt/include/fmt/ranges.h b/contrib/libs/fmt/include/fmt/ranges.h new file mode 100644 index 0000000000..632f04949c --- /dev/null +++ b/contrib/libs/fmt/include/fmt/ranges.h @@ -0,0 +1,396 @@ +// Formatting library for C++ - experimental range support +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. +// +// Copyright (c) 2018 - present, Remotion (Igor Schulz) +// All Rights Reserved +// {fmt} support for ranges, containers and types tuple interface. + +#ifndef FMT_RANGES_H_ +#define FMT_RANGES_H_ + +#include <initializer_list> +#include <type_traits> + +#include "format.h" + +// output only up to N items from the range. +#ifndef FMT_RANGE_OUTPUT_LENGTH_LIMIT +# define FMT_RANGE_OUTPUT_LENGTH_LIMIT 256 +#endif + +FMT_BEGIN_NAMESPACE + +template <typename Char> struct formatting_base { + template <typename ParseContext> + FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { + return ctx.begin(); + } +}; + +template <typename Char, typename Enable = void> +struct formatting_range : formatting_base<Char> { + static FMT_CONSTEXPR_DECL const size_t range_length_limit = + FMT_RANGE_OUTPUT_LENGTH_LIMIT; // output only up to N items from the + // range. + Char prefix; + Char delimiter; + Char postfix; + formatting_range() : prefix('{'), delimiter(','), postfix('}') {} + static FMT_CONSTEXPR_DECL const bool add_delimiter_spaces = true; + static FMT_CONSTEXPR_DECL const bool add_prepostfix_space = false; +}; + +template <typename Char, typename Enable = void> +struct formatting_tuple : formatting_base<Char> { + Char prefix; + Char delimiter; + Char postfix; + formatting_tuple() : prefix('('), delimiter(','), postfix(')') {} + static FMT_CONSTEXPR_DECL const bool add_delimiter_spaces = true; + static FMT_CONSTEXPR_DECL const bool add_prepostfix_space = false; +}; + +namespace detail { + +template <typename RangeT, typename OutputIterator> +OutputIterator copy(const RangeT& range, OutputIterator out) { + for (auto it = range.begin(), end = range.end(); it != end; ++it) + *out++ = *it; + return out; +} + +template <typename OutputIterator> +OutputIterator copy(const char* str, OutputIterator out) { + while (*str) *out++ = *str++; + return out; +} + +template <typename OutputIterator> +OutputIterator copy(char ch, OutputIterator out) { + *out++ = ch; + return out; +} + +/// Return true value if T has std::string interface, like std::string_view. +template <typename T> class is_like_std_string { + template <typename U> + static auto check(U* p) + -> decltype((void)p->find('a'), p->length(), (void)p->data(), int()); + template <typename> static void check(...); + + public: + static FMT_CONSTEXPR_DECL const bool value = + is_string<T>::value || !std::is_void<decltype(check<T>(nullptr))>::value; +}; + +template <typename Char> +struct is_like_std_string<fmt::basic_string_view<Char>> : std::true_type {}; + +template <typename... Ts> struct conditional_helper {}; + +template <typename T, typename _ = void> struct is_range_ : std::false_type {}; + +#if !FMT_MSC_VER || FMT_MSC_VER > 1800 +template <typename T> +struct is_range_< + T, conditional_t<false, + conditional_helper<decltype(std::declval<T>().begin()), + decltype(std::declval<T>().end())>, + void>> : std::true_type {}; +#endif + +/// tuple_size and tuple_element check. +template <typename T> class is_tuple_like_ { + template <typename U> + static auto check(U* p) -> decltype(std::tuple_size<U>::value, int()); + template <typename> static void check(...); + + public: + static FMT_CONSTEXPR_DECL const bool value = + !std::is_void<decltype(check<T>(nullptr))>::value; +}; + +// Check for integer_sequence +#if defined(__cpp_lib_integer_sequence) || FMT_MSC_VER >= 1900 +template <typename T, T... N> +using integer_sequence = std::integer_sequence<T, N...>; +template <size_t... N> using index_sequence = std::index_sequence<N...>; +template <size_t N> using make_index_sequence = std::make_index_sequence<N>; +#else +template <typename T, T... N> struct integer_sequence { + using value_type = T; + + static FMT_CONSTEXPR size_t size() { return sizeof...(N); } +}; + +template <size_t... N> using index_sequence = integer_sequence<size_t, N...>; + +template <typename T, size_t N, T... Ns> +struct make_integer_sequence : make_integer_sequence<T, N - 1, N - 1, Ns...> {}; +template <typename T, T... Ns> +struct make_integer_sequence<T, 0, Ns...> : integer_sequence<T, Ns...> {}; + +template <size_t N> +using make_index_sequence = make_integer_sequence<size_t, N>; +#endif + +template <class Tuple, class F, size_t... Is> +void for_each(index_sequence<Is...>, Tuple&& tup, F&& f) FMT_NOEXCEPT { + using std::get; + // using free function get<I>(T) now. + const int _[] = {0, ((void)f(get<Is>(tup)), 0)...}; + (void)_; // blocks warnings +} + +template <class T> +FMT_CONSTEXPR make_index_sequence<std::tuple_size<T>::value> get_indexes( + T const&) { + return {}; +} + +template <class Tuple, class F> void for_each(Tuple&& tup, F&& f) { + const auto indexes = get_indexes(tup); + for_each(indexes, std::forward<Tuple>(tup), std::forward<F>(f)); +} + +template <typename Range> +using value_type = remove_cvref_t<decltype(*std::declval<Range>().begin())>; + +template <typename Arg, FMT_ENABLE_IF(!is_like_std_string< + typename std::decay<Arg>::type>::value)> +FMT_CONSTEXPR const char* format_str_quoted(bool add_space, const Arg&) { + return add_space ? " {}" : "{}"; +} + +template <typename Arg, FMT_ENABLE_IF(is_like_std_string< + typename std::decay<Arg>::type>::value)> +FMT_CONSTEXPR const char* format_str_quoted(bool add_space, const Arg&) { + return add_space ? " \"{}\"" : "\"{}\""; +} + +FMT_CONSTEXPR const char* format_str_quoted(bool add_space, const char*) { + return add_space ? " \"{}\"" : "\"{}\""; +} +FMT_CONSTEXPR const wchar_t* format_str_quoted(bool add_space, const wchar_t*) { + return add_space ? L" \"{}\"" : L"\"{}\""; +} + +FMT_CONSTEXPR const char* format_str_quoted(bool add_space, const char) { + return add_space ? " '{}'" : "'{}'"; +} +FMT_CONSTEXPR const wchar_t* format_str_quoted(bool add_space, const wchar_t) { + return add_space ? L" '{}'" : L"'{}'"; +} +} // namespace detail + +template <typename T> struct is_tuple_like { + static FMT_CONSTEXPR_DECL const bool value = + detail::is_tuple_like_<T>::value && !detail::is_range_<T>::value; +}; + +template <typename TupleT, typename Char> +struct formatter<TupleT, Char, enable_if_t<fmt::is_tuple_like<TupleT>::value>> { + private: + // C++11 generic lambda for format() + template <typename FormatContext> struct format_each { + template <typename T> void operator()(const T& v) { + if (i > 0) { + if (formatting.add_prepostfix_space) { + *out++ = ' '; + } + out = detail::copy(formatting.delimiter, out); + } + out = format_to(out, + detail::format_str_quoted( + (formatting.add_delimiter_spaces && i > 0), v), + v); + ++i; + } + + formatting_tuple<Char>& formatting; + size_t& i; + typename std::add_lvalue_reference<decltype( + std::declval<FormatContext>().out())>::type out; + }; + + public: + formatting_tuple<Char> formatting; + + template <typename ParseContext> + FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { + return formatting.parse(ctx); + } + + template <typename FormatContext = format_context> + auto format(const TupleT& values, FormatContext& ctx) -> decltype(ctx.out()) { + auto out = ctx.out(); + size_t i = 0; + detail::copy(formatting.prefix, out); + + detail::for_each(values, format_each<FormatContext>{formatting, i, out}); + if (formatting.add_prepostfix_space) { + *out++ = ' '; + } + detail::copy(formatting.postfix, out); + + return ctx.out(); + } +}; + +template <typename T, typename Char> struct is_range { + static FMT_CONSTEXPR_DECL const bool value = + detail::is_range_<T>::value && !detail::is_like_std_string<T>::value && + !std::is_convertible<T, std::basic_string<Char>>::value && + !std::is_constructible<detail::std_string_view<Char>, T>::value; +}; + +template <typename T, typename Char> +struct formatter< + T, Char, + enable_if_t<fmt::is_range<T, Char>::value +// Workaround a bug in MSVC 2017 and earlier. +#if !FMT_MSC_VER || FMT_MSC_VER >= 1927 + && + (has_formatter<detail::value_type<T>, format_context>::value || + detail::has_fallback_formatter<detail::value_type<T>, + format_context>::value) +#endif + >> { + formatting_range<Char> formatting; + + template <typename ParseContext> + FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { + return formatting.parse(ctx); + } + + template <typename FormatContext> + typename FormatContext::iterator format(const T& values, FormatContext& ctx) { + auto out = detail::copy(formatting.prefix, ctx.out()); + size_t i = 0; + auto it = values.begin(); + auto end = values.end(); + for (; it != end; ++it) { + if (i > 0) { + if (formatting.add_prepostfix_space) *out++ = ' '; + out = detail::copy(formatting.delimiter, out); + } + out = format_to(out, + detail::format_str_quoted( + (formatting.add_delimiter_spaces && i > 0), *it), + *it); + if (++i > formatting.range_length_limit) { + out = format_to(out, " ... <other elements>"); + break; + } + } + if (formatting.add_prepostfix_space) *out++ = ' '; + return detail::copy(formatting.postfix, out); + } +}; + +template <typename Char, typename... T> struct tuple_arg_join : detail::view { + const std::tuple<T...>& tuple; + basic_string_view<Char> sep; + + tuple_arg_join(const std::tuple<T...>& t, basic_string_view<Char> s) + : tuple{t}, sep{s} {} +}; + +template <typename Char, typename... T> +struct formatter<tuple_arg_join<Char, T...>, Char> { + template <typename ParseContext> + FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { + return ctx.begin(); + } + + template <typename FormatContext> + typename FormatContext::iterator format( + const tuple_arg_join<Char, T...>& value, FormatContext& ctx) { + return format(value, ctx, detail::make_index_sequence<sizeof...(T)>{}); + } + + private: + template <typename FormatContext, size_t... N> + typename FormatContext::iterator format( + const tuple_arg_join<Char, T...>& value, FormatContext& ctx, + detail::index_sequence<N...>) { + return format_args(value, ctx, std::get<N>(value.tuple)...); + } + + template <typename FormatContext> + typename FormatContext::iterator format_args( + const tuple_arg_join<Char, T...>&, FormatContext& ctx) { + // NOTE: for compilers that support C++17, this empty function instantiation + // can be replaced with a constexpr branch in the variadic overload. + return ctx.out(); + } + + template <typename FormatContext, typename Arg, typename... Args> + typename FormatContext::iterator format_args( + const tuple_arg_join<Char, T...>& value, FormatContext& ctx, + const Arg& arg, const Args&... args) { + using base = formatter<typename std::decay<Arg>::type, Char>; + auto out = ctx.out(); + out = base{}.format(arg, ctx); + if (sizeof...(Args) > 0) { + out = std::copy(value.sep.begin(), value.sep.end(), out); + ctx.advance_to(out); + return format_args(value, ctx, args...); + } + return out; + } +}; + +/** + \rst + Returns an object that formats `tuple` with elements separated by `sep`. + + **Example**:: + + std::tuple<int, char> t = {1, 'a'}; + fmt::print("{}", fmt::join(t, ", ")); + // Output: "1, a" + \endrst + */ +template <typename... T> +FMT_CONSTEXPR tuple_arg_join<char, T...> join(const std::tuple<T...>& tuple, + string_view sep) { + return {tuple, sep}; +} + +template <typename... T> +FMT_CONSTEXPR tuple_arg_join<wchar_t, T...> join(const std::tuple<T...>& tuple, + wstring_view sep) { + return {tuple, sep}; +} + +/** + \rst + Returns an object that formats `initializer_list` with elements separated by + `sep`. + + **Example**:: + + fmt::print("{}", fmt::join({1, 2, 3}, ", ")); + // Output: "1, 2, 3" + \endrst + */ +template <typename T> +arg_join<const T*, const T*, char> join(std::initializer_list<T> list, + string_view sep) { + return join(std::begin(list), std::end(list), sep); +} + +template <typename T> +arg_join<const T*, const T*, wchar_t> join(std::initializer_list<T> list, + wstring_view sep) { + return join(std::begin(list), std::end(list), sep); +} + +FMT_END_NAMESPACE + +#endif // FMT_RANGES_H_ diff --git a/contrib/libs/fmt/src/format.cc b/contrib/libs/fmt/src/format.cc new file mode 100644 index 0000000000..6141d964a7 --- /dev/null +++ b/contrib/libs/fmt/src/format.cc @@ -0,0 +1,99 @@ +// Formatting library for C++ +// +// Copyright (c) 2012 - 2016, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#include "fmt/format-inl.h" + +FMT_BEGIN_NAMESPACE +namespace detail { + +template <typename T> +int format_float(char* buf, std::size_t size, const char* format, int precision, + T value) { +#ifdef FMT_FUZZ + if (precision > 100000) + throw std::runtime_error( + "fuzz mode - avoid large allocation inside snprintf"); +#endif + // Suppress the warning about nonliteral format string. + int (*snprintf_ptr)(char*, size_t, const char*, ...) = FMT_SNPRINTF; + return precision < 0 ? snprintf_ptr(buf, size, format, value) + : snprintf_ptr(buf, size, format, precision, value); +} + +template FMT_API dragonbox::decimal_fp<float> dragonbox::to_decimal(float x) + FMT_NOEXCEPT; +template FMT_API dragonbox::decimal_fp<double> dragonbox::to_decimal(double x) + FMT_NOEXCEPT; + +// DEPRECATED! This function exists for ABI compatibility. +template <typename Char> +typename basic_format_context<std::back_insert_iterator<buffer<Char>>, + Char>::iterator +vformat_to(buffer<Char>& buf, basic_string_view<Char> format_str, + basic_format_args<basic_format_context< + std::back_insert_iterator<buffer<type_identity_t<Char>>>, + type_identity_t<Char>>> + args) { + using iterator = std::back_insert_iterator<buffer<char>>; + using context = basic_format_context< + std::back_insert_iterator<buffer<type_identity_t<Char>>>, + type_identity_t<Char>>; + auto out = iterator(buf); + format_handler<iterator, Char, context> h(out, format_str, args, {}); + parse_format_string<false>(format_str, h); + return out; +} +template basic_format_context<std::back_insert_iterator<buffer<char>>, + char>::iterator +vformat_to(buffer<char>&, string_view, + basic_format_args<basic_format_context< + std::back_insert_iterator<buffer<type_identity_t<char>>>, + type_identity_t<char>>>); +} // namespace detail + +template struct FMT_INSTANTIATION_DEF_API detail::basic_data<void>; + +// Workaround a bug in MSVC2013 that prevents instantiation of format_float. +int (*instantiate_format_float)(double, int, detail::float_specs, + detail::buffer<char>&) = detail::format_float; + +#ifndef FMT_STATIC_THOUSANDS_SEPARATOR +template FMT_API detail::locale_ref::locale_ref(const std::locale& loc); +template FMT_API std::locale detail::locale_ref::get<std::locale>() const; +#endif + +// Explicit instantiations for char. + +template FMT_API std::string detail::grouping_impl<char>(locale_ref); +template FMT_API char detail::thousands_sep_impl(locale_ref); +template FMT_API char detail::decimal_point_impl(locale_ref); + +template FMT_API void detail::buffer<char>::append(const char*, const char*); + +template FMT_API void detail::vformat_to( + detail::buffer<char>&, string_view, + basic_format_args<FMT_BUFFER_CONTEXT(char)>, detail::locale_ref); + +template FMT_API int detail::snprintf_float(double, int, detail::float_specs, + detail::buffer<char>&); +template FMT_API int detail::snprintf_float(long double, int, + detail::float_specs, + detail::buffer<char>&); +template FMT_API int detail::format_float(double, int, detail::float_specs, + detail::buffer<char>&); +template FMT_API int detail::format_float(long double, int, detail::float_specs, + detail::buffer<char>&); + +// Explicit instantiations for wchar_t. + +template FMT_API std::string detail::grouping_impl<wchar_t>(locale_ref); +template FMT_API wchar_t detail::thousands_sep_impl(locale_ref); +template FMT_API wchar_t detail::decimal_point_impl(locale_ref); + +template FMT_API void detail::buffer<wchar_t>::append(const wchar_t*, + const wchar_t*); +FMT_END_NAMESPACE diff --git a/contrib/libs/fmt/src/os.cc b/contrib/libs/fmt/src/os.cc new file mode 100644 index 0000000000..6850024588 --- /dev/null +++ b/contrib/libs/fmt/src/os.cc @@ -0,0 +1,322 @@ +// Formatting library for C++ - optional OS-specific functionality +// +// Copyright (c) 2012 - 2016, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +// Disable bogus MSVC warnings. +#if !defined(_CRT_SECURE_NO_WARNINGS) && defined(_MSC_VER) +# define _CRT_SECURE_NO_WARNINGS +#endif + +#include "fmt/os.h" + +#include <climits> + +#if FMT_USE_FCNTL +# include <sys/stat.h> +# include <sys/types.h> + +# ifndef _WIN32 +# include <unistd.h> +# else +# ifndef WIN32_LEAN_AND_MEAN +# define WIN32_LEAN_AND_MEAN +# endif +# include <io.h> +# include <windows.h> + +# define O_CREAT _O_CREAT +# define O_TRUNC _O_TRUNC + +# ifndef S_IRUSR +# define S_IRUSR _S_IREAD +# endif + +# ifndef S_IWUSR +# define S_IWUSR _S_IWRITE +# endif + +# ifdef __MINGW32__ +# define _SH_DENYNO 0x40 +# endif +# endif // _WIN32 +#endif // FMT_USE_FCNTL + +#ifdef _WIN32 +# include <windows.h> +#endif + +#ifdef fileno +# undef fileno +#endif + +namespace { +#ifdef _WIN32 +// Return type of read and write functions. +using RWResult = int; + +// On Windows the count argument to read and write is unsigned, so convert +// it from size_t preventing integer overflow. +inline unsigned convert_rwcount(std::size_t count) { + return count <= UINT_MAX ? static_cast<unsigned>(count) : UINT_MAX; +} +#elif FMT_USE_FCNTL +// Return type of read and write functions. +using RWResult = ssize_t; + +inline std::size_t convert_rwcount(std::size_t count) { return count; } +#endif +} // namespace + +FMT_BEGIN_NAMESPACE + +#ifdef _WIN32 +detail::utf16_to_utf8::utf16_to_utf8(wstring_view s) { + if (int error_code = convert(s)) { + FMT_THROW(windows_error(error_code, + "cannot convert string from UTF-16 to UTF-8")); + } +} + +int detail::utf16_to_utf8::convert(wstring_view s) { + if (s.size() > INT_MAX) return ERROR_INVALID_PARAMETER; + int s_size = static_cast<int>(s.size()); + if (s_size == 0) { + // WideCharToMultiByte does not support zero length, handle separately. + buffer_.resize(1); + buffer_[0] = 0; + return 0; + } + + int length = WideCharToMultiByte(CP_UTF8, 0, s.data(), s_size, nullptr, 0, + nullptr, nullptr); + if (length == 0) return GetLastError(); + buffer_.resize(length + 1); + length = WideCharToMultiByte(CP_UTF8, 0, s.data(), s_size, &buffer_[0], + length, nullptr, nullptr); + if (length == 0) return GetLastError(); + buffer_[length] = 0; + return 0; +} + +void windows_error::init(int err_code, string_view format_str, + format_args args) { + error_code_ = err_code; + memory_buffer buffer; + detail::format_windows_error(buffer, err_code, vformat(format_str, args)); + std::runtime_error& base = *this; + base = std::runtime_error(to_string(buffer)); +} + +void detail::format_windows_error(detail::buffer<char>& out, int error_code, + string_view message) FMT_NOEXCEPT { + FMT_TRY { + wmemory_buffer buf; + buf.resize(inline_buffer_size); + for (;;) { + wchar_t* system_message = &buf[0]; + int result = FormatMessageW( + FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, nullptr, + error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), system_message, + static_cast<uint32_t>(buf.size()), nullptr); + if (result != 0) { + utf16_to_utf8 utf8_message; + if (utf8_message.convert(system_message) == ERROR_SUCCESS) { + format_to(buffer_appender<char>(out), "{}: {}", message, + utf8_message); + return; + } + break; + } + if (GetLastError() != ERROR_INSUFFICIENT_BUFFER) + break; // Can't get error message, report error code instead. + buf.resize(buf.size() * 2); + } + } + FMT_CATCH(...) {} + format_error_code(out, error_code, message); +} + +void report_windows_error(int error_code, + fmt::string_view message) FMT_NOEXCEPT { + report_error(detail::format_windows_error, error_code, message); +} +#endif // _WIN32 + +buffered_file::~buffered_file() FMT_NOEXCEPT { + if (file_ && FMT_SYSTEM(fclose(file_)) != 0) + report_system_error(errno, "cannot close file"); +} + +buffered_file::buffered_file(cstring_view filename, cstring_view mode) { + FMT_RETRY_VAL(file_, FMT_SYSTEM(fopen(filename.c_str(), mode.c_str())), + nullptr); + if (!file_) + FMT_THROW(system_error(errno, "cannot open file {}", filename.c_str())); +} + +void buffered_file::close() { + if (!file_) return; + int result = FMT_SYSTEM(fclose(file_)); + file_ = nullptr; + if (result != 0) FMT_THROW(system_error(errno, "cannot close file")); +} + +// A macro used to prevent expansion of fileno on broken versions of MinGW. +#define FMT_ARGS + +int buffered_file::fileno() const { + int fd = FMT_POSIX_CALL(fileno FMT_ARGS(file_)); + if (fd == -1) FMT_THROW(system_error(errno, "cannot get file descriptor")); + return fd; +} + +#if FMT_USE_FCNTL +file::file(cstring_view path, int oflag) { + int mode = S_IRUSR | S_IWUSR; +# if defined(_WIN32) && !defined(__MINGW32__) + fd_ = -1; + FMT_POSIX_CALL(sopen_s(&fd_, path.c_str(), oflag, _SH_DENYNO, mode)); +# else + FMT_RETRY(fd_, FMT_POSIX_CALL(open(path.c_str(), oflag, mode))); +# endif + if (fd_ == -1) + FMT_THROW(system_error(errno, "cannot open file {}", path.c_str())); +} + +file::~file() FMT_NOEXCEPT { + // Don't retry close in case of EINTR! + // See http://linux.derkeiler.com/Mailing-Lists/Kernel/2005-09/3000.html + if (fd_ != -1 && FMT_POSIX_CALL(close(fd_)) != 0) + report_system_error(errno, "cannot close file"); +} + +void file::close() { + if (fd_ == -1) return; + // Don't retry close in case of EINTR! + // See http://linux.derkeiler.com/Mailing-Lists/Kernel/2005-09/3000.html + int result = FMT_POSIX_CALL(close(fd_)); + fd_ = -1; + if (result != 0) FMT_THROW(system_error(errno, "cannot close file")); +} + +long long file::size() const { +# ifdef _WIN32 + // Use GetFileSize instead of GetFileSizeEx for the case when _WIN32_WINNT + // is less than 0x0500 as is the case with some default MinGW builds. + // Both functions support large file sizes. + DWORD size_upper = 0; + HANDLE handle = reinterpret_cast<HANDLE>(_get_osfhandle(fd_)); + DWORD size_lower = FMT_SYSTEM(GetFileSize(handle, &size_upper)); + if (size_lower == INVALID_FILE_SIZE) { + DWORD error = GetLastError(); + if (error != NO_ERROR) + FMT_THROW(windows_error(GetLastError(), "cannot get file size")); + } + unsigned long long long_size = size_upper; + return (long_size << sizeof(DWORD) * CHAR_BIT) | size_lower; +# else + using Stat = struct stat; + Stat file_stat = Stat(); + if (FMT_POSIX_CALL(fstat(fd_, &file_stat)) == -1) + FMT_THROW(system_error(errno, "cannot get file attributes")); + static_assert(sizeof(long long) >= sizeof(file_stat.st_size), + "return type of file::size is not large enough"); + return file_stat.st_size; +# endif +} + +std::size_t file::read(void* buffer, std::size_t count) { + RWResult result = 0; + FMT_RETRY(result, FMT_POSIX_CALL(read(fd_, buffer, convert_rwcount(count)))); + if (result < 0) FMT_THROW(system_error(errno, "cannot read from file")); + return detail::to_unsigned(result); +} + +std::size_t file::write(const void* buffer, std::size_t count) { + RWResult result = 0; + FMT_RETRY(result, FMT_POSIX_CALL(write(fd_, buffer, convert_rwcount(count)))); + if (result < 0) FMT_THROW(system_error(errno, "cannot write to file")); + return detail::to_unsigned(result); +} + +file file::dup(int fd) { + // Don't retry as dup doesn't return EINTR. + // http://pubs.opengroup.org/onlinepubs/009695399/functions/dup.html + int new_fd = FMT_POSIX_CALL(dup(fd)); + if (new_fd == -1) + FMT_THROW(system_error(errno, "cannot duplicate file descriptor {}", fd)); + return file(new_fd); +} + +void file::dup2(int fd) { + int result = 0; + FMT_RETRY(result, FMT_POSIX_CALL(dup2(fd_, fd))); + if (result == -1) { + FMT_THROW(system_error(errno, "cannot duplicate file descriptor {} to {}", + fd_, fd)); + } +} + +void file::dup2(int fd, error_code& ec) FMT_NOEXCEPT { + int result = 0; + FMT_RETRY(result, FMT_POSIX_CALL(dup2(fd_, fd))); + if (result == -1) ec = error_code(errno); +} + +void file::pipe(file& read_end, file& write_end) { + // Close the descriptors first to make sure that assignments don't throw + // and there are no leaks. + read_end.close(); + write_end.close(); + int fds[2] = {}; +# ifdef _WIN32 + // Make the default pipe capacity same as on Linux 2.6.11+. + enum { DEFAULT_CAPACITY = 65536 }; + int result = FMT_POSIX_CALL(pipe(fds, DEFAULT_CAPACITY, _O_BINARY)); +# else + // Don't retry as the pipe function doesn't return EINTR. + // http://pubs.opengroup.org/onlinepubs/009696799/functions/pipe.html + int result = FMT_POSIX_CALL(pipe(fds)); +# endif + if (result != 0) FMT_THROW(system_error(errno, "cannot create pipe")); + // The following assignments don't throw because read_fd and write_fd + // are closed. + read_end = file(fds[0]); + write_end = file(fds[1]); +} + +buffered_file file::fdopen(const char* mode) { +// Don't retry as fdopen doesn't return EINTR. +# if defined(__MINGW32__) && defined(_POSIX_) + FILE* f = ::fdopen(fd_, mode); +# else + FILE* f = FMT_POSIX_CALL(fdopen(fd_, mode)); +# endif + if (!f) + FMT_THROW( + system_error(errno, "cannot associate stream with file descriptor")); + buffered_file bf(f); + fd_ = -1; + return bf; +} + +long getpagesize() { +# ifdef _WIN32 + SYSTEM_INFO si; + GetSystemInfo(&si); + return si.dwPageSize; +# else + long size = FMT_POSIX_CALL(sysconf(_SC_PAGESIZE)); + if (size < 0) FMT_THROW(system_error(errno, "cannot get memory page size")); + return size; +# endif +} + +FMT_API void ostream::grow(size_t) { + if (this->size() == this->capacity()) flush(); +} +#endif // FMT_USE_FCNTL +FMT_END_NAMESPACE diff --git a/contrib/libs/fmt/test/assert-test.cc b/contrib/libs/fmt/test/assert-test.cc new file mode 100644 index 0000000000..73f622e56b --- /dev/null +++ b/contrib/libs/fmt/test/assert-test.cc @@ -0,0 +1,32 @@ +// Formatting library for C++ - FMT_ASSERT test +// +// It is a separate test to minimize the number of EXPECT_DEBUG_DEATH checks +// which are slow on some platforms. In other tests FMT_ASSERT is made to throw +// an exception which is much faster and easier to check. +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#include "fmt/core.h" +#include <gtest/gtest.h> + +TEST(AssertTest, Fail) { +#if GTEST_HAS_DEATH_TEST + EXPECT_DEBUG_DEATH(FMT_ASSERT(false, "don't panic!"), "don't panic!"); +#else + fmt::print("warning: death tests are not supported\n"); +#endif +} + +bool test_condition = false; + +TEST(AssertTest, DanglingElse) { + bool executed_else = false; + if (test_condition) + FMT_ASSERT(true, ""); + else + executed_else = true; + EXPECT_TRUE(executed_else); +} diff --git a/contrib/libs/fmt/test/assert-test/ya.make b/contrib/libs/fmt/test/assert-test/ya.make new file mode 100644 index 0000000000..22d19ae00a --- /dev/null +++ b/contrib/libs/fmt/test/assert-test/ya.make @@ -0,0 +1,37 @@ +# Generated by devtools/yamaker. + +GTEST() + +WITHOUT_LICENSE_TEXTS() + +OWNER( + orivej + g:cpp-contrib +) + +LICENSE(MIT) + +PEERDIR( + contrib/libs/fmt + contrib/libs/fmt/test +) + +NO_COMPILER_WARNINGS() + +NO_UTIL() + +CFLAGS( + -DFMT_LOCALE + -DFMT_SHARED + -DGTEST_HAS_STD_WSTRING=1 + -DGTEST_LANG_CXX11=0 + -D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING=1 +) + +SRCDIR(contrib/libs/fmt/test) + +SRCS( + assert-test.cc +) + +END() diff --git a/contrib/libs/fmt/test/chrono-test.cc b/contrib/libs/fmt/test/chrono-test.cc new file mode 100644 index 0000000000..fa383c1446 --- /dev/null +++ b/contrib/libs/fmt/test/chrono-test.cc @@ -0,0 +1,398 @@ +// Formatting library for C++ - time formatting tests +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#ifdef WIN32 +# define _CRT_SECURE_NO_WARNINGS +#endif + +#include "fmt/chrono.h" + +#include <iomanip> + +#include "gtest-extra.h" + +std::tm make_tm() { + auto time = std::tm(); + time.tm_mday = 1; + return time; +} + +std::tm make_hour(int h) { + auto time = make_tm(); + time.tm_hour = h; + return time; +} + +std::tm make_minute(int m) { + auto time = make_tm(); + time.tm_min = m; + return time; +} + +std::tm make_second(int s) { + auto time = make_tm(); + time.tm_sec = s; + return time; +} + +std::string format_tm(const std::tm& time, const char* spec, + const std::locale& loc) { + auto& facet = std::use_facet<std::time_put<char>>(loc); + std::ostringstream os; + os.imbue(loc); + facet.put(os, os, ' ', &time, spec, spec + std::strlen(spec)); + return os.str(); +} + +TEST(TimeTest, Format) { + std::tm tm = std::tm(); + tm.tm_year = 116; + tm.tm_mon = 3; + tm.tm_mday = 25; + EXPECT_EQ("The date is 2016-04-25.", + fmt::format("The date is {:%Y-%m-%d}.", tm)); +} + +TEST(TimeTest, GrowBuffer) { + std::string s = "{:"; + for (int i = 0; i < 30; ++i) s += "%c"; + s += "}\n"; + std::time_t t = std::time(nullptr); + fmt::format(s, *std::localtime(&t)); +} + +TEST(TimeTest, FormatToEmptyContainer) { + std::string s; + auto time = std::tm(); + time.tm_sec = 42; + fmt::format_to(std::back_inserter(s), "{:%S}", time); + EXPECT_EQ(s, "42"); +} + +TEST(TimeTest, EmptyResult) { EXPECT_EQ("", fmt::format("{}", std::tm())); } + +static bool EqualTime(const std::tm& lhs, const std::tm& rhs) { + return lhs.tm_sec == rhs.tm_sec && lhs.tm_min == rhs.tm_min && + lhs.tm_hour == rhs.tm_hour && lhs.tm_mday == rhs.tm_mday && + lhs.tm_mon == rhs.tm_mon && lhs.tm_year == rhs.tm_year && + lhs.tm_wday == rhs.tm_wday && lhs.tm_yday == rhs.tm_yday && + lhs.tm_isdst == rhs.tm_isdst; +} + +TEST(TimeTest, LocalTime) { + std::time_t t = std::time(nullptr); + std::tm tm = *std::localtime(&t); + EXPECT_TRUE(EqualTime(tm, fmt::localtime(t))); +} + +TEST(TimeTest, GMTime) { + std::time_t t = std::time(nullptr); + std::tm tm = *std::gmtime(&t); + EXPECT_TRUE(EqualTime(tm, fmt::gmtime(t))); +} + +TEST(TimeTest, TimePoint) { + std::chrono::system_clock::time_point point = std::chrono::system_clock::now(); + + std::time_t t = std::chrono::system_clock::to_time_t(point); + std::tm tm = *std::localtime(&t); + char strftime_output[256]; + std::strftime(strftime_output, sizeof(strftime_output), "It is %Y-%m-%d %H:%M:%S", &tm); + + EXPECT_EQ(strftime_output, fmt::format("It is {:%Y-%m-%d %H:%M:%S}", point)); +} + +#define EXPECT_TIME(spec, time, duration) \ + { \ + std::locale loc("ja_JP.utf8"); \ + EXPECT_EQ(format_tm(time, spec, loc), \ + fmt::format(loc, "{:" spec "}", duration)); \ + } + +#ifndef FMT_STATIC_THOUSANDS_SEPARATOR + +TEST(ChronoTest, FormatDefault) { + EXPECT_EQ("42s", fmt::format("{}", std::chrono::seconds(42))); + EXPECT_EQ("42as", + fmt::format("{}", std::chrono::duration<int, std::atto>(42))); + EXPECT_EQ("42fs", + fmt::format("{}", std::chrono::duration<int, std::femto>(42))); + EXPECT_EQ("42ps", + fmt::format("{}", std::chrono::duration<int, std::pico>(42))); + EXPECT_EQ("42ns", fmt::format("{}", std::chrono::nanoseconds(42))); + EXPECT_EQ("42”s", fmt::format("{}", std::chrono::microseconds(42))); + EXPECT_EQ("42ms", fmt::format("{}", std::chrono::milliseconds(42))); + EXPECT_EQ("42cs", + fmt::format("{}", std::chrono::duration<int, std::centi>(42))); + EXPECT_EQ("42ds", + fmt::format("{}", std::chrono::duration<int, std::deci>(42))); + EXPECT_EQ("42s", fmt::format("{}", std::chrono::seconds(42))); + EXPECT_EQ("42das", + fmt::format("{}", std::chrono::duration<int, std::deca>(42))); + EXPECT_EQ("42hs", + fmt::format("{}", std::chrono::duration<int, std::hecto>(42))); + EXPECT_EQ("42ks", + fmt::format("{}", std::chrono::duration<int, std::kilo>(42))); + EXPECT_EQ("42Ms", + fmt::format("{}", std::chrono::duration<int, std::mega>(42))); + EXPECT_EQ("42Gs", + fmt::format("{}", std::chrono::duration<int, std::giga>(42))); + EXPECT_EQ("42Ts", + fmt::format("{}", std::chrono::duration<int, std::tera>(42))); + EXPECT_EQ("42Ps", + fmt::format("{}", std::chrono::duration<int, std::peta>(42))); + EXPECT_EQ("42Es", + fmt::format("{}", std::chrono::duration<int, std::exa>(42))); + EXPECT_EQ("42m", fmt::format("{}", std::chrono::minutes(42))); + EXPECT_EQ("42h", fmt::format("{}", std::chrono::hours(42))); + EXPECT_EQ( + "42[15]s", + fmt::format("{}", std::chrono::duration<int, std::ratio<15, 1>>(42))); + EXPECT_EQ( + "42[15/4]s", + fmt::format("{}", std::chrono::duration<int, std::ratio<15, 4>>(42))); +} + +TEST(ChronoTest, FormatWide) { + EXPECT_EQ(L"42s", fmt::format(L"{}", std::chrono::seconds(42))); + EXPECT_EQ(L"42as", + fmt::format(L"{}", std::chrono::duration<int, std::atto>(42))); + EXPECT_EQ(L"42fs", + fmt::format(L"{}", std::chrono::duration<int, std::femto>(42))); + EXPECT_EQ(L"42ps", + fmt::format(L"{}", std::chrono::duration<int, std::pico>(42))); + EXPECT_EQ(L"42ns", fmt::format(L"{}", std::chrono::nanoseconds(42))); + EXPECT_EQ(L"42\u00B5s", fmt::format(L"{}", std::chrono::microseconds(42))); + EXPECT_EQ(L"42ms", fmt::format(L"{}", std::chrono::milliseconds(42))); + EXPECT_EQ(L"42cs", + fmt::format(L"{}", std::chrono::duration<int, std::centi>(42))); + EXPECT_EQ(L"42ds", + fmt::format(L"{}", std::chrono::duration<int, std::deci>(42))); + EXPECT_EQ(L"42s", fmt::format(L"{}", std::chrono::seconds(42))); + EXPECT_EQ(L"42das", + fmt::format(L"{}", std::chrono::duration<int, std::deca>(42))); + EXPECT_EQ(L"42hs", + fmt::format(L"{}", std::chrono::duration<int, std::hecto>(42))); + EXPECT_EQ(L"42ks", + fmt::format(L"{}", std::chrono::duration<int, std::kilo>(42))); + EXPECT_EQ(L"42Ms", + fmt::format(L"{}", std::chrono::duration<int, std::mega>(42))); + EXPECT_EQ(L"42Gs", + fmt::format(L"{}", std::chrono::duration<int, std::giga>(42))); + EXPECT_EQ(L"42Ts", + fmt::format(L"{}", std::chrono::duration<int, std::tera>(42))); + EXPECT_EQ(L"42Ps", + fmt::format(L"{}", std::chrono::duration<int, std::peta>(42))); + EXPECT_EQ(L"42Es", + fmt::format(L"{}", std::chrono::duration<int, std::exa>(42))); + EXPECT_EQ(L"42m", fmt::format(L"{}", std::chrono::minutes(42))); + EXPECT_EQ(L"42h", fmt::format(L"{}", std::chrono::hours(42))); + EXPECT_EQ( + L"42[15]s", + fmt::format(L"{}", std::chrono::duration<int, std::ratio<15, 1>>(42))); + EXPECT_EQ( + L"42[15/4]s", + fmt::format(L"{}", std::chrono::duration<int, std::ratio<15, 4>>(42))); +} + +TEST(ChronoTest, Align) { + auto s = std::chrono::seconds(42); + EXPECT_EQ("42s ", fmt::format("{:5}", s)); + EXPECT_EQ("42s ", fmt::format("{:{}}", s, 5)); + EXPECT_EQ(" 42s", fmt::format("{:>5}", s)); + EXPECT_EQ("**42s**", fmt::format("{:*^7}", s)); + EXPECT_EQ("03:25:45 ", + fmt::format("{:12%H:%M:%S}", std::chrono::seconds(12345))); + EXPECT_EQ(" 03:25:45", + fmt::format("{:>12%H:%M:%S}", std::chrono::seconds(12345))); + EXPECT_EQ("~~03:25:45~~", + fmt::format("{:~^12%H:%M:%S}", std::chrono::seconds(12345))); + EXPECT_EQ("03:25:45 ", + fmt::format("{:{}%H:%M:%S}", std::chrono::seconds(12345), 12)); +} + +TEST(ChronoTest, FormatSpecs) { + EXPECT_EQ("%", fmt::format("{:%%}", std::chrono::seconds(0))); + EXPECT_EQ("\n", fmt::format("{:%n}", std::chrono::seconds(0))); + EXPECT_EQ("\t", fmt::format("{:%t}", std::chrono::seconds(0))); + EXPECT_EQ("00", fmt::format("{:%S}", std::chrono::seconds(0))); + EXPECT_EQ("00", fmt::format("{:%S}", std::chrono::seconds(60))); + EXPECT_EQ("42", fmt::format("{:%S}", std::chrono::seconds(42))); + EXPECT_EQ("01.234", fmt::format("{:%S}", std::chrono::milliseconds(1234))); + EXPECT_EQ("00", fmt::format("{:%M}", std::chrono::minutes(0))); + EXPECT_EQ("00", fmt::format("{:%M}", std::chrono::minutes(60))); + EXPECT_EQ("42", fmt::format("{:%M}", std::chrono::minutes(42))); + EXPECT_EQ("01", fmt::format("{:%M}", std::chrono::seconds(61))); + EXPECT_EQ("00", fmt::format("{:%H}", std::chrono::hours(0))); + EXPECT_EQ("00", fmt::format("{:%H}", std::chrono::hours(24))); + EXPECT_EQ("14", fmt::format("{:%H}", std::chrono::hours(14))); + EXPECT_EQ("01", fmt::format("{:%H}", std::chrono::minutes(61))); + EXPECT_EQ("12", fmt::format("{:%I}", std::chrono::hours(0))); + EXPECT_EQ("12", fmt::format("{:%I}", std::chrono::hours(12))); + EXPECT_EQ("12", fmt::format("{:%I}", std::chrono::hours(24))); + EXPECT_EQ("04", fmt::format("{:%I}", std::chrono::hours(4))); + EXPECT_EQ("02", fmt::format("{:%I}", std::chrono::hours(14))); + EXPECT_EQ("03:25:45", + fmt::format("{:%H:%M:%S}", std::chrono::seconds(12345))); + EXPECT_EQ("03:25", fmt::format("{:%R}", std::chrono::seconds(12345))); + EXPECT_EQ("03:25:45", fmt::format("{:%T}", std::chrono::seconds(12345))); + EXPECT_EQ("12345", fmt::format("{:%Q}", std::chrono::seconds(12345))); + EXPECT_EQ("s", fmt::format("{:%q}", std::chrono::seconds(12345))); +} + +TEST(ChronoTest, InvalidSpecs) { + auto sec = std::chrono::seconds(0); + EXPECT_THROW_MSG(fmt::format("{:%a}", sec), fmt::format_error, "no date"); + EXPECT_THROW_MSG(fmt::format("{:%A}", sec), fmt::format_error, "no date"); + EXPECT_THROW_MSG(fmt::format("{:%c}", sec), fmt::format_error, "no date"); + EXPECT_THROW_MSG(fmt::format("{:%x}", sec), fmt::format_error, "no date"); + EXPECT_THROW_MSG(fmt::format("{:%Ex}", sec), fmt::format_error, "no date"); + EXPECT_THROW_MSG(fmt::format("{:%X}", sec), fmt::format_error, "no date"); + EXPECT_THROW_MSG(fmt::format("{:%EX}", sec), fmt::format_error, "no date"); + EXPECT_THROW_MSG(fmt::format("{:%D}", sec), fmt::format_error, "no date"); + EXPECT_THROW_MSG(fmt::format("{:%F}", sec), fmt::format_error, "no date"); + EXPECT_THROW_MSG(fmt::format("{:%Ec}", sec), fmt::format_error, "no date"); + EXPECT_THROW_MSG(fmt::format("{:%w}", sec), fmt::format_error, "no date"); + EXPECT_THROW_MSG(fmt::format("{:%u}", sec), fmt::format_error, "no date"); + EXPECT_THROW_MSG(fmt::format("{:%b}", sec), fmt::format_error, "no date"); + EXPECT_THROW_MSG(fmt::format("{:%B}", sec), fmt::format_error, "no date"); + EXPECT_THROW_MSG(fmt::format("{:%z}", sec), fmt::format_error, "no date"); + EXPECT_THROW_MSG(fmt::format("{:%Z}", sec), fmt::format_error, "no date"); + EXPECT_THROW_MSG(fmt::format("{:%Eq}", sec), fmt::format_error, + "invalid format"); + EXPECT_THROW_MSG(fmt::format("{:%Oq}", sec), fmt::format_error, + "invalid format"); +} + +TEST(ChronoTest, Locale) { + const char* loc_name = "ja_JP.utf8"; + bool has_locale = false; + std::locale loc; + try { + loc = std::locale(loc_name); + has_locale = true; + } catch (const std::runtime_error&) { + } + if (!has_locale) { + fmt::print("{} locale is missing.\n", loc_name); + return; + } + EXPECT_TIME("%OH", make_hour(14), std::chrono::hours(14)); + EXPECT_TIME("%OI", make_hour(14), std::chrono::hours(14)); + EXPECT_TIME("%OM", make_minute(42), std::chrono::minutes(42)); + EXPECT_TIME("%OS", make_second(42), std::chrono::seconds(42)); + auto time = make_tm(); + time.tm_hour = 3; + time.tm_min = 25; + time.tm_sec = 45; + auto sec = std::chrono::seconds(12345); + EXPECT_TIME("%r", time, sec); + EXPECT_TIME("%p", time, sec); +} + +typedef std::chrono::duration<double, std::milli> dms; + +TEST(ChronoTest, FormatDefaultFP) { + typedef std::chrono::duration<float> fs; + EXPECT_EQ("1.234s", fmt::format("{}", fs(1.234))); + typedef std::chrono::duration<float, std::milli> fms; + EXPECT_EQ("1.234ms", fmt::format("{}", fms(1.234))); + typedef std::chrono::duration<double> ds; + EXPECT_EQ("1.234s", fmt::format("{}", ds(1.234))); + EXPECT_EQ("1.234ms", fmt::format("{}", dms(1.234))); +} + +TEST(ChronoTest, FormatPrecision) { + EXPECT_THROW_MSG(fmt::format("{:.2}", std::chrono::seconds(42)), + fmt::format_error, + "precision not allowed for this argument type"); + EXPECT_EQ("1.2ms", fmt::format("{:.1}", dms(1.234))); + EXPECT_EQ("1.23ms", fmt::format("{:.{}}", dms(1.234), 2)); +} + +TEST(ChronoTest, FormatFullSpecs) { + EXPECT_EQ("1.2ms ", fmt::format("{:6.1}", dms(1.234))); + EXPECT_EQ(" 1.23ms", fmt::format("{:>8.{}}", dms(1.234), 2)); + EXPECT_EQ(" 1.2ms ", fmt::format("{:^{}.{}}", dms(1.234), 7, 1)); + EXPECT_EQ(" 1.23ms ", fmt::format("{0:^{2}.{1}}", dms(1.234), 2, 8)); + EXPECT_EQ("=1.234ms=", fmt::format("{:=^{}.{}}", dms(1.234), 9, 3)); + EXPECT_EQ("*1.2340ms*", fmt::format("{:*^10.4}", dms(1.234))); +} + +TEST(ChronoTest, FormatSimpleQq) { + typedef std::chrono::duration<float> fs; + EXPECT_EQ("1.234 s", fmt::format("{:%Q %q}", fs(1.234))); + typedef std::chrono::duration<float, std::milli> fms; + EXPECT_EQ("1.234 ms", fmt::format("{:%Q %q}", fms(1.234))); + typedef std::chrono::duration<double> ds; + EXPECT_EQ("1.234 s", fmt::format("{:%Q %q}", ds(1.234))); + EXPECT_EQ("1.234 ms", fmt::format("{:%Q %q}", dms(1.234))); +} + +TEST(ChronoTest, FormatPrecisionQq) { + EXPECT_THROW_MSG(fmt::format("{:.2%Q %q}", std::chrono::seconds(42)), + fmt::format_error, + "precision not allowed for this argument type"); + EXPECT_EQ("1.2 ms", fmt::format("{:.1%Q %q}", dms(1.234))); + EXPECT_EQ("1.23 ms", fmt::format("{:.{}%Q %q}", dms(1.234), 2)); +} + +TEST(ChronoTest, FormatFullSpecsQq) { + EXPECT_EQ("1.2 ms ", fmt::format("{:7.1%Q %q}", dms(1.234))); + EXPECT_EQ(" 1.23 ms", fmt::format("{:>8.{}%Q %q}", dms(1.234), 2)); + EXPECT_EQ(" 1.2 ms ", fmt::format("{:^{}.{}%Q %q}", dms(1.234), 8, 1)); + EXPECT_EQ(" 1.23 ms ", fmt::format("{0:^{2}.{1}%Q %q}", dms(1.234), 2, 9)); + EXPECT_EQ("=1.234 ms=", fmt::format("{:=^{}.{}%Q %q}", dms(1.234), 10, 3)); + EXPECT_EQ("*1.2340 ms*", fmt::format("{:*^11.4%Q %q}", dms(1.234))); +} + +TEST(ChronoTest, InvalidWidthId) { + EXPECT_THROW(fmt::format("{:{o}", std::chrono::seconds(0)), + fmt::format_error); +} + +TEST(ChronoTest, InvalidColons) { + EXPECT_THROW(fmt::format("{0}=:{0::", std::chrono::seconds(0)), + fmt::format_error); +} + +TEST(ChronoTest, NegativeDurations) { + EXPECT_EQ("-12345", fmt::format("{:%Q}", std::chrono::seconds(-12345))); + EXPECT_EQ("-03:25:45", + fmt::format("{:%H:%M:%S}", std::chrono::seconds(-12345))); + EXPECT_EQ("-00:01", + fmt::format("{:%M:%S}", std::chrono::duration<double>(-1))); + EXPECT_EQ("s", fmt::format("{:%q}", std::chrono::seconds(-12345))); + EXPECT_EQ("-00.127", + fmt::format("{:%S}", + std::chrono::duration<signed char, std::milli>{-127})); + auto min = std::numeric_limits<int>::min(); + EXPECT_EQ(fmt::format("{}", min), + fmt::format("{:%Q}", std::chrono::duration<int>(min))); +} + +TEST(ChronoTest, SpecialDurations) { + EXPECT_EQ( + "40.", + fmt::format("{:%S}", std::chrono::duration<double>(1e20)).substr(0, 3)); + auto nan = std::numeric_limits<double>::quiet_NaN(); + EXPECT_EQ( + "nan nan nan nan nan:nan nan", + fmt::format("{:%I %H %M %S %R %r}", std::chrono::duration<double>(nan))); + fmt::format("{:%S}", + std::chrono::duration<float, std::atto>(1.79400457e+31f)); + EXPECT_EQ(fmt::format("{}", std::chrono::duration<float, std::exa>(1)), + "1Es"); + EXPECT_EQ(fmt::format("{}", std::chrono::duration<float, std::atto>(1)), + "1as"); + EXPECT_EQ(fmt::format("{:%R}", std::chrono::duration<char, std::mega>{2}), + "03:33"); + EXPECT_EQ(fmt::format("{:%T}", std::chrono::duration<char, std::mega>{2}), + "03:33:20"); +} + +#endif // FMT_STATIC_THOUSANDS_SEPARATOR diff --git a/contrib/libs/fmt/test/chrono-test/ya.make b/contrib/libs/fmt/test/chrono-test/ya.make new file mode 100644 index 0000000000..7982d65069 --- /dev/null +++ b/contrib/libs/fmt/test/chrono-test/ya.make @@ -0,0 +1,37 @@ +# Generated by devtools/yamaker. + +GTEST() + +WITHOUT_LICENSE_TEXTS() + +OWNER( + orivej + g:cpp-contrib +) + +LICENSE(MIT) + +PEERDIR( + contrib/libs/fmt + contrib/libs/fmt/test +) + +NO_COMPILER_WARNINGS() + +NO_UTIL() + +CFLAGS( + -DFMT_LOCALE + -DFMT_SHARED + -DGTEST_HAS_STD_WSTRING=1 + -DGTEST_LANG_CXX11=0 + -D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING=1 +) + +SRCDIR(contrib/libs/fmt/test) + +SRCS( + chrono-test.cc +) + +END() diff --git a/contrib/libs/fmt/test/color-test.cc b/contrib/libs/fmt/test/color-test.cc new file mode 100644 index 0000000000..3073808541 --- /dev/null +++ b/contrib/libs/fmt/test/color-test.cc @@ -0,0 +1,99 @@ +// Formatting library for C++ - color tests +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#include "fmt/color.h" + +#include <iterator> +#include <string> +#include <utility> + +#include "gtest-extra.h" + +TEST(ColorsTest, ColorsPrint) { + EXPECT_WRITE(stdout, fmt::print(fg(fmt::rgb(255, 20, 30)), "rgb(255,20,30)"), + "\x1b[38;2;255;020;030mrgb(255,20,30)\x1b[0m"); + EXPECT_WRITE(stdout, fmt::print(fg(fmt::color::blue), "blue"), + "\x1b[38;2;000;000;255mblue\x1b[0m"); + EXPECT_WRITE( + stdout, + fmt::print(fg(fmt::color::blue) | bg(fmt::color::red), "two color"), + "\x1b[38;2;000;000;255m\x1b[48;2;255;000;000mtwo color\x1b[0m"); + EXPECT_WRITE(stdout, fmt::print(fmt::emphasis::bold, "bold"), + "\x1b[1mbold\x1b[0m"); + EXPECT_WRITE(stdout, fmt::print(fmt::emphasis::italic, "italic"), + "\x1b[3mitalic\x1b[0m"); + EXPECT_WRITE(stdout, fmt::print(fmt::emphasis::underline, "underline"), + "\x1b[4munderline\x1b[0m"); + EXPECT_WRITE(stdout, + fmt::print(fmt::emphasis::strikethrough, "strikethrough"), + "\x1b[9mstrikethrough\x1b[0m"); + EXPECT_WRITE( + stdout, + fmt::print(fg(fmt::color::blue) | fmt::emphasis::bold, "blue/bold"), + "\x1b[1m\x1b[38;2;000;000;255mblue/bold\x1b[0m"); + EXPECT_WRITE(stderr, fmt::print(stderr, fmt::emphasis::bold, "bold error"), + "\x1b[1mbold error\x1b[0m"); + EXPECT_WRITE(stderr, fmt::print(stderr, fg(fmt::color::blue), "blue log"), + "\x1b[38;2;000;000;255mblue log\x1b[0m"); + EXPECT_WRITE(stdout, fmt::print(fmt::text_style(), "hi"), "hi"); + EXPECT_WRITE(stdout, fmt::print(fg(fmt::terminal_color::red), "tred"), + "\x1b[31mtred\x1b[0m"); + EXPECT_WRITE(stdout, fmt::print(bg(fmt::terminal_color::cyan), "tcyan"), + "\x1b[46mtcyan\x1b[0m"); + EXPECT_WRITE(stdout, + fmt::print(fg(fmt::terminal_color::bright_green), "tbgreen"), + "\x1b[92mtbgreen\x1b[0m"); + EXPECT_WRITE(stdout, + fmt::print(bg(fmt::terminal_color::bright_magenta), "tbmagenta"), + "\x1b[105mtbmagenta\x1b[0m"); +} + +TEST(ColorsTest, Format) { + EXPECT_EQ(fmt::format(fg(fmt::rgb(255, 20, 30)), "rgb(255,20,30)"), + "\x1b[38;2;255;020;030mrgb(255,20,30)\x1b[0m"); + EXPECT_EQ(fmt::format(fg(fmt::rgb(255, 20, 30)), L"rgb(255,20,30) wide"), + L"\x1b[38;2;255;020;030mrgb(255,20,30) wide\x1b[0m"); + EXPECT_EQ(fmt::format(fg(fmt::color::blue), "blue"), + "\x1b[38;2;000;000;255mblue\x1b[0m"); + EXPECT_EQ( + fmt::format(fg(fmt::color::blue) | bg(fmt::color::red), "two color"), + "\x1b[38;2;000;000;255m\x1b[48;2;255;000;000mtwo color\x1b[0m"); + EXPECT_EQ(fmt::format(fmt::emphasis::bold, "bold"), "\x1b[1mbold\x1b[0m"); + EXPECT_EQ(fmt::format(fmt::emphasis::italic, "italic"), + "\x1b[3mitalic\x1b[0m"); + EXPECT_EQ(fmt::format(fmt::emphasis::underline, "underline"), + "\x1b[4munderline\x1b[0m"); + EXPECT_EQ(fmt::format(fmt::emphasis::strikethrough, "strikethrough"), + "\x1b[9mstrikethrough\x1b[0m"); + EXPECT_EQ( + fmt::format(fg(fmt::color::blue) | fmt::emphasis::bold, "blue/bold"), + "\x1b[1m\x1b[38;2;000;000;255mblue/bold\x1b[0m"); + EXPECT_EQ(fmt::format(fmt::emphasis::bold, "bold error"), + "\x1b[1mbold error\x1b[0m"); + EXPECT_EQ(fmt::format(fg(fmt::color::blue), "blue log"), + "\x1b[38;2;000;000;255mblue log\x1b[0m"); + EXPECT_EQ(fmt::format(fmt::text_style(), "hi"), "hi"); + EXPECT_EQ(fmt::format(fg(fmt::terminal_color::red), "tred"), + "\x1b[31mtred\x1b[0m"); + EXPECT_EQ(fmt::format(bg(fmt::terminal_color::cyan), "tcyan"), + "\x1b[46mtcyan\x1b[0m"); + EXPECT_EQ(fmt::format(fg(fmt::terminal_color::bright_green), "tbgreen"), + "\x1b[92mtbgreen\x1b[0m"); + EXPECT_EQ(fmt::format(bg(fmt::terminal_color::bright_magenta), "tbmagenta"), + "\x1b[105mtbmagenta\x1b[0m"); + EXPECT_EQ(fmt::format(fg(fmt::terminal_color::red), "{}", "foo"), + "\x1b[31mfoo\x1b[0m"); +} + +TEST(ColorsTest, FormatToOutAcceptsTextStyle) { + fmt::text_style ts = fg(fmt::rgb(255, 20, 30)); + std::string out; + fmt::format_to(std::back_inserter(out), ts, "rgb(255,20,30){}{}{}", 1, 2, 3); + + EXPECT_EQ(fmt::to_string(out), + "\x1b[38;2;255;020;030mrgb(255,20,30)123\x1b[0m"); +} diff --git a/contrib/libs/fmt/test/color-test/ya.make b/contrib/libs/fmt/test/color-test/ya.make new file mode 100644 index 0000000000..22e6654b0f --- /dev/null +++ b/contrib/libs/fmt/test/color-test/ya.make @@ -0,0 +1,37 @@ +# Generated by devtools/yamaker. + +GTEST() + +WITHOUT_LICENSE_TEXTS() + +OWNER( + orivej + g:cpp-contrib +) + +LICENSE(MIT) + +PEERDIR( + contrib/libs/fmt + contrib/libs/fmt/test +) + +NO_COMPILER_WARNINGS() + +NO_UTIL() + +CFLAGS( + -DFMT_LOCALE + -DFMT_SHARED + -DGTEST_HAS_STD_WSTRING=1 + -DGTEST_LANG_CXX11=0 + -D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING=1 +) + +SRCDIR(contrib/libs/fmt/test) + +SRCS( + color-test.cc +) + +END() diff --git a/contrib/libs/fmt/test/compile-test.cc b/contrib/libs/fmt/test/compile-test.cc new file mode 100644 index 0000000000..9bb9bb7d9e --- /dev/null +++ b/contrib/libs/fmt/test/compile-test.cc @@ -0,0 +1,173 @@ +// Formatting library for C++ - formatting library tests +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#include <string> +#include <type_traits> + +// Check that fmt/compile.h compiles with windows.h included before it. +#ifdef _WIN32 +# include <windows.h> +#endif + +#include "fmt/compile.h" +#include <gmock/gmock.h> +#include "gtest-extra.h" +#include "util.h" + +// compiletime_prepared_parts_type_provider is useful only with relaxed +// constexpr. +#if FMT_USE_CONSTEXPR +template <unsigned EXPECTED_PARTS_COUNT, typename Format> +void check_prepared_parts_type(Format format) { + typedef fmt::detail::compiled_format_base<decltype(format)> provider; + typedef fmt::detail::format_part<char> + expected_parts_type[EXPECTED_PARTS_COUNT]; + static_assert(std::is_same<typename provider::parts_container, + expected_parts_type>::value, + "CompileTimePreparedPartsTypeProvider test failed"); +} + +TEST(CompileTest, CompileTimePreparedPartsTypeProvider) { + check_prepared_parts_type<1u>(FMT_STRING("text")); + check_prepared_parts_type<1u>(FMT_STRING("{}")); + check_prepared_parts_type<2u>(FMT_STRING("text{}")); + check_prepared_parts_type<2u>(FMT_STRING("{}text")); + check_prepared_parts_type<3u>(FMT_STRING("text{}text")); + check_prepared_parts_type<3u>(FMT_STRING("{:{}.{}} {:{}}")); + + check_prepared_parts_type<3u>(FMT_STRING("{{{}}}")); // '{', 'argument', '}' + check_prepared_parts_type<2u>(FMT_STRING("text{{")); // 'text', '{' + check_prepared_parts_type<3u>(FMT_STRING("text{{ ")); // 'text', '{', ' ' + check_prepared_parts_type<2u>(FMT_STRING("}}text")); // '}', text + check_prepared_parts_type<2u>(FMT_STRING("text}}text")); // 'text}', 'text' + check_prepared_parts_type<4u>( + FMT_STRING("text{{}}text")); // 'text', '{', '}', 'text' +} +#endif + +TEST(CompileTest, PassStringLiteralFormat) { + const auto prepared = fmt::detail::compile<int>("test {}"); + EXPECT_EQ("test 42", fmt::format(prepared, 42)); + const auto wprepared = fmt::detail::compile<int>(L"test {}"); + EXPECT_EQ(L"test 42", fmt::format(wprepared, 42)); +} + +TEST(CompileTest, FormatToArrayOfChars) { + char buffer[32] = {0}; + const auto prepared = fmt::detail::compile<int>("4{}"); + fmt::format_to(fmt::detail::make_checked(buffer, 32), prepared, 2); + EXPECT_EQ(std::string("42"), buffer); + wchar_t wbuffer[32] = {0}; + const auto wprepared = fmt::detail::compile<int>(L"4{}"); + fmt::format_to(fmt::detail::make_checked(wbuffer, 32), wprepared, 2); + EXPECT_EQ(std::wstring(L"42"), wbuffer); +} + +TEST(CompileTest, FormatToIterator) { + std::string s(2, ' '); + const auto prepared = fmt::detail::compile<int>("4{}"); + fmt::format_to(s.begin(), prepared, 2); + EXPECT_EQ("42", s); + std::wstring ws(2, L' '); + const auto wprepared = fmt::detail::compile<int>(L"4{}"); + fmt::format_to(ws.begin(), wprepared, 2); + EXPECT_EQ(L"42", ws); +} + +TEST(CompileTest, FormatToN) { + char buf[5]; + auto f = fmt::detail::compile<int>("{:10}"); + auto result = fmt::format_to_n(buf, 5, f, 42); + EXPECT_EQ(result.size, 10); + EXPECT_EQ(result.out, buf + 5); + EXPECT_EQ(fmt::string_view(buf, 5), " "); +} + +TEST(CompileTest, FormattedSize) { + auto f = fmt::detail::compile<int>("{:10}"); + EXPECT_EQ(fmt::formatted_size(f, 42), 10); +} + +TEST(CompileTest, MultipleTypes) { + auto f = fmt::detail::compile<int, int>("{} {}"); + EXPECT_EQ(fmt::format(f, 42, 42), "42 42"); +} + +struct test_formattable {}; + +FMT_BEGIN_NAMESPACE +template <> struct formatter<test_formattable> : formatter<const char*> { + template <typename FormatContext> + auto format(test_formattable, FormatContext& ctx) -> decltype(ctx.out()) { + return formatter<const char*>::format("foo", ctx); + } +}; +FMT_END_NAMESPACE + +TEST(CompileTest, FormatUserDefinedType) { + auto f = fmt::detail::compile<test_formattable>("{}"); + EXPECT_EQ(fmt::format(f, test_formattable()), "foo"); +} + +TEST(CompileTest, EmptyFormatString) { + auto f = fmt::detail::compile<>(""); + EXPECT_EQ(fmt::format(f), ""); +} + +#ifdef __cpp_if_constexpr +TEST(CompileTest, FormatDefault) { + EXPECT_EQ("42", fmt::format(FMT_COMPILE("{}"), 42)); + EXPECT_EQ("42", fmt::format(FMT_COMPILE("{}"), 42u)); + EXPECT_EQ("42", fmt::format(FMT_COMPILE("{}"), 42ll)); + EXPECT_EQ("42", fmt::format(FMT_COMPILE("{}"), 42ull)); + EXPECT_EQ("true", fmt::format(FMT_COMPILE("{}"), true)); + EXPECT_EQ("x", fmt::format(FMT_COMPILE("{}"), 'x')); + EXPECT_EQ("4.2", fmt::format(FMT_COMPILE("{}"), 4.2)); + EXPECT_EQ("foo", fmt::format(FMT_COMPILE("{}"), "foo")); + EXPECT_EQ("foo", fmt::format(FMT_COMPILE("{}"), std::string("foo"))); + EXPECT_EQ("foo", fmt::format(FMT_COMPILE("{}"), test_formattable())); +} + +TEST(CompileTest, FormatWideString) { + EXPECT_EQ(L"42", fmt::format(FMT_COMPILE(L"{}"), 42)); +} + +TEST(CompileTest, FormatSpecs) { + EXPECT_EQ("42", fmt::format(FMT_COMPILE("{:x}"), 0x42)); +} + +TEST(CompileTest, DynamicWidth) { + EXPECT_EQ(" 42foo ", + fmt::format(FMT_COMPILE("{:{}}{:{}}"), 42, 4, "foo", 5)); +} + +TEST(CompileTest, FormatTo) { + char buf[8]; + auto end = fmt::format_to(buf, FMT_COMPILE("{}"), 42); + *end = '\0'; + EXPECT_STREQ("42", buf); + end = fmt::format_to(buf, FMT_COMPILE("{:x}"), 42); + *end = '\0'; + EXPECT_STREQ("2a", buf); +} + +TEST(CompileTest, FormatToNWithCompileMacro) { + constexpr auto buffer_size = 8; + char buffer[buffer_size]; + auto res = fmt::format_to_n(buffer, buffer_size, FMT_COMPILE("{}"), 42); + *res.out = '\0'; + EXPECT_STREQ("42", buffer); + res = fmt::format_to_n(buffer, buffer_size, FMT_COMPILE("{:x}"), 42); + *res.out = '\0'; + EXPECT_STREQ("2a", buffer); +} + +TEST(CompileTest, TextAndArg) { + EXPECT_EQ(">>>42<<<", fmt::format(FMT_COMPILE(">>>{}<<<"), 42)); + EXPECT_EQ("42!", fmt::format(FMT_COMPILE("{}!"), 42)); +} +#endif diff --git a/contrib/libs/fmt/test/compile-test/ya.make b/contrib/libs/fmt/test/compile-test/ya.make new file mode 100644 index 0000000000..0173e7e70f --- /dev/null +++ b/contrib/libs/fmt/test/compile-test/ya.make @@ -0,0 +1,37 @@ +# Generated by devtools/yamaker. + +GTEST() + +WITHOUT_LICENSE_TEXTS() + +OWNER( + orivej + g:cpp-contrib +) + +LICENSE(MIT) + +PEERDIR( + contrib/libs/fmt + contrib/libs/fmt/test +) + +NO_COMPILER_WARNINGS() + +NO_UTIL() + +CFLAGS( + -DFMT_LOCALE + -DFMT_SHARED + -DGTEST_HAS_STD_WSTRING=1 + -DGTEST_LANG_CXX11=0 + -D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING=1 +) + +SRCDIR(contrib/libs/fmt/test) + +SRCS( + compile-test.cc +) + +END() diff --git a/contrib/libs/fmt/test/core-test.cc b/contrib/libs/fmt/test/core-test.cc new file mode 100644 index 0000000000..a5fd01fa4d --- /dev/null +++ b/contrib/libs/fmt/test/core-test.cc @@ -0,0 +1,773 @@ +// Formatting library for C++ - core tests +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#include <algorithm> +#include <climits> +#include <cstring> +#include <functional> +#include <iterator> +#include <limits> +#include <memory> +#include <string> +#include <type_traits> + +#include <gmock/gmock.h> +#include "test-assert.h" + +// Check if fmt/core.h compiles with windows.h included before it. +#ifdef _WIN32 +# include <windows.h> +#endif + +#include "fmt/core.h" + +#undef min +#undef max + +using fmt::basic_format_arg; +using fmt::string_view; +using fmt::detail::buffer; +using fmt::detail::make_arg; +using fmt::detail::value; + +using testing::_; +using testing::Invoke; +using testing::Return; +using testing::StrictMock; + +struct test_struct {}; + +FMT_BEGIN_NAMESPACE +template <typename Char> struct formatter<test_struct, Char> { + template <typename ParseContext> + auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { + return ctx.begin(); + } + + auto format(test_struct, format_context& ctx) -> decltype(ctx.out()) { + const Char* test = "test"; + return std::copy_n(test, std::strlen(test), ctx.out()); + } +}; +FMT_END_NAMESPACE + +#if !FMT_GCC_VERSION || FMT_GCC_VERSION >= 470 +TEST(BufferTest, Noncopyable) { + EXPECT_FALSE(std::is_copy_constructible<buffer<char>>::value); +# if !FMT_MSC_VER + // std::is_copy_assignable is broken in MSVC2013. + EXPECT_FALSE(std::is_copy_assignable<buffer<char>>::value); +# endif +} + +TEST(BufferTest, Nonmoveable) { + EXPECT_FALSE(std::is_move_constructible<buffer<char>>::value); +# if !FMT_MSC_VER + // std::is_move_assignable is broken in MSVC2013. + EXPECT_FALSE(std::is_move_assignable<buffer<char>>::value); +# endif +} +#endif + +TEST(BufferTest, Indestructible) { + static_assert(!std::is_destructible<fmt::detail::buffer<int>>(), + "buffer's destructor is protected"); +} + +template <typename T> struct mock_buffer final : buffer<T> { + MOCK_METHOD1(do_grow, size_t(size_t capacity)); + + void grow(size_t capacity) { this->set(this->data(), do_grow(capacity)); } + + mock_buffer(T* data = nullptr, size_t capacity = 0) { + this->set(data, capacity); + ON_CALL(*this, do_grow(_)).WillByDefault(Invoke([](size_t capacity) { + return capacity; + })); + } +}; + +TEST(BufferTest, Ctor) { + { + mock_buffer<int> buffer; + EXPECT_EQ(nullptr, buffer.data()); + EXPECT_EQ(static_cast<size_t>(0), buffer.size()); + EXPECT_EQ(static_cast<size_t>(0), buffer.capacity()); + } + { + int dummy; + mock_buffer<int> buffer(&dummy); + EXPECT_EQ(&dummy, &buffer[0]); + EXPECT_EQ(static_cast<size_t>(0), buffer.size()); + EXPECT_EQ(static_cast<size_t>(0), buffer.capacity()); + } + { + int dummy; + size_t capacity = std::numeric_limits<size_t>::max(); + mock_buffer<int> buffer(&dummy, capacity); + EXPECT_EQ(&dummy, &buffer[0]); + EXPECT_EQ(static_cast<size_t>(0), buffer.size()); + EXPECT_EQ(capacity, buffer.capacity()); + } +} + +TEST(BufferTest, Access) { + char data[10]; + mock_buffer<char> buffer(data, sizeof(data)); + buffer[0] = 11; + EXPECT_EQ(11, buffer[0]); + buffer[3] = 42; + EXPECT_EQ(42, *(&buffer[0] + 3)); + const fmt::detail::buffer<char>& const_buffer = buffer; + EXPECT_EQ(42, const_buffer[3]); +} + +TEST(BufferTest, TryResize) { + char data[123]; + mock_buffer<char> buffer(data, sizeof(data)); + buffer[10] = 42; + EXPECT_EQ(42, buffer[10]); + buffer.try_resize(20); + EXPECT_EQ(20u, buffer.size()); + EXPECT_EQ(123u, buffer.capacity()); + EXPECT_EQ(42, buffer[10]); + buffer.try_resize(5); + EXPECT_EQ(5u, buffer.size()); + EXPECT_EQ(123u, buffer.capacity()); + EXPECT_EQ(42, buffer[10]); + // Check if try_resize calls grow. + EXPECT_CALL(buffer, do_grow(124)); + buffer.try_resize(124); + EXPECT_CALL(buffer, do_grow(200)); + buffer.try_resize(200); +} + +TEST(BufferTest, TryResizePartial) { + char data[10]; + mock_buffer<char> buffer(data, sizeof(data)); + EXPECT_CALL(buffer, do_grow(20)).WillOnce(Return(15)); + buffer.try_resize(20); + EXPECT_EQ(buffer.capacity(), 15); + EXPECT_EQ(buffer.size(), 15); +} + +TEST(BufferTest, Clear) { + mock_buffer<char> buffer; + EXPECT_CALL(buffer, do_grow(20)); + buffer.try_resize(20); + buffer.try_resize(0); + EXPECT_EQ(static_cast<size_t>(0), buffer.size()); + EXPECT_EQ(20u, buffer.capacity()); +} + +TEST(BufferTest, Append) { + char data[15]; + mock_buffer<char> buffer(data, 10); + auto test = "test"; + buffer.append(test, test + 5); + EXPECT_STREQ(test, &buffer[0]); + EXPECT_EQ(5u, buffer.size()); + buffer.try_resize(10); + EXPECT_CALL(buffer, do_grow(12)); + buffer.append(test, test + 2); + EXPECT_EQ('t', buffer[10]); + EXPECT_EQ('e', buffer[11]); + EXPECT_EQ(12u, buffer.size()); +} + +TEST(BufferTest, AppendPartial) { + char data[10]; + mock_buffer<char> buffer(data, sizeof(data)); + testing::InSequence seq; + EXPECT_CALL(buffer, do_grow(15)).WillOnce(Return(10)); + EXPECT_CALL(buffer, do_grow(15)).WillOnce(Invoke([&buffer](size_t) { + EXPECT_EQ(fmt::string_view(buffer.data(), buffer.size()), "0123456789"); + buffer.clear(); + return 10; + })); + auto test = "0123456789abcde"; + buffer.append(test, test + 15); +} + +TEST(BufferTest, AppendAllocatesEnoughStorage) { + char data[19]; + mock_buffer<char> buffer(data, 10); + auto test = "abcdefgh"; + buffer.try_resize(10); + EXPECT_CALL(buffer, do_grow(19)); + buffer.append(test, test + 9); +} + +TEST(ArgTest, FormatArgs) { + auto args = fmt::format_args(); + EXPECT_FALSE(args.get(1)); +} + +struct custom_context { + using char_type = char; + using parse_context_type = fmt::format_parse_context; + + template <typename T> struct formatter_type { + template <typename ParseContext> + auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { + return ctx.begin(); + } + + const char* format(const T&, custom_context& ctx) { + ctx.called = true; + return nullptr; + } + }; + + bool called; + fmt::format_parse_context ctx; + + fmt::format_parse_context& parse_context() { return ctx; } + void advance_to(const char*) {} +}; + +TEST(ArgTest, MakeValueWithCustomContext) { + auto t = test_struct(); + fmt::detail::value<custom_context> arg( + fmt::detail::arg_mapper<custom_context>().map(t)); + custom_context ctx = {false, fmt::format_parse_context("")}; + arg.custom.format(&t, ctx.parse_context(), ctx); + EXPECT_TRUE(ctx.called); +} + +FMT_BEGIN_NAMESPACE +namespace detail { +template <typename Char> +bool operator==(custom_value<Char> lhs, custom_value<Char> rhs) { + return lhs.value == rhs.value; +} +} // namespace detail +FMT_END_NAMESPACE + +// Use a unique result type to make sure that there are no undesirable +// conversions. +struct test_result {}; + +template <typename T> struct mock_visitor { + template <typename U> struct result { using type = test_result; }; + + mock_visitor() { + ON_CALL(*this, visit(_)).WillByDefault(Return(test_result())); + } + + MOCK_METHOD1_T(visit, test_result(T value)); + MOCK_METHOD0_T(unexpected, void()); + + test_result operator()(T value) { return visit(value); } + + template <typename U> test_result operator()(U) { + unexpected(); + return test_result(); + } +}; + +template <typename T> struct visit_type { using type = T; }; + +#define VISIT_TYPE(type_, visit_type_) \ + template <> struct visit_type<type_> { using type = visit_type_; } + +VISIT_TYPE(signed char, int); +VISIT_TYPE(unsigned char, unsigned); +VISIT_TYPE(short, int); +VISIT_TYPE(unsigned short, unsigned); + +#if LONG_MAX == INT_MAX +VISIT_TYPE(long, int); +VISIT_TYPE(unsigned long, unsigned); +#else +VISIT_TYPE(long, long long); +VISIT_TYPE(unsigned long, unsigned long long); +#endif + +#define CHECK_ARG_(Char, expected, value) \ + { \ + testing::StrictMock<mock_visitor<decltype(expected)>> visitor; \ + EXPECT_CALL(visitor, visit(expected)); \ + using iterator = std::back_insert_iterator<buffer<Char>>; \ + fmt::visit_format_arg( \ + visitor, make_arg<fmt::basic_format_context<iterator, Char>>(value)); \ + } + +#define CHECK_ARG(value, typename_) \ + { \ + using value_type = decltype(value); \ + typename_ visit_type<value_type>::type expected = value; \ + CHECK_ARG_(char, expected, value) \ + CHECK_ARG_(wchar_t, expected, value) \ + } + +template <typename T> class NumericArgTest : public testing::Test {}; + +using types = + ::testing::Types<bool, signed char, unsigned char, signed, unsigned short, + int, unsigned, long, unsigned long, long long, + unsigned long long, float, double, long double>; +TYPED_TEST_CASE(NumericArgTest, types); + +template <typename T> +fmt::enable_if_t<std::is_integral<T>::value, T> test_value() { + return static_cast<T>(42); +} + +template <typename T> +fmt::enable_if_t<std::is_floating_point<T>::value, T> test_value() { + return static_cast<T>(4.2); +} + +TYPED_TEST(NumericArgTest, MakeAndVisit) { + CHECK_ARG(test_value<TypeParam>(), typename); + CHECK_ARG(std::numeric_limits<TypeParam>::min(), typename); + CHECK_ARG(std::numeric_limits<TypeParam>::max(), typename); +} + +TEST(ArgTest, CharArg) { + CHECK_ARG_(char, 'a', 'a'); + CHECK_ARG_(wchar_t, L'a', 'a'); + CHECK_ARG_(wchar_t, L'a', L'a'); +} + +TEST(ArgTest, StringArg) { + char str_data[] = "test"; + char* str = str_data; + const char* cstr = str; + CHECK_ARG_(char, cstr, str); + + auto sref = string_view(str); + CHECK_ARG_(char, sref, std::string(str)); +} + +TEST(ArgTest, WStringArg) { + wchar_t str_data[] = L"test"; + wchar_t* str = str_data; + const wchar_t* cstr = str; + + fmt::wstring_view sref(str); + CHECK_ARG_(wchar_t, cstr, str); + CHECK_ARG_(wchar_t, cstr, cstr); + CHECK_ARG_(wchar_t, sref, std::wstring(str)); + CHECK_ARG_(wchar_t, sref, fmt::wstring_view(str)); +} + +TEST(ArgTest, PointerArg) { + void* p = nullptr; + const void* cp = nullptr; + CHECK_ARG_(char, cp, p); + CHECK_ARG_(wchar_t, cp, p); + CHECK_ARG(cp, ); +} + +struct check_custom { + test_result operator()( + fmt::basic_format_arg<fmt::format_context>::handle h) const { + struct test_buffer final : fmt::detail::buffer<char> { + char data[10]; + test_buffer() : fmt::detail::buffer<char>(data, 0, 10) {} + void grow(size_t) {} + } buffer; + fmt::format_parse_context parse_ctx(""); + fmt::format_context ctx{fmt::detail::buffer_appender<char>(buffer), + fmt::format_args()}; + h.format(parse_ctx, ctx); + EXPECT_EQ("test", std::string(buffer.data, buffer.size())); + return test_result(); + } +}; + +TEST(ArgTest, CustomArg) { + test_struct test; + using visitor = + mock_visitor<fmt::basic_format_arg<fmt::format_context>::handle>; + testing::StrictMock<visitor> v; + EXPECT_CALL(v, visit(_)).WillOnce(Invoke(check_custom())); + fmt::visit_format_arg(v, make_arg<fmt::format_context>(test)); +} + +TEST(ArgTest, VisitInvalidArg) { + testing::StrictMock<mock_visitor<fmt::monostate>> visitor; + EXPECT_CALL(visitor, visit(_)); + fmt::basic_format_arg<fmt::format_context> arg; + fmt::visit_format_arg(visitor, arg); +} + +TEST(FormatDynArgsTest, Basic) { + fmt::dynamic_format_arg_store<fmt::format_context> store; + store.push_back(42); + store.push_back("abc1"); + store.push_back(1.5f); + EXPECT_EQ("42 and abc1 and 1.5", fmt::vformat("{} and {} and {}", store)); +} + +TEST(FormatDynArgsTest, StringsAndRefs) { + // Unfortunately the tests are compiled with old ABI so strings use COW. + fmt::dynamic_format_arg_store<fmt::format_context> store; + char str[] = "1234567890"; + store.push_back(str); + store.push_back(std::cref(str)); + store.push_back(fmt::string_view{str}); + str[0] = 'X'; + + std::string result = fmt::vformat("{} and {} and {}", store); + EXPECT_EQ("1234567890 and X234567890 and X234567890", result); +} + +struct custom_type { + int i = 0; +}; + +FMT_BEGIN_NAMESPACE +template <> struct formatter<custom_type> { + auto parse(format_parse_context& ctx) const -> decltype(ctx.begin()) { + return ctx.begin(); + } + + template <typename FormatContext> + auto format(const custom_type& p, FormatContext& ctx) -> decltype(ctx.out()) { + return format_to(ctx.out(), "cust={}", p.i); + } +}; +FMT_END_NAMESPACE + +TEST(FormatDynArgsTest, CustomFormat) { + fmt::dynamic_format_arg_store<fmt::format_context> store; + custom_type c{}; + store.push_back(c); + ++c.i; + store.push_back(c); + ++c.i; + store.push_back(std::cref(c)); + ++c.i; + std::string result = fmt::vformat("{} and {} and {}", store); + EXPECT_EQ("cust=0 and cust=1 and cust=3", result); +} + +TEST(FormatDynArgsTest, NamedInt) { + fmt::dynamic_format_arg_store<fmt::format_context> store; + store.push_back(fmt::arg("a1", 42)); + EXPECT_EQ("42", fmt::vformat("{a1}", store)); +} + +TEST(FormatDynArgsTest, NamedStrings) { + fmt::dynamic_format_arg_store<fmt::format_context> store; + char str[]{"1234567890"}; + store.push_back(fmt::arg("a1", str)); + store.push_back(fmt::arg("a2", std::cref(str))); + str[0] = 'X'; + EXPECT_EQ("1234567890 and X234567890", fmt::vformat("{a1} and {a2}", store)); +} + +TEST(FormatDynArgsTest, NamedArgByRef) { + fmt::dynamic_format_arg_store<fmt::format_context> store; + + // Note: fmt::arg() constructs an object which holds a reference + // to its value. It's not an aggregate, so it doesn't extend the + // reference lifetime. As a result, it's a very bad idea passing temporary + // as a named argument value. Only GCC with optimization level >0 + // complains about this. + // + // A real life usecase is when you have both name and value alive + // guarantee their lifetime and thus don't want them to be copied into + // storages. + int a1_val{42}; + auto a1 = fmt::arg("a1_", a1_val); + store.push_back("abc"); + store.push_back(1.5f); + store.push_back(std::cref(a1)); + + std::string result = fmt::vformat("{a1_} and {} and {} and {}", store); + EXPECT_EQ("42 and abc and 1.5 and 42", result); +} + +TEST(FormatDynArgsTest, NamedCustomFormat) { + fmt::dynamic_format_arg_store<fmt::format_context> store; + custom_type c{}; + store.push_back(fmt::arg("c1", c)); + ++c.i; + store.push_back(fmt::arg("c2", c)); + ++c.i; + store.push_back(fmt::arg("c_ref", std::cref(c))); + ++c.i; + std::string result = fmt::vformat("{c1} and {c2} and {c_ref}", store); + EXPECT_EQ("cust=0 and cust=1 and cust=3", result); +} + +TEST(FormatDynArgsTest, Clear) { + fmt::dynamic_format_arg_store<fmt::format_context> store; + store.push_back(42); + + std::string result = fmt::vformat("{}", store); + EXPECT_EQ("42", result); + + store.push_back(43); + result = fmt::vformat("{} and {}", store); + EXPECT_EQ("42 and 43", result); + + store.clear(); + store.push_back(44); + result = fmt::vformat("{}", store); + EXPECT_EQ("44", result); +} + +TEST(FormatDynArgsTest, Reserve) { + fmt::dynamic_format_arg_store<fmt::format_context> store; + store.reserve(2, 1); + store.push_back(1.5f); + store.push_back(fmt::arg("a1", 42)); + std::string result = fmt::vformat("{a1} and {}", store); + EXPECT_EQ("42 and 1.5", result); +} + +struct copy_throwable { + copy_throwable() {} + copy_throwable(const copy_throwable&) { throw "deal with it"; } +}; + +FMT_BEGIN_NAMESPACE +template <> struct formatter<copy_throwable> { + auto parse(format_parse_context& ctx) const -> decltype(ctx.begin()) { + return ctx.begin(); + } + auto format(copy_throwable, format_context& ctx) -> decltype(ctx.out()) { + return ctx.out(); + } +}; +FMT_END_NAMESPACE + +TEST(FormatDynArgsTest, ThrowOnCopy) { + fmt::dynamic_format_arg_store<fmt::format_context> store; + store.push_back(std::string("foo")); + try { + store.push_back(copy_throwable()); + } catch (...) { + } + EXPECT_EQ(fmt::vformat("{}", store), "foo"); +} + +TEST(StringViewTest, ValueType) { + static_assert(std::is_same<string_view::value_type, char>::value, ""); +} + +TEST(StringViewTest, Length) { + // Test that string_view::size() returns string length, not buffer size. + char str[100] = "some string"; + EXPECT_EQ(std::strlen(str), string_view(str).size()); + EXPECT_LT(std::strlen(str), sizeof(str)); +} + +// Check string_view's comparison operator. +template <template <typename> class Op> void check_op() { + const char* inputs[] = {"foo", "fop", "fo"}; + size_t num_inputs = sizeof(inputs) / sizeof(*inputs); + for (size_t i = 0; i < num_inputs; ++i) { + for (size_t j = 0; j < num_inputs; ++j) { + string_view lhs(inputs[i]), rhs(inputs[j]); + EXPECT_EQ(Op<int>()(lhs.compare(rhs), 0), Op<string_view>()(lhs, rhs)); + } + } +} + +TEST(StringViewTest, Compare) { + EXPECT_EQ(string_view("foo").compare(string_view("foo")), 0); + EXPECT_GT(string_view("fop").compare(string_view("foo")), 0); + EXPECT_LT(string_view("foo").compare(string_view("fop")), 0); + EXPECT_GT(string_view("foo").compare(string_view("fo")), 0); + EXPECT_LT(string_view("fo").compare(string_view("foo")), 0); + check_op<std::equal_to>(); + check_op<std::not_equal_to>(); + check_op<std::less>(); + check_op<std::less_equal>(); + check_op<std::greater>(); + check_op<std::greater_equal>(); +} + +struct enabled_formatter {}; +struct disabled_formatter {}; +struct disabled_formatter_convertible { + operator int() const { return 42; } +}; + +FMT_BEGIN_NAMESPACE +template <> struct formatter<enabled_formatter> { + auto parse(format_parse_context& ctx) -> decltype(ctx.begin()) { + return ctx.begin(); + } + auto format(enabled_formatter, format_context& ctx) -> decltype(ctx.out()) { + return ctx.out(); + } +}; +FMT_END_NAMESPACE + +TEST(CoreTest, HasFormatter) { + using fmt::has_formatter; + using context = fmt::format_context; + static_assert(has_formatter<enabled_formatter, context>::value, ""); + static_assert(!has_formatter<disabled_formatter, context>::value, ""); + static_assert(!has_formatter<disabled_formatter_convertible, context>::value, + ""); +} + +struct convertible_to_int { + operator int() const { return 42; } +}; + +struct convertible_to_c_string { + operator const char*() const { return "foo"; } +}; + +FMT_BEGIN_NAMESPACE +template <> struct formatter<convertible_to_int> { + auto parse(format_parse_context& ctx) -> decltype(ctx.begin()) { + return ctx.begin(); + } + auto format(convertible_to_int, format_context& ctx) -> decltype(ctx.out()) { + return std::copy_n("foo", 3, ctx.out()); + } +}; + +template <> struct formatter<convertible_to_c_string> { + auto parse(format_parse_context& ctx) -> decltype(ctx.begin()) { + return ctx.begin(); + } + auto format(convertible_to_c_string, format_context& ctx) + -> decltype(ctx.out()) { + return std::copy_n("bar", 3, ctx.out()); + } +}; +FMT_END_NAMESPACE + +TEST(CoreTest, FormatterOverridesImplicitConversion) { + EXPECT_EQ(fmt::format("{}", convertible_to_int()), "foo"); + EXPECT_EQ(fmt::format("{}", convertible_to_c_string()), "bar"); +} + +namespace my_ns { +template <typename Char> class my_string { + private: + std::basic_string<Char> s_; + + public: + my_string(const Char* s) : s_(s) {} + const Char* data() const FMT_NOEXCEPT { return s_.data(); } + size_t length() const FMT_NOEXCEPT { return s_.size(); } + operator const Char*() const { return s_.c_str(); } +}; + +template <typename Char> +inline fmt::basic_string_view<Char> to_string_view(const my_string<Char>& s) + FMT_NOEXCEPT { + return {s.data(), s.length()}; +} + +struct non_string {}; +} // namespace my_ns + +template <typename T> class IsStringTest : public testing::Test {}; + +typedef ::testing::Types<char, wchar_t, char16_t, char32_t> StringCharTypes; +TYPED_TEST_CASE(IsStringTest, StringCharTypes); + +namespace { +template <typename Char> +struct derived_from_string_view : fmt::basic_string_view<Char> {}; +} // namespace + +TYPED_TEST(IsStringTest, IsString) { + EXPECT_TRUE(fmt::detail::is_string<TypeParam*>::value); + EXPECT_TRUE(fmt::detail::is_string<const TypeParam*>::value); + EXPECT_TRUE(fmt::detail::is_string<TypeParam[2]>::value); + EXPECT_TRUE(fmt::detail::is_string<const TypeParam[2]>::value); + EXPECT_TRUE(fmt::detail::is_string<std::basic_string<TypeParam>>::value); + EXPECT_TRUE(fmt::detail::is_string<fmt::basic_string_view<TypeParam>>::value); + EXPECT_TRUE( + fmt::detail::is_string<derived_from_string_view<TypeParam>>::value); + using string_view = fmt::detail::std_string_view<TypeParam>; + EXPECT_TRUE(std::is_empty<string_view>::value != + fmt::detail::is_string<string_view>::value); + EXPECT_TRUE(fmt::detail::is_string<my_ns::my_string<TypeParam>>::value); + EXPECT_FALSE(fmt::detail::is_string<my_ns::non_string>::value); +} + +TEST(CoreTest, Format) { + // This should work without including fmt/format.h. +#ifdef FMT_FORMAT_H_ +# error fmt/format.h must not be included in the core test +#endif + EXPECT_EQ(fmt::format("{}", 42), "42"); +} + +TEST(CoreTest, FormatTo) { + // This should work without including fmt/format.h. +#ifdef FMT_FORMAT_H_ +# error fmt/format.h must not be included in the core test +#endif + std::string s; + fmt::format_to(std::back_inserter(s), "{}", 42); + EXPECT_EQ(s, "42"); +} + +TEST(CoreTest, ToStringViewForeignStrings) { + using namespace my_ns; + EXPECT_EQ(to_string_view(my_string<char>("42")), "42"); + fmt::detail::type type = + fmt::detail::mapped_type_constant<my_string<char>, + fmt::format_context>::value; + EXPECT_EQ(type, fmt::detail::type::string_type); +} + +TEST(CoreTest, FormatForeignStrings) { + using namespace my_ns; + EXPECT_EQ(fmt::format(my_string<char>("{}"), 42), "42"); +} + +struct implicitly_convertible_to_string { + operator std::string() const { return "foo"; } +}; + +struct implicitly_convertible_to_string_view { + operator fmt::string_view() const { return "foo"; } +}; + +TEST(CoreTest, FormatImplicitlyConvertibleToStringView) { + EXPECT_EQ("foo", fmt::format("{}", implicitly_convertible_to_string_view())); +} + +// std::is_constructible is broken in MSVC until version 2015. +#if !FMT_MSC_VER || FMT_MSC_VER >= 1900 +struct explicitly_convertible_to_string_view { + explicit operator fmt::string_view() const { return "foo"; } +}; + +TEST(CoreTest, FormatExplicitlyConvertibleToStringView) { + EXPECT_EQ("foo", fmt::format("{}", explicitly_convertible_to_string_view())); +} + +# ifdef FMT_USE_STRING_VIEW +struct explicitly_convertible_to_std_string_view { + explicit operator std::string_view() const { return "foo"; } +}; + +TEST(CoreTest, FormatExplicitlyConvertibleToStdStringView) { + EXPECT_EQ("foo", + fmt::format("{}", explicitly_convertible_to_std_string_view())); +} +# endif +#endif + +struct disabled_rvalue_conversion { + operator const char*() const& { return "foo"; } + operator const char*() & { return "foo"; } + operator const char*() const&& = delete; + operator const char*() && = delete; +}; + +TEST(CoreTest, DisabledRValueConversion) { + EXPECT_EQ("foo", fmt::format("{}", disabled_rvalue_conversion())); +} diff --git a/contrib/libs/fmt/test/core-test/ya.make b/contrib/libs/fmt/test/core-test/ya.make new file mode 100644 index 0000000000..8c320f4810 --- /dev/null +++ b/contrib/libs/fmt/test/core-test/ya.make @@ -0,0 +1,37 @@ +# Generated by devtools/yamaker. + +GTEST() + +WITHOUT_LICENSE_TEXTS() + +OWNER( + orivej + g:cpp-contrib +) + +LICENSE(MIT) + +PEERDIR( + contrib/libs/fmt + contrib/libs/fmt/test +) + +NO_COMPILER_WARNINGS() + +NO_UTIL() + +CFLAGS( + -DFMT_LOCALE + -DFMT_SHARED + -DGTEST_HAS_STD_WSTRING=1 + -DGTEST_LANG_CXX11=0 + -D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING=1 +) + +SRCDIR(contrib/libs/fmt/test) + +SRCS( + core-test.cc +) + +END() diff --git a/contrib/libs/fmt/test/format-impl-test.cc b/contrib/libs/fmt/test/format-impl-test.cc new file mode 100644 index 0000000000..66b55b5381 --- /dev/null +++ b/contrib/libs/fmt/test/format-impl-test.cc @@ -0,0 +1,446 @@ +// Formatting library for C++ - formatting library implementation tests +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#define FMT_NOEXCEPT +#undef FMT_SHARED +#include "test-assert.h" + +// Include format.cc instead of format.h to test implementation. +#include <algorithm> +#include <cstring> + +#include "../src/format.cc" +#include "fmt/printf.h" +#include <gmock/gmock.h> +#include "gtest-extra.h" +#include "util.h" + +#ifdef _WIN32 +# include <windows.h> +# undef max +#endif + +using fmt::detail::bigint; +using fmt::detail::fp; +using fmt::detail::max_value; + +static_assert(!std::is_copy_constructible<bigint>::value, ""); +static_assert(!std::is_copy_assignable<bigint>::value, ""); + +TEST(BigIntTest, Construct) { + EXPECT_EQ("", fmt::format("{}", bigint())); + EXPECT_EQ("42", fmt::format("{}", bigint(0x42))); + EXPECT_EQ("123456789abcedf0", fmt::format("{}", bigint(0x123456789abcedf0))); +} + +TEST(BigIntTest, Compare) { + bigint n1(42); + bigint n2(42); + EXPECT_EQ(compare(n1, n2), 0); + n2 <<= 32; + EXPECT_LT(compare(n1, n2), 0); + bigint n3(43); + EXPECT_LT(compare(n1, n3), 0); + EXPECT_GT(compare(n3, n1), 0); + bigint n4(42 * 0x100000001); + EXPECT_LT(compare(n2, n4), 0); + EXPECT_GT(compare(n4, n2), 0); +} + +TEST(BigIntTest, AddCompare) { + EXPECT_LT( + add_compare(bigint(0xffffffff), bigint(0xffffffff), bigint(1) <<= 64), 0); + EXPECT_LT(add_compare(bigint(1) <<= 32, bigint(1), bigint(1) <<= 96), 0); + EXPECT_GT(add_compare(bigint(1) <<= 32, bigint(0), bigint(0xffffffff)), 0); + EXPECT_GT(add_compare(bigint(0), bigint(1) <<= 32, bigint(0xffffffff)), 0); + EXPECT_GT(add_compare(bigint(42), bigint(1), bigint(42)), 0); + EXPECT_GT(add_compare(bigint(0xffffffff), bigint(1), bigint(0xffffffff)), 0); + EXPECT_LT(add_compare(bigint(10), bigint(10), bigint(22)), 0); + EXPECT_LT(add_compare(bigint(0x100000010), bigint(0x100000010), + bigint(0x300000010)), + 0); + EXPECT_GT(add_compare(bigint(0x1ffffffff), bigint(0x100000002), + bigint(0x300000000)), + 0); + EXPECT_EQ(add_compare(bigint(0x1ffffffff), bigint(0x100000002), + bigint(0x300000001)), + 0); + EXPECT_LT(add_compare(bigint(0x1ffffffff), bigint(0x100000002), + bigint(0x300000002)), + 0); + EXPECT_LT(add_compare(bigint(0x1ffffffff), bigint(0x100000002), + bigint(0x300000003)), + 0); +} + +TEST(BigIntTest, ShiftLeft) { + bigint n(0x42); + n <<= 0; + EXPECT_EQ("42", fmt::format("{}", n)); + n <<= 1; + EXPECT_EQ("84", fmt::format("{}", n)); + n <<= 25; + EXPECT_EQ("108000000", fmt::format("{}", n)); +} + +TEST(BigIntTest, Multiply) { + bigint n(0x42); + EXPECT_THROW(n *= 0, assertion_failure); + n *= 1; + EXPECT_EQ("42", fmt::format("{}", n)); + n *= 2; + EXPECT_EQ("84", fmt::format("{}", n)); + n *= 0x12345678; + EXPECT_EQ("962fc95e0", fmt::format("{}", n)); + bigint bigmax(max_value<uint32_t>()); + bigmax *= max_value<uint32_t>(); + EXPECT_EQ("fffffffe00000001", fmt::format("{}", bigmax)); + bigmax.assign(max_value<uint64_t>()); + bigmax *= max_value<uint64_t>(); + EXPECT_EQ("fffffffffffffffe0000000000000001", fmt::format("{}", bigmax)); +} + +TEST(BigIntTest, Accumulator) { + fmt::detail::accumulator acc; + EXPECT_EQ(acc.lower, 0); + EXPECT_EQ(acc.upper, 0); + acc.upper = 12; + acc.lower = 34; + EXPECT_EQ(static_cast<uint32_t>(acc), 34); + acc += 56; + EXPECT_EQ(acc.lower, 90); + acc += fmt::detail::max_value<uint64_t>(); + EXPECT_EQ(acc.upper, 13); + EXPECT_EQ(acc.lower, 89); + acc >>= 32; + EXPECT_EQ(acc.upper, 0); + EXPECT_EQ(acc.lower, 13 * 0x100000000); +} + +TEST(BigIntTest, Square) { + bigint n0(0); + n0.square(); + EXPECT_EQ("0", fmt::format("{}", n0)); + bigint n1(0x100); + n1.square(); + EXPECT_EQ("10000", fmt::format("{}", n1)); + bigint n2(0xfffffffff); + n2.square(); + EXPECT_EQ("ffffffffe000000001", fmt::format("{}", n2)); + bigint n3(max_value<uint64_t>()); + n3.square(); + EXPECT_EQ("fffffffffffffffe0000000000000001", fmt::format("{}", n3)); + bigint n4; + n4.assign_pow10(10); + EXPECT_EQ("2540be400", fmt::format("{}", n4)); +} + +TEST(BigIntTest, DivModAssignZeroDivisor) { + bigint zero(0); + EXPECT_THROW(bigint(0).divmod_assign(zero), assertion_failure); + EXPECT_THROW(bigint(42).divmod_assign(zero), assertion_failure); +} + +TEST(BigIntTest, DivModAssignSelf) { + bigint n(100); + EXPECT_THROW(n.divmod_assign(n), assertion_failure); +} + +TEST(BigIntTest, DivModAssignUnaligned) { + // (42 << 340) / pow(10, 100): + bigint n1(42); + n1 <<= 340; + bigint n2; + n2.assign_pow10(100); + int result = n1.divmod_assign(n2); + EXPECT_EQ(result, 9406); + EXPECT_EQ("10f8353019583bfc29ffc8f564e1b9f9d819dbb4cf783e4507eca1539220p96", + fmt::format("{}", n1)); +} + +TEST(BigIntTest, DivModAssign) { + // 100 / 10: + bigint n1(100); + int result = n1.divmod_assign(bigint(10)); + EXPECT_EQ(result, 10); + EXPECT_EQ("0", fmt::format("{}", n1)); + // pow(10, 100) / (42 << 320): + n1.assign_pow10(100); + result = n1.divmod_assign(bigint(42) <<= 320); + EXPECT_EQ(result, 111); + EXPECT_EQ("13ad2594c37ceb0b2784c4ce0bf38ace408e211a7caab24308a82e8f10p96", + fmt::format("{}", n1)); + // 42 / 100: + bigint n2(42); + n1.assign_pow10(2); + result = n2.divmod_assign(n1); + EXPECT_EQ(result, 0); + EXPECT_EQ("2a", fmt::format("{}", n2)); +} + +template <bool is_iec559> void run_double_tests() { + fmt::print("warning: double is not IEC559, skipping FP tests\n"); +} + +template <> void run_double_tests<true>() { + // Construct from double. + EXPECT_EQ(fp(1.23), fp(0x13ae147ae147aeu, -52)); +} + +TEST(FPTest, DoubleTests) { + run_double_tests<std::numeric_limits<double>::is_iec559>(); +} + +TEST(FPTest, Normalize) { + const auto v = fp(0xbeef, 42); + auto normalized = normalize(v); + EXPECT_EQ(0xbeef000000000000, normalized.f); + EXPECT_EQ(-6, normalized.e); +} + +TEST(FPTest, Multiply) { + auto v = fp(123ULL << 32, 4) * fp(56ULL << 32, 7); + EXPECT_EQ(v.f, 123u * 56u); + EXPECT_EQ(v.e, 4 + 7 + 64); + v = fp(123ULL << 32, 4) * fp(567ULL << 31, 8); + EXPECT_EQ(v.f, (123 * 567 + 1u) / 2); + EXPECT_EQ(v.e, 4 + 8 + 64); +} + +TEST(FPTest, GetCachedPower) { + using limits = std::numeric_limits<double>; + for (auto exp = limits::min_exponent; exp <= limits::max_exponent; ++exp) { + int dec_exp = 0; + auto fp = fmt::detail::get_cached_power(exp, dec_exp); + bigint exact, cache(fp.f); + if (dec_exp >= 0) { + exact.assign_pow10(dec_exp); + if (fp.e <= 0) + exact <<= -fp.e; + else + cache <<= fp.e; + exact.align(cache); + cache.align(exact); + auto exact_str = fmt::format("{}", exact); + auto cache_str = fmt::format("{}", cache); + EXPECT_EQ(exact_str.size(), cache_str.size()); + EXPECT_EQ(exact_str.substr(0, 15), cache_str.substr(0, 15)); + int diff = cache_str[15] - exact_str[15]; + if (diff == 1) + EXPECT_GT(exact_str[16], '8'); + else + EXPECT_EQ(diff, 0); + } else { + cache.assign_pow10(-dec_exp); + cache *= fp.f + 1; // Inexact check. + exact.assign(1); + exact <<= -fp.e; + exact.align(cache); + auto exact_str = fmt::format("{}", exact); + auto cache_str = fmt::format("{}", cache); + EXPECT_EQ(exact_str.size(), cache_str.size()); + EXPECT_EQ(exact_str.substr(0, 16), cache_str.substr(0, 16)); + } + } +} + +TEST(FPTest, DragonboxMaxK) { + using fmt::detail::dragonbox::floor_log10_pow2; + using float_info = fmt::detail::dragonbox::float_info<float>; + EXPECT_EQ(fmt::detail::const_check(float_info::max_k), + float_info::kappa - floor_log10_pow2(float_info::min_exponent - + float_info::significand_bits)); + using double_info = fmt::detail::dragonbox::float_info<double>; + EXPECT_EQ( + fmt::detail::const_check(double_info::max_k), + double_info::kappa - floor_log10_pow2(double_info::min_exponent - + double_info::significand_bits)); +} + +TEST(FPTest, GetRoundDirection) { + using fmt::detail::get_round_direction; + using fmt::detail::round_direction; + EXPECT_EQ(round_direction::down, get_round_direction(100, 50, 0)); + EXPECT_EQ(round_direction::up, get_round_direction(100, 51, 0)); + EXPECT_EQ(round_direction::down, get_round_direction(100, 40, 10)); + EXPECT_EQ(round_direction::up, get_round_direction(100, 60, 10)); + for (size_t i = 41; i < 60; ++i) + EXPECT_EQ(round_direction::unknown, get_round_direction(100, i, 10)); + uint64_t max = max_value<uint64_t>(); + EXPECT_THROW(get_round_direction(100, 100, 0), assertion_failure); + EXPECT_THROW(get_round_direction(100, 0, 100), assertion_failure); + EXPECT_THROW(get_round_direction(100, 0, 50), assertion_failure); + // Check that remainder + error doesn't overflow. + EXPECT_EQ(round_direction::up, get_round_direction(max, max - 1, 2)); + // Check that 2 * (remainder + error) doesn't overflow. + EXPECT_EQ(round_direction::unknown, + get_round_direction(max, max / 2 + 1, max / 2)); + // Check that remainder - error doesn't overflow. + EXPECT_EQ(round_direction::unknown, get_round_direction(100, 40, 41)); + // Check that 2 * (remainder - error) doesn't overflow. + EXPECT_EQ(round_direction::up, get_round_direction(max, max - 1, 1)); +} + +TEST(FPTest, FixedHandler) { + struct handler : fmt::detail::fixed_handler { + char buffer[10]; + handler(int prec = 0) : fmt::detail::fixed_handler() { + buf = buffer; + precision = prec; + } + }; + int exp = 0; + handler().on_digit('0', 100, 99, 0, exp, false); + EXPECT_THROW(handler().on_digit('0', 100, 100, 0, exp, false), + assertion_failure); + namespace digits = fmt::detail::digits; + EXPECT_EQ(handler(1).on_digit('0', 100, 10, 10, exp, false), digits::error); + // Check that divisor - error doesn't overflow. + EXPECT_EQ(handler(1).on_digit('0', 100, 10, 101, exp, false), digits::error); + // Check that 2 * error doesn't overflow. + uint64_t max = max_value<uint64_t>(); + EXPECT_EQ(handler(1).on_digit('0', max, 10, max - 1, exp, false), + digits::error); +} + +TEST(FPTest, GrisuFormatCompilesWithNonIEEEDouble) { + fmt::memory_buffer buf; + format_float(0.42, -1, fmt::detail::float_specs(), buf); +} + +template <typename T> struct value_extractor { + T operator()(T value) { return value; } + + template <typename U> FMT_NORETURN T operator()(U) { + throw std::runtime_error(fmt::format("invalid type {}", typeid(U).name())); + } + +#if FMT_USE_INT128 + // Apple Clang does not define typeid for __int128_t and __uint128_t. + FMT_NORETURN T operator()(fmt::detail::int128_t) { + throw std::runtime_error("invalid type __int128_t"); + } + + FMT_NORETURN T operator()(fmt::detail::uint128_t) { + throw std::runtime_error("invalid type __uint128_t"); + } +#endif +}; + +TEST(FormatTest, ArgConverter) { + long long value = max_value<long long>(); + auto arg = fmt::detail::make_arg<fmt::format_context>(value); + fmt::visit_format_arg( + fmt::detail::arg_converter<long long, fmt::format_context>(arg, 'd'), + arg); + EXPECT_EQ(value, fmt::visit_format_arg(value_extractor<long long>(), arg)); +} + +TEST(FormatTest, StrError) { + char* message = nullptr; + char buffer[BUFFER_SIZE]; + EXPECT_ASSERT(fmt::detail::safe_strerror(EDOM, message = nullptr, 0), + "invalid buffer"); + EXPECT_ASSERT(fmt::detail::safe_strerror(EDOM, message = buffer, 0), + "invalid buffer"); + buffer[0] = 'x'; +#if defined(_GNU_SOURCE) && !defined(__COVERITY__) + // Use invalid error code to make sure that safe_strerror returns an error + // message in the buffer rather than a pointer to a static string. + int error_code = -1; +#else + int error_code = EDOM; +#endif + + int result = + fmt::detail::safe_strerror(error_code, message = buffer, BUFFER_SIZE); + EXPECT_EQ(result, 0); + size_t message_size = std::strlen(message); + EXPECT_GE(BUFFER_SIZE - 1u, message_size); + EXPECT_EQ(get_system_error(error_code), message); + + // safe_strerror never uses buffer on MinGW. +#if !defined(__MINGW32__) && !defined(__sun) + result = + fmt::detail::safe_strerror(error_code, message = buffer, message_size); + EXPECT_EQ(ERANGE, result); + result = fmt::detail::safe_strerror(error_code, message = buffer, 1); + EXPECT_EQ(buffer, message); // Message should point to buffer. + EXPECT_EQ(ERANGE, result); + EXPECT_STREQ("", message); +#endif +} + +TEST(FormatTest, FormatErrorCode) { + std::string msg = "error 42", sep = ": "; + { + fmt::memory_buffer buffer; + format_to(buffer, "garbage"); + fmt::detail::format_error_code(buffer, 42, "test"); + EXPECT_EQ("test: " + msg, to_string(buffer)); + } + { + fmt::memory_buffer buffer; + std::string prefix(fmt::inline_buffer_size - msg.size() - sep.size() + 1, + 'x'); + fmt::detail::format_error_code(buffer, 42, prefix); + EXPECT_EQ(msg, to_string(buffer)); + } + int codes[] = {42, -1}; + for (size_t i = 0, n = sizeof(codes) / sizeof(*codes); i < n; ++i) { + // Test maximum buffer size. + msg = fmt::format("error {}", codes[i]); + fmt::memory_buffer buffer; + std::string prefix(fmt::inline_buffer_size - msg.size() - sep.size(), 'x'); + fmt::detail::format_error_code(buffer, codes[i], prefix); + EXPECT_EQ(prefix + sep + msg, to_string(buffer)); + size_t size = fmt::inline_buffer_size; + EXPECT_EQ(size, buffer.size()); + buffer.resize(0); + // Test with a message that doesn't fit into the buffer. + prefix += 'x'; + fmt::detail::format_error_code(buffer, codes[i], prefix); + EXPECT_EQ(msg, to_string(buffer)); + } +} + +TEST(FormatTest, CountCodePoints) { + EXPECT_EQ(4, + fmt::detail::count_code_points( + fmt::basic_string_view<fmt::detail::char8_type>( + reinterpret_cast<const fmt::detail::char8_type*>("ŃжОĐș")))); +} + +// Tests fmt::detail::count_digits for integer type Int. +template <typename Int> void test_count_digits() { + for (Int i = 0; i < 10; ++i) EXPECT_EQ(1u, fmt::detail::count_digits(i)); + for (Int i = 1, n = 1, end = max_value<Int>() / 10; n <= end; ++i) { + n *= 10; + EXPECT_EQ(i, fmt::detail::count_digits(n - 1)); + EXPECT_EQ(i + 1, fmt::detail::count_digits(n)); + } +} + +TEST(UtilTest, CountDigits) { + test_count_digits<uint32_t>(); + test_count_digits<uint64_t>(); +} + +TEST(UtilTest, WriteFallbackUIntPtr) { + std::string s; + fmt::detail::write_ptr<char>( + std::back_inserter(s), + fmt::detail::fallback_uintptr(reinterpret_cast<void*>(0xface)), nullptr); + EXPECT_EQ(s, "0xface"); +} + +#ifdef _WIN32 +TEST(UtilTest, WriteConsoleSignature) { + decltype(WriteConsoleW)* p = fmt::detail::WriteConsoleW; + (void)p; +} +#endif diff --git a/contrib/libs/fmt/test/format-impl-test/ya.make b/contrib/libs/fmt/test/format-impl-test/ya.make new file mode 100644 index 0000000000..f8612f4120 --- /dev/null +++ b/contrib/libs/fmt/test/format-impl-test/ya.make @@ -0,0 +1,37 @@ +# Generated by devtools/yamaker. + +GTEST() + +WITHOUT_LICENSE_TEXTS() + +OWNER( + orivej + g:cpp-contrib +) + +LICENSE(MIT) + +PEERDIR( + contrib/libs/fmt + contrib/libs/fmt/test +) + +NO_COMPILER_WARNINGS() + +NO_UTIL() + +CFLAGS( + -DFMT_LOCALE + -DFMT_SHARED + -DGTEST_HAS_STD_WSTRING=1 + -DGTEST_LANG_CXX11=0 + -D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING=1 +) + +SRCDIR(contrib/libs/fmt/test) + +SRCS( + format-impl-test.cc +) + +END() diff --git a/contrib/libs/fmt/test/format-test.cc b/contrib/libs/fmt/test/format-test.cc new file mode 100644 index 0000000000..6164ad60d6 --- /dev/null +++ b/contrib/libs/fmt/test/format-test.cc @@ -0,0 +1,2495 @@ +// Formatting library for C++ - formatting library tests +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#include <stdint.h> + +#include <cctype> +#include <cfloat> +#include <climits> +#include <cmath> +#include <cstring> +#include <list> +#include <memory> +#include <string> + +// Check if fmt/format.h compiles with windows.h included before it. +#ifdef _WIN32 +# include <windows.h> +#endif + +// Check if fmt/format.h compiles with the X11 index macro defined. +#define index(x, y) no nice things + +#include "fmt/format.h" + +#undef index + +#include <gmock/gmock.h> +#include "gtest-extra.h" +#include "mock-allocator.h" +#include "util.h" + +#undef ERROR + +using fmt::basic_memory_buffer; +using fmt::format; +using fmt::format_error; +using fmt::memory_buffer; +using fmt::string_view; +using fmt::wmemory_buffer; +using fmt::wstring_view; +using fmt::detail::max_value; + +using testing::Return; +using testing::StrictMock; + +namespace { + +#if !FMT_GCC_VERSION || FMT_GCC_VERSION >= 408 +template <typename Char, typename T> bool check_enabled_formatter() { + static_assert(std::is_default_constructible<fmt::formatter<T, Char>>::value, + ""); + return true; +} + +template <typename Char, typename... T> void check_enabled_formatters() { + auto dummy = {check_enabled_formatter<Char, T>()...}; + (void)dummy; +} + +TEST(FormatterTest, TestFormattersEnabled) { + check_enabled_formatters<char, bool, char, signed char, unsigned char, short, + unsigned short, int, unsigned, long, unsigned long, + long long, unsigned long long, float, double, + long double, void*, const void*, char*, const char*, + std::string, std::nullptr_t>(); + check_enabled_formatters<wchar_t, bool, wchar_t, signed char, unsigned char, + short, unsigned short, int, unsigned, long, + unsigned long, long long, unsigned long long, float, + double, long double, void*, const void*, wchar_t*, + const wchar_t*, std::wstring, std::nullptr_t>(); +} +#endif + +// Format value using the standard library. +template <typename Char, typename T> +void std_format(const T& value, std::basic_string<Char>& result) { + std::basic_ostringstream<Char> os; + os << value; + result = os.str(); +} + +#ifdef __MINGW32__ +// Workaround a bug in formatting long double in MinGW. +void std_format(long double value, std::string& result) { + char buffer[100]; + safe_sprintf(buffer, "%Lg", value); + result = buffer; +} +void std_format(long double value, std::wstring& result) { + wchar_t buffer[100]; + swprintf(buffer, L"%Lg", value); + result = buffer; +} +#endif +} // namespace + +struct uint32_pair { + uint32_t u[2]; +}; + +TEST(UtilTest, BitCast) { + auto s = fmt::detail::bit_cast<uint32_pair>(uint64_t{42}); + EXPECT_EQ(fmt::detail::bit_cast<uint64_t>(s), 42ull); + s = fmt::detail::bit_cast<uint32_pair>(uint64_t(~0ull)); + EXPECT_EQ(fmt::detail::bit_cast<uint64_t>(s), ~0ull); +} + +TEST(UtilTest, Increment) { + char s[10] = "123"; + increment(s); + EXPECT_STREQ("124", s); + s[2] = '8'; + increment(s); + EXPECT_STREQ("129", s); + increment(s); + EXPECT_STREQ("130", s); + s[1] = s[2] = '9'; + increment(s); + EXPECT_STREQ("200", s); +} + +TEST(UtilTest, ParseNonnegativeInt) { + if (max_value<int>() != static_cast<int>(static_cast<unsigned>(1) << 31)) { + fmt::print("Skipping parse_nonnegative_int test\n"); + return; + } + fmt::string_view s = "10000000000"; + auto begin = s.begin(), end = s.end(); + EXPECT_THROW_MSG( + parse_nonnegative_int(begin, end, fmt::detail::error_handler()), + fmt::format_error, "number is too big"); + s = "2147483649"; + begin = s.begin(); + end = s.end(); + EXPECT_THROW_MSG( + parse_nonnegative_int(begin, end, fmt::detail::error_handler()), + fmt::format_error, "number is too big"); +} + +TEST(IteratorTest, CountingIterator) { + fmt::detail::counting_iterator it; + auto prev = it++; + EXPECT_EQ(prev.count(), 0); + EXPECT_EQ(it.count(), 1); + EXPECT_EQ((it + 41).count(), 42); +} + +TEST(IteratorTest, TruncatingIterator) { + char* p = nullptr; + fmt::detail::truncating_iterator<char*> it(p, 3); + auto prev = it++; + EXPECT_EQ(prev.base(), p); + EXPECT_EQ(it.base(), p + 1); +} + +TEST(IteratorTest, TruncatingBackInserter) { + std::string buffer; + auto bi = std::back_inserter(buffer); + fmt::detail::truncating_iterator<decltype(bi)> it(bi, 2); + *it++ = '4'; + *it++ = '2'; + *it++ = '1'; + EXPECT_EQ(buffer.size(), 2); + EXPECT_EQ(buffer, "42"); +} + +TEST(IteratorTest, IsOutputIterator) { + EXPECT_TRUE((fmt::detail::is_output_iterator<char*, char>::value)); + EXPECT_FALSE((fmt::detail::is_output_iterator<const char*, char>::value)); + EXPECT_FALSE((fmt::detail::is_output_iterator<std::string, char>::value)); + EXPECT_TRUE( + (fmt::detail::is_output_iterator<std::back_insert_iterator<std::string>, + char>::value)); + EXPECT_TRUE( + (fmt::detail::is_output_iterator<std::string::iterator, char>::value)); + EXPECT_FALSE((fmt::detail::is_output_iterator<std::string::const_iterator, + char>::value)); + EXPECT_FALSE((fmt::detail::is_output_iterator<std::list<char>, char>::value)); + EXPECT_TRUE(( + fmt::detail::is_output_iterator<std::list<char>::iterator, char>::value)); + EXPECT_FALSE((fmt::detail::is_output_iterator<std::list<char>::const_iterator, + char>::value)); + EXPECT_FALSE((fmt::detail::is_output_iterator<uint32_pair, char>::value)); +} + +TEST(MemoryBufferTest, Ctor) { + basic_memory_buffer<char, 123> buffer; + EXPECT_EQ(static_cast<size_t>(0), buffer.size()); + EXPECT_EQ(123u, buffer.capacity()); +} + +static void check_forwarding(mock_allocator<int>& alloc, + allocator_ref<mock_allocator<int>>& ref) { + int mem; + // Check if value_type is properly defined. + allocator_ref<mock_allocator<int>>::value_type* ptr = &mem; + // Check forwarding. + EXPECT_CALL(alloc, allocate(42)).WillOnce(testing::Return(ptr)); + ref.allocate(42); + EXPECT_CALL(alloc, deallocate(ptr, 42)); + ref.deallocate(ptr, 42); +} + +TEST(AllocatorTest, allocator_ref) { + StrictMock<mock_allocator<int>> alloc; + typedef allocator_ref<mock_allocator<int>> test_allocator_ref; + test_allocator_ref ref(&alloc); + // Check if allocator_ref forwards to the underlying allocator. + check_forwarding(alloc, ref); + test_allocator_ref ref2(ref); + check_forwarding(alloc, ref2); + test_allocator_ref ref3; + EXPECT_EQ(nullptr, ref3.get()); + ref3 = ref; + check_forwarding(alloc, ref3); +} + +typedef allocator_ref<std::allocator<char>> TestAllocator; + +static void check_move_buffer( + const char* str, basic_memory_buffer<char, 5, TestAllocator>& buffer) { + std::allocator<char>* alloc = buffer.get_allocator().get(); + basic_memory_buffer<char, 5, TestAllocator> buffer2(std::move(buffer)); + // Move shouldn't destroy the inline content of the first buffer. + EXPECT_EQ(str, std::string(&buffer[0], buffer.size())); + EXPECT_EQ(str, std::string(&buffer2[0], buffer2.size())); + EXPECT_EQ(5u, buffer2.capacity()); + // Move should transfer allocator. + EXPECT_EQ(nullptr, buffer.get_allocator().get()); + EXPECT_EQ(alloc, buffer2.get_allocator().get()); +} + +TEST(MemoryBufferTest, MoveCtorInlineBuffer) { + std::allocator<char> alloc; + basic_memory_buffer<char, 5, TestAllocator> buffer((TestAllocator(&alloc))); + const char test[] = "test"; + buffer.append(string_view(test, 4)); + check_move_buffer("test", buffer); + // Adding one more character fills the inline buffer, but doesn't cause + // dynamic allocation. + buffer.push_back('a'); + check_move_buffer("testa", buffer); +} + +TEST(MemoryBufferTest, MoveCtorDynamicBuffer) { + std::allocator<char> alloc; + basic_memory_buffer<char, 4, TestAllocator> buffer((TestAllocator(&alloc))); + const char test[] = "test"; + buffer.append(test, test + 4); + const char* inline_buffer_ptr = &buffer[0]; + // Adding one more character causes the content to move from the inline to + // a dynamically allocated buffer. + buffer.push_back('a'); + basic_memory_buffer<char, 4, TestAllocator> buffer2(std::move(buffer)); + // Move should rip the guts of the first buffer. + EXPECT_EQ(inline_buffer_ptr, &buffer[0]); + EXPECT_EQ("testa", std::string(&buffer2[0], buffer2.size())); + EXPECT_GT(buffer2.capacity(), 4u); +} + +static void check_move_assign_buffer(const char* str, + basic_memory_buffer<char, 5>& buffer) { + basic_memory_buffer<char, 5> buffer2; + buffer2 = std::move(buffer); + // Move shouldn't destroy the inline content of the first buffer. + EXPECT_EQ(str, std::string(&buffer[0], buffer.size())); + EXPECT_EQ(str, std::string(&buffer2[0], buffer2.size())); + EXPECT_EQ(5u, buffer2.capacity()); +} + +TEST(MemoryBufferTest, MoveAssignment) { + basic_memory_buffer<char, 5> buffer; + const char test[] = "test"; + buffer.append(test, test + 4); + check_move_assign_buffer("test", buffer); + // Adding one more character fills the inline buffer, but doesn't cause + // dynamic allocation. + buffer.push_back('a'); + check_move_assign_buffer("testa", buffer); + const char* inline_buffer_ptr = &buffer[0]; + // Adding one more character causes the content to move from the inline to + // a dynamically allocated buffer. + buffer.push_back('b'); + basic_memory_buffer<char, 5> buffer2; + buffer2 = std::move(buffer); + // Move should rip the guts of the first buffer. + EXPECT_EQ(inline_buffer_ptr, &buffer[0]); + EXPECT_EQ("testab", std::string(&buffer2[0], buffer2.size())); + EXPECT_GT(buffer2.capacity(), 5u); +} + +TEST(MemoryBufferTest, Grow) { + typedef allocator_ref<mock_allocator<int>> Allocator; + mock_allocator<int> alloc; + basic_memory_buffer<int, 10, Allocator> buffer((Allocator(&alloc))); + buffer.resize(7); + using fmt::detail::to_unsigned; + for (int i = 0; i < 7; ++i) buffer[to_unsigned(i)] = i * i; + EXPECT_EQ(10u, buffer.capacity()); + int mem[20]; + mem[7] = 0xdead; + EXPECT_CALL(alloc, allocate(20)).WillOnce(Return(mem)); + buffer.try_reserve(20); + EXPECT_EQ(20u, buffer.capacity()); + // Check if size elements have been copied + for (int i = 0; i < 7; ++i) EXPECT_EQ(i * i, buffer[to_unsigned(i)]); + // and no more than that. + EXPECT_EQ(0xdead, buffer[7]); + EXPECT_CALL(alloc, deallocate(mem, 20)); +} + +TEST(MemoryBufferTest, Allocator) { + typedef allocator_ref<mock_allocator<char>> TestAllocator; + basic_memory_buffer<char, 10, TestAllocator> buffer; + EXPECT_EQ(nullptr, buffer.get_allocator().get()); + StrictMock<mock_allocator<char>> alloc; + char mem; + { + basic_memory_buffer<char, 10, TestAllocator> buffer2( + (TestAllocator(&alloc))); + EXPECT_EQ(&alloc, buffer2.get_allocator().get()); + size_t size = 2 * fmt::inline_buffer_size; + EXPECT_CALL(alloc, allocate(size)).WillOnce(Return(&mem)); + buffer2.reserve(size); + EXPECT_CALL(alloc, deallocate(&mem, size)); + } +} + +TEST(MemoryBufferTest, ExceptionInDeallocate) { + typedef allocator_ref<mock_allocator<char>> TestAllocator; + StrictMock<mock_allocator<char>> alloc; + basic_memory_buffer<char, 10, TestAllocator> buffer((TestAllocator(&alloc))); + size_t size = 2 * fmt::inline_buffer_size; + std::vector<char> mem(size); + { + EXPECT_CALL(alloc, allocate(size)).WillOnce(Return(&mem[0])); + buffer.resize(size); + std::fill(&buffer[0], &buffer[0] + size, 'x'); + } + std::vector<char> mem2(2 * size); + { + EXPECT_CALL(alloc, allocate(2 * size)).WillOnce(Return(&mem2[0])); + std::exception e; + EXPECT_CALL(alloc, deallocate(&mem[0], size)).WillOnce(testing::Throw(e)); + EXPECT_THROW(buffer.reserve(2 * size), std::exception); + EXPECT_EQ(&mem2[0], &buffer[0]); + // Check that the data has been copied. + for (size_t i = 0; i < size; ++i) EXPECT_EQ('x', buffer[i]); + } + EXPECT_CALL(alloc, deallocate(&mem2[0], 2 * size)); +} + +TEST(UtilTest, UTF8ToUTF16) { + fmt::detail::utf8_to_utf16 u("Đ»ĐŸŃĐ°ĐŽĐșĐ°"); + EXPECT_EQ(L"\x043B\x043E\x0448\x0430\x0434\x043A\x0430", u.str()); + EXPECT_EQ(7, u.size()); + // U+10437 { DESERET SMALL LETTER YEE } + EXPECT_EQ(L"\xD801\xDC37", fmt::detail::utf8_to_utf16("đ·").str()); + EXPECT_THROW_MSG(fmt::detail::utf8_to_utf16("\xc3\x28"), std::runtime_error, + "invalid utf8"); + EXPECT_THROW_MSG(fmt::detail::utf8_to_utf16(fmt::string_view("Đ»", 1)), + std::runtime_error, "invalid utf8"); + EXPECT_EQ(L"123456", fmt::detail::utf8_to_utf16("123456").str()); +} + +TEST(UtilTest, UTF8ToUTF16EmptyString) { + std::string s = ""; + fmt::detail::utf8_to_utf16 u(s.c_str()); + EXPECT_EQ(L"", u.str()); + EXPECT_EQ(s.size(), u.size()); +} + +TEST(UtilTest, FormatSystemError) { + fmt::memory_buffer message; + fmt::format_system_error(message, EDOM, "test"); + EXPECT_EQ(fmt::format("test: {}", get_system_error(EDOM)), + to_string(message)); + message = fmt::memory_buffer(); + + // Check if std::allocator throws on allocating max size_t / 2 chars. + size_t max_size = max_value<size_t>() / 2; + bool throws_on_alloc = false; + try { + std::allocator<char> alloc; + alloc.deallocate(alloc.allocate(max_size), max_size); + } catch (const std::bad_alloc&) { + throws_on_alloc = true; + } + if (!throws_on_alloc) { + fmt::print("warning: std::allocator allocates {} chars", max_size); + return; + } + fmt::format_system_error(message, EDOM, fmt::string_view(nullptr, max_size)); + EXPECT_EQ(fmt::format("error {}", EDOM), to_string(message)); +} + +TEST(UtilTest, SystemError) { + fmt::system_error e(EDOM, "test"); + EXPECT_EQ(fmt::format("test: {}", get_system_error(EDOM)), e.what()); + EXPECT_EQ(EDOM, e.error_code()); + + fmt::system_error error(0, ""); + try { + throw fmt::system_error(EDOM, "test {}", "error"); + } catch (const fmt::system_error& e) { + error = e; + } + fmt::memory_buffer message; + fmt::format_system_error(message, EDOM, "test error"); + EXPECT_EQ(to_string(message), error.what()); + EXPECT_EQ(EDOM, error.error_code()); +} + +TEST(UtilTest, ReportSystemError) { + fmt::memory_buffer out; + fmt::format_system_error(out, EDOM, "test error"); + out.push_back('\n'); + EXPECT_WRITE(stderr, fmt::report_system_error(EDOM, "test error"), + to_string(out)); +} + +TEST(StringViewTest, Ctor) { + EXPECT_STREQ("abc", string_view("abc").data()); + EXPECT_EQ(3u, string_view("abc").size()); + + EXPECT_STREQ("defg", string_view(std::string("defg")).data()); + EXPECT_EQ(4u, string_view(std::string("defg")).size()); +} + +TEST(FormatToTest, FormatWithoutArgs) { + std::string s; + fmt::format_to(std::back_inserter(s), "test"); + EXPECT_EQ("test", s); +} + +TEST(FormatToTest, Format) { + std::string s; + fmt::format_to(std::back_inserter(s), "part{0}", 1); + EXPECT_EQ("part1", s); + fmt::format_to(std::back_inserter(s), "part{0}", 2); + EXPECT_EQ("part1part2", s); +} + +TEST(FormatToTest, WideString) { + std::vector<wchar_t> buf; + fmt::format_to(std::back_inserter(buf), L"{}{}", 42, L'\0'); + EXPECT_STREQ(buf.data(), L"42"); +} + +TEST(FormatToTest, FormatToMemoryBuffer) { + fmt::basic_memory_buffer<char, 100> buffer; + fmt::format_to(buffer, "{}", "foo"); + EXPECT_EQ("foo", to_string(buffer)); + fmt::wmemory_buffer wbuffer; + fmt::format_to(wbuffer, L"{}", L"foo"); + EXPECT_EQ(L"foo", to_string(wbuffer)); +} + +TEST(FormatterTest, Escape) { + EXPECT_EQ("{", format("{{")); + EXPECT_EQ("before {", format("before {{")); + EXPECT_EQ("{ after", format("{{ after")); + EXPECT_EQ("before { after", format("before {{ after")); + + EXPECT_EQ("}", format("}}")); + EXPECT_EQ("before }", format("before }}")); + EXPECT_EQ("} after", format("}} after")); + EXPECT_EQ("before } after", format("before }} after")); + + EXPECT_EQ("{}", format("{{}}")); + EXPECT_EQ("{42}", format("{{{0}}}", 42)); +} + +TEST(FormatterTest, UnmatchedBraces) { + EXPECT_THROW_MSG(format("{"), format_error, "invalid format string"); + EXPECT_THROW_MSG(format("}"), format_error, "unmatched '}' in format string"); + EXPECT_THROW_MSG(format("{0{}"), format_error, "invalid format string"); +} + +TEST(FormatterTest, NoArgs) { EXPECT_EQ("test", format("test")); } + +TEST(FormatterTest, ArgsInDifferentPositions) { + EXPECT_EQ("42", format("{0}", 42)); + EXPECT_EQ("before 42", format("before {0}", 42)); + EXPECT_EQ("42 after", format("{0} after", 42)); + EXPECT_EQ("before 42 after", format("before {0} after", 42)); + EXPECT_EQ("answer = 42", format("{0} = {1}", "answer", 42)); + EXPECT_EQ("42 is the answer", format("{1} is the {0}", "answer", 42)); + EXPECT_EQ("abracadabra", format("{0}{1}{0}", "abra", "cad")); +} + +TEST(FormatterTest, ArgErrors) { + EXPECT_THROW_MSG(format("{"), format_error, "invalid format string"); + EXPECT_THROW_MSG(format("{?}"), format_error, "invalid format string"); + EXPECT_THROW_MSG(format("{0"), format_error, "invalid format string"); + EXPECT_THROW_MSG(format("{0}"), format_error, "argument not found"); + EXPECT_THROW_MSG(format("{00}", 42), format_error, "invalid format string"); + + char format_str[BUFFER_SIZE]; + safe_sprintf(format_str, "{%u", INT_MAX); + EXPECT_THROW_MSG(format(format_str), format_error, "invalid format string"); + safe_sprintf(format_str, "{%u}", INT_MAX); + EXPECT_THROW_MSG(format(format_str), format_error, "argument not found"); + + safe_sprintf(format_str, "{%u", INT_MAX + 1u); + EXPECT_THROW_MSG(format(format_str), format_error, "number is too big"); + safe_sprintf(format_str, "{%u}", INT_MAX + 1u); + EXPECT_THROW_MSG(format(format_str), format_error, "number is too big"); +} + +template <int N> struct TestFormat { + template <typename... Args> + static std::string format(fmt::string_view format_str, const Args&... args) { + return TestFormat<N - 1>::format(format_str, N - 1, args...); + } +}; + +template <> struct TestFormat<0> { + template <typename... Args> + static std::string format(fmt::string_view format_str, const Args&... args) { + return fmt::format(format_str, args...); + } +}; + +TEST(FormatterTest, ManyArgs) { + EXPECT_EQ("19", TestFormat<20>::format("{19}")); + EXPECT_THROW_MSG(TestFormat<20>::format("{20}"), format_error, + "argument not found"); + EXPECT_THROW_MSG(TestFormat<21>::format("{21}"), format_error, + "argument not found"); + enum { max_packed_args = fmt::detail::max_packed_args }; + std::string format_str = fmt::format("{{{}}}", max_packed_args + 1); + EXPECT_THROW_MSG(TestFormat<max_packed_args>::format(format_str), + format_error, "argument not found"); +} + +TEST(FormatterTest, NamedArg) { + EXPECT_EQ("1/a/A", format("{_1}/{a_}/{A_}", fmt::arg("a_", 'a'), + fmt::arg("A_", "A"), fmt::arg("_1", 1))); + EXPECT_EQ(" -42", format("{0:{width}}", -42, fmt::arg("width", 4))); + EXPECT_EQ("st", format("{0:.{precision}}", "str", fmt::arg("precision", 2))); + EXPECT_EQ("1 2", format("{} {two}", 1, fmt::arg("two", 2))); + EXPECT_EQ("42", format("{c}", fmt::arg("a", 0), fmt::arg("b", 0), + fmt::arg("c", 42), fmt::arg("d", 0), fmt::arg("e", 0), + fmt::arg("f", 0), fmt::arg("g", 0), fmt::arg("h", 0), + fmt::arg("i", 0), fmt::arg("j", 0), fmt::arg("k", 0), + fmt::arg("l", 0), fmt::arg("m", 0), fmt::arg("n", 0), + fmt::arg("o", 0), fmt::arg("p", 0))); + EXPECT_THROW_MSG(format("{a}"), format_error, "argument not found"); + EXPECT_THROW_MSG(format("{a}", 42), format_error, "argument not found"); +} + +TEST(FormatterTest, AutoArgIndex) { + EXPECT_EQ("abc", format("{}{}{}", 'a', 'b', 'c')); + EXPECT_THROW_MSG(format("{0}{}", 'a', 'b'), format_error, + "cannot switch from manual to automatic argument indexing"); + EXPECT_THROW_MSG(format("{}{0}", 'a', 'b'), format_error, + "cannot switch from automatic to manual argument indexing"); + EXPECT_EQ("1.2", format("{:.{}}", 1.2345, 2)); + EXPECT_THROW_MSG(format("{0}:.{}", 1.2345, 2), format_error, + "cannot switch from manual to automatic argument indexing"); + EXPECT_THROW_MSG(format("{:.{0}}", 1.2345, 2), format_error, + "cannot switch from automatic to manual argument indexing"); + EXPECT_THROW_MSG(format("{}"), format_error, "argument not found"); +} + +TEST(FormatterTest, EmptySpecs) { EXPECT_EQ("42", format("{0:}", 42)); } + +TEST(FormatterTest, LeftAlign) { + EXPECT_EQ("42 ", format("{0:<4}", 42)); + EXPECT_EQ("42 ", format("{0:<4o}", 042)); + EXPECT_EQ("42 ", format("{0:<4x}", 0x42)); + EXPECT_EQ("-42 ", format("{0:<5}", -42)); + EXPECT_EQ("42 ", format("{0:<5}", 42u)); + EXPECT_EQ("-42 ", format("{0:<5}", -42l)); + EXPECT_EQ("42 ", format("{0:<5}", 42ul)); + EXPECT_EQ("-42 ", format("{0:<5}", -42ll)); + EXPECT_EQ("42 ", format("{0:<5}", 42ull)); + EXPECT_EQ("-42 ", format("{0:<5}", -42.0)); + EXPECT_EQ("-42 ", format("{0:<5}", -42.0l)); + EXPECT_EQ("c ", format("{0:<5}", 'c')); + EXPECT_EQ("abc ", format("{0:<5}", "abc")); + EXPECT_EQ("0xface ", format("{0:<8}", reinterpret_cast<void*>(0xface))); +} + +TEST(FormatterTest, RightAlign) { + EXPECT_EQ(" 42", format("{0:>4}", 42)); + EXPECT_EQ(" 42", format("{0:>4o}", 042)); + EXPECT_EQ(" 42", format("{0:>4x}", 0x42)); + EXPECT_EQ(" -42", format("{0:>5}", -42)); + EXPECT_EQ(" 42", format("{0:>5}", 42u)); + EXPECT_EQ(" -42", format("{0:>5}", -42l)); + EXPECT_EQ(" 42", format("{0:>5}", 42ul)); + EXPECT_EQ(" -42", format("{0:>5}", -42ll)); + EXPECT_EQ(" 42", format("{0:>5}", 42ull)); + EXPECT_EQ(" -42", format("{0:>5}", -42.0)); + EXPECT_EQ(" -42", format("{0:>5}", -42.0l)); + EXPECT_EQ(" c", format("{0:>5}", 'c')); + EXPECT_EQ(" abc", format("{0:>5}", "abc")); + EXPECT_EQ(" 0xface", format("{0:>8}", reinterpret_cast<void*>(0xface))); +} + +#if FMT_DEPRECATED_NUMERIC_ALIGN +TEST(FormatterTest, NumericAlign) { EXPECT_EQ("0042", format("{0:=4}", 42)); } +#endif + +TEST(FormatterTest, CenterAlign) { + EXPECT_EQ(" 42 ", format("{0:^5}", 42)); + EXPECT_EQ(" 42 ", format("{0:^5o}", 042)); + EXPECT_EQ(" 42 ", format("{0:^5x}", 0x42)); + EXPECT_EQ(" -42 ", format("{0:^5}", -42)); + EXPECT_EQ(" 42 ", format("{0:^5}", 42u)); + EXPECT_EQ(" -42 ", format("{0:^5}", -42l)); + EXPECT_EQ(" 42 ", format("{0:^5}", 42ul)); + EXPECT_EQ(" -42 ", format("{0:^5}", -42ll)); + EXPECT_EQ(" 42 ", format("{0:^5}", 42ull)); + EXPECT_EQ(" -42 ", format("{0:^5}", -42.0)); + EXPECT_EQ(" -42 ", format("{0:^5}", -42.0l)); + EXPECT_EQ(" c ", format("{0:^5}", 'c')); + EXPECT_EQ(" abc ", format("{0:^6}", "abc")); + EXPECT_EQ(" 0xface ", format("{0:^8}", reinterpret_cast<void*>(0xface))); +} + +TEST(FormatterTest, Fill) { + EXPECT_THROW_MSG(format("{0:{<5}", 'c'), format_error, + "invalid fill character '{'"); + EXPECT_THROW_MSG(format("{0:{<5}}", 'c'), format_error, + "invalid fill character '{'"); + EXPECT_EQ("**42", format("{0:*>4}", 42)); + EXPECT_EQ("**-42", format("{0:*>5}", -42)); + EXPECT_EQ("***42", format("{0:*>5}", 42u)); + EXPECT_EQ("**-42", format("{0:*>5}", -42l)); + EXPECT_EQ("***42", format("{0:*>5}", 42ul)); + EXPECT_EQ("**-42", format("{0:*>5}", -42ll)); + EXPECT_EQ("***42", format("{0:*>5}", 42ull)); + EXPECT_EQ("**-42", format("{0:*>5}", -42.0)); + EXPECT_EQ("**-42", format("{0:*>5}", -42.0l)); + EXPECT_EQ("c****", format("{0:*<5}", 'c')); + EXPECT_EQ("abc**", format("{0:*<5}", "abc")); + EXPECT_EQ("**0xface", format("{0:*>8}", reinterpret_cast<void*>(0xface))); + EXPECT_EQ("foo=", format("{:}=", "foo")); + EXPECT_EQ(std::string("\0\0\0*", 4), format(string_view("{:\0>4}", 6), '*')); + EXPECT_EQ("жж42", format("{0:ж>4}", 42)); + EXPECT_THROW_MSG(format("{:\x80\x80\x80\x80\x80>}", 0), format_error, + "missing '}' in format string"); +} + +TEST(FormatterTest, PlusSign) { + EXPECT_EQ("+42", format("{0:+}", 42)); + EXPECT_EQ("-42", format("{0:+}", -42)); + EXPECT_EQ("+42", format("{0:+}", 42)); + EXPECT_THROW_MSG(format("{0:+}", 42u), format_error, + "format specifier requires signed argument"); + EXPECT_EQ("+42", format("{0:+}", 42l)); + EXPECT_THROW_MSG(format("{0:+}", 42ul), format_error, + "format specifier requires signed argument"); + EXPECT_EQ("+42", format("{0:+}", 42ll)); + EXPECT_THROW_MSG(format("{0:+}", 42ull), format_error, + "format specifier requires signed argument"); + EXPECT_EQ("+42", format("{0:+}", 42.0)); + EXPECT_EQ("+42", format("{0:+}", 42.0l)); + EXPECT_THROW_MSG(format("{0:+", 'c'), format_error, + "missing '}' in format string"); + EXPECT_THROW_MSG(format("{0:+}", 'c'), format_error, + "invalid format specifier for char"); + EXPECT_THROW_MSG(format("{0:+}", "abc"), format_error, + "format specifier requires numeric argument"); + EXPECT_THROW_MSG(format("{0:+}", reinterpret_cast<void*>(0x42)), format_error, + "format specifier requires numeric argument"); +} + +TEST(FormatterTest, MinusSign) { + EXPECT_EQ("42", format("{0:-}", 42)); + EXPECT_EQ("-42", format("{0:-}", -42)); + EXPECT_EQ("42", format("{0:-}", 42)); + EXPECT_THROW_MSG(format("{0:-}", 42u), format_error, + "format specifier requires signed argument"); + EXPECT_EQ("42", format("{0:-}", 42l)); + EXPECT_THROW_MSG(format("{0:-}", 42ul), format_error, + "format specifier requires signed argument"); + EXPECT_EQ("42", format("{0:-}", 42ll)); + EXPECT_THROW_MSG(format("{0:-}", 42ull), format_error, + "format specifier requires signed argument"); + EXPECT_EQ("42", format("{0:-}", 42.0)); + EXPECT_EQ("42", format("{0:-}", 42.0l)); + EXPECT_THROW_MSG(format("{0:-", 'c'), format_error, + "missing '}' in format string"); + EXPECT_THROW_MSG(format("{0:-}", 'c'), format_error, + "invalid format specifier for char"); + EXPECT_THROW_MSG(format("{0:-}", "abc"), format_error, + "format specifier requires numeric argument"); + EXPECT_THROW_MSG(format("{0:-}", reinterpret_cast<void*>(0x42)), format_error, + "format specifier requires numeric argument"); +} + +TEST(FormatterTest, SpaceSign) { + EXPECT_EQ(" 42", format("{0: }", 42)); + EXPECT_EQ("-42", format("{0: }", -42)); + EXPECT_EQ(" 42", format("{0: }", 42)); + EXPECT_THROW_MSG(format("{0: }", 42u), format_error, + "format specifier requires signed argument"); + EXPECT_EQ(" 42", format("{0: }", 42l)); + EXPECT_THROW_MSG(format("{0: }", 42ul), format_error, + "format specifier requires signed argument"); + EXPECT_EQ(" 42", format("{0: }", 42ll)); + EXPECT_THROW_MSG(format("{0: }", 42ull), format_error, + "format specifier requires signed argument"); + EXPECT_EQ(" 42", format("{0: }", 42.0)); + EXPECT_EQ(" 42", format("{0: }", 42.0l)); + EXPECT_THROW_MSG(format("{0: ", 'c'), format_error, + "missing '}' in format string"); + EXPECT_THROW_MSG(format("{0: }", 'c'), format_error, + "invalid format specifier for char"); + EXPECT_THROW_MSG(format("{0: }", "abc"), format_error, + "format specifier requires numeric argument"); + EXPECT_THROW_MSG(format("{0: }", reinterpret_cast<void*>(0x42)), format_error, + "format specifier requires numeric argument"); +} + +TEST(FormatterTest, SignNotTruncated) { + wchar_t format_str[] = {L'{', L':', + '+' | (1 << fmt::detail::num_bits<char>()), L'}', 0}; + EXPECT_THROW(format(format_str, 42), format_error); +} + +TEST(FormatterTest, HashFlag) { + EXPECT_EQ("42", format("{0:#}", 42)); + EXPECT_EQ("-42", format("{0:#}", -42)); + EXPECT_EQ("0b101010", format("{0:#b}", 42)); + EXPECT_EQ("0B101010", format("{0:#B}", 42)); + EXPECT_EQ("-0b101010", format("{0:#b}", -42)); + EXPECT_EQ("0x42", format("{0:#x}", 0x42)); + EXPECT_EQ("0X42", format("{0:#X}", 0x42)); + EXPECT_EQ("-0x42", format("{0:#x}", -0x42)); + EXPECT_EQ("0", format("{0:#o}", 0)); + EXPECT_EQ("042", format("{0:#o}", 042)); + EXPECT_EQ("-042", format("{0:#o}", -042)); + EXPECT_EQ("42", format("{0:#}", 42u)); + EXPECT_EQ("0x42", format("{0:#x}", 0x42u)); + EXPECT_EQ("042", format("{0:#o}", 042u)); + + EXPECT_EQ("-42", format("{0:#}", -42l)); + EXPECT_EQ("0x42", format("{0:#x}", 0x42l)); + EXPECT_EQ("-0x42", format("{0:#x}", -0x42l)); + EXPECT_EQ("042", format("{0:#o}", 042l)); + EXPECT_EQ("-042", format("{0:#o}", -042l)); + EXPECT_EQ("42", format("{0:#}", 42ul)); + EXPECT_EQ("0x42", format("{0:#x}", 0x42ul)); + EXPECT_EQ("042", format("{0:#o}", 042ul)); + + EXPECT_EQ("-42", format("{0:#}", -42ll)); + EXPECT_EQ("0x42", format("{0:#x}", 0x42ll)); + EXPECT_EQ("-0x42", format("{0:#x}", -0x42ll)); + EXPECT_EQ("042", format("{0:#o}", 042ll)); + EXPECT_EQ("-042", format("{0:#o}", -042ll)); + EXPECT_EQ("42", format("{0:#}", 42ull)); + EXPECT_EQ("0x42", format("{0:#x}", 0x42ull)); + EXPECT_EQ("042", format("{0:#o}", 042ull)); + + EXPECT_EQ("-42.0", format("{0:#}", -42.0)); + EXPECT_EQ("-42.0", format("{0:#}", -42.0l)); + EXPECT_EQ("4.e+01", format("{:#.0e}", 42.0)); + EXPECT_EQ("0.", format("{:#.0f}", 0.01)); + EXPECT_EQ("0.50", format("{:#.2g}", 0.5)); + EXPECT_EQ("0.", format("{:#.0f}", 0.5)); + EXPECT_THROW_MSG(format("{0:#", 'c'), format_error, + "missing '}' in format string"); + EXPECT_THROW_MSG(format("{0:#}", 'c'), format_error, + "invalid format specifier for char"); + EXPECT_THROW_MSG(format("{0:#}", "abc"), format_error, + "format specifier requires numeric argument"); + EXPECT_THROW_MSG(format("{0:#}", reinterpret_cast<void*>(0x42)), format_error, + "format specifier requires numeric argument"); +} + +TEST(FormatterTest, ZeroFlag) { + EXPECT_EQ("42", format("{0:0}", 42)); + EXPECT_EQ("-0042", format("{0:05}", -42)); + EXPECT_EQ("00042", format("{0:05}", 42u)); + EXPECT_EQ("-0042", format("{0:05}", -42l)); + EXPECT_EQ("00042", format("{0:05}", 42ul)); + EXPECT_EQ("-0042", format("{0:05}", -42ll)); + EXPECT_EQ("00042", format("{0:05}", 42ull)); + EXPECT_EQ("-000042", format("{0:07}", -42.0)); + EXPECT_EQ("-000042", format("{0:07}", -42.0l)); + EXPECT_THROW_MSG(format("{0:0", 'c'), format_error, + "missing '}' in format string"); + EXPECT_THROW_MSG(format("{0:05}", 'c'), format_error, + "invalid format specifier for char"); + EXPECT_THROW_MSG(format("{0:05}", "abc"), format_error, + "format specifier requires numeric argument"); + EXPECT_THROW_MSG(format("{0:05}", reinterpret_cast<void*>(0x42)), + format_error, "format specifier requires numeric argument"); +} + +TEST(FormatterTest, Width) { + char format_str[BUFFER_SIZE]; + safe_sprintf(format_str, "{0:%u", UINT_MAX); + increment(format_str + 3); + EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big"); + size_t size = std::strlen(format_str); + format_str[size] = '}'; + format_str[size + 1] = 0; + EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big"); + + safe_sprintf(format_str, "{0:%u", INT_MAX + 1u); + EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big"); + safe_sprintf(format_str, "{0:%u}", INT_MAX + 1u); + EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big"); + EXPECT_EQ(" -42", format("{0:4}", -42)); + EXPECT_EQ(" 42", format("{0:5}", 42u)); + EXPECT_EQ(" -42", format("{0:6}", -42l)); + EXPECT_EQ(" 42", format("{0:7}", 42ul)); + EXPECT_EQ(" -42", format("{0:6}", -42ll)); + EXPECT_EQ(" 42", format("{0:7}", 42ull)); + EXPECT_EQ(" -1.23", format("{0:8}", -1.23)); + EXPECT_EQ(" -1.23", format("{0:9}", -1.23l)); + EXPECT_EQ(" 0xcafe", format("{0:10}", reinterpret_cast<void*>(0xcafe))); + EXPECT_EQ("x ", format("{0:11}", 'x')); + EXPECT_EQ("str ", format("{0:12}", "str")); + EXPECT_EQ(fmt::format("{:*^5}", "đ€Ą"), "**đ€Ą**"); +} + +template <typename T> inline T const_check(T value) { return value; } + +TEST(FormatterTest, RuntimeWidth) { + char format_str[BUFFER_SIZE]; + safe_sprintf(format_str, "{0:{%u", UINT_MAX); + increment(format_str + 4); + EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big"); + size_t size = std::strlen(format_str); + format_str[size] = '}'; + format_str[size + 1] = 0; + EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big"); + format_str[size + 1] = '}'; + format_str[size + 2] = 0; + EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big"); + + EXPECT_THROW_MSG(format("{0:{", 0), format_error, "invalid format string"); + EXPECT_THROW_MSG(format("{0:{}", 0), format_error, + "cannot switch from manual to automatic argument indexing"); + EXPECT_THROW_MSG(format("{0:{?}}", 0), format_error, "invalid format string"); + EXPECT_THROW_MSG(format("{0:{1}}", 0), format_error, "argument not found"); + + EXPECT_THROW_MSG(format("{0:{0:}}", 0), format_error, + "invalid format string"); + + EXPECT_THROW_MSG(format("{0:{1}}", 0, -1), format_error, "negative width"); + EXPECT_THROW_MSG(format("{0:{1}}", 0, (INT_MAX + 1u)), format_error, + "number is too big"); + EXPECT_THROW_MSG(format("{0:{1}}", 0, -1l), format_error, "negative width"); + if (const_check(sizeof(long) > sizeof(int))) { + long value = INT_MAX; + EXPECT_THROW_MSG(format("{0:{1}}", 0, (value + 1)), format_error, + "number is too big"); + } + EXPECT_THROW_MSG(format("{0:{1}}", 0, (INT_MAX + 1ul)), format_error, + "number is too big"); + + EXPECT_THROW_MSG(format("{0:{1}}", 0, '0'), format_error, + "width is not integer"); + EXPECT_THROW_MSG(format("{0:{1}}", 0, 0.0), format_error, + "width is not integer"); + + EXPECT_EQ(" -42", format("{0:{1}}", -42, 4)); + EXPECT_EQ(" 42", format("{0:{1}}", 42u, 5)); + EXPECT_EQ(" -42", format("{0:{1}}", -42l, 6)); + EXPECT_EQ(" 42", format("{0:{1}}", 42ul, 7)); + EXPECT_EQ(" -42", format("{0:{1}}", -42ll, 6)); + EXPECT_EQ(" 42", format("{0:{1}}", 42ull, 7)); + EXPECT_EQ(" -1.23", format("{0:{1}}", -1.23, 8)); + EXPECT_EQ(" -1.23", format("{0:{1}}", -1.23l, 9)); + EXPECT_EQ(" 0xcafe", + format("{0:{1}}", reinterpret_cast<void*>(0xcafe), 10)); + EXPECT_EQ("x ", format("{0:{1}}", 'x', 11)); + EXPECT_EQ("str ", format("{0:{1}}", "str", 12)); +} + +TEST(FormatterTest, Precision) { + char format_str[BUFFER_SIZE]; + safe_sprintf(format_str, "{0:.%u", UINT_MAX); + increment(format_str + 4); + EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big"); + size_t size = std::strlen(format_str); + format_str[size] = '}'; + format_str[size + 1] = 0; + EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big"); + + safe_sprintf(format_str, "{0:.%u", INT_MAX + 1u); + EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big"); + safe_sprintf(format_str, "{0:.%u}", INT_MAX + 1u); + EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big"); + + EXPECT_THROW_MSG(format("{0:.", 0), format_error, + "missing precision specifier"); + EXPECT_THROW_MSG(format("{0:.}", 0), format_error, + "missing precision specifier"); + + EXPECT_THROW_MSG(format("{0:.2", 0), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.2}", 42), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.2f}", 42), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.2}", 42u), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.2f}", 42u), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.2}", 42l), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.2f}", 42l), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.2}", 42ul), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.2f}", 42ul), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.2}", 42ll), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.2f}", 42ll), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.2}", 42ull), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.2f}", 42ull), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:3.0}", 'x'), format_error, + "precision not allowed for this argument type"); + EXPECT_EQ("1.2", format("{0:.2}", 1.2345)); + EXPECT_EQ("1.2", format("{0:.2}", 1.2345l)); + EXPECT_EQ("1.2e+56", format("{:.2}", 1.234e56)); + EXPECT_EQ("1e+00", format("{:.0e}", 1.0L)); + EXPECT_EQ(" 0.0e+00", format("{:9.1e}", 0.0)); + EXPECT_EQ( + "4.9406564584124654417656879286822137236505980261432476442558568250067550" + "727020875186529983636163599237979656469544571773092665671035593979639877" + "479601078187812630071319031140452784581716784898210368871863605699873072" + "305000638740915356498438731247339727316961514003171538539807412623856559" + "117102665855668676818703956031062493194527159149245532930545654440112748" + "012970999954193198940908041656332452475714786901472678015935523861155013" + "480352649347201937902681071074917033322268447533357208324319361e-324", + format("{:.494}", 4.9406564584124654E-324)); + EXPECT_EQ( + "-0X1.41FE3FFE71C9E000000000000000000000000000000000000000000000000000000" + "000000000000000000000000000000000000000000000000000000000000000000000000" + "000000000000000000000000000000000000000000000000000000000000000000000000" + "000000000000000000000000000000000000000000000000000000000000000000000000" + "000000000000000000000000000000000000000000000000000000000000000000000000" + "000000000000000000000000000000000000000000000000000000000000000000000000" + "000000000000000000000000000000000000000000000000000000000000000000000000" + "000000000000000000000000000000000000000000000000000000000000000000000000" + "000000000000000000000000000000000000000000000000000000000000000000000000" + "000000000000000000000000000000000000000000000000000000000000000000000000" + "000000000000000000000000000000000000000000000000000000000000000000000000" + "000000000000000000000000000000000000000000000000000P+127", + format("{:.838A}", -2.14001164E+38)); + EXPECT_EQ("123.", format("{:#.0f}", 123.0)); + EXPECT_EQ("1.23", format("{:.02f}", 1.234)); + EXPECT_EQ("0.001", format("{:.1g}", 0.001)); + EXPECT_EQ("1019666400", format("{}", 1019666432.0f)); + EXPECT_EQ("1e+01", format("{:.0e}", 9.5)); + EXPECT_EQ("1.0e-34", fmt::format("{:.1e}", 1e-34)); + + EXPECT_THROW_MSG(format("{0:.2}", reinterpret_cast<void*>(0xcafe)), + format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.2f}", reinterpret_cast<void*>(0xcafe)), + format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{:.{}e}", 42.0, fmt::detail::max_value<int>()), + format_error, "number is too big"); + + EXPECT_EQ("st", format("{0:.2}", "str")); +} + +TEST(FormatterTest, RuntimePrecision) { + char format_str[BUFFER_SIZE]; + safe_sprintf(format_str, "{0:.{%u", UINT_MAX); + increment(format_str + 5); + EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big"); + size_t size = std::strlen(format_str); + format_str[size] = '}'; + format_str[size + 1] = 0; + EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big"); + format_str[size + 1] = '}'; + format_str[size + 2] = 0; + EXPECT_THROW_MSG(format(format_str, 0), format_error, "number is too big"); + + EXPECT_THROW_MSG(format("{0:.{", 0), format_error, "invalid format string"); + EXPECT_THROW_MSG(format("{0:.{}", 0), format_error, + "cannot switch from manual to automatic argument indexing"); + EXPECT_THROW_MSG(format("{0:.{?}}", 0), format_error, + "invalid format string"); + EXPECT_THROW_MSG(format("{0:.{1}", 0, 0), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.{1}}", 0), format_error, "argument not found"); + + EXPECT_THROW_MSG(format("{0:.{0:}}", 0), format_error, + "invalid format string"); + + EXPECT_THROW_MSG(format("{0:.{1}}", 0, -1), format_error, + "negative precision"); + EXPECT_THROW_MSG(format("{0:.{1}}", 0, (INT_MAX + 1u)), format_error, + "number is too big"); + EXPECT_THROW_MSG(format("{0:.{1}}", 0, -1l), format_error, + "negative precision"); + if (const_check(sizeof(long) > sizeof(int))) { + long value = INT_MAX; + EXPECT_THROW_MSG(format("{0:.{1}}", 0, (value + 1)), format_error, + "number is too big"); + } + EXPECT_THROW_MSG(format("{0:.{1}}", 0, (INT_MAX + 1ul)), format_error, + "number is too big"); + + EXPECT_THROW_MSG(format("{0:.{1}}", 0, '0'), format_error, + "precision is not integer"); + EXPECT_THROW_MSG(format("{0:.{1}}", 0, 0.0), format_error, + "precision is not integer"); + + EXPECT_THROW_MSG(format("{0:.{1}}", 42, 2), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.{1}f}", 42, 2), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.{1}}", 42u, 2), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.{1}f}", 42u, 2), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.{1}}", 42l, 2), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.{1}f}", 42l, 2), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.{1}}", 42ul, 2), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.{1}f}", 42ul, 2), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.{1}}", 42ll, 2), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.{1}f}", 42ll, 2), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.{1}}", 42ull, 2), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.{1}f}", 42ull, 2), format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:3.{1}}", 'x', 0), format_error, + "precision not allowed for this argument type"); + EXPECT_EQ("1.2", format("{0:.{1}}", 1.2345, 2)); + EXPECT_EQ("1.2", format("{1:.{0}}", 2, 1.2345l)); + + EXPECT_THROW_MSG(format("{0:.{1}}", reinterpret_cast<void*>(0xcafe), 2), + format_error, + "precision not allowed for this argument type"); + EXPECT_THROW_MSG(format("{0:.{1}f}", reinterpret_cast<void*>(0xcafe), 2), + format_error, + "precision not allowed for this argument type"); + + EXPECT_EQ("st", format("{0:.{1}}", "str", 2)); +} + +template <typename T> +void check_unknown_types(const T& value, const char* types, const char*) { + char format_str[BUFFER_SIZE]; + const char* special = ".0123456789}"; + for (int i = CHAR_MIN; i <= CHAR_MAX; ++i) { + char c = static_cast<char>(i); + if (std::strchr(types, c) || std::strchr(special, c) || !c) continue; + safe_sprintf(format_str, "{0:10%c}", c); + const char* message = "invalid type specifier"; + EXPECT_THROW_MSG(format(format_str, value), format_error, message) + << format_str << " " << message; + } +} + +TEST(BoolTest, FormatBool) { + EXPECT_EQ("true", format("{}", true)); + EXPECT_EQ("false", format("{}", false)); + EXPECT_EQ("1", format("{:d}", true)); + EXPECT_EQ("true ", format("{:5}", true)); + EXPECT_EQ(L"true", format(L"{}", true)); +} + +TEST(FormatterTest, FormatShort) { + short s = 42; + EXPECT_EQ("42", format("{0:d}", s)); + unsigned short us = 42; + EXPECT_EQ("42", format("{0:d}", us)); +} + +TEST(FormatterTest, FormatInt) { + EXPECT_THROW_MSG(format("{0:v", 42), format_error, + "missing '}' in format string"); + check_unknown_types(42, "bBdoxXnLc", "integer"); + EXPECT_EQ("x", format("{:c}", static_cast<int>('x'))); +} + +TEST(FormatterTest, FormatBin) { + EXPECT_EQ("0", format("{0:b}", 0)); + EXPECT_EQ("101010", format("{0:b}", 42)); + EXPECT_EQ("101010", format("{0:b}", 42u)); + EXPECT_EQ("-101010", format("{0:b}", -42)); + EXPECT_EQ("11000000111001", format("{0:b}", 12345)); + EXPECT_EQ("10010001101000101011001111000", format("{0:b}", 0x12345678)); + EXPECT_EQ("10010000101010111100110111101111", format("{0:b}", 0x90ABCDEF)); + EXPECT_EQ("11111111111111111111111111111111", + format("{0:b}", max_value<uint32_t>())); +} + +#if FMT_USE_INT128 +constexpr auto int128_max = static_cast<__int128_t>( + (static_cast<__uint128_t>(1) << ((__SIZEOF_INT128__ * CHAR_BIT) - 1)) - 1); +constexpr auto int128_min = -int128_max - 1; + +constexpr auto uint128_max = ~static_cast<__uint128_t>(0); +#endif + +TEST(FormatterTest, FormatDec) { + EXPECT_EQ("0", format("{0}", 0)); + EXPECT_EQ("42", format("{0}", 42)); + EXPECT_EQ("42", format("{0:d}", 42)); + EXPECT_EQ("42", format("{0}", 42u)); + EXPECT_EQ("-42", format("{0}", -42)); + EXPECT_EQ("12345", format("{0}", 12345)); + EXPECT_EQ("67890", format("{0}", 67890)); +#if FMT_USE_INT128 + EXPECT_EQ("0", format("{0}", static_cast<__int128_t>(0))); + EXPECT_EQ("0", format("{0}", static_cast<__uint128_t>(0))); + EXPECT_EQ("9223372036854775808", + format("{0}", static_cast<__int128_t>(INT64_MAX) + 1)); + EXPECT_EQ("-9223372036854775809", + format("{0}", static_cast<__int128_t>(INT64_MIN) - 1)); + EXPECT_EQ("18446744073709551616", + format("{0}", static_cast<__int128_t>(UINT64_MAX) + 1)); + EXPECT_EQ("170141183460469231731687303715884105727", + format("{0}", int128_max)); + EXPECT_EQ("-170141183460469231731687303715884105728", + format("{0}", int128_min)); + EXPECT_EQ("340282366920938463463374607431768211455", + format("{0}", uint128_max)); +#endif + + char buffer[BUFFER_SIZE]; + safe_sprintf(buffer, "%d", INT_MIN); + EXPECT_EQ(buffer, format("{0}", INT_MIN)); + safe_sprintf(buffer, "%d", INT_MAX); + EXPECT_EQ(buffer, format("{0}", INT_MAX)); + safe_sprintf(buffer, "%u", UINT_MAX); + EXPECT_EQ(buffer, format("{0}", UINT_MAX)); + safe_sprintf(buffer, "%ld", 0 - static_cast<unsigned long>(LONG_MIN)); + EXPECT_EQ(buffer, format("{0}", LONG_MIN)); + safe_sprintf(buffer, "%ld", LONG_MAX); + EXPECT_EQ(buffer, format("{0}", LONG_MAX)); + safe_sprintf(buffer, "%lu", ULONG_MAX); + EXPECT_EQ(buffer, format("{0}", ULONG_MAX)); +} + +TEST(FormatterTest, FormatHex) { + EXPECT_EQ("0", format("{0:x}", 0)); + EXPECT_EQ("42", format("{0:x}", 0x42)); + EXPECT_EQ("42", format("{0:x}", 0x42u)); + EXPECT_EQ("-42", format("{0:x}", -0x42)); + EXPECT_EQ("12345678", format("{0:x}", 0x12345678)); + EXPECT_EQ("90abcdef", format("{0:x}", 0x90abcdef)); + EXPECT_EQ("12345678", format("{0:X}", 0x12345678)); + EXPECT_EQ("90ABCDEF", format("{0:X}", 0x90ABCDEF)); +#if FMT_USE_INT128 + EXPECT_EQ("0", format("{0:x}", static_cast<__int128_t>(0))); + EXPECT_EQ("0", format("{0:x}", static_cast<__uint128_t>(0))); + EXPECT_EQ("8000000000000000", + format("{0:x}", static_cast<__int128_t>(INT64_MAX) + 1)); + EXPECT_EQ("-8000000000000001", + format("{0:x}", static_cast<__int128_t>(INT64_MIN) - 1)); + EXPECT_EQ("10000000000000000", + format("{0:x}", static_cast<__int128_t>(UINT64_MAX) + 1)); + EXPECT_EQ("7fffffffffffffffffffffffffffffff", format("{0:x}", int128_max)); + EXPECT_EQ("-80000000000000000000000000000000", format("{0:x}", int128_min)); + EXPECT_EQ("ffffffffffffffffffffffffffffffff", format("{0:x}", uint128_max)); +#endif + + char buffer[BUFFER_SIZE]; + safe_sprintf(buffer, "-%x", 0 - static_cast<unsigned>(INT_MIN)); + EXPECT_EQ(buffer, format("{0:x}", INT_MIN)); + safe_sprintf(buffer, "%x", INT_MAX); + EXPECT_EQ(buffer, format("{0:x}", INT_MAX)); + safe_sprintf(buffer, "%x", UINT_MAX); + EXPECT_EQ(buffer, format("{0:x}", UINT_MAX)); + safe_sprintf(buffer, "-%lx", 0 - static_cast<unsigned long>(LONG_MIN)); + EXPECT_EQ(buffer, format("{0:x}", LONG_MIN)); + safe_sprintf(buffer, "%lx", LONG_MAX); + EXPECT_EQ(buffer, format("{0:x}", LONG_MAX)); + safe_sprintf(buffer, "%lx", ULONG_MAX); + EXPECT_EQ(buffer, format("{0:x}", ULONG_MAX)); +} + +TEST(FormatterTest, FormatOct) { + EXPECT_EQ("0", format("{0:o}", 0)); + EXPECT_EQ("42", format("{0:o}", 042)); + EXPECT_EQ("42", format("{0:o}", 042u)); + EXPECT_EQ("-42", format("{0:o}", -042)); + EXPECT_EQ("12345670", format("{0:o}", 012345670)); +#if FMT_USE_INT128 + EXPECT_EQ("0", format("{0:o}", static_cast<__int128_t>(0))); + EXPECT_EQ("0", format("{0:o}", static_cast<__uint128_t>(0))); + EXPECT_EQ("1000000000000000000000", + format("{0:o}", static_cast<__int128_t>(INT64_MAX) + 1)); + EXPECT_EQ("-1000000000000000000001", + format("{0:o}", static_cast<__int128_t>(INT64_MIN) - 1)); + EXPECT_EQ("2000000000000000000000", + format("{0:o}", static_cast<__int128_t>(UINT64_MAX) + 1)); + EXPECT_EQ("1777777777777777777777777777777777777777777", + format("{0:o}", int128_max)); + EXPECT_EQ("-2000000000000000000000000000000000000000000", + format("{0:o}", int128_min)); + EXPECT_EQ("3777777777777777777777777777777777777777777", + format("{0:o}", uint128_max)); +#endif + + char buffer[BUFFER_SIZE]; + safe_sprintf(buffer, "-%o", 0 - static_cast<unsigned>(INT_MIN)); + EXPECT_EQ(buffer, format("{0:o}", INT_MIN)); + safe_sprintf(buffer, "%o", INT_MAX); + EXPECT_EQ(buffer, format("{0:o}", INT_MAX)); + safe_sprintf(buffer, "%o", UINT_MAX); + EXPECT_EQ(buffer, format("{0:o}", UINT_MAX)); + safe_sprintf(buffer, "-%lo", 0 - static_cast<unsigned long>(LONG_MIN)); + EXPECT_EQ(buffer, format("{0:o}", LONG_MIN)); + safe_sprintf(buffer, "%lo", LONG_MAX); + EXPECT_EQ(buffer, format("{0:o}", LONG_MAX)); + safe_sprintf(buffer, "%lo", ULONG_MAX); + EXPECT_EQ(buffer, format("{0:o}", ULONG_MAX)); +} + +TEST(FormatterTest, FormatIntLocale) { + EXPECT_EQ("1234", format("{:L}", 1234)); +} + +struct ConvertibleToLongLong { + operator long long() const { return 1LL << 32; } +}; + +TEST(FormatterTest, FormatConvertibleToLongLong) { + EXPECT_EQ("100000000", format("{:x}", ConvertibleToLongLong())); +} + +TEST(FormatterTest, FormatFloat) { + EXPECT_EQ("0", format("{}", 0.0f)); + EXPECT_EQ("392.500000", format("{0:f}", 392.5f)); +} + +TEST(FormatterTest, FormatDouble) { + EXPECT_EQ("0", format("{}", 0.0)); + check_unknown_types(1.2, "eEfFgGaAnL%", "double"); + EXPECT_EQ("0", format("{:}", 0.0)); + EXPECT_EQ("0.000000", format("{:f}", 0.0)); + EXPECT_EQ("0", format("{:g}", 0.0)); + EXPECT_EQ("392.65", format("{:}", 392.65)); + EXPECT_EQ("392.65", format("{:g}", 392.65)); + EXPECT_EQ("392.65", format("{:G}", 392.65)); + EXPECT_EQ("4.9014e+06", format("{:g}", 4.9014e6)); + EXPECT_EQ("392.650000", format("{:f}", 392.65)); + EXPECT_EQ("392.650000", format("{:F}", 392.65)); + EXPECT_EQ("42", format("{:L}", 42.0)); + char buffer[BUFFER_SIZE]; + safe_sprintf(buffer, "%e", 392.65); + EXPECT_EQ(buffer, format("{0:e}", 392.65)); + safe_sprintf(buffer, "%E", 392.65); + EXPECT_EQ(buffer, format("{0:E}", 392.65)); + EXPECT_EQ("+0000392.6", format("{0:+010.4g}", 392.65)); + safe_sprintf(buffer, "%a", -42.0); + EXPECT_EQ(buffer, format("{:a}", -42.0)); + safe_sprintf(buffer, "%A", -42.0); + EXPECT_EQ(buffer, format("{:A}", -42.0)); + EXPECT_EQ("9223372036854775808.000000", + format("{:f}", 9223372036854775807.0)); +} + +TEST(FormatterTest, PrecisionRounding) { + EXPECT_EQ("0", format("{:.0f}", 0.0)); + EXPECT_EQ("0", format("{:.0f}", 0.01)); + EXPECT_EQ("0", format("{:.0f}", 0.1)); + EXPECT_EQ("0.000", format("{:.3f}", 0.00049)); + EXPECT_EQ("0.001", format("{:.3f}", 0.0005)); + EXPECT_EQ("0.001", format("{:.3f}", 0.00149)); + EXPECT_EQ("0.002", format("{:.3f}", 0.0015)); + EXPECT_EQ("1.000", format("{:.3f}", 0.9999)); + EXPECT_EQ("0.00123", format("{:.3}", 0.00123)); + EXPECT_EQ("0.1", format("{:.16g}", 0.1)); + EXPECT_EQ("1", fmt::format("{:.0}", 1.0)); + EXPECT_EQ("225.51575035152063720", + fmt::format("{:.17f}", 225.51575035152064)); + EXPECT_EQ("-761519619559038.2", fmt::format("{:.1f}", -761519619559038.2)); + EXPECT_EQ("1.9156918820264798e-56", + fmt::format("{}", 1.9156918820264798e-56)); + EXPECT_EQ("0.0000", fmt::format("{:.4f}", 7.2809479766055470e-15)); + + // Trigger a rounding error in Grisu by a specially chosen number. + EXPECT_EQ("3788512123356.985352", format("{:f}", 3788512123356.985352)); +} + +TEST(FormatterTest, PrettifyFloat) { + EXPECT_EQ("0.0001", fmt::format("{}", 1e-4)); + EXPECT_EQ("1e-05", fmt::format("{}", 1e-5)); + EXPECT_EQ("1000000000000000", fmt::format("{}", 1e15)); + EXPECT_EQ("1e+16", fmt::format("{}", 1e16)); + EXPECT_EQ("9.999e-05", fmt::format("{}", 9.999e-5)); + EXPECT_EQ("10000000000", fmt::format("{}", 1e10)); + EXPECT_EQ("100000000000", fmt::format("{}", 1e11)); + EXPECT_EQ("12340000000", fmt::format("{}", 1234e7)); + EXPECT_EQ("12.34", fmt::format("{}", 1234e-2)); + EXPECT_EQ("0.001234", fmt::format("{}", 1234e-6)); + EXPECT_EQ("0.1", fmt::format("{}", 0.1f)); + EXPECT_EQ("0.10000000149011612", fmt::format("{}", double(0.1f))); + EXPECT_EQ("1.3563156e-19", fmt::format("{}", 1.35631564e-19f)); +} + +TEST(FormatterTest, FormatNaN) { + double nan = std::numeric_limits<double>::quiet_NaN(); + EXPECT_EQ("nan", format("{}", nan)); + EXPECT_EQ("+nan", format("{:+}", nan)); + if (std::signbit(-nan)) + EXPECT_EQ("-nan", format("{}", -nan)); + else + fmt::print("Warning: compiler doesn't handle negative NaN correctly"); + EXPECT_EQ(" nan", format("{: }", nan)); + EXPECT_EQ("NAN", format("{:F}", nan)); + EXPECT_EQ("nan ", format("{:<7}", nan)); + EXPECT_EQ(" nan ", format("{:^7}", nan)); + EXPECT_EQ(" nan", format("{:>7}", nan)); +} + +TEST(FormatterTest, FormatInfinity) { + double inf = std::numeric_limits<double>::infinity(); + EXPECT_EQ("inf", format("{}", inf)); + EXPECT_EQ("+inf", format("{:+}", inf)); + EXPECT_EQ("-inf", format("{}", -inf)); + EXPECT_EQ(" inf", format("{: }", inf)); + EXPECT_EQ("INF", format("{:F}", inf)); + EXPECT_EQ("inf ", format("{:<7}", inf)); + EXPECT_EQ(" inf ", format("{:^7}", inf)); + EXPECT_EQ(" inf", format("{:>7}", inf)); +} + +TEST(FormatterTest, FormatLongDouble) { + EXPECT_EQ("0", format("{0:}", 0.0l)); + EXPECT_EQ("0.000000", format("{0:f}", 0.0l)); + EXPECT_EQ("392.65", format("{0:}", 392.65l)); + EXPECT_EQ("392.65", format("{0:g}", 392.65l)); + EXPECT_EQ("392.65", format("{0:G}", 392.65l)); + EXPECT_EQ("392.650000", format("{0:f}", 392.65l)); + EXPECT_EQ("392.650000", format("{0:F}", 392.65l)); + char buffer[BUFFER_SIZE]; + safe_sprintf(buffer, "%Le", 392.65l); + EXPECT_EQ(buffer, format("{0:e}", 392.65l)); + EXPECT_EQ("+0000392.6", format("{0:+010.4g}", 392.64l)); + safe_sprintf(buffer, "%La", 3.31l); + EXPECT_EQ(buffer, format("{:a}", 3.31l)); +} + +TEST(FormatterTest, FormatChar) { + const char types[] = "cbBdoxXL"; + check_unknown_types('a', types, "char"); + EXPECT_EQ("a", format("{0}", 'a')); + EXPECT_EQ("z", format("{0:c}", 'z')); + EXPECT_EQ(L"a", format(L"{0}", 'a')); + int n = 'x'; + for (const char* type = types + 1; *type; ++type) { + std::string format_str = fmt::format("{{:{}}}", *type); + EXPECT_EQ(fmt::format(format_str, n), fmt::format(format_str, 'x')); + } + EXPECT_EQ(fmt::format("{:02X}", n), fmt::format("{:02X}", 'x')); +} + +TEST(FormatterTest, FormatVolatileChar) { + volatile char c = 'x'; + EXPECT_EQ("x", format("{}", c)); +} + +TEST(FormatterTest, FormatUnsignedChar) { + EXPECT_EQ("42", format("{}", static_cast<unsigned char>(42))); + EXPECT_EQ("42", format("{}", static_cast<uint8_t>(42))); +} + +TEST(FormatterTest, FormatWChar) { + EXPECT_EQ(L"a", format(L"{0}", L'a')); + // This shouldn't compile: + // format("{}", L'a'); +} + +TEST(FormatterTest, FormatCString) { + check_unknown_types("test", "sp", "string"); + EXPECT_EQ("test", format("{0}", "test")); + EXPECT_EQ("test", format("{0:s}", "test")); + char nonconst[] = "nonconst"; + EXPECT_EQ("nonconst", format("{0}", nonconst)); + EXPECT_THROW_MSG(format("{0}", static_cast<const char*>(nullptr)), + format_error, "string pointer is null"); +} + +TEST(FormatterTest, FormatSCharString) { + signed char str[] = "test"; + EXPECT_EQ("test", format("{0:s}", str)); + const signed char* const_str = str; + EXPECT_EQ("test", format("{0:s}", const_str)); +} + +TEST(FormatterTest, FormatUCharString) { + unsigned char str[] = "test"; + EXPECT_EQ("test", format("{0:s}", str)); + const unsigned char* const_str = str; + EXPECT_EQ("test", format("{0:s}", const_str)); + unsigned char* ptr = str; + EXPECT_EQ("test", format("{0:s}", ptr)); +} + +TEST(FormatterTest, FormatPointer) { + check_unknown_types(reinterpret_cast<void*>(0x1234), "p", "pointer"); + EXPECT_EQ("0x0", format("{0}", static_cast<void*>(nullptr))); + EXPECT_EQ("0x1234", format("{0}", reinterpret_cast<void*>(0x1234))); + EXPECT_EQ("0x1234", format("{0:p}", reinterpret_cast<void*>(0x1234))); + EXPECT_EQ("0x" + std::string(sizeof(void*) * CHAR_BIT / 4, 'f'), + format("{0}", reinterpret_cast<void*>(~uintptr_t()))); + EXPECT_EQ("0x1234", format("{}", fmt::ptr(reinterpret_cast<int*>(0x1234)))); + std::unique_ptr<int> up(new int(1)); + EXPECT_EQ(format("{}", fmt::ptr(up.get())), format("{}", fmt::ptr(up))); + std::shared_ptr<int> sp(new int(1)); + EXPECT_EQ(format("{}", fmt::ptr(sp.get())), format("{}", fmt::ptr(sp))); + EXPECT_EQ("0x0", format("{}", nullptr)); +} + +TEST(FormatterTest, FormatString) { + EXPECT_EQ("test", format("{0}", std::string("test"))); +} + +TEST(FormatterTest, FormatStringView) { + EXPECT_EQ("test", format("{}", string_view("test"))); + EXPECT_EQ("", format("{}", string_view())); +} + +#ifdef FMT_USE_STRING_VIEW +struct string_viewable {}; + +FMT_BEGIN_NAMESPACE +template <> struct formatter<string_viewable> : formatter<std::string_view> { + auto format(string_viewable, format_context& ctx) -> decltype(ctx.out()) { + return formatter<std::string_view>::format("foo", ctx); + } +}; +FMT_END_NAMESPACE + +TEST(FormatterTest, FormatStdStringView) { + EXPECT_EQ("test", format("{}", std::string_view("test"))); + EXPECT_EQ("foo", format("{}", string_viewable())); +} + +struct explicitly_convertible_to_std_string_view { + explicit operator std::string_view() const { return "foo"; } +}; + +namespace fmt { +template <> +struct formatter<explicitly_convertible_to_std_string_view> + : formatter<std::string_view> { + auto format(const explicitly_convertible_to_std_string_view& v, + format_context& ctx) -> decltype(ctx.out()) { + return format_to(ctx.out(), "'{}'", std::string_view(v)); + } +}; +} // namespace fmt + +TEST(FormatterTest, FormatExplicitlyConvertibleToStdStringView) { + EXPECT_EQ("'foo'", + fmt::format("{}", explicitly_convertible_to_std_string_view())); +} +#endif + +// std::is_constructible is broken in MSVC until version 2015. +#if !FMT_MSC_VER || FMT_MSC_VER >= 1900 +struct explicitly_convertible_to_wstring_view { + explicit operator fmt::wstring_view() const { return L"foo"; } +}; + +TEST(FormatTest, FormatExplicitlyConvertibleToWStringView) { + EXPECT_EQ(L"foo", + fmt::format(L"{}", explicitly_convertible_to_wstring_view())); +} +#endif + +namespace fake_qt { +class QString { + public: + QString(const wchar_t* s) : s_(std::make_shared<std::wstring>(s)) {} + const wchar_t* utf16() const FMT_NOEXCEPT { return s_->data(); } + int size() const FMT_NOEXCEPT { return static_cast<int>(s_->size()); } + + private: + std::shared_ptr<std::wstring> s_; +}; + +fmt::basic_string_view<wchar_t> to_string_view(const QString& s) FMT_NOEXCEPT { + return {s.utf16(), static_cast<size_t>(s.size())}; +} +} // namespace fake_qt + +TEST(FormatTest, FormatForeignStrings) { + using fake_qt::QString; + EXPECT_EQ(fmt::format(QString(L"{}"), 42), L"42"); + EXPECT_EQ(fmt::format(QString(L"{}"), QString(L"42")), L"42"); +} + +FMT_BEGIN_NAMESPACE +template <> struct formatter<Date> { + template <typename ParseContext> + FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { + auto it = ctx.begin(); + if (it != ctx.end() && *it == 'd') ++it; + return it; + } + + auto format(const Date& d, format_context& ctx) -> decltype(ctx.out()) { + format_to(ctx.out(), "{}-{}-{}", d.year(), d.month(), d.day()); + return ctx.out(); + } +}; +FMT_END_NAMESPACE + +TEST(FormatterTest, FormatCustom) { + Date date(2012, 12, 9); + EXPECT_THROW_MSG(fmt::format("{:s}", date), format_error, + "unknown format specifier"); +} + +class Answer {}; + +FMT_BEGIN_NAMESPACE +template <> struct formatter<Answer> : formatter<int> { + template <typename FormatContext> + auto format(Answer, FormatContext& ctx) -> decltype(ctx.out()) { + return formatter<int>::format(42, ctx); + } +}; +FMT_END_NAMESPACE + +TEST(FormatterTest, CustomFormat) { + EXPECT_EQ("42", format("{0}", Answer())); + EXPECT_EQ("0042", format("{:04}", Answer())); +} + +TEST(FormatterTest, CustomFormatTo) { + char buf[10] = {}; + auto end = + &*fmt::format_to(fmt::detail::make_checked(buf, 10), "{}", Answer()); + EXPECT_EQ(end, buf + 2); + EXPECT_STREQ(buf, "42"); +} + +TEST(FormatterTest, WideFormatString) { + EXPECT_EQ(L"42", format(L"{}", 42)); + EXPECT_EQ(L"4.2", format(L"{}", 4.2)); + EXPECT_EQ(L"abc", format(L"{}", L"abc")); + EXPECT_EQ(L"z", format(L"{}", L'z')); + EXPECT_THROW(fmt::format(L"{:*\x343E}", 42), fmt::format_error); +} + +TEST(FormatterTest, FormatStringFromSpeedTest) { + EXPECT_EQ("1.2340000000:0042:+3.13:str:0x3e8:X:%", + format("{0:0.10f}:{1:04}:{2:+g}:{3}:{4}:{5}:%", 1.234, 42, 3.13, + "str", reinterpret_cast<void*>(1000), 'X')); +} + +TEST(FormatterTest, FormatExamples) { + std::string message = format("The answer is {}", 42); + EXPECT_EQ("The answer is 42", message); + + EXPECT_EQ("42", format("{}", 42)); + EXPECT_EQ("42", format(std::string("{}"), 42)); + + memory_buffer out; + format_to(out, "The answer is {}.", 42); + EXPECT_EQ("The answer is 42.", to_string(out)); + + const char* filename = "nonexistent"; + FILE* ftest = safe_fopen(filename, "r"); + if (ftest) fclose(ftest); + int error_code = errno; + EXPECT_TRUE(ftest == nullptr); + EXPECT_SYSTEM_ERROR( + { + FILE* f = safe_fopen(filename, "r"); + if (!f) + throw fmt::system_error(errno, "Cannot open file '{}'", filename); + fclose(f); + }, + error_code, "Cannot open file 'nonexistent'"); +} + +TEST(FormatterTest, Examples) { + EXPECT_EQ("First, thou shalt count to three", + format("First, thou shalt count to {0}", "three")); + EXPECT_EQ("Bring me a shrubbery", format("Bring me a {}", "shrubbery")); + EXPECT_EQ("From 1 to 3", format("From {} to {}", 1, 3)); + + char buffer[BUFFER_SIZE]; + safe_sprintf(buffer, "%03.2f", -1.2); + EXPECT_EQ(buffer, format("{:03.2f}", -1.2)); + + EXPECT_EQ("a, b, c", format("{0}, {1}, {2}", 'a', 'b', 'c')); + EXPECT_EQ("a, b, c", format("{}, {}, {}", 'a', 'b', 'c')); + EXPECT_EQ("c, b, a", format("{2}, {1}, {0}", 'a', 'b', 'c')); + EXPECT_EQ("abracadabra", format("{0}{1}{0}", "abra", "cad")); + + EXPECT_EQ("left aligned ", format("{:<30}", "left aligned")); + EXPECT_EQ(" right aligned", + format("{:>30}", "right aligned")); + EXPECT_EQ(" centered ", format("{:^30}", "centered")); + EXPECT_EQ("***********centered***********", format("{:*^30}", "centered")); + + EXPECT_EQ("+3.140000; -3.140000", format("{:+f}; {:+f}", 3.14, -3.14)); + EXPECT_EQ(" 3.140000; -3.140000", format("{: f}; {: f}", 3.14, -3.14)); + EXPECT_EQ("3.140000; -3.140000", format("{:-f}; {:-f}", 3.14, -3.14)); + + EXPECT_EQ("int: 42; hex: 2a; oct: 52", + format("int: {0:d}; hex: {0:x}; oct: {0:o}", 42)); + EXPECT_EQ("int: 42; hex: 0x2a; oct: 052", + format("int: {0:d}; hex: {0:#x}; oct: {0:#o}", 42)); + + EXPECT_EQ("The answer is 42", format("The answer is {}", 42)); + EXPECT_THROW_MSG(format("The answer is {:d}", "forty-two"), format_error, + "invalid type specifier"); + + EXPECT_EQ(L"Cyrillic letter \x42e", format(L"Cyrillic letter {}", L'\x42e')); + + EXPECT_WRITE( + stdout, fmt::print("{}", std::numeric_limits<double>::infinity()), "inf"); +} + +TEST(FormatIntTest, Data) { + fmt::format_int format_int(42); + EXPECT_EQ("42", std::string(format_int.data(), format_int.size())); +} + +TEST(FormatIntTest, FormatInt) { + EXPECT_EQ("42", fmt::format_int(42).str()); + EXPECT_EQ(2u, fmt::format_int(42).size()); + EXPECT_EQ("-42", fmt::format_int(-42).str()); + EXPECT_EQ(3u, fmt::format_int(-42).size()); + EXPECT_EQ("42", fmt::format_int(42ul).str()); + EXPECT_EQ("-42", fmt::format_int(-42l).str()); + EXPECT_EQ("42", fmt::format_int(42ull).str()); + EXPECT_EQ("-42", fmt::format_int(-42ll).str()); + std::ostringstream os; + os << max_value<int64_t>(); + EXPECT_EQ(os.str(), fmt::format_int(max_value<int64_t>()).str()); +} + +TEST(FormatTest, Print) { +#if FMT_USE_FCNTL + EXPECT_WRITE(stdout, fmt::print("Don't {}!", "panic"), "Don't panic!"); + EXPECT_WRITE(stderr, fmt::print(stderr, "Don't {}!", "panic"), + "Don't panic!"); +#endif + // Check that the wide print overload compiles. + if (fmt::detail::const_check(false)) fmt::print(L"test"); +} + +TEST(FormatTest, Variadic) { + EXPECT_EQ("abc1", format("{}c{}", "ab", 1)); + EXPECT_EQ(L"abc1", format(L"{}c{}", L"ab", 1)); +} + +TEST(FormatTest, Dynamic) { + typedef fmt::format_context ctx; + std::vector<fmt::basic_format_arg<ctx>> args; + args.emplace_back(fmt::detail::make_arg<ctx>(42)); + args.emplace_back(fmt::detail::make_arg<ctx>("abc1")); + args.emplace_back(fmt::detail::make_arg<ctx>(1.5f)); + + std::string result = fmt::vformat( + "{} and {} and {}", + fmt::basic_format_args<ctx>(args.data(), static_cast<int>(args.size()))); + + EXPECT_EQ("42 and abc1 and 1.5", result); +} + +TEST(FormatTest, Bytes) { + auto s = fmt::format("{:10}", fmt::bytes("ŃжОĐș")); + EXPECT_EQ("ŃжОĐș ", s); + EXPECT_EQ(10, s.size()); +} + +TEST(FormatTest, JoinArg) { + using fmt::join; + int v1[3] = {1, 2, 3}; + std::vector<float> v2; + v2.push_back(1.2f); + v2.push_back(3.4f); + void* v3[2] = {&v1[0], &v1[1]}; + + EXPECT_EQ("(1, 2, 3)", format("({})", join(v1, v1 + 3, ", "))); + EXPECT_EQ("(1)", format("({})", join(v1, v1 + 1, ", "))); + EXPECT_EQ("()", format("({})", join(v1, v1, ", "))); + EXPECT_EQ("(001, 002, 003)", format("({:03})", join(v1, v1 + 3, ", "))); + EXPECT_EQ("(+01.20, +03.40)", + format("({:+06.2f})", join(v2.begin(), v2.end(), ", "))); + + EXPECT_EQ(L"(1, 2, 3)", format(L"({})", join(v1, v1 + 3, L", "))); + EXPECT_EQ("1, 2, 3", format("{0:{1}}", join(v1, v1 + 3, ", "), 1)); + + EXPECT_EQ(format("{}, {}", v3[0], v3[1]), + format("{}", join(v3, v3 + 2, ", "))); + +#if !FMT_GCC_VERSION || FMT_GCC_VERSION >= 405 + EXPECT_EQ("(1, 2, 3)", format("({})", join(v1, ", "))); + EXPECT_EQ("(+01.20, +03.40)", format("({:+06.2f})", join(v2, ", "))); +#endif +} + +template <typename T> std::string str(const T& value) { + return fmt::format("{}", value); +} + +TEST(StrTest, Convert) { + EXPECT_EQ("42", str(42)); + std::string s = str(Date(2012, 12, 9)); + EXPECT_EQ("2012-12-9", s); +} + +std::string vformat_message(int id, const char* format, fmt::format_args args) { + fmt::memory_buffer buffer; + format_to(buffer, "[{}] ", id); + vformat_to(buffer, format, args); + return to_string(buffer); +} + +template <typename... Args> +std::string format_message(int id, const char* format, const Args&... args) { + auto va = fmt::make_format_args(args...); + return vformat_message(id, format, va); +} + +TEST(FormatTest, FormatMessageExample) { + EXPECT_EQ("[42] something happened", + format_message(42, "{} happened", "something")); +} + +template <typename... Args> +void print_error(const char* file, int line, const char* format, + const Args&... args) { + fmt::print("{}: {}: ", file, line); + fmt::print(format, args...); +} + +TEST(FormatTest, UnpackedArgs) { + EXPECT_EQ("0123456789abcdefg", + fmt::format("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 0, 1, 2, 3, 4, 5, + 6, 7, 8, 9, 'a', 'b', 'c', 'd', 'e', 'f', 'g')); +} + +struct string_like {}; +fmt::string_view to_string_view(string_like) { return "foo"; } + +constexpr char with_null[3] = {'{', '}', '\0'}; +constexpr char no_null[2] = {'{', '}'}; + +TEST(FormatTest, CompileTimeString) { + EXPECT_EQ("42", fmt::format(FMT_STRING("{}"), 42)); + EXPECT_EQ(L"42", fmt::format(FMT_STRING(L"{}"), 42)); + EXPECT_EQ("foo", fmt::format(FMT_STRING("{}"), string_like())); + (void)with_null; + (void)no_null; +#if __cplusplus >= 201703L + EXPECT_EQ("42", fmt::format(FMT_STRING(with_null), 42)); + EXPECT_EQ("42", fmt::format(FMT_STRING(no_null), 42)); +#endif +#if defined(FMT_USE_STRING_VIEW) && __cplusplus >= 201703L + EXPECT_EQ("42", fmt::format(FMT_STRING(std::string_view("{}")), 42)); + EXPECT_EQ(L"42", fmt::format(FMT_STRING(std::wstring_view(L"{}")), 42)); +#endif +} + +TEST(FormatTest, CustomFormatCompileTimeString) { + EXPECT_EQ("42", fmt::format(FMT_STRING("{}"), Answer())); + Answer answer; + EXPECT_EQ("42", fmt::format(FMT_STRING("{}"), answer)); + char buf[10] = {}; + fmt::format_to(buf, FMT_STRING("{}"), answer); + const Answer const_answer = Answer(); + EXPECT_EQ("42", fmt::format(FMT_STRING("{}"), const_answer)); +} + +#if FMT_USE_USER_DEFINED_LITERALS +// Passing user-defined literals directly to EXPECT_EQ causes problems +// with macro argument stringification (#) on some versions of GCC. +// Workaround: Assing the UDL result to a variable before the macro. + +using namespace fmt::literals; + +TEST(LiteralsTest, Format) { + auto udl_format = "{}c{}"_format("ab", 1); + EXPECT_EQ(format("{}c{}", "ab", 1), udl_format); + auto udl_format_w = L"{}c{}"_format(L"ab", 1); + EXPECT_EQ(format(L"{}c{}", L"ab", 1), udl_format_w); +} + +TEST(LiteralsTest, NamedArg) { + auto udl_a = format("{first}{second}{first}{third}", "first"_a = "abra", + "second"_a = "cad", "third"_a = 99); + EXPECT_EQ(format("{first}{second}{first}{third}", fmt::arg("first", "abra"), + fmt::arg("second", "cad"), fmt::arg("third", 99)), + udl_a); + auto udl_a_w = format(L"{first}{second}{first}{third}", L"first"_a = L"abra", + L"second"_a = L"cad", L"third"_a = 99); + EXPECT_EQ( + format(L"{first}{second}{first}{third}", fmt::arg(L"first", L"abra"), + fmt::arg(L"second", L"cad"), fmt::arg(L"third", 99)), + udl_a_w); +} + +TEST(FormatTest, UdlTemplate) { + EXPECT_EQ("foo", "foo"_format()); + EXPECT_EQ(" 42", "{0:10}"_format(42)); +} + +TEST(FormatTest, UdlPassUserDefinedObjectAsLvalue) { + Date date(2015, 10, 21); + EXPECT_EQ("2015-10-21", "{}"_format(date)); +} +#endif // FMT_USE_USER_DEFINED_LITERALS + +enum TestEnum { A }; + +TEST(FormatTest, Enum) { EXPECT_EQ("0", fmt::format("{}", A)); } + +TEST(FormatTest, FormatterNotSpecialized) { + static_assert( + !fmt::has_formatter<fmt::formatter<TestEnum>, fmt::format_context>::value, + ""); +} + +#if FMT_HAS_FEATURE(cxx_strong_enums) +enum big_enum : unsigned long long { big_enum_value = 5000000000ULL }; + +TEST(FormatTest, StrongEnum) { + EXPECT_EQ("5000000000", fmt::format("{}", big_enum_value)); +} +#endif + +TEST(FormatTest, NonNullTerminatedFormatString) { + EXPECT_EQ("42", format(string_view("{}foo", 2), 42)); +} + +struct variant { + enum { INT, STRING } type; + explicit variant(int) : type(INT) {} + explicit variant(const char*) : type(STRING) {} +}; + +FMT_BEGIN_NAMESPACE +template <> struct formatter<variant> : dynamic_formatter<> { + auto format(variant value, format_context& ctx) -> decltype(ctx.out()) { + if (value.type == variant::INT) return dynamic_formatter<>::format(42, ctx); + return dynamic_formatter<>::format("foo", ctx); + } +}; +FMT_END_NAMESPACE + +TEST(FormatTest, DynamicFormatter) { + auto num = variant(42); + auto str = variant("foo"); + EXPECT_EQ("42", format("{:d}", num)); + EXPECT_EQ("foo", format("{:s}", str)); + EXPECT_EQ(" 42 foo ", format("{:{}} {:{}}", num, 3, str, 4)); + EXPECT_THROW_MSG(format("{0:{}}", num), format_error, + "cannot switch from manual to automatic argument indexing"); + EXPECT_THROW_MSG(format("{:{0}}", num), format_error, + "cannot switch from automatic to manual argument indexing"); +#if FMT_DEPRECATED_NUMERIC_ALIGN + EXPECT_THROW_MSG(format("{:=}", str), format_error, + "format specifier requires numeric argument"); +#endif + EXPECT_THROW_MSG(format("{:+}", str), format_error, + "format specifier requires numeric argument"); + EXPECT_THROW_MSG(format("{:-}", str), format_error, + "format specifier requires numeric argument"); + EXPECT_THROW_MSG(format("{: }", str), format_error, + "format specifier requires numeric argument"); + EXPECT_THROW_MSG(format("{:#}", str), format_error, + "format specifier requires numeric argument"); + EXPECT_THROW_MSG(format("{:0}", str), format_error, + "format specifier requires numeric argument"); + EXPECT_THROW_MSG(format("{:.2}", num), format_error, + "precision not allowed for this argument type"); +} + +namespace adl_test { +namespace fmt { +namespace detail { +struct foo {}; +template <typename, typename OutputIt> void write(OutputIt, foo) = delete; +} // namespace detail +} // namespace fmt +} // namespace adl_test + +FMT_BEGIN_NAMESPACE +template <> +struct formatter<adl_test::fmt::detail::foo> : formatter<std::string> { + template <typename FormatContext> + auto format(adl_test::fmt::detail::foo, FormatContext& ctx) + -> decltype(ctx.out()) { + return formatter<std::string>::format("foo", ctx); + } +}; +FMT_END_NAMESPACE + +TEST(FormatTest, ToString) { + EXPECT_EQ("42", fmt::to_string(42)); + EXPECT_EQ("0x1234", fmt::to_string(reinterpret_cast<void*>(0x1234))); + EXPECT_EQ("foo", fmt::to_string(adl_test::fmt::detail::foo())); +} + +TEST(FormatTest, ToWString) { EXPECT_EQ(L"42", fmt::to_wstring(42)); } + +TEST(FormatTest, OutputIterators) { + std::list<char> out; + fmt::format_to(std::back_inserter(out), "{}", 42); + EXPECT_EQ("42", std::string(out.begin(), out.end())); + std::stringstream s; + fmt::format_to(std::ostream_iterator<char>(s), "{}", 42); + EXPECT_EQ("42", s.str()); +} + +TEST(FormatTest, FormattedSize) { + EXPECT_EQ(2u, fmt::formatted_size("{}", 42)); +} + +TEST(FormatTest, FormatTo) { + std::vector<char> v; + fmt::format_to(std::back_inserter(v), "{}", "foo"); + EXPECT_EQ(string_view(v.data(), v.size()), "foo"); +} + +TEST(FormatTest, FormatToN) { + char buffer[4]; + buffer[3] = 'x'; + auto result = fmt::format_to_n(buffer, 3, "{}", 12345); + EXPECT_EQ(5u, result.size); + EXPECT_EQ(buffer + 3, result.out); + EXPECT_EQ("123x", fmt::string_view(buffer, 4)); + + result = fmt::format_to_n(buffer, 3, "{:s}", "foobar"); + EXPECT_EQ(6u, result.size); + EXPECT_EQ(buffer + 3, result.out); + EXPECT_EQ("foox", fmt::string_view(buffer, 4)); + + buffer[0] = 'x'; + buffer[1] = 'x'; + buffer[2] = 'x'; + result = fmt::format_to_n(buffer, 3, "{}", 'A'); + EXPECT_EQ(1u, result.size); + EXPECT_EQ(buffer + 1, result.out); + EXPECT_EQ("Axxx", fmt::string_view(buffer, 4)); + + result = fmt::format_to_n(buffer, 3, "{}{} ", 'B', 'C'); + EXPECT_EQ(3u, result.size); + EXPECT_EQ(buffer + 3, result.out); + EXPECT_EQ("BC x", fmt::string_view(buffer, 4)); + + result = fmt::format_to_n(buffer, 4, "{}", "ABCDE"); + EXPECT_EQ(5u, result.size); + EXPECT_EQ("ABCD", fmt::string_view(buffer, 4)); + + buffer[3] = 'x'; + result = fmt::format_to_n(buffer, 3, "{}", std::string(1000, '*')); + EXPECT_EQ(1000u, result.size); + EXPECT_EQ("***x", fmt::string_view(buffer, 4)); +} + +TEST(FormatTest, WideFormatToN) { + wchar_t buffer[4]; + buffer[3] = L'x'; + auto result = fmt::format_to_n(buffer, 3, L"{}", 12345); + EXPECT_EQ(5u, result.size); + EXPECT_EQ(buffer + 3, result.out); + EXPECT_EQ(L"123x", fmt::wstring_view(buffer, 4)); + buffer[0] = L'x'; + buffer[1] = L'x'; + buffer[2] = L'x'; + result = fmt::format_to_n(buffer, 3, L"{}", L'A'); + EXPECT_EQ(1u, result.size); + EXPECT_EQ(buffer + 1, result.out); + EXPECT_EQ(L"Axxx", fmt::wstring_view(buffer, 4)); + result = fmt::format_to_n(buffer, 3, L"{}{} ", L'B', L'C'); + EXPECT_EQ(3u, result.size); + EXPECT_EQ(buffer + 3, result.out); + EXPECT_EQ(L"BC x", fmt::wstring_view(buffer, 4)); +} + +struct test_output_iterator { + char* data; + + using iterator_category = std::output_iterator_tag; + using value_type = void; + using difference_type = void; + using pointer = void; + using reference = void; + + test_output_iterator& operator++() { + ++data; + return *this; + } + test_output_iterator operator++(int) { + auto tmp = *this; + ++data; + return tmp; + } + char& operator*() { return *data; } +}; + +TEST(FormatTest, FormatToNOutputIterator) { + char buf[10] = {}; + fmt::format_to_n(test_output_iterator{buf}, 10, "{}", 42); + EXPECT_STREQ(buf, "42"); +} + +#if FMT_USE_CONSTEXPR +struct test_arg_id_handler { + enum result { NONE, EMPTY, INDEX, NAME, ERROR }; + result res = NONE; + int index = 0; + string_view name; + + FMT_CONSTEXPR void operator()() { res = EMPTY; } + + FMT_CONSTEXPR void operator()(int i) { + res = INDEX; + index = i; + } + + FMT_CONSTEXPR void operator()(string_view n) { + res = NAME; + name = n; + } + + FMT_CONSTEXPR void on_error(const char*) { res = ERROR; } +}; + +template <size_t N> +FMT_CONSTEXPR test_arg_id_handler parse_arg_id(const char (&s)[N]) { + test_arg_id_handler h; + fmt::detail::parse_arg_id(s, s + N, h); + return h; +} + +TEST(FormatTest, ConstexprParseArgID) { + static_assert(parse_arg_id(":").res == test_arg_id_handler::EMPTY, ""); + static_assert(parse_arg_id("}").res == test_arg_id_handler::EMPTY, ""); + static_assert(parse_arg_id("42:").res == test_arg_id_handler::INDEX, ""); + static_assert(parse_arg_id("42:").index == 42, ""); + static_assert(parse_arg_id("foo:").res == test_arg_id_handler::NAME, ""); + static_assert(parse_arg_id("foo:").name.size() == 3, ""); + static_assert(parse_arg_id("!").res == test_arg_id_handler::ERROR, ""); +} + +struct test_format_specs_handler { + enum Result { NONE, PLUS, MINUS, SPACE, HASH, ZERO, ERROR }; + Result res = NONE; + + fmt::align_t align = fmt::align::none; + char fill = 0; + int width = 0; + fmt::detail::arg_ref<char> width_ref; + int precision = 0; + fmt::detail::arg_ref<char> precision_ref; + char type = 0; + + // Workaround for MSVC2017 bug that results in "expression did not evaluate + // to a constant" with compiler-generated copy ctor. + FMT_CONSTEXPR test_format_specs_handler() {} + FMT_CONSTEXPR test_format_specs_handler( + const test_format_specs_handler& other) + : res(other.res), + align(other.align), + fill(other.fill), + width(other.width), + width_ref(other.width_ref), + precision(other.precision), + precision_ref(other.precision_ref), + type(other.type) {} + + FMT_CONSTEXPR void on_align(fmt::align_t a) { align = a; } + FMT_CONSTEXPR void on_fill(fmt::string_view f) { fill = f[0]; } + FMT_CONSTEXPR void on_plus() { res = PLUS; } + FMT_CONSTEXPR void on_minus() { res = MINUS; } + FMT_CONSTEXPR void on_space() { res = SPACE; } + FMT_CONSTEXPR void on_hash() { res = HASH; } + FMT_CONSTEXPR void on_zero() { res = ZERO; } + + FMT_CONSTEXPR void on_width(int w) { width = w; } + FMT_CONSTEXPR void on_dynamic_width(fmt::detail::auto_id) {} + FMT_CONSTEXPR void on_dynamic_width(int index) { width_ref = index; } + FMT_CONSTEXPR void on_dynamic_width(string_view) {} + + FMT_CONSTEXPR void on_precision(int p) { precision = p; } + FMT_CONSTEXPR void on_dynamic_precision(fmt::detail::auto_id) {} + FMT_CONSTEXPR void on_dynamic_precision(int index) { precision_ref = index; } + FMT_CONSTEXPR void on_dynamic_precision(string_view) {} + + FMT_CONSTEXPR void end_precision() {} + FMT_CONSTEXPR void on_type(char t) { type = t; } + FMT_CONSTEXPR void on_error(const char*) { res = ERROR; } +}; + +template <size_t N> +FMT_CONSTEXPR test_format_specs_handler parse_test_specs(const char (&s)[N]) { + test_format_specs_handler h; + fmt::detail::parse_format_specs(s, s + N, h); + return h; +} + +TEST(FormatTest, ConstexprParseFormatSpecs) { + typedef test_format_specs_handler handler; + static_assert(parse_test_specs("<").align == fmt::align::left, ""); + static_assert(parse_test_specs("*^").fill == '*', ""); + static_assert(parse_test_specs("+").res == handler::PLUS, ""); + static_assert(parse_test_specs("-").res == handler::MINUS, ""); + static_assert(parse_test_specs(" ").res == handler::SPACE, ""); + static_assert(parse_test_specs("#").res == handler::HASH, ""); + static_assert(parse_test_specs("0").res == handler::ZERO, ""); + static_assert(parse_test_specs("42").width == 42, ""); + static_assert(parse_test_specs("{42}").width_ref.val.index == 42, ""); + static_assert(parse_test_specs(".42").precision == 42, ""); + static_assert(parse_test_specs(".{42}").precision_ref.val.index == 42, ""); + static_assert(parse_test_specs("d").type == 'd', ""); + static_assert(parse_test_specs("{<").res == handler::ERROR, ""); +} + +struct test_parse_context { + typedef char char_type; + + FMT_CONSTEXPR int next_arg_id() { return 11; } + template <typename Id> FMT_CONSTEXPR void check_arg_id(Id) {} + + FMT_CONSTEXPR const char* begin() { return nullptr; } + FMT_CONSTEXPR const char* end() { return nullptr; } + + void on_error(const char*) {} +}; + +struct test_context { + using char_type = char; + using format_arg = fmt::basic_format_arg<test_context>; + using parse_context_type = fmt::format_parse_context; + + template <typename T> struct formatter_type { + typedef fmt::formatter<T, char_type> type; + }; + + template <typename Id> + FMT_CONSTEXPR fmt::basic_format_arg<test_context> arg(Id id) { + return fmt::detail::make_arg<test_context>(id); + } + + void on_error(const char*) {} + + FMT_CONSTEXPR test_context error_handler() { return *this; } +}; + +template <size_t N> +FMT_CONSTEXPR fmt::format_specs parse_specs(const char (&s)[N]) { + auto specs = fmt::format_specs(); + auto parse_ctx = test_parse_context(); + auto ctx = test_context(); + fmt::detail::specs_handler<test_parse_context, test_context> h( + specs, parse_ctx, ctx); + parse_format_specs(s, s + N, h); + return specs; +} + +TEST(FormatTest, ConstexprSpecsHandler) { + static_assert(parse_specs("<").align == fmt::align::left, ""); + static_assert(parse_specs("*^").fill[0] == '*', ""); + static_assert(parse_specs("+").sign == fmt::sign::plus, ""); + static_assert(parse_specs("-").sign == fmt::sign::minus, ""); + static_assert(parse_specs(" ").sign == fmt::sign::space, ""); + static_assert(parse_specs("#").alt, ""); + static_assert(parse_specs("0").align == fmt::align::numeric, ""); + static_assert(parse_specs("42").width == 42, ""); + static_assert(parse_specs("{}").width == 11, ""); + static_assert(parse_specs("{22}").width == 22, ""); + static_assert(parse_specs(".42").precision == 42, ""); + static_assert(parse_specs(".{}").precision == 11, ""); + static_assert(parse_specs(".{22}").precision == 22, ""); + static_assert(parse_specs("d").type == 'd', ""); +} + +template <size_t N> +FMT_CONSTEXPR fmt::detail::dynamic_format_specs<char> parse_dynamic_specs( + const char (&s)[N]) { + fmt::detail::dynamic_format_specs<char> specs; + test_parse_context ctx{}; + fmt::detail::dynamic_specs_handler<test_parse_context> h(specs, ctx); + parse_format_specs(s, s + N, h); + return specs; +} + +TEST(FormatTest, ConstexprDynamicSpecsHandler) { + static_assert(parse_dynamic_specs("<").align == fmt::align::left, ""); + static_assert(parse_dynamic_specs("*^").fill[0] == '*', ""); + static_assert(parse_dynamic_specs("+").sign == fmt::sign::plus, ""); + static_assert(parse_dynamic_specs("-").sign == fmt::sign::minus, ""); + static_assert(parse_dynamic_specs(" ").sign == fmt::sign::space, ""); + static_assert(parse_dynamic_specs("#").alt, ""); + static_assert(parse_dynamic_specs("0").align == fmt::align::numeric, ""); + static_assert(parse_dynamic_specs("42").width == 42, ""); + static_assert(parse_dynamic_specs("{}").width_ref.val.index == 11, ""); + static_assert(parse_dynamic_specs("{42}").width_ref.val.index == 42, ""); + static_assert(parse_dynamic_specs(".42").precision == 42, ""); + static_assert(parse_dynamic_specs(".{}").precision_ref.val.index == 11, ""); + static_assert(parse_dynamic_specs(".{42}").precision_ref.val.index == 42, ""); + static_assert(parse_dynamic_specs("d").type == 'd', ""); +} + +template <size_t N> +FMT_CONSTEXPR test_format_specs_handler check_specs(const char (&s)[N]) { + fmt::detail::specs_checker<test_format_specs_handler> checker( + test_format_specs_handler(), fmt::detail::type::double_type); + parse_format_specs(s, s + N, checker); + return checker; +} + +TEST(FormatTest, ConstexprSpecsChecker) { + typedef test_format_specs_handler handler; + static_assert(check_specs("<").align == fmt::align::left, ""); + static_assert(check_specs("*^").fill == '*', ""); + static_assert(check_specs("+").res == handler::PLUS, ""); + static_assert(check_specs("-").res == handler::MINUS, ""); + static_assert(check_specs(" ").res == handler::SPACE, ""); + static_assert(check_specs("#").res == handler::HASH, ""); + static_assert(check_specs("0").res == handler::ZERO, ""); + static_assert(check_specs("42").width == 42, ""); + static_assert(check_specs("{42}").width_ref.val.index == 42, ""); + static_assert(check_specs(".42").precision == 42, ""); + static_assert(check_specs(".{42}").precision_ref.val.index == 42, ""); + static_assert(check_specs("d").type == 'd', ""); + static_assert(check_specs("{<").res == handler::ERROR, ""); +} + +struct test_format_string_handler { + FMT_CONSTEXPR void on_text(const char*, const char*) {} + + FMT_CONSTEXPR int on_arg_id() { return 0; } + + template <typename T> FMT_CONSTEXPR int on_arg_id(T) { return 0; } + + FMT_CONSTEXPR void on_replacement_field(int, const char*) {} + + FMT_CONSTEXPR const char* on_format_specs(int, const char* begin, + const char*) { + return begin; + } + + FMT_CONSTEXPR void on_error(const char*) { error = true; } + + bool error = false; +}; + +template <size_t N> FMT_CONSTEXPR bool parse_string(const char (&s)[N]) { + test_format_string_handler h; + fmt::detail::parse_format_string<true>(fmt::string_view(s, N - 1), h); + return !h.error; +} + +TEST(FormatTest, ConstexprParseFormatString) { + static_assert(parse_string("foo"), ""); + static_assert(!parse_string("}"), ""); + static_assert(parse_string("{}"), ""); + static_assert(parse_string("{42}"), ""); + static_assert(parse_string("{foo}"), ""); + static_assert(parse_string("{:}"), ""); +} + +struct test_error_handler { + const char*& error; + + FMT_CONSTEXPR test_error_handler(const char*& err) : error(err) {} + + FMT_CONSTEXPR test_error_handler(const test_error_handler& other) + : error(other.error) {} + + FMT_CONSTEXPR void on_error(const char* message) { + if (!error) error = message; + } +}; + +FMT_CONSTEXPR size_t len(const char* s) { + size_t len = 0; + while (*s++) ++len; + return len; +} + +FMT_CONSTEXPR bool equal(const char* s1, const char* s2) { + if (!s1 || !s2) return s1 == s2; + while (*s1 && *s1 == *s2) { + ++s1; + ++s2; + } + return *s1 == *s2; +} + +template <typename... Args> +FMT_CONSTEXPR bool test_error(const char* fmt, const char* expected_error) { + const char* actual_error = nullptr; + string_view s(fmt, len(fmt)); + fmt::detail::format_string_checker<char, test_error_handler, Args...> checker( + s, test_error_handler(actual_error)); + fmt::detail::parse_format_string<true>(s, checker); + return equal(actual_error, expected_error); +} + +# define EXPECT_ERROR_NOARGS(fmt, error) \ + static_assert(test_error(fmt, error), "") +# define EXPECT_ERROR(fmt, error, ...) \ + static_assert(test_error<__VA_ARGS__>(fmt, error), "") + +TEST(FormatTest, FormatStringErrors) { + EXPECT_ERROR_NOARGS("foo", nullptr); + EXPECT_ERROR_NOARGS("}", "unmatched '}' in format string"); + EXPECT_ERROR("{0:s", "unknown format specifier", Date); +# if !FMT_MSC_VER || FMT_MSC_VER >= 1916 + // This causes an detail compiler error in MSVC2017. + EXPECT_ERROR("{:{<}", "invalid fill character '{'", int); + EXPECT_ERROR("{:10000000000}", "number is too big", int); + EXPECT_ERROR("{:.10000000000}", "number is too big", int); + EXPECT_ERROR_NOARGS("{:x}", "argument not found"); +# if FMT_DEPRECATED_NUMERIC_ALIGN + EXPECT_ERROR("{0:=5", "unknown format specifier", int); + EXPECT_ERROR("{:=}", "format specifier requires numeric argument", + const char*); +# endif + EXPECT_ERROR("{:+}", "format specifier requires numeric argument", + const char*); + EXPECT_ERROR("{:-}", "format specifier requires numeric argument", + const char*); + EXPECT_ERROR("{:#}", "format specifier requires numeric argument", + const char*); + EXPECT_ERROR("{: }", "format specifier requires numeric argument", + const char*); + EXPECT_ERROR("{:0}", "format specifier requires numeric argument", + const char*); + EXPECT_ERROR("{:+}", "format specifier requires signed argument", unsigned); + EXPECT_ERROR("{:-}", "format specifier requires signed argument", unsigned); + EXPECT_ERROR("{: }", "format specifier requires signed argument", unsigned); + EXPECT_ERROR("{:{}}", "argument not found", int); + EXPECT_ERROR("{:.{}}", "argument not found", double); + EXPECT_ERROR("{:.2}", "precision not allowed for this argument type", int); + EXPECT_ERROR("{:s}", "invalid type specifier", int); + EXPECT_ERROR("{:s}", "invalid type specifier", bool); + EXPECT_ERROR("{:s}", "invalid type specifier", char); + EXPECT_ERROR("{:+}", "invalid format specifier for char", char); + EXPECT_ERROR("{:s}", "invalid type specifier", double); + EXPECT_ERROR("{:d}", "invalid type specifier", const char*); + EXPECT_ERROR("{:d}", "invalid type specifier", std::string); + EXPECT_ERROR("{:s}", "invalid type specifier", void*); +# else + fmt::print("warning: constexpr is broken in this version of MSVC\n"); +# endif + EXPECT_ERROR("{foo", "compile-time checks don't support named arguments", + int); + EXPECT_ERROR_NOARGS("{10000000000}", "number is too big"); + EXPECT_ERROR_NOARGS("{0x}", "invalid format string"); + EXPECT_ERROR_NOARGS("{-}", "invalid format string"); + EXPECT_ERROR("{:{0x}}", "invalid format string", int); + EXPECT_ERROR("{:{-}}", "invalid format string", int); + EXPECT_ERROR("{:.{0x}}", "invalid format string", int); + EXPECT_ERROR("{:.{-}}", "invalid format string", int); + EXPECT_ERROR("{:.x}", "missing precision specifier", int); + EXPECT_ERROR_NOARGS("{}", "argument not found"); + EXPECT_ERROR("{1}", "argument not found", int); + EXPECT_ERROR("{1}{}", + "cannot switch from manual to automatic argument indexing", int, + int); + EXPECT_ERROR("{}{1}", + "cannot switch from automatic to manual argument indexing", int, + int); +} + +TEST(FormatTest, VFormatTo) { + typedef fmt::format_context context; + fmt::basic_format_arg<context> arg = fmt::detail::make_arg<context>(42); + fmt::basic_format_args<context> args(&arg, 1); + std::string s; + fmt::vformat_to(std::back_inserter(s), "{}", args); + EXPECT_EQ("42", s); + s.clear(); + fmt::vformat_to(std::back_inserter(s), FMT_STRING("{}"), args); + EXPECT_EQ("42", s); + + typedef fmt::wformat_context wcontext; + fmt::basic_format_arg<wcontext> warg = fmt::detail::make_arg<wcontext>(42); + fmt::basic_format_args<wcontext> wargs(&warg, 1); + std::wstring w; + fmt::vformat_to(std::back_inserter(w), L"{}", wargs); + EXPECT_EQ(L"42", w); + w.clear(); + fmt::vformat_to(std::back_inserter(w), FMT_STRING(L"{}"), wargs); + EXPECT_EQ(L"42", w); +} + +template <typename T> static std::string FmtToString(const T& t) { + return fmt::format(FMT_STRING("{}"), t); +} + +TEST(FormatTest, FmtStringInTemplate) { + EXPECT_EQ(FmtToString(1), "1"); + EXPECT_EQ(FmtToString(0), "0"); +} + +#endif // FMT_USE_CONSTEXPR + +TEST(FormatTest, CharTraitsIsNotAmbiguous) { + // Test that we don't inject detail names into the std namespace. + using namespace std; + char_traits<char>::char_type c; + (void)c; +#if __cplusplus >= 201103L + std::string s; + auto lval = begin(s); + (void)lval; +#endif +} + +#if __cplusplus > 201103L +struct custom_char { + int value; + custom_char() = default; + + template <typename T> + constexpr custom_char(T val) : value(static_cast<int>(val)) {} + + operator int() const { return value; } +}; + +int to_ascii(custom_char c) { return c; } + +FMT_BEGIN_NAMESPACE +template <> struct is_char<custom_char> : std::true_type {}; +FMT_END_NAMESPACE + +TEST(FormatTest, FormatCustomChar) { + const custom_char format[] = {'{', '}', 0}; + auto result = fmt::format(format, custom_char('x')); + EXPECT_EQ(result.size(), 1); + EXPECT_EQ(result[0], custom_char('x')); +} +#endif + +// Convert a char8_t string to std::string. Otherwise GTest will insist on +// inserting `char8_t` NTBS into a `char` stream which is disabled by P1423. +template <typename S> std::string from_u8str(const S& str) { + return std::string(str.begin(), str.end()); +} + +TEST(FormatTest, FormatUTF8Precision) { + using str_type = std::basic_string<fmt::detail::char8_type>; + str_type format(reinterpret_cast<const fmt::detail::char8_type*>(u8"{:.4}")); + str_type str(reinterpret_cast<const fmt::detail::char8_type*>( + u8"caf\u00e9s")); // cafĂ©s + auto result = fmt::format(format, str); + EXPECT_EQ(fmt::detail::count_code_points(result), 4); + EXPECT_EQ(result.size(), 5); + EXPECT_EQ(from_u8str(result), from_u8str(str.substr(0, 5))); +} + +struct check_back_appender {}; + +FMT_BEGIN_NAMESPACE +template <> struct formatter<check_back_appender> { + template <typename ParseContext> + auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { + return ctx.begin(); + } + + template <typename Context> + auto format(check_back_appender, Context& ctx) -> decltype(ctx.out()) { + auto out = ctx.out(); + static_assert(std::is_same<decltype(++out), decltype(out)&>::value, + "needs to satisfy weakly_incrementable"); + *out = 'y'; + return ++out; + } +}; +FMT_END_NAMESPACE + +TEST(FormatTest, BackInsertSlicing) { + EXPECT_EQ(fmt::format("{}", check_back_appender{}), "y"); +} diff --git a/contrib/libs/fmt/test/format-test/ya.make b/contrib/libs/fmt/test/format-test/ya.make new file mode 100644 index 0000000000..bc3d7c85c8 --- /dev/null +++ b/contrib/libs/fmt/test/format-test/ya.make @@ -0,0 +1,39 @@ +# Generated by devtools/yamaker. + +GTEST() + +WITHOUT_LICENSE_TEXTS() + +OWNER( + orivej + g:cpp-contrib +) + +LICENSE(MIT) + +ALLOCATOR(J) + +PEERDIR( + contrib/libs/fmt + contrib/libs/fmt/test +) + +NO_COMPILER_WARNINGS() + +NO_UTIL() + +CFLAGS( + -DFMT_LOCALE + -DFMT_SHARED + -DGTEST_HAS_STD_WSTRING=1 + -DGTEST_LANG_CXX11=0 + -D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING=1 +) + +SRCDIR(contrib/libs/fmt/test) + +SRCS( + format-test.cc +) + +END() diff --git a/contrib/libs/fmt/test/gtest-extra-test.cc b/contrib/libs/fmt/test/gtest-extra-test.cc new file mode 100644 index 0000000000..ea728607e8 --- /dev/null +++ b/contrib/libs/fmt/test/gtest-extra-test.cc @@ -0,0 +1,439 @@ +// Formatting library for C++ - tests of custom Google Test assertions +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#include "gtest-extra.h" + +#include <gtest/gtest-spi.h> + +#include <algorithm> +#include <cstring> +#include <memory> +#include <stdexcept> + +#if defined(_WIN32) && !defined(__MINGW32__) +# include <crtdbg.h> // for _CrtSetReportMode +#endif // _WIN32 + +#include "util.h" + +namespace { + +// This is used to suppress coverity warnings about untrusted values. +std::string sanitize(const std::string& s) { + std::string result; + for (std::string::const_iterator i = s.begin(), end = s.end(); i != end; ++i) + result.push_back(static_cast<char>(*i & 0xff)); + return result; +} + +// Tests that assertion macros evaluate their arguments exactly once. +class SingleEvaluationTest : public ::testing::Test { + protected: + SingleEvaluationTest() { + p_ = s_; + a_ = 0; + b_ = 0; + } + + static const char* const s_; + static const char* p_; + + static int a_; + static int b_; +}; + +const char* const SingleEvaluationTest::s_ = "01234"; +const char* SingleEvaluationTest::p_; +int SingleEvaluationTest::a_; +int SingleEvaluationTest::b_; + +void do_nothing() {} + +FMT_NORETURN void throw_exception() { throw std::runtime_error("test"); } + +FMT_NORETURN void throw_system_error() { + throw fmt::system_error(EDOM, "test"); +} + +// Tests that when EXPECT_THROW_MSG fails, it evaluates its message argument +// exactly once. +TEST_F(SingleEvaluationTest, FailedEXPECT_THROW_MSG) { + EXPECT_NONFATAL_FAILURE( + EXPECT_THROW_MSG(throw_exception(), std::exception, p_++), "01234"); + EXPECT_EQ(s_ + 1, p_); +} + +// Tests that when EXPECT_SYSTEM_ERROR fails, it evaluates its message argument +// exactly once. +TEST_F(SingleEvaluationTest, FailedEXPECT_SYSTEM_ERROR) { + EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, p_++), + "01234"); + EXPECT_EQ(s_ + 1, p_); +} + +// Tests that assertion arguments are evaluated exactly once. +TEST_F(SingleEvaluationTest, ExceptionTests) { + // successful EXPECT_THROW_MSG + EXPECT_THROW_MSG( + { // NOLINT + a_++; + throw_exception(); + }, + std::exception, (b_++, "test")); + EXPECT_EQ(1, a_); + EXPECT_EQ(1, b_); + + // failed EXPECT_THROW_MSG, throws different type + EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG( + { // NOLINT + a_++; + throw_exception(); + }, + std::logic_error, (b_++, "test")), + "throws a different type"); + EXPECT_EQ(2, a_); + EXPECT_EQ(2, b_); + + // failed EXPECT_THROW_MSG, throws an exception with different message + EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG( + { // NOLINT + a_++; + throw_exception(); + }, + std::exception, (b_++, "other")), + "throws an exception with a different message"); + EXPECT_EQ(3, a_); + EXPECT_EQ(3, b_); + + // failed EXPECT_THROW_MSG, throws nothing + EXPECT_NONFATAL_FAILURE( + EXPECT_THROW_MSG(a_++, std::exception, (b_++, "test")), "throws nothing"); + EXPECT_EQ(4, a_); + EXPECT_EQ(4, b_); +} + +TEST_F(SingleEvaluationTest, SystemErrorTests) { + // successful EXPECT_SYSTEM_ERROR + EXPECT_SYSTEM_ERROR( + { // NOLINT + a_++; + throw_system_error(); + }, + EDOM, (b_++, "test")); + EXPECT_EQ(1, a_); + EXPECT_EQ(1, b_); + + // failed EXPECT_SYSTEM_ERROR, throws different type + EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR( + { // NOLINT + a_++; + throw_exception(); + }, + EDOM, (b_++, "test")), + "throws a different type"); + EXPECT_EQ(2, a_); + EXPECT_EQ(2, b_); + + // failed EXPECT_SYSTEM_ERROR, throws an exception with different message + EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR( + { // NOLINT + a_++; + throw_system_error(); + }, + EDOM, (b_++, "other")), + "throws an exception with a different message"); + EXPECT_EQ(3, a_); + EXPECT_EQ(3, b_); + + // failed EXPECT_SYSTEM_ERROR, throws nothing + EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(a_++, EDOM, (b_++, "test")), + "throws nothing"); + EXPECT_EQ(4, a_); + EXPECT_EQ(4, b_); +} + +#if FMT_USE_FCNTL +// Tests that when EXPECT_WRITE fails, it evaluates its message argument +// exactly once. +TEST_F(SingleEvaluationTest, FailedEXPECT_WRITE) { + EXPECT_NONFATAL_FAILURE(EXPECT_WRITE(stdout, std::printf("test"), p_++), + "01234"); + EXPECT_EQ(s_ + 1, p_); +} + +// Tests that assertion arguments are evaluated exactly once. +TEST_F(SingleEvaluationTest, WriteTests) { + // successful EXPECT_WRITE + EXPECT_WRITE( + stdout, + { // NOLINT + a_++; + std::printf("test"); + }, + (b_++, "test")); + EXPECT_EQ(1, a_); + EXPECT_EQ(1, b_); + + // failed EXPECT_WRITE + EXPECT_NONFATAL_FAILURE(EXPECT_WRITE( + stdout, + { // NOLINT + a_++; + std::printf("test"); + }, + (b_++, "other")), + "Actual: test"); + EXPECT_EQ(2, a_); + EXPECT_EQ(2, b_); +} + +// Tests EXPECT_WRITE. +TEST(ExpectTest, EXPECT_WRITE) { + EXPECT_WRITE(stdout, do_nothing(), ""); + EXPECT_WRITE(stdout, std::printf("test"), "test"); + EXPECT_WRITE(stderr, std::fprintf(stderr, "test"), "test"); + EXPECT_NONFATAL_FAILURE(EXPECT_WRITE(stdout, std::printf("that"), "this"), + "Expected: this\n" + " Actual: that"); +} + +TEST(StreamingAssertionsTest, EXPECT_WRITE) { + EXPECT_WRITE(stdout, std::printf("test"), "test") << "unexpected failure"; + EXPECT_NONFATAL_FAILURE(EXPECT_WRITE(stdout, std::printf("test"), "other") + << "expected failure", + "expected failure"); +} +#endif // FMT_USE_FCNTL + +// Tests that the compiler will not complain about unreachable code in the +// EXPECT_THROW_MSG macro. +TEST(ExpectThrowTest, DoesNotGenerateUnreachableCodeWarning) { + int n = 0; + using std::runtime_error; + EXPECT_THROW_MSG(throw runtime_error(""), runtime_error, ""); + EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG(n++, runtime_error, ""), ""); + EXPECT_NONFATAL_FAILURE(EXPECT_THROW_MSG(throw 1, runtime_error, ""), ""); + EXPECT_NONFATAL_FAILURE( + EXPECT_THROW_MSG(throw runtime_error("a"), runtime_error, "b"), ""); +} + +// Tests that the compiler will not complain about unreachable code in the +// EXPECT_SYSTEM_ERROR macro. +TEST(ExpectSystemErrorTest, DoesNotGenerateUnreachableCodeWarning) { + int n = 0; + EXPECT_SYSTEM_ERROR(throw fmt::system_error(EDOM, "test"), EDOM, "test"); + EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(n++, EDOM, ""), ""); + EXPECT_NONFATAL_FAILURE(EXPECT_SYSTEM_ERROR(throw 1, EDOM, ""), ""); + EXPECT_NONFATAL_FAILURE( + EXPECT_SYSTEM_ERROR(throw fmt::system_error(EDOM, "aaa"), EDOM, "bbb"), + ""); +} + +TEST(AssertionSyntaxTest, ExceptionAssertionBehavesLikeSingleStatement) { + if (::testing::internal::AlwaysFalse()) + EXPECT_THROW_MSG(do_nothing(), std::exception, ""); + + if (::testing::internal::AlwaysTrue()) + EXPECT_THROW_MSG(throw_exception(), std::exception, "test"); + else + do_nothing(); +} + +TEST(AssertionSyntaxTest, SystemErrorAssertionBehavesLikeSingleStatement) { + if (::testing::internal::AlwaysFalse()) + EXPECT_SYSTEM_ERROR(do_nothing(), EDOM, ""); + + if (::testing::internal::AlwaysTrue()) + EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "test"); + else + do_nothing(); +} + +TEST(AssertionSyntaxTest, WriteAssertionBehavesLikeSingleStatement) { + if (::testing::internal::AlwaysFalse()) + EXPECT_WRITE(stdout, std::printf("x"), "x"); + + if (::testing::internal::AlwaysTrue()) + EXPECT_WRITE(stdout, std::printf("x"), "x"); + else + do_nothing(); +} + +// Tests EXPECT_THROW_MSG. +TEST(ExpectTest, EXPECT_THROW_MSG) { + EXPECT_THROW_MSG(throw_exception(), std::exception, "test"); + EXPECT_NONFATAL_FAILURE( + EXPECT_THROW_MSG(throw_exception(), std::logic_error, "test"), + "Expected: throw_exception() throws an exception of " + "type std::logic_error.\n Actual: it throws a different type."); + EXPECT_NONFATAL_FAILURE( + EXPECT_THROW_MSG(do_nothing(), std::exception, "test"), + "Expected: do_nothing() throws an exception of type std::exception.\n" + " Actual: it throws nothing."); + EXPECT_NONFATAL_FAILURE( + EXPECT_THROW_MSG(throw_exception(), std::exception, "other"), + "throw_exception() throws an exception with a different message.\n" + "Expected: other\n" + " Actual: test"); +} + +// Tests EXPECT_SYSTEM_ERROR. +TEST(ExpectTest, EXPECT_SYSTEM_ERROR) { + EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "test"); + EXPECT_NONFATAL_FAILURE( + EXPECT_SYSTEM_ERROR(throw_exception(), EDOM, "test"), + "Expected: throw_exception() throws an exception of " + "type fmt::system_error.\n Actual: it throws a different type."); + EXPECT_NONFATAL_FAILURE( + EXPECT_SYSTEM_ERROR(do_nothing(), EDOM, "test"), + "Expected: do_nothing() throws an exception of type fmt::system_error.\n" + " Actual: it throws nothing."); + EXPECT_NONFATAL_FAILURE( + EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "other"), + fmt::format( + "throw_system_error() throws an exception with a different message.\n" + "Expected: {}\n" + " Actual: {}", + format_system_error(EDOM, "other"), + format_system_error(EDOM, "test"))); +} + +TEST(StreamingAssertionsTest, EXPECT_THROW_MSG) { + EXPECT_THROW_MSG(throw_exception(), std::exception, "test") + << "unexpected failure"; + EXPECT_NONFATAL_FAILURE( + EXPECT_THROW_MSG(throw_exception(), std::exception, "other") + << "expected failure", + "expected failure"); +} + +TEST(StreamingAssertionsTest, EXPECT_SYSTEM_ERROR) { + EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "test") + << "unexpected failure"; + EXPECT_NONFATAL_FAILURE( + EXPECT_SYSTEM_ERROR(throw_system_error(), EDOM, "other") + << "expected failure", + "expected failure"); +} + +TEST(UtilTest, FormatSystemError) { + fmt::memory_buffer out; + fmt::format_system_error(out, EDOM, "test message"); + EXPECT_EQ(to_string(out), format_system_error(EDOM, "test message")); +} + +#if FMT_USE_FCNTL + +using fmt::buffered_file; +using fmt::error_code; +using fmt::file; + +TEST(ErrorCodeTest, Ctor) { + EXPECT_EQ(error_code().get(), 0); + EXPECT_EQ(error_code(42).get(), 42); +} + +TEST(OutputRedirectTest, ScopedRedirect) { + file read_end, write_end; + file::pipe(read_end, write_end); + { + buffered_file file(write_end.fdopen("w")); + std::fprintf(file.get(), "[[["); + { + OutputRedirect redir(file.get()); + std::fprintf(file.get(), "censored"); + } + std::fprintf(file.get(), "]]]"); + } + EXPECT_READ(read_end, "[[[]]]"); +} + +// Test that OutputRedirect handles errors in flush correctly. +TEST(OutputRedirectTest, FlushErrorInCtor) { + file read_end, write_end; + file::pipe(read_end, write_end); + int write_fd = write_end.descriptor(); + file write_copy = write_end.dup(write_fd); + buffered_file f = write_end.fdopen("w"); + // Put a character in a file buffer. + EXPECT_EQ('x', fputc('x', f.get())); + FMT_POSIX(close(write_fd)); + std::unique_ptr<OutputRedirect> redir{nullptr}; + EXPECT_SYSTEM_ERROR_NOASSERT(redir.reset(new OutputRedirect(f.get())), EBADF, + "cannot flush stream"); + redir.reset(nullptr); + write_copy.dup2(write_fd); // "undo" close or dtor will fail +} + +TEST(OutputRedirectTest, DupErrorInCtor) { + buffered_file f = open_buffered_file(); + int fd = (f.fileno)(); + file copy = file::dup(fd); + FMT_POSIX(close(fd)); + std::unique_ptr<OutputRedirect> redir{nullptr}; + EXPECT_SYSTEM_ERROR_NOASSERT( + redir.reset(new OutputRedirect(f.get())), EBADF, + fmt::format("cannot duplicate file descriptor {}", fd)); + copy.dup2(fd); // "undo" close or dtor will fail +} + +TEST(OutputRedirectTest, RestoreAndRead) { + file read_end, write_end; + file::pipe(read_end, write_end); + buffered_file file(write_end.fdopen("w")); + std::fprintf(file.get(), "[[["); + OutputRedirect redir(file.get()); + std::fprintf(file.get(), "censored"); + EXPECT_EQ("censored", sanitize(redir.restore_and_read())); + EXPECT_EQ("", sanitize(redir.restore_and_read())); + std::fprintf(file.get(), "]]]"); + file = buffered_file(); + EXPECT_READ(read_end, "[[[]]]"); +} + +// Test that OutputRedirect handles errors in flush correctly. +TEST(OutputRedirectTest, FlushErrorInRestoreAndRead) { + file read_end, write_end; + file::pipe(read_end, write_end); + int write_fd = write_end.descriptor(); + file write_copy = write_end.dup(write_fd); + buffered_file f = write_end.fdopen("w"); + OutputRedirect redir(f.get()); + // Put a character in a file buffer. + EXPECT_EQ('x', fputc('x', f.get())); + FMT_POSIX(close(write_fd)); + EXPECT_SYSTEM_ERROR_NOASSERT(redir.restore_and_read(), EBADF, + "cannot flush stream"); + write_copy.dup2(write_fd); // "undo" close or dtor will fail +} + +TEST(OutputRedirectTest, ErrorInDtor) { + file read_end, write_end; + file::pipe(read_end, write_end); + int write_fd = write_end.descriptor(); + file write_copy = write_end.dup(write_fd); + buffered_file f = write_end.fdopen("w"); + std::unique_ptr<OutputRedirect> redir(new OutputRedirect(f.get())); + // Put a character in a file buffer. + EXPECT_EQ('x', fputc('x', f.get())); + EXPECT_WRITE( + stderr, + { + // The close function must be called inside EXPECT_WRITE, + // otherwise the system may recycle closed file descriptor when + // redirecting the output in EXPECT_STDERR and the second close + // will break output redirection. + FMT_POSIX(close(write_fd)); + SUPPRESS_ASSERT(redir.reset(nullptr)); + }, + format_system_error(EBADF, "cannot flush stream")); + write_copy.dup2(write_fd); // "undo" close or dtor of buffered_file will fail +} + +#endif // FMT_USE_FILE_DESCRIPTORS + +} // namespace diff --git a/contrib/libs/fmt/test/gtest-extra-test/ya.make b/contrib/libs/fmt/test/gtest-extra-test/ya.make new file mode 100644 index 0000000000..b8d6cf8316 --- /dev/null +++ b/contrib/libs/fmt/test/gtest-extra-test/ya.make @@ -0,0 +1,37 @@ +# Generated by devtools/yamaker. + +GTEST() + +WITHOUT_LICENSE_TEXTS() + +OWNER( + orivej + g:cpp-contrib +) + +LICENSE(MIT) + +PEERDIR( + contrib/libs/fmt + contrib/libs/fmt/test +) + +NO_COMPILER_WARNINGS() + +NO_UTIL() + +CFLAGS( + -DFMT_LOCALE + -DFMT_SHARED + -DGTEST_HAS_STD_WSTRING=1 + -DGTEST_LANG_CXX11=0 + -D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING=1 +) + +SRCDIR(contrib/libs/fmt/test) + +SRCS( + gtest-extra-test.cc +) + +END() diff --git a/contrib/libs/fmt/test/gtest-extra.cc b/contrib/libs/fmt/test/gtest-extra.cc new file mode 100644 index 0000000000..58628a8a98 --- /dev/null +++ b/contrib/libs/fmt/test/gtest-extra.cc @@ -0,0 +1,87 @@ +// Formatting library for C++ - custom Google Test assertions +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#include "gtest-extra.h" + +#if FMT_USE_FCNTL + +using fmt::file; + +void OutputRedirect::flush() { +# if EOF != -1 +# error "FMT_RETRY assumes return value of -1 indicating failure" +# endif + int result = 0; + FMT_RETRY(result, fflush(file_)); + if (result != 0) throw fmt::system_error(errno, "cannot flush stream"); +} + +void OutputRedirect::restore() { + if (original_.descriptor() == -1) return; // Already restored. + flush(); + // Restore the original file. + original_.dup2(FMT_POSIX(fileno(file_))); + original_.close(); +} + +OutputRedirect::OutputRedirect(FILE* f) : file_(f) { + flush(); + int fd = FMT_POSIX(fileno(f)); + // Create a file object referring to the original file. + original_ = file::dup(fd); + // Create a pipe. + file write_end; + file::pipe(read_end_, write_end); + // Connect the passed FILE object to the write end of the pipe. + write_end.dup2(fd); +} + +OutputRedirect::~OutputRedirect() FMT_NOEXCEPT { + try { + restore(); + } catch (const std::exception& e) { + std::fputs(e.what(), stderr); + } +} + +std::string OutputRedirect::restore_and_read() { + // Restore output. + restore(); + + // Read everything from the pipe. + std::string content; + if (read_end_.descriptor() == -1) return content; // Already read. + enum { BUFFER_SIZE = 4096 }; + char buffer[BUFFER_SIZE]; + size_t count = 0; + do { + count = read_end_.read(buffer, BUFFER_SIZE); + content.append(buffer, count); + } while (count != 0); + read_end_.close(); + return content; +} + +std::string read(file& f, size_t count) { + std::string buffer(count, '\0'); + size_t n = 0, offset = 0; + do { + n = f.read(&buffer[offset], count - offset); + // We can't read more than size_t bytes since count has type size_t. + offset += n; + } while (offset < count && n != 0); + buffer.resize(offset); + return buffer; +} + +#endif // FMT_USE_FCNTL + +std::string format_system_error(int error_code, fmt::string_view message) { + fmt::memory_buffer out; + format_system_error(out, error_code, message); + return to_string(out); +} diff --git a/contrib/libs/fmt/test/gtest-extra.h b/contrib/libs/fmt/test/gtest-extra.h new file mode 100644 index 0000000000..36be158bbb --- /dev/null +++ b/contrib/libs/fmt/test/gtest-extra.h @@ -0,0 +1,163 @@ +// Formatting library for C++ - custom Google Test assertions +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#ifndef FMT_GTEST_EXTRA_H_ +#define FMT_GTEST_EXTRA_H_ + +#include <string> + +#include "fmt/os.h" +#include <gmock/gmock.h> + +#define FMT_TEST_THROW_(statement, expected_exception, expected_message, fail) \ + GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ + if (::testing::AssertionResult gtest_ar = ::testing::AssertionSuccess()) { \ + std::string gtest_expected_message = expected_message; \ + bool gtest_caught_expected = false; \ + try { \ + GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \ + } catch (expected_exception const& e) { \ + if (gtest_expected_message != e.what()) { \ + gtest_ar << #statement \ + " throws an exception with a different message.\n" \ + << "Expected: " << gtest_expected_message << "\n" \ + << " Actual: " << e.what(); \ + goto GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__); \ + } \ + gtest_caught_expected = true; \ + } catch (...) { \ + gtest_ar << "Expected: " #statement \ + " throws an exception of type " #expected_exception \ + ".\n Actual: it throws a different type."; \ + goto GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__); \ + } \ + if (!gtest_caught_expected) { \ + gtest_ar << "Expected: " #statement \ + " throws an exception of type " #expected_exception \ + ".\n Actual: it throws nothing."; \ + goto GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__); \ + } \ + } else \ + GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__) \ + : fail(gtest_ar.failure_message()) + +// Tests that the statement throws the expected exception and the exception's +// what() method returns expected message. +#define EXPECT_THROW_MSG(statement, expected_exception, expected_message) \ + FMT_TEST_THROW_(statement, expected_exception, expected_message, \ + GTEST_NONFATAL_FAILURE_) + +std::string format_system_error(int error_code, fmt::string_view message); + +#define EXPECT_SYSTEM_ERROR(statement, error_code, message) \ + EXPECT_THROW_MSG(statement, fmt::system_error, \ + format_system_error(error_code, message)) + +#if FMT_USE_FCNTL + +// Captures file output by redirecting it to a pipe. +// The output it can handle is limited by the pipe capacity. +class OutputRedirect { + private: + FILE* file_; + fmt::file original_; // Original file passed to redirector. + fmt::file read_end_; // Read end of the pipe where the output is redirected. + + GTEST_DISALLOW_COPY_AND_ASSIGN_(OutputRedirect); + + void flush(); + void restore(); + + public: + explicit OutputRedirect(FILE* file); + ~OutputRedirect() FMT_NOEXCEPT; + + // Restores the original file, reads output from the pipe into a string + // and returns it. + std::string restore_and_read(); +}; + +# define FMT_TEST_WRITE_(statement, expected_output, file, fail) \ + GTEST_AMBIGUOUS_ELSE_BLOCKER_ \ + if (::testing::AssertionResult gtest_ar = ::testing::AssertionSuccess()) { \ + std::string gtest_expected_output = expected_output; \ + OutputRedirect gtest_redir(file); \ + GTEST_SUPPRESS_UNREACHABLE_CODE_WARNING_BELOW_(statement); \ + std::string gtest_output = gtest_redir.restore_and_read(); \ + if (gtest_output != gtest_expected_output) { \ + gtest_ar << #statement " produces different output.\n" \ + << "Expected: " << gtest_expected_output << "\n" \ + << " Actual: " << gtest_output; \ + goto GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__); \ + } \ + } else \ + GTEST_CONCAT_TOKEN_(gtest_label_testthrow_, __LINE__) \ + : fail(gtest_ar.failure_message()) + +// Tests that the statement writes the expected output to file. +# define EXPECT_WRITE(file, statement, expected_output) \ + FMT_TEST_WRITE_(statement, expected_output, file, GTEST_NONFATAL_FAILURE_) + +# ifdef _MSC_VER +#include <crtdbg.h> + +// Suppresses Windows assertions on invalid file descriptors, making +// POSIX functions return proper error codes instead of crashing on Windows. +class SuppressAssert { + private: + _invalid_parameter_handler original_handler_; + int original_report_mode_; + + static void handle_invalid_parameter(const wchar_t*, const wchar_t*, + const wchar_t*, unsigned, uintptr_t) {} + + public: + SuppressAssert() + : original_handler_( + _set_invalid_parameter_handler(handle_invalid_parameter)), + original_report_mode_(_CrtSetReportMode(_CRT_ASSERT, 0)) {} + ~SuppressAssert() { + _set_invalid_parameter_handler(original_handler_); + _CrtSetReportMode(_CRT_ASSERT, original_report_mode_); + } +}; + +# define SUPPRESS_ASSERT(statement) \ + { \ + SuppressAssert sa; \ + statement; \ + } +# else +# define SUPPRESS_ASSERT(statement) statement +# endif // _MSC_VER + +# define EXPECT_SYSTEM_ERROR_NOASSERT(statement, error_code, message) \ + EXPECT_SYSTEM_ERROR(SUPPRESS_ASSERT(statement), error_code, message) + +// Attempts to read count characters from a file. +std::string read(fmt::file& f, size_t count); + +# define EXPECT_READ(file, expected_content) \ + EXPECT_EQ(expected_content, \ + read(file, fmt::string_view(expected_content).size())) + +#else +# define EXPECT_WRITE(file, statement, expected_output) \ + do { \ + (void)(file); \ + (void)(statement); \ + (void)(expected_output); \ + SUCCEED(); \ + } while (false) +#endif // FMT_USE_FCNTL + +template <typename Mock> struct ScopedMock : testing::StrictMock<Mock> { + ScopedMock() { Mock::instance = this; } + ~ScopedMock() { Mock::instance = nullptr; } +}; + +#endif // FMT_GTEST_EXTRA_H_ diff --git a/contrib/libs/fmt/test/header-only-test.cc b/contrib/libs/fmt/test/header-only-test.cc new file mode 100644 index 0000000000..674dab993d --- /dev/null +++ b/contrib/libs/fmt/test/header-only-test.cc @@ -0,0 +1,3 @@ +// Header-only configuration test + +#include "fmt/core.h" diff --git a/contrib/libs/fmt/test/header-only-test/ya.make b/contrib/libs/fmt/test/header-only-test/ya.make new file mode 100644 index 0000000000..cfbc290203 --- /dev/null +++ b/contrib/libs/fmt/test/header-only-test/ya.make @@ -0,0 +1,37 @@ +# Generated by devtools/yamaker. + +GTEST() + +WITHOUT_LICENSE_TEXTS() + +OWNER( + orivej + g:cpp-contrib +) + +LICENSE(MIT) + +PEERDIR( + contrib/libs/fmt + contrib/libs/fmt/test +) + +NO_COMPILER_WARNINGS() + +NO_UTIL() + +CFLAGS( + -DFMT_HEADER_ONLY=1 + -DGTEST_HAS_STD_WSTRING=1 + -DGTEST_LANG_CXX11=0 + -D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING=1 +) + +SRCDIR(contrib/libs/fmt/test) + +SRCS( + header-only-test.cc + header-only-test2.cc +) + +END() diff --git a/contrib/libs/fmt/test/header-only-test2.cc b/contrib/libs/fmt/test/header-only-test2.cc new file mode 100644 index 0000000000..ea90b604e4 --- /dev/null +++ b/contrib/libs/fmt/test/header-only-test2.cc @@ -0,0 +1,3 @@ +// Additional translation unit for the header-only configuration test + +#include "fmt/core.h" diff --git a/contrib/libs/fmt/test/locale-test.cc b/contrib/libs/fmt/test/locale-test.cc new file mode 100644 index 0000000000..7d776b4290 --- /dev/null +++ b/contrib/libs/fmt/test/locale-test.cc @@ -0,0 +1,160 @@ +// Formatting library for C++ - locale tests +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#include "fmt/locale.h" + +#include <complex> + +#include <gmock/gmock.h> + +using fmt::detail::max_value; + +#ifndef FMT_STATIC_THOUSANDS_SEPARATOR +template <typename Char> struct numpunct : std::numpunct<Char> { + protected: + Char do_decimal_point() const FMT_OVERRIDE { return '?'; } + std::string do_grouping() const FMT_OVERRIDE { return "\03"; } + Char do_thousands_sep() const FMT_OVERRIDE { return '~'; } +}; + +template <typename Char> struct no_grouping : std::numpunct<Char> { + protected: + Char do_decimal_point() const FMT_OVERRIDE { return '.'; } + std::string do_grouping() const FMT_OVERRIDE { return ""; } + Char do_thousands_sep() const FMT_OVERRIDE { return ','; } +}; + +template <typename Char> struct special_grouping : std::numpunct<Char> { + protected: + Char do_decimal_point() const FMT_OVERRIDE { return '.'; } + std::string do_grouping() const FMT_OVERRIDE { return "\03\02"; } + Char do_thousands_sep() const FMT_OVERRIDE { return ','; } +}; + +template <typename Char> struct small_grouping : std::numpunct<Char> { + protected: + Char do_decimal_point() const FMT_OVERRIDE { return '.'; } + std::string do_grouping() const FMT_OVERRIDE { return "\01"; } + Char do_thousands_sep() const FMT_OVERRIDE { return ','; } +}; + +TEST(LocaleTest, DoubleDecimalPoint) { + std::locale loc(std::locale(), new numpunct<char>()); + EXPECT_EQ("1?23", fmt::format(loc, "{:L}", 1.23)); +} + +TEST(LocaleTest, Format) { + std::locale loc(std::locale(), new numpunct<char>()); + EXPECT_EQ("1234567", fmt::format(std::locale(), "{:L}", 1234567)); + EXPECT_EQ("1~234~567", fmt::format(loc, "{:L}", 1234567)); + EXPECT_EQ("-1~234~567", fmt::format(loc, "{:L}", -1234567)); + EXPECT_EQ("-256", fmt::format(loc, "{:L}", -256)); + fmt::format_arg_store<fmt::format_context, int> as{1234567}; + EXPECT_EQ("1~234~567", fmt::vformat(loc, "{:L}", fmt::format_args(as))); + std::string s; + fmt::format_to(std::back_inserter(s), loc, "{:L}", 1234567); + EXPECT_EQ("1~234~567", s); + + std::locale no_grouping_loc(std::locale(), new no_grouping<char>()); + EXPECT_EQ("1234567", fmt::format(no_grouping_loc, "{:L}", 1234567)); + + std::locale special_grouping_loc(std::locale(), new special_grouping<char>()); + EXPECT_EQ("1,23,45,678", fmt::format(special_grouping_loc, "{:L}", 12345678)); + EXPECT_EQ("12,345", fmt::format(special_grouping_loc, "{:L}", 12345)); + + std::locale small_grouping_loc(std::locale(), new small_grouping<char>()); + EXPECT_EQ("4,2,9,4,9,6,7,2,9,5", + fmt::format(small_grouping_loc, "{:L}", max_value<uint32_t>())); +} + +TEST(LocaleTest, FormatDetaultAlign) { + std::locale special_grouping_loc(std::locale(), new special_grouping<char>()); + EXPECT_EQ(" 12,345", fmt::format(special_grouping_loc, "{:8L}", 12345)); +} + +TEST(LocaleTest, WFormat) { + std::locale loc(std::locale(), new numpunct<wchar_t>()); + EXPECT_EQ(L"1234567", fmt::format(std::locale(), L"{:L}", 1234567)); + EXPECT_EQ(L"1~234~567", fmt::format(loc, L"{:L}", 1234567)); + fmt::format_arg_store<fmt::wformat_context, int> as{1234567}; + EXPECT_EQ(L"1~234~567", fmt::vformat(loc, L"{:L}", fmt::wformat_args(as))); + EXPECT_EQ(L"1234567", fmt::format(std::locale("C"), L"{:L}", 1234567)); + + std::locale no_grouping_loc(std::locale(), new no_grouping<wchar_t>()); + EXPECT_EQ(L"1234567", fmt::format(no_grouping_loc, L"{:L}", 1234567)); + + std::locale special_grouping_loc(std::locale(), + new special_grouping<wchar_t>()); + EXPECT_EQ(L"1,23,45,678", + fmt::format(special_grouping_loc, L"{:L}", 12345678)); + + std::locale small_grouping_loc(std::locale(), new small_grouping<wchar_t>()); + EXPECT_EQ(L"4,2,9,4,9,6,7,2,9,5", + fmt::format(small_grouping_loc, L"{:L}", max_value<uint32_t>())); +} + +TEST(LocaleTest, DoubleFormatter) { + auto loc = std::locale(std::locale(), new special_grouping<char>()); + auto f = fmt::formatter<int>(); + auto parse_ctx = fmt::format_parse_context("L"); + f.parse(parse_ctx); + char buf[10] = {}; + fmt::basic_format_context<char*, char> format_ctx( + buf, {}, fmt::detail::locale_ref(loc)); + *f.format(12345, format_ctx) = 0; + EXPECT_STREQ("12,345", buf); +} + +FMT_BEGIN_NAMESPACE +template <class charT> struct formatter<std::complex<double>, charT> { + private: + detail::dynamic_format_specs<char> specs_; + + public: + typename basic_format_parse_context<charT>::iterator parse( + basic_format_parse_context<charT>& ctx) { + using handler_type = + detail::dynamic_specs_handler<basic_format_parse_context<charT>>; + detail::specs_checker<handler_type> handler(handler_type(specs_, ctx), + detail::type::string_type); + auto it = parse_format_specs(ctx.begin(), ctx.end(), handler); + detail::parse_float_type_spec(specs_, ctx.error_handler()); + return it; + } + + template <class FormatContext> + typename FormatContext::iterator format(const std::complex<double>& c, + FormatContext& ctx) { + detail::handle_dynamic_spec<detail::precision_checker>( + specs_.precision, specs_.precision_ref, ctx); + auto format_specs = std::string(); + if (specs_.precision > 0) + format_specs = fmt::format(".{}", specs_.precision); + if (specs_.type) + format_specs += specs_.type; + auto real = fmt::format(ctx.locale().template get<std::locale>(), + "{:" + format_specs + "}", c.real()); + auto imag = fmt::format(ctx.locale().template get<std::locale>(), + "{:" + format_specs + "}", c.imag()); + auto fill_align_width = std::string(); + if (specs_.width > 0) + fill_align_width = fmt::format(">{}", specs_.width); + return format_to( + ctx.out(), "{:" + fill_align_width + "}", + fmt::format(c.real() != 0 ? "({0}+{1}i)" : "{1}i", real, imag)); + } +}; +FMT_END_NAMESPACE + +TEST(FormatTest, Complex) { + std::string s = fmt::format("{}", std::complex<double>(1, 2)); + EXPECT_EQ(s, "(1+2i)"); + EXPECT_EQ(fmt::format("{:.2f}", std::complex<double>(1, 2)), "(1.00+2.00i)"); + EXPECT_EQ(fmt::format("{:8}", std::complex<double>(1, 2)), " (1+2i)"); +} + +#endif // FMT_STATIC_THOUSANDS_SEPARATOR diff --git a/contrib/libs/fmt/test/locale-test/ya.make b/contrib/libs/fmt/test/locale-test/ya.make new file mode 100644 index 0000000000..06a53a939c --- /dev/null +++ b/contrib/libs/fmt/test/locale-test/ya.make @@ -0,0 +1,37 @@ +# Generated by devtools/yamaker. + +GTEST() + +WITHOUT_LICENSE_TEXTS() + +OWNER( + orivej + g:cpp-contrib +) + +LICENSE(MIT) + +PEERDIR( + contrib/libs/fmt + contrib/libs/fmt/test +) + +NO_COMPILER_WARNINGS() + +NO_UTIL() + +CFLAGS( + -DFMT_LOCALE + -DFMT_SHARED + -DGTEST_HAS_STD_WSTRING=1 + -DGTEST_LANG_CXX11=0 + -D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING=1 +) + +SRCDIR(contrib/libs/fmt/test) + +SRCS( + locale-test.cc +) + +END() diff --git a/contrib/libs/fmt/test/mock-allocator.h b/contrib/libs/fmt/test/mock-allocator.h new file mode 100644 index 0000000000..dfc13feee7 --- /dev/null +++ b/contrib/libs/fmt/test/mock-allocator.h @@ -0,0 +1,60 @@ +// Formatting library for C++ - mock allocator +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#ifndef FMT_MOCK_ALLOCATOR_H_ +#define FMT_MOCK_ALLOCATOR_H_ + +#include "fmt/format.h" +#include <gmock/gmock.h> + +template <typename T> class mock_allocator { + public: + mock_allocator() {} + mock_allocator(const mock_allocator&) {} + typedef T value_type; + MOCK_METHOD1_T(allocate, T*(size_t n)); + MOCK_METHOD2_T(deallocate, void(T* p, size_t n)); +}; + +template <typename Allocator> class allocator_ref { + private: + Allocator* alloc_; + + void move(allocator_ref& other) { + alloc_ = other.alloc_; + other.alloc_ = nullptr; + } + + public: + typedef typename Allocator::value_type value_type; + + explicit allocator_ref(Allocator* alloc = nullptr) : alloc_(alloc) {} + + allocator_ref(const allocator_ref& other) : alloc_(other.alloc_) {} + allocator_ref(allocator_ref&& other) { move(other); } + + allocator_ref& operator=(allocator_ref&& other) { + assert(this != &other); + move(other); + return *this; + } + + allocator_ref& operator=(const allocator_ref& other) { + alloc_ = other.alloc_; + return *this; + } + + public: + Allocator* get() const { return alloc_; } + + value_type* allocate(size_t n) { + return std::allocator_traits<Allocator>::allocate(*alloc_, n); + } + void deallocate(value_type* p, size_t n) { alloc_->deallocate(p, n); } +}; + +#endif // FMT_MOCK_ALLOCATOR_H_ diff --git a/contrib/libs/fmt/test/os-test.cc b/contrib/libs/fmt/test/os-test.cc new file mode 100644 index 0000000000..359b5ff8ce --- /dev/null +++ b/contrib/libs/fmt/test/os-test.cc @@ -0,0 +1,532 @@ +// Formatting library for C++ - tests of the OS-specific functionality +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#include "fmt/os.h" + +#include <cstdlib> // std::exit +#include <cstring> +#include <memory> + +#include "gtest-extra.h" +#include "util.h" + +#ifdef fileno +# undef fileno +#endif + +using fmt::buffered_file; +using fmt::error_code; + +#ifdef _WIN32 + +# include <windows.h> + +TEST(UtilTest, UTF16ToUTF8) { + std::string s = "ŃжОĐș"; + fmt::detail::utf16_to_utf8 u(L"\x0451\x0436\x0438\x043A"); + EXPECT_EQ(s, u.str()); + EXPECT_EQ(s.size(), u.size()); +} + +TEST(UtilTest, UTF16ToUTF8EmptyString) { + std::string s = ""; + fmt::detail::utf16_to_utf8 u(L""); + EXPECT_EQ(s, u.str()); + EXPECT_EQ(s.size(), u.size()); +} + +template <typename Converter, typename Char> +void check_utf_conversion_error( + const char* message, + fmt::basic_string_view<Char> str = fmt::basic_string_view<Char>(0, 1)) { + fmt::memory_buffer out; + fmt::detail::format_windows_error(out, ERROR_INVALID_PARAMETER, message); + fmt::system_error error(0, ""); + try { + (Converter)(str); + } catch (const fmt::system_error& e) { + error = e; + } + EXPECT_EQ(ERROR_INVALID_PARAMETER, error.error_code()); + EXPECT_EQ(fmt::to_string(out), error.what()); +} + +TEST(UtilTest, UTF16ToUTF8Error) { + check_utf_conversion_error<fmt::detail::utf16_to_utf8, wchar_t>( + "cannot convert string from UTF-16 to UTF-8"); +} + +TEST(UtilTest, UTF16ToUTF8Convert) { + fmt::detail::utf16_to_utf8 u; + EXPECT_EQ(ERROR_INVALID_PARAMETER, u.convert(fmt::wstring_view(0, 1))); + EXPECT_EQ(ERROR_INVALID_PARAMETER, + u.convert(fmt::wstring_view(L"foo", INT_MAX + 1u))); +} + +TEST(UtilTest, FormatWindowsError) { + LPWSTR message = 0; + FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | + FORMAT_MESSAGE_IGNORE_INSERTS, + 0, ERROR_FILE_EXISTS, + MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), + reinterpret_cast<LPWSTR>(&message), 0, 0); + fmt::detail::utf16_to_utf8 utf8_message(message); + LocalFree(message); + fmt::memory_buffer actual_message; + fmt::detail::format_windows_error(actual_message, ERROR_FILE_EXISTS, "test"); + EXPECT_EQ(fmt::format("test: {}", utf8_message.str()), + fmt::to_string(actual_message)); + actual_message.resize(0); + auto max_size = fmt::detail::max_value<size_t>() / 2; + fmt::detail::format_windows_error(actual_message, ERROR_FILE_EXISTS, + fmt::string_view(nullptr, max_size)); + EXPECT_EQ(fmt::format("error {}", ERROR_FILE_EXISTS), + fmt::to_string(actual_message)); +} + +TEST(UtilTest, FormatLongWindowsError) { + LPWSTR message = 0; + // this error code is not available on all Windows platforms and + // Windows SDKs, so do not fail the test if the error string cannot + // be retrieved. + const int provisioning_not_allowed = + 0x80284013L /*TBS_E_PROVISIONING_NOT_ALLOWED*/; + if (FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | + FORMAT_MESSAGE_FROM_SYSTEM | + FORMAT_MESSAGE_IGNORE_INSERTS, + 0, static_cast<DWORD>(provisioning_not_allowed), + MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), + reinterpret_cast<LPWSTR>(&message), 0, 0) == 0) { + return; + } + fmt::detail::utf16_to_utf8 utf8_message(message); + LocalFree(message); + fmt::memory_buffer actual_message; + fmt::detail::format_windows_error(actual_message, provisioning_not_allowed, + "test"); + EXPECT_EQ(fmt::format("test: {}", utf8_message.str()), + fmt::to_string(actual_message)); +} + +TEST(UtilTest, WindowsError) { + fmt::system_error error(0, ""); + try { + throw fmt::windows_error(ERROR_FILE_EXISTS, "test {}", "error"); + } catch (const fmt::system_error& e) { + error = e; + } + fmt::memory_buffer message; + fmt::detail::format_windows_error(message, ERROR_FILE_EXISTS, "test error"); + EXPECT_EQ(to_string(message), error.what()); + EXPECT_EQ(ERROR_FILE_EXISTS, error.error_code()); +} + +TEST(UtilTest, ReportWindowsError) { + fmt::memory_buffer out; + fmt::detail::format_windows_error(out, ERROR_FILE_EXISTS, "test error"); + out.push_back('\n'); + EXPECT_WRITE(stderr, + fmt::report_windows_error(ERROR_FILE_EXISTS, "test error"), + fmt::to_string(out)); +} + +#endif // _WIN32 + +#if FMT_USE_FCNTL + +using fmt::file; + +// Checks if the file is open by reading one character from it. +static bool isopen(int fd) { + char buffer; + return FMT_POSIX(read(fd, &buffer, 1)) == 1; +} + +static bool isclosed(int fd) { + char buffer; + std::streamsize result = 0; + SUPPRESS_ASSERT(result = FMT_POSIX(read(fd, &buffer, 1))); + return result == -1 && errno == EBADF; +} + +// Opens a file for reading. +static file open_file() { + file read_end, write_end; + file::pipe(read_end, write_end); + write_end.write(FILE_CONTENT, std::strlen(FILE_CONTENT)); + write_end.close(); + return read_end; +} + +// Attempts to write a string to a file. +static void write(file& f, fmt::string_view s) { + size_t num_chars_left = s.size(); + const char* ptr = s.data(); + do { + size_t count = f.write(ptr, num_chars_left); + ptr += count; + // We can't write more than size_t bytes since num_chars_left + // has type size_t. + num_chars_left -= count; + } while (num_chars_left != 0); +} + +TEST(BufferedFileTest, DefaultCtor) { + buffered_file f; + EXPECT_TRUE(f.get() == nullptr); +} + +TEST(BufferedFileTest, MoveCtor) { + buffered_file bf = open_buffered_file(); + FILE* fp = bf.get(); + EXPECT_TRUE(fp != nullptr); + buffered_file bf2(std::move(bf)); + EXPECT_EQ(fp, bf2.get()); + EXPECT_TRUE(bf.get() == nullptr); +} + +TEST(BufferedFileTest, MoveAssignment) { + buffered_file bf = open_buffered_file(); + FILE* fp = bf.get(); + EXPECT_TRUE(fp != nullptr); + buffered_file bf2; + bf2 = std::move(bf); + EXPECT_EQ(fp, bf2.get()); + EXPECT_TRUE(bf.get() == nullptr); +} + +TEST(BufferedFileTest, MoveAssignmentClosesFile) { + buffered_file bf = open_buffered_file(); + buffered_file bf2 = open_buffered_file(); + int old_fd = bf2.fileno(); + bf2 = std::move(bf); + EXPECT_TRUE(isclosed(old_fd)); +} + +TEST(BufferedFileTest, MoveFromTemporaryInCtor) { + FILE* fp = nullptr; + buffered_file f(open_buffered_file(&fp)); + EXPECT_EQ(fp, f.get()); +} + +TEST(BufferedFileTest, MoveFromTemporaryInAssignment) { + FILE* fp = nullptr; + buffered_file f; + f = open_buffered_file(&fp); + EXPECT_EQ(fp, f.get()); +} + +TEST(BufferedFileTest, MoveFromTemporaryInAssignmentClosesFile) { + buffered_file f = open_buffered_file(); + int old_fd = f.fileno(); + f = open_buffered_file(); + EXPECT_TRUE(isclosed(old_fd)); +} + +TEST(BufferedFileTest, CloseFileInDtor) { + int fd = 0; + { + buffered_file f = open_buffered_file(); + fd = f.fileno(); + } + EXPECT_TRUE(isclosed(fd)); +} + +TEST(BufferedFileTest, CloseErrorInDtor) { + std::unique_ptr<buffered_file> f(new buffered_file(open_buffered_file())); + EXPECT_WRITE( + stderr, + { + // The close function must be called inside EXPECT_WRITE, + // otherwise the system may recycle closed file descriptor when + // redirecting the output in EXPECT_STDERR and the second close + // will break output redirection. + FMT_POSIX(close(f->fileno())); + SUPPRESS_ASSERT(f.reset(nullptr)); + }, + format_system_error(EBADF, "cannot close file") + "\n"); +} + +TEST(BufferedFileTest, Close) { + buffered_file f = open_buffered_file(); + int fd = f.fileno(); + f.close(); + EXPECT_TRUE(f.get() == nullptr); + EXPECT_TRUE(isclosed(fd)); +} + +TEST(BufferedFileTest, CloseError) { + buffered_file f = open_buffered_file(); + FMT_POSIX(close(f.fileno())); + EXPECT_SYSTEM_ERROR_NOASSERT(f.close(), EBADF, "cannot close file"); + EXPECT_TRUE(f.get() == nullptr); +} + +TEST(BufferedFileTest, Fileno) { + buffered_file f; +# ifndef __COVERITY__ + // fileno on a null FILE pointer either crashes or returns an error. + // Disable Coverity because this is intentional. + EXPECT_DEATH_IF_SUPPORTED( + { + try { + f.fileno(); + } catch (const fmt::system_error&) { + std::exit(1); + } + }, + ""); +# endif + f = open_buffered_file(); + EXPECT_TRUE(f.fileno() != -1); + file copy = file::dup(f.fileno()); + EXPECT_READ(copy, FILE_CONTENT); +} + +TEST(OStreamTest, Move) { + fmt::ostream out = fmt::output_file("test-file"); + fmt::ostream moved(std::move(out)); + moved.print("hello"); +} + +TEST(OStreamTest, Print) { + fmt::ostream out = fmt::output_file("test-file"); + out.print("The answer is {}.\n", 42); + out.close(); + file in("test-file", file::RDONLY); + EXPECT_READ(in, "The answer is 42.\n"); +} + +TEST(OStreamTest, BufferBoundary) { + auto str = std::string(4096, 'x'); + fmt::ostream out = fmt::output_file("test-file"); + out.print("{}", str); + out.print("{}", str); + out.close(); + file in("test-file", file::RDONLY); + EXPECT_READ(in, str + str); +} + +TEST(OStreamTest, BufferSize) { + fmt::ostream out = fmt::output_file("test-file", fmt::buffer_size=1); + out.print("{}", "foo"); + out.close(); + file in("test-file", file::RDONLY); + EXPECT_READ(in, "foo"); +} + +TEST(FileTest, DefaultCtor) { + file f; + EXPECT_EQ(-1, f.descriptor()); +} + +TEST(FileTest, OpenBufferedFileInCtor) { + FILE* fp = safe_fopen("test-file", "w"); + std::fputs(FILE_CONTENT, fp); + std::fclose(fp); + file f("test-file", file::RDONLY); + ASSERT_TRUE(isopen(f.descriptor())); +} + +TEST(FileTest, OpenBufferedFileError) { + EXPECT_SYSTEM_ERROR(file("nonexistent", file::RDONLY), ENOENT, + "cannot open file nonexistent"); +} + +TEST(FileTest, MoveCtor) { + file f = open_file(); + int fd = f.descriptor(); + EXPECT_NE(-1, fd); + file f2(std::move(f)); + EXPECT_EQ(fd, f2.descriptor()); + EXPECT_EQ(-1, f.descriptor()); +} + +TEST(FileTest, MoveAssignment) { + file f = open_file(); + int fd = f.descriptor(); + EXPECT_NE(-1, fd); + file f2; + f2 = std::move(f); + EXPECT_EQ(fd, f2.descriptor()); + EXPECT_EQ(-1, f.descriptor()); +} + +TEST(FileTest, MoveAssignmentClosesFile) { + file f = open_file(); + file f2 = open_file(); + int old_fd = f2.descriptor(); + f2 = std::move(f); + EXPECT_TRUE(isclosed(old_fd)); +} + +static file OpenBufferedFile(int& fd) { + file f = open_file(); + fd = f.descriptor(); + return f; +} + +TEST(FileTest, MoveFromTemporaryInCtor) { + int fd = 0xdead; + file f(OpenBufferedFile(fd)); + EXPECT_EQ(fd, f.descriptor()); +} + +TEST(FileTest, MoveFromTemporaryInAssignment) { + int fd = 0xdead; + file f; + f = OpenBufferedFile(fd); + EXPECT_EQ(fd, f.descriptor()); +} + +TEST(FileTest, MoveFromTemporaryInAssignmentClosesFile) { + int fd = 0xdead; + file f = open_file(); + int old_fd = f.descriptor(); + f = OpenBufferedFile(fd); + EXPECT_TRUE(isclosed(old_fd)); +} + +TEST(FileTest, CloseFileInDtor) { + int fd = 0; + { + file f = open_file(); + fd = f.descriptor(); + } + EXPECT_TRUE(isclosed(fd)); +} + +TEST(FileTest, CloseErrorInDtor) { + std::unique_ptr<file> f(new file(open_file())); + EXPECT_WRITE( + stderr, + { + // The close function must be called inside EXPECT_WRITE, + // otherwise the system may recycle closed file descriptor when + // redirecting the output in EXPECT_STDERR and the second close + // will break output redirection. + FMT_POSIX(close(f->descriptor())); + SUPPRESS_ASSERT(f.reset(nullptr)); + }, + format_system_error(EBADF, "cannot close file") + "\n"); +} + +TEST(FileTest, Close) { + file f = open_file(); + int fd = f.descriptor(); + f.close(); + EXPECT_EQ(-1, f.descriptor()); + EXPECT_TRUE(isclosed(fd)); +} + +TEST(FileTest, CloseError) { + file f = open_file(); + FMT_POSIX(close(f.descriptor())); + EXPECT_SYSTEM_ERROR_NOASSERT(f.close(), EBADF, "cannot close file"); + EXPECT_EQ(-1, f.descriptor()); +} + +TEST(FileTest, Read) { + file f = open_file(); + EXPECT_READ(f, FILE_CONTENT); +} + +TEST(FileTest, ReadError) { + file f("test-file", file::WRONLY); + char buf; + // We intentionally read from a file opened in the write-only mode to + // cause error. + EXPECT_SYSTEM_ERROR(f.read(&buf, 1), EBADF, "cannot read from file"); +} + +TEST(FileTest, Write) { + file read_end, write_end; + file::pipe(read_end, write_end); + write(write_end, "test"); + write_end.close(); + EXPECT_READ(read_end, "test"); +} + +TEST(FileTest, WriteError) { + file f("test-file", file::RDONLY); + // We intentionally write to a file opened in the read-only mode to + // cause error. + EXPECT_SYSTEM_ERROR(f.write(" ", 1), EBADF, "cannot write to file"); +} + +TEST(FileTest, Dup) { + file f = open_file(); + file copy = file::dup(f.descriptor()); + EXPECT_NE(f.descriptor(), copy.descriptor()); + EXPECT_EQ(FILE_CONTENT, read(copy, std::strlen(FILE_CONTENT))); +} + +# ifndef __COVERITY__ +TEST(FileTest, DupError) { + int value = -1; + EXPECT_SYSTEM_ERROR_NOASSERT(file::dup(value), EBADF, + "cannot duplicate file descriptor -1"); +} +# endif + +TEST(FileTest, Dup2) { + file f = open_file(); + file copy = open_file(); + f.dup2(copy.descriptor()); + EXPECT_NE(f.descriptor(), copy.descriptor()); + EXPECT_READ(copy, FILE_CONTENT); +} + +TEST(FileTest, Dup2Error) { + file f = open_file(); + EXPECT_SYSTEM_ERROR_NOASSERT( + f.dup2(-1), EBADF, + fmt::format("cannot duplicate file descriptor {} to -1", f.descriptor())); +} + +TEST(FileTest, Dup2NoExcept) { + file f = open_file(); + file copy = open_file(); + error_code ec; + f.dup2(copy.descriptor(), ec); + EXPECT_EQ(ec.get(), 0); + EXPECT_NE(f.descriptor(), copy.descriptor()); + EXPECT_READ(copy, FILE_CONTENT); +} + +TEST(FileTest, Dup2NoExceptError) { + file f = open_file(); + error_code ec; + SUPPRESS_ASSERT(f.dup2(-1, ec)); + EXPECT_EQ(EBADF, ec.get()); +} + +TEST(FileTest, Pipe) { + file read_end, write_end; + file::pipe(read_end, write_end); + EXPECT_NE(-1, read_end.descriptor()); + EXPECT_NE(-1, write_end.descriptor()); + write(write_end, "test"); + EXPECT_READ(read_end, "test"); +} + +TEST(FileTest, Fdopen) { + file read_end, write_end; + file::pipe(read_end, write_end); + int read_fd = read_end.descriptor(); + EXPECT_EQ(read_fd, FMT_POSIX(fileno(read_end.fdopen("r").get()))); +} + +# ifdef FMT_LOCALE +TEST(LocaleTest, Strtod) { + fmt::locale loc; + const char *start = "4.2", *ptr = start; + EXPECT_EQ(4.2, loc.strtod(ptr)); + EXPECT_EQ(start + 3, ptr); +} +# endif +#endif // FMT_USE_FCNTL diff --git a/contrib/libs/fmt/test/os-test/ya.make b/contrib/libs/fmt/test/os-test/ya.make new file mode 100644 index 0000000000..34228bb26b --- /dev/null +++ b/contrib/libs/fmt/test/os-test/ya.make @@ -0,0 +1,37 @@ +# Generated by devtools/yamaker. + +GTEST() + +WITHOUT_LICENSE_TEXTS() + +OWNER( + orivej + g:cpp-contrib +) + +LICENSE(MIT) + +PEERDIR( + contrib/libs/fmt + contrib/libs/fmt/test +) + +NO_COMPILER_WARNINGS() + +NO_UTIL() + +CFLAGS( + -DFMT_LOCALE + -DFMT_SHARED + -DGTEST_HAS_STD_WSTRING=1 + -DGTEST_LANG_CXX11=0 + -D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING=1 +) + +SRCDIR(contrib/libs/fmt/test) + +SRCS( + os-test.cc +) + +END() diff --git a/contrib/libs/fmt/test/ostream-test.cc b/contrib/libs/fmt/test/ostream-test.cc new file mode 100644 index 0000000000..4cef5a78c4 --- /dev/null +++ b/contrib/libs/fmt/test/ostream-test.cc @@ -0,0 +1,330 @@ +// Formatting library for C++ - std::ostream support tests +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#include "fmt/format.h" + +struct test {}; + +// Test that there is no issues with specializations when fmt/ostream.h is +// included after fmt/format.h. +namespace fmt { +template <> struct formatter<test> : formatter<int> { + template <typename FormatContext> + typename FormatContext::iterator format(const test&, FormatContext& ctx) { + return formatter<int>::format(42, ctx); + } +}; +} // namespace fmt + +#include <sstream> + +#include "fmt/ostream.h" +#include "fmt/ranges.h" +#include <gmock/gmock.h> +#include "gtest-extra.h" +#include "util.h" + +using fmt::format; +using fmt::format_error; + +static std::ostream& operator<<(std::ostream& os, const Date& d) { + os << d.year() << '-' << d.month() << '-' << d.day(); + return os; +} + +static std::wostream& operator<<(std::wostream& os, const Date& d) { + os << d.year() << L'-' << d.month() << L'-' << d.day(); + return os; +} + +// Make sure that overloaded comma operators do no harm to is_streamable. +struct type_with_comma_op {}; +template <typename T> void operator,(type_with_comma_op, const T&); +template <typename T> type_with_comma_op operator<<(T&, const Date&); + +enum streamable_enum {}; +static std::ostream& operator<<(std::ostream& os, streamable_enum) { + return os << "streamable_enum"; +} + +static std::wostream& operator<<(std::wostream& os, streamable_enum) { + return os << L"streamable_enum"; +} + +enum unstreamable_enum {}; + +TEST(OStreamTest, Enum) { + EXPECT_EQ("streamable_enum", fmt::format("{}", streamable_enum())); + EXPECT_EQ("0", fmt::format("{}", unstreamable_enum())); + EXPECT_EQ(L"streamable_enum", fmt::format(L"{}", streamable_enum())); + EXPECT_EQ(L"0", fmt::format(L"{}", unstreamable_enum())); +} + +struct test_arg_formatter + : fmt::detail::arg_formatter<fmt::format_context::iterator, char> { + fmt::format_parse_context parse_ctx; + test_arg_formatter(fmt::format_context& ctx, fmt::format_specs& s) + : fmt::detail::arg_formatter<fmt::format_context::iterator, char>( + ctx, &parse_ctx, &s), + parse_ctx("") {} +}; + +TEST(OStreamTest, CustomArg) { + fmt::memory_buffer buffer; + fmt::format_context ctx(fmt::detail::buffer_appender<char>{buffer}, + fmt::format_args()); + fmt::format_specs spec; + test_arg_formatter af(ctx, spec); + fmt::visit_format_arg( + af, fmt::detail::make_arg<fmt::format_context>(streamable_enum())); + EXPECT_EQ("streamable_enum", std::string(buffer.data(), buffer.size())); +} + +TEST(OStreamTest, Format) { + EXPECT_EQ("a string", format("{0}", TestString("a string"))); + std::string s = format("The date is {0}", Date(2012, 12, 9)); + EXPECT_EQ("The date is 2012-12-9", s); + Date date(2012, 12, 9); + EXPECT_EQ(L"The date is 2012-12-9", + format(L"The date is {0}", Date(2012, 12, 9))); +} + +TEST(OStreamTest, FormatSpecs) { + EXPECT_EQ("def ", format("{0:<5}", TestString("def"))); + EXPECT_EQ(" def", format("{0:>5}", TestString("def"))); +#if FMT_DEPRECATED_NUMERIC_ALIGN + EXPECT_THROW_MSG(format("{0:=5}", TestString("def")), format_error, + "format specifier requires numeric argument"); +#endif + EXPECT_EQ(" def ", format("{0:^5}", TestString("def"))); + EXPECT_EQ("def**", format("{0:*<5}", TestString("def"))); + EXPECT_THROW_MSG(format("{0:+}", TestString()), format_error, + "format specifier requires numeric argument"); + EXPECT_THROW_MSG(format("{0:-}", TestString()), format_error, + "format specifier requires numeric argument"); + EXPECT_THROW_MSG(format("{0: }", TestString()), format_error, + "format specifier requires numeric argument"); + EXPECT_THROW_MSG(format("{0:#}", TestString()), format_error, + "format specifier requires numeric argument"); + EXPECT_THROW_MSG(format("{0:05}", TestString()), format_error, + "format specifier requires numeric argument"); + EXPECT_EQ("test ", format("{0:13}", TestString("test"))); + EXPECT_EQ("test ", format("{0:{1}}", TestString("test"), 13)); + EXPECT_EQ("te", format("{0:.2}", TestString("test"))); + EXPECT_EQ("te", format("{0:.{1}}", TestString("test"), 2)); +} + +struct EmptyTest {}; +static std::ostream& operator<<(std::ostream& os, EmptyTest) { + return os << ""; +} + +TEST(OStreamTest, EmptyCustomOutput) { + EXPECT_EQ("", fmt::format("{}", EmptyTest())); +} + +TEST(OStreamTest, Print) { + std::ostringstream os; + fmt::print(os, "Don't {}!", "panic"); + EXPECT_EQ("Don't panic!", os.str()); + std::wostringstream wos; + fmt::print(wos, L"Don't {}!", L"panic"); + EXPECT_EQ(L"Don't panic!", wos.str()); +} + +TEST(OStreamTest, WriteToOStream) { + std::ostringstream os; + fmt::memory_buffer buffer; + const char* foo = "foo"; + buffer.append(foo, foo + std::strlen(foo)); + fmt::detail::write_buffer(os, buffer); + EXPECT_EQ("foo", os.str()); +} + +TEST(OStreamTest, WriteToOStreamMaxSize) { + size_t max_size = fmt::detail::max_value<size_t>(); + std::streamsize max_streamsize = fmt::detail::max_value<std::streamsize>(); + if (max_size <= fmt::detail::to_unsigned(max_streamsize)) return; + + struct test_buffer final : fmt::detail::buffer<char> { + explicit test_buffer(size_t size) + : fmt::detail::buffer<char>(nullptr, size, size) {} + void grow(size_t) {} + } buffer(max_size); + + struct mock_streambuf : std::streambuf { + MOCK_METHOD2(xsputn, std::streamsize(const void* s, std::streamsize n)); + std::streamsize xsputn(const char* s, std::streamsize n) { + const void* v = s; + return xsputn(v, n); + } + } streambuf; + + struct test_ostream : std::ostream { + explicit test_ostream(mock_streambuf& buffer) : std::ostream(&buffer) {} + } os(streambuf); + + testing::InSequence sequence; + const char* data = nullptr; + typedef std::make_unsigned<std::streamsize>::type ustreamsize; + ustreamsize size = max_size; + do { + auto n = std::min(size, fmt::detail::to_unsigned(max_streamsize)); + EXPECT_CALL(streambuf, xsputn(data, static_cast<std::streamsize>(n))) + .WillOnce(testing::Return(max_streamsize)); + data += n; + size -= n; + } while (size != 0); + fmt::detail::write_buffer(os, buffer); +} + +TEST(OStreamTest, Join) { + int v[3] = {1, 2, 3}; + EXPECT_EQ("1, 2, 3", fmt::format("{}", fmt::join(v, v + 3, ", "))); +} + +#if FMT_USE_CONSTEXPR +TEST(OStreamTest, ConstexprString) { + EXPECT_EQ("42", format(FMT_STRING("{}"), std::string("42"))); + EXPECT_EQ("a string", format(FMT_STRING("{0}"), TestString("a string"))); +} +#endif + +namespace fmt_test { +struct ABC {}; + +template <typename Output> Output& operator<<(Output& out, ABC) { + out << "ABC"; + return out; +} +} // namespace fmt_test + +template <typename T> struct TestTemplate {}; + +template <typename T> +std::ostream& operator<<(std::ostream& os, TestTemplate<T>) { + return os << 1; +} + +namespace fmt { +template <typename T> struct formatter<TestTemplate<T>> : formatter<int> { + template <typename FormatContext> + typename FormatContext::iterator format(TestTemplate<T>, FormatContext& ctx) { + return formatter<int>::format(2, ctx); + } +}; +} // namespace fmt + +#if !FMT_GCC_VERSION || FMT_GCC_VERSION >= 407 +TEST(OStreamTest, Template) { + EXPECT_EQ("2", fmt::format("{}", TestTemplate<int>())); +} + +TEST(FormatTest, FormatToN) { + char buffer[4]; + buffer[3] = 'x'; + auto result = fmt::format_to_n(buffer, 3, "{}", fmt_test::ABC()); + EXPECT_EQ(3u, result.size); + EXPECT_EQ(buffer + 3, result.out); + EXPECT_EQ("ABCx", fmt::string_view(buffer, 4)); + result = fmt::format_to_n(buffer, 3, "x{}y", fmt_test::ABC()); + EXPECT_EQ(5u, result.size); + EXPECT_EQ(buffer + 3, result.out); + EXPECT_EQ("xABx", fmt::string_view(buffer, 4)); +} +#endif + +#if FMT_USE_USER_DEFINED_LITERALS +TEST(FormatTest, UDL) { + using namespace fmt::literals; + EXPECT_EQ("{}"_format("test"), "test"); +} +#endif + +template <typename T> struct convertible { + T value; + explicit convertible(const T& val) : value(val) {} + operator T() const { return value; } +}; + +TEST(OStreamTest, DisableBuiltinOStreamOperators) { + EXPECT_EQ("42", fmt::format("{:d}", convertible<unsigned short>(42))); + EXPECT_EQ(L"42", fmt::format(L"{:d}", convertible<unsigned short>(42))); + EXPECT_EQ("foo", fmt::format("{}", convertible<const char*>("foo"))); +} + +struct explicitly_convertible_to_string_like { + template <typename String, + typename = typename std::enable_if<std::is_constructible< + String, const char*, size_t>::value>::type> + explicit operator String() const { + return String("foo", 3u); + } +}; + +std::ostream& operator<<(std::ostream& os, + explicitly_convertible_to_string_like) { + return os << "bar"; +} + +TEST(OStreamTest, FormatExplicitlyConvertibleToStringLike) { + EXPECT_EQ("bar", fmt::format("{}", explicitly_convertible_to_string_like())); +} + +#ifdef FMT_USE_STRING_VIEW +struct explicitly_convertible_to_std_string_view { + explicit operator fmt::detail::std_string_view<char>() const { + return {"foo", 3u}; + } +}; + +std::ostream& operator<<(std::ostream& os, + explicitly_convertible_to_std_string_view) { + return os << "bar"; +} + +TEST(OStreamTest, FormatExplicitlyConvertibleToStdStringView) { + EXPECT_EQ("bar", fmt::format("{}", explicitly_convertible_to_string_like())); +} +#endif // FMT_USE_STRING_VIEW + +struct streamable_and_convertible_to_bool { + operator bool() const { return true; } +}; + +std::ostream& operator<<(std::ostream& os, streamable_and_convertible_to_bool) { + return os << "foo"; +} + +TEST(OStreamTest, FormatConvertibleToBool) { + EXPECT_EQ("foo", fmt::format("{}", streamable_and_convertible_to_bool())); +} + +struct copyfmt_test {}; + +std::ostream& operator<<(std::ostream& os, copyfmt_test) { + std::ios ios(nullptr); + ios.copyfmt(os); + return os << "foo"; +} + +TEST(OStreamTest, CopyFmt) { + EXPECT_EQ("foo", fmt::format("{}", copyfmt_test())); +} + +TEST(OStreamTest, CompileTimeString) { + EXPECT_EQ("42", fmt::format(FMT_STRING("{}"), 42)); +} + +TEST(OStreamTest, ToString) { + EXPECT_EQ("ABC", fmt::to_string(fmt_test::ABC())); +} + +TEST(OStreamTest, Range) { + auto strs = std::vector<TestString>{TestString("foo"), TestString("bar")}; + EXPECT_EQ("{foo, bar}", format("{}", strs)); +}
\ No newline at end of file diff --git a/contrib/libs/fmt/test/ostream-test/ya.make b/contrib/libs/fmt/test/ostream-test/ya.make new file mode 100644 index 0000000000..10921b40d1 --- /dev/null +++ b/contrib/libs/fmt/test/ostream-test/ya.make @@ -0,0 +1,37 @@ +# Generated by devtools/yamaker. + +GTEST() + +WITHOUT_LICENSE_TEXTS() + +OWNER( + orivej + g:cpp-contrib +) + +LICENSE(MIT) + +PEERDIR( + contrib/libs/fmt + contrib/libs/fmt/test +) + +NO_COMPILER_WARNINGS() + +NO_UTIL() + +CFLAGS( + -DFMT_LOCALE + -DFMT_SHARED + -DGTEST_HAS_STD_WSTRING=1 + -DGTEST_LANG_CXX11=0 + -D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING=1 +) + +SRCDIR(contrib/libs/fmt/test) + +SRCS( + ostream-test.cc +) + +END() diff --git a/contrib/libs/fmt/test/posix-mock-test.cc b/contrib/libs/fmt/test/posix-mock-test.cc new file mode 100644 index 0000000000..0ea1b9c6d5 --- /dev/null +++ b/contrib/libs/fmt/test/posix-mock-test.cc @@ -0,0 +1,558 @@ +// Tests of the C++ interface to POSIX functions that require mocks +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +// Disable bogus MSVC warnings. +#ifndef _CRT_SECURE_NO_WARNINGS +# define _CRT_SECURE_NO_WARNINGS +#endif + +#include "posix-mock.h" + +#include <errno.h> +#include <fcntl.h> + +#include <climits> +#include <memory> + +#include "../src/os.cc" + +#ifdef _WIN32 +# include <io.h> +# undef max +# undef ERROR +#endif + +#include <gmock/gmock.h> +#include "gtest-extra.h" +#include "util.h" + +using fmt::buffered_file; +using fmt::error_code; + +using testing::_; +using testing::Return; +using testing::StrEq; + +namespace { +int open_count; +int close_count; +int dup_count; +int dup2_count; +int fdopen_count; +int read_count; +int write_count; +int pipe_count; +int fopen_count; +int fclose_count; +int fileno_count; +size_t read_nbyte; +size_t write_nbyte; +bool sysconf_error; + +enum { NONE, MAX_SIZE, ERROR } fstat_sim; +} // namespace + +#define EMULATE_EINTR(func, error_result) \ + if (func##_count != 0) { \ + if (func##_count++ != 3) { \ + errno = EINTR; \ + return error_result; \ + } \ + } + +#ifndef _MSC_VER +int test::open(const char* path, int oflag, int mode) { + EMULATE_EINTR(open, -1); + return ::open(path, oflag, mode); +} +#else +errno_t test::sopen_s(int* pfh, const char* filename, int oflag, int shflag, + int pmode) { + EMULATE_EINTR(open, EINTR); + return _sopen_s(pfh, filename, oflag, shflag, pmode); +} +#endif + +#ifndef _WIN32 + +long test::sysconf(int name) { + long result = ::sysconf(name); + if (!sysconf_error) return result; + // Simulate an error. + errno = EINVAL; + return -1; +} + +static off_t max_file_size() { return std::numeric_limits<off_t>::max(); } + +int test::fstat(int fd, struct stat* buf) { + int result = ::fstat(fd, buf); + if (fstat_sim == MAX_SIZE) buf->st_size = max_file_size(); + return result; +} + +#else + +static LONGLONG max_file_size() { return std::numeric_limits<LONGLONG>::max(); } + +DWORD test::GetFileSize(HANDLE hFile, LPDWORD lpFileSizeHigh) { + if (fstat_sim == ERROR) { + SetLastError(ERROR_ACCESS_DENIED); + return INVALID_FILE_SIZE; + } + if (fstat_sim == MAX_SIZE) { + DWORD max = std::numeric_limits<DWORD>::max(); + *lpFileSizeHigh = max >> 1; + return max; + } + return ::GetFileSize(hFile, lpFileSizeHigh); +} + +#endif + +int test::close(int fildes) { + // Close the file first because close shouldn't be retried. + int result = ::FMT_POSIX(close(fildes)); + EMULATE_EINTR(close, -1); + return result; +} + +int test::dup(int fildes) { + EMULATE_EINTR(dup, -1); + return ::FMT_POSIX(dup(fildes)); +} + +int test::dup2(int fildes, int fildes2) { + EMULATE_EINTR(dup2, -1); + return ::FMT_POSIX(dup2(fildes, fildes2)); +} + +FILE* test::fdopen(int fildes, const char* mode) { + EMULATE_EINTR(fdopen, nullptr); + return ::FMT_POSIX(fdopen(fildes, mode)); +} + +test::ssize_t test::read(int fildes, void* buf, test::size_t nbyte) { + read_nbyte = nbyte; + EMULATE_EINTR(read, -1); + return ::FMT_POSIX(read(fildes, buf, nbyte)); +} + +test::ssize_t test::write(int fildes, const void* buf, test::size_t nbyte) { + write_nbyte = nbyte; + EMULATE_EINTR(write, -1); + return ::FMT_POSIX(write(fildes, buf, nbyte)); +} + +#ifndef _WIN32 +int test::pipe(int fildes[2]) { + EMULATE_EINTR(pipe, -1); + return ::pipe(fildes); +} +#else +int test::pipe(int* pfds, unsigned psize, int textmode) { + EMULATE_EINTR(pipe, -1); + return _pipe(pfds, psize, textmode); +} +#endif + +FILE* test::fopen(const char* filename, const char* mode) { + EMULATE_EINTR(fopen, nullptr); + return ::fopen(filename, mode); +} + +int test::fclose(FILE* stream) { + EMULATE_EINTR(fclose, EOF); + return ::fclose(stream); +} + +int(test::fileno)(FILE* stream) { + EMULATE_EINTR(fileno, -1); +#ifdef fileno + return FMT_POSIX(fileno(stream)); +#else + return ::FMT_POSIX(fileno(stream)); +#endif +} + +#ifndef _WIN32 +# define EXPECT_RETRY(statement, func, message) \ + func##_count = 1; \ + statement; \ + EXPECT_EQ(4, func##_count); \ + func##_count = 0; +# define EXPECT_EQ_POSIX(expected, actual) EXPECT_EQ(expected, actual) +#else +# define EXPECT_RETRY(statement, func, message) \ + func##_count = 1; \ + EXPECT_SYSTEM_ERROR(statement, EINTR, message); \ + func##_count = 0; +# define EXPECT_EQ_POSIX(expected, actual) +#endif + +static void write_file(fmt::cstring_view filename, fmt::string_view content) { + fmt::buffered_file f(filename, "w"); + f.print("{}", content); +} + +#if FMT_USE_FCNTL +using fmt::file; + +TEST(UtilTest, GetPageSize) { +# ifdef _WIN32 + SYSTEM_INFO si = {}; + GetSystemInfo(&si); + EXPECT_EQ(si.dwPageSize, fmt::getpagesize()); +# else + EXPECT_EQ(sysconf(_SC_PAGESIZE), fmt::getpagesize()); + sysconf_error = true; + EXPECT_SYSTEM_ERROR(fmt::getpagesize(), EINVAL, + "cannot get memory page size"); + sysconf_error = false; +# endif +} + +TEST(FileTest, OpenRetry) { + write_file("temp", "there must be something here"); + std::unique_ptr<file> f{nullptr}; + EXPECT_RETRY(f.reset(new file("temp", file::RDONLY)), open, + "cannot open file temp"); +# ifndef _WIN32 + char c = 0; + f->read(&c, 1); +# endif +} + +TEST(FileTest, CloseNoRetryInDtor) { + file read_end, write_end; + file::pipe(read_end, write_end); + std::unique_ptr<file> f(new file(std::move(read_end))); + int saved_close_count = 0; + EXPECT_WRITE( + stderr, + { + close_count = 1; + f.reset(nullptr); + saved_close_count = close_count; + close_count = 0; + }, + format_system_error(EINTR, "cannot close file") + "\n"); + EXPECT_EQ(2, saved_close_count); +} + +TEST(FileTest, CloseNoRetry) { + file read_end, write_end; + file::pipe(read_end, write_end); + close_count = 1; + EXPECT_SYSTEM_ERROR(read_end.close(), EINTR, "cannot close file"); + EXPECT_EQ(2, close_count); + close_count = 0; +} + +TEST(FileTest, Size) { + std::string content = "top secret, destroy before reading"; + write_file("temp", content); + file f("temp", file::RDONLY); + EXPECT_GE(f.size(), 0); + EXPECT_EQ(content.size(), static_cast<unsigned long long>(f.size())); +# ifdef _WIN32 + fmt::memory_buffer message; + fmt::detail::format_windows_error(message, ERROR_ACCESS_DENIED, + "cannot get file size"); + fstat_sim = ERROR; + EXPECT_THROW_MSG(f.size(), fmt::windows_error, fmt::to_string(message)); + fstat_sim = NONE; +# else + f.close(); + EXPECT_SYSTEM_ERROR(f.size(), EBADF, "cannot get file attributes"); +# endif +} + +TEST(FileTest, MaxSize) { + write_file("temp", ""); + file f("temp", file::RDONLY); + fstat_sim = MAX_SIZE; + EXPECT_GE(f.size(), 0); + EXPECT_EQ(max_file_size(), f.size()); + fstat_sim = NONE; +} + +TEST(FileTest, ReadRetry) { + file read_end, write_end; + file::pipe(read_end, write_end); + enum { SIZE = 4 }; + write_end.write("test", SIZE); + write_end.close(); + char buffer[SIZE]; + size_t count = 0; + EXPECT_RETRY(count = read_end.read(buffer, SIZE), read, + "cannot read from file"); + EXPECT_EQ_POSIX(static_cast<std::streamsize>(SIZE), count); +} + +TEST(FileTest, WriteRetry) { + file read_end, write_end; + file::pipe(read_end, write_end); + enum { SIZE = 4 }; + size_t count = 0; + EXPECT_RETRY(count = write_end.write("test", SIZE), write, + "cannot write to file"); + write_end.close(); +# ifndef _WIN32 + EXPECT_EQ(static_cast<std::streamsize>(SIZE), count); + char buffer[SIZE + 1]; + read_end.read(buffer, SIZE); + buffer[SIZE] = '\0'; + EXPECT_STREQ("test", buffer); +# endif +} + +# ifdef _WIN32 +TEST(FileTest, ConvertReadCount) { + file read_end, write_end; + file::pipe(read_end, write_end); + char c; + size_t size = UINT_MAX; + if (sizeof(unsigned) != sizeof(size_t)) ++size; + read_count = 1; + read_nbyte = 0; + EXPECT_THROW(read_end.read(&c, size), fmt::system_error); + read_count = 0; + EXPECT_EQ(UINT_MAX, read_nbyte); +} + +TEST(FileTest, ConvertWriteCount) { + file read_end, write_end; + file::pipe(read_end, write_end); + char c; + size_t size = UINT_MAX; + if (sizeof(unsigned) != sizeof(size_t)) ++size; + write_count = 1; + write_nbyte = 0; + EXPECT_THROW(write_end.write(&c, size), fmt::system_error); + write_count = 0; + EXPECT_EQ(UINT_MAX, write_nbyte); +} +# endif + +TEST(FileTest, DupNoRetry) { + int stdout_fd = FMT_POSIX(fileno(stdout)); + dup_count = 1; + EXPECT_SYSTEM_ERROR( + file::dup(stdout_fd), EINTR, + fmt::format("cannot duplicate file descriptor {}", stdout_fd)); + dup_count = 0; +} + +TEST(FileTest, Dup2Retry) { + int stdout_fd = FMT_POSIX(fileno(stdout)); + file f1 = file::dup(stdout_fd), f2 = file::dup(stdout_fd); + EXPECT_RETRY(f1.dup2(f2.descriptor()), dup2, + fmt::format("cannot duplicate file descriptor {} to {}", + f1.descriptor(), f2.descriptor())); +} + +TEST(FileTest, Dup2NoExceptRetry) { + int stdout_fd = FMT_POSIX(fileno(stdout)); + file f1 = file::dup(stdout_fd), f2 = file::dup(stdout_fd); + error_code ec; + dup2_count = 1; + f1.dup2(f2.descriptor(), ec); +# ifndef _WIN32 + EXPECT_EQ(4, dup2_count); +# else + EXPECT_EQ(EINTR, ec.get()); +# endif + dup2_count = 0; +} + +TEST(FileTest, PipeNoRetry) { + file read_end, write_end; + pipe_count = 1; + EXPECT_SYSTEM_ERROR(file::pipe(read_end, write_end), EINTR, + "cannot create pipe"); + pipe_count = 0; +} + +TEST(FileTest, FdopenNoRetry) { + file read_end, write_end; + file::pipe(read_end, write_end); + fdopen_count = 1; + EXPECT_SYSTEM_ERROR(read_end.fdopen("r"), EINTR, + "cannot associate stream with file descriptor"); + fdopen_count = 0; +} + +TEST(BufferedFileTest, OpenRetry) { + write_file("temp", "there must be something here"); + std::unique_ptr<buffered_file> f{nullptr}; + EXPECT_RETRY(f.reset(new buffered_file("temp", "r")), fopen, + "cannot open file temp"); +# ifndef _WIN32 + char c = 0; + if (fread(&c, 1, 1, f->get()) < 1) + throw fmt::system_error(errno, "fread failed"); +# endif +} + +TEST(BufferedFileTest, CloseNoRetryInDtor) { + file read_end, write_end; + file::pipe(read_end, write_end); + std::unique_ptr<buffered_file> f(new buffered_file(read_end.fdopen("r"))); + int saved_fclose_count = 0; + EXPECT_WRITE( + stderr, + { + fclose_count = 1; + f.reset(nullptr); + saved_fclose_count = fclose_count; + fclose_count = 0; + }, + format_system_error(EINTR, "cannot close file") + "\n"); + EXPECT_EQ(2, saved_fclose_count); +} + +TEST(BufferedFileTest, CloseNoRetry) { + file read_end, write_end; + file::pipe(read_end, write_end); + buffered_file f = read_end.fdopen("r"); + fclose_count = 1; + EXPECT_SYSTEM_ERROR(f.close(), EINTR, "cannot close file"); + EXPECT_EQ(2, fclose_count); + fclose_count = 0; +} + +TEST(BufferedFileTest, FilenoNoRetry) { + file read_end, write_end; + file::pipe(read_end, write_end); + buffered_file f = read_end.fdopen("r"); + fileno_count = 1; + EXPECT_SYSTEM_ERROR((f.fileno)(), EINTR, "cannot get file descriptor"); + EXPECT_EQ(2, fileno_count); + fileno_count = 0; +} +#endif // FMT_USE_FCNTL + +struct test_mock { + static test_mock* instance; +} * test_mock::instance; + +TEST(ScopedMock, Scope) { + { + ScopedMock<test_mock> mock; + EXPECT_EQ(&mock, test_mock::instance); + test_mock& copy = mock; + static_cast<void>(copy); + } + EXPECT_EQ(nullptr, test_mock::instance); +} + +#if defined(FMT_LOCALE) && !defined(_LIBCPP_VERSION) + +typedef fmt::locale::type locale_type; + +struct locale_mock { + static locale_mock* instance; + MOCK_METHOD3(newlocale, locale_type(int category_mask, const char* locale, + locale_type base)); + MOCK_METHOD1(freelocale, void(locale_type locale)); + + MOCK_METHOD3(strtod_l, + double(const char* nptr, char** endptr, locale_type locale)); +} * locale_mock::instance; + +# ifdef _MSC_VER +# pragma warning(push) +# pragma warning(disable : 4273) +# ifdef __clang__ +# pragma clang diagnostic push +# pragma clang diagnostic ignored "-Winconsistent-dllimport" +# endif + +_locale_t _create_locale(int category, const char* locale) { + return locale_mock::instance->newlocale(category, locale, 0); +} + +void _free_locale(_locale_t locale) { + locale_mock::instance->freelocale(locale); +} + +double _strtod_l(const char* nptr, char** endptr, _locale_t locale) { + return locale_mock::instance->strtod_l(nptr, endptr, locale); +} +# ifdef __clang__ +# pragma clang diagnostic pop +# endif +# pragma warning(pop) +# endif + +# if defined(__THROW) && FMT_GCC_VERSION > 0 && FMT_GCC_VERSION <= 408 +# define FMT_LOCALE_THROW __THROW +# else +# define FMT_LOCALE_THROW +# endif + +# if defined(__APPLE__) || \ + (defined(__FreeBSD__) && __FreeBSD_version < 1200002) +typedef int FreeLocaleResult; +# else +typedef void FreeLocaleResult; +# endif + +FreeLocaleResult freelocale(locale_type locale) FMT_LOCALE_THROW { + locale_mock::instance->freelocale(locale); + return FreeLocaleResult(); +} + +double strtod_l(const char* nptr, char** endptr, + locale_type locale) FMT_LOCALE_THROW { + return locale_mock::instance->strtod_l(nptr, endptr, locale); +} + +# undef FMT_LOCALE_THROW + +# if !defined(_WIN32) || defined(_LIBCPP_VERSION) +locale_t test::newlocale(int category_mask, const char* locale, locale_t base) { + return locale_mock::instance->newlocale(category_mask, locale, base); +} + +TEST(LocaleTest, LocaleMock) { + ScopedMock<locale_mock> mock; + locale_type locale = reinterpret_cast<locale_type>(11); + EXPECT_CALL(mock, newlocale(222, StrEq("foo"), locale)); + FMT_SYSTEM(newlocale(222, "foo", locale)); +} +# endif + +TEST(LocaleTest, Locale) { +# ifndef LC_NUMERIC_MASK + enum { LC_NUMERIC_MASK = LC_NUMERIC }; +# endif + ScopedMock<locale_mock> mock; + locale_type impl = reinterpret_cast<locale_type>(42); + EXPECT_CALL(mock, newlocale(LC_NUMERIC_MASK, StrEq("C"), nullptr)) + .WillOnce(Return(impl)); + EXPECT_CALL(mock, freelocale(impl)); + fmt::locale loc; + EXPECT_EQ(impl, loc.get()); +} + +TEST(LocaleTest, Strtod) { + ScopedMock<locale_mock> mock; + EXPECT_CALL(mock, newlocale(_, _, _)) + .WillOnce(Return(reinterpret_cast<locale_type>(42))); + EXPECT_CALL(mock, freelocale(_)); + fmt::locale loc; + const char* str = "4.2"; + char end = 'x'; + EXPECT_CALL(mock, strtod_l(str, _, loc.get())) + .WillOnce(testing::DoAll(testing::SetArgPointee<1>(&end), Return(777))); + EXPECT_EQ(777, loc.strtod(str)); + EXPECT_EQ(&end, str); +} + +#endif // FMT_LOCALE diff --git a/contrib/libs/fmt/test/posix-mock-test/ya.make b/contrib/libs/fmt/test/posix-mock-test/ya.make new file mode 100644 index 0000000000..d1a55e5200 --- /dev/null +++ b/contrib/libs/fmt/test/posix-mock-test/ya.make @@ -0,0 +1,38 @@ +# Generated by devtools/yamaker. + +GTEST() + +WITHOUT_LICENSE_TEXTS() + +OWNER( + orivej + g:cpp-contrib +) + +LICENSE(MIT) + +ADDINCL( + contrib/libs/fmt/include +) + +NO_COMPILER_WARNINGS() + +NO_UTIL() + +CFLAGS( + -DFMT_LOCALE + -DGTEST_HAS_STD_WSTRING=1 + -DGTEST_LANG_CXX11=0 + -D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING=1 +) + +SRCDIR(contrib/libs/fmt) + +SRCS( + src/format.cc + test/gtest-extra.cc + test/posix-mock-test.cc + test/util.cc +) + +END() diff --git a/contrib/libs/fmt/test/posix-mock.h b/contrib/libs/fmt/test/posix-mock.h new file mode 100644 index 0000000000..1f204263c6 --- /dev/null +++ b/contrib/libs/fmt/test/posix-mock.h @@ -0,0 +1,78 @@ +// Formatting library for C++ - mocks of POSIX functions +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#ifndef FMT_POSIX_TEST_H +#define FMT_POSIX_TEST_H + +#include <errno.h> +#include <locale.h> +#include <stdio.h> +#ifdef __APPLE__ +# include <xlocale.h> +#endif + +#ifdef _WIN32 +# include <windows.h> +# include <locale> // for libc++ locale_win32.h +#else +# include <sys/param.h> // for FreeBSD version +# include <sys/types.h> // for ssize_t +#endif + +#ifndef _MSC_VER +struct stat; +#endif + +namespace test { + +#ifndef _MSC_VER +// Size type for read and write. +typedef size_t size_t; +typedef ssize_t ssize_t; +int open(const char* path, int oflag, int mode); +int fstat(int fd, struct stat* buf); +#else +typedef unsigned size_t; +typedef int ssize_t; +errno_t sopen_s(int* pfh, const char* filename, int oflag, int shflag, + int pmode); +#endif + +#ifndef _WIN32 +long sysconf(int name); +#else +DWORD GetFileSize(HANDLE hFile, LPDWORD lpFileSizeHigh); +#endif + +int close(int fildes); + +int dup(int fildes); +int dup2(int fildes, int fildes2); + +FILE* fdopen(int fildes, const char* mode); + +ssize_t read(int fildes, void* buf, size_t nbyte); +ssize_t write(int fildes, const void* buf, size_t nbyte); + +#ifndef _WIN32 +int pipe(int fildes[2]); +#else +int pipe(int* pfds, unsigned psize, int textmode); +#endif + +FILE* fopen(const char* filename, const char* mode); +int fclose(FILE* stream); +int(fileno)(FILE* stream); + +#if defined(FMT_LOCALE) && (!defined(_WIN32) || defined(_LIBCPP_VERSION)) +locale_t newlocale(int category_mask, const char* locale, locale_t base); +#endif +} // namespace test + +#define FMT_SYSTEM(call) test::call + +#endif // FMT_POSIX_TEST_H diff --git a/contrib/libs/fmt/test/printf-test.cc b/contrib/libs/fmt/test/printf-test.cc new file mode 100644 index 0000000000..ccd72dcd75 --- /dev/null +++ b/contrib/libs/fmt/test/printf-test.cc @@ -0,0 +1,628 @@ +// Formatting library for C++ - printf tests +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#include "fmt/printf.h" + +#include <cctype> +#include <climits> +#include <cstring> + +#include "fmt/core.h" +#include "gtest-extra.h" +#include "util.h" + +using fmt::format; +using fmt::format_error; +using fmt::detail::max_value; + +const unsigned BIG_NUM = INT_MAX + 1u; + +// Makes format string argument positional. +static std::string make_positional(fmt::string_view format) { + std::string s(format.data(), format.size()); + s.replace(s.find('%'), 1, "%1$"); + return s; +} + +static std::wstring make_positional(fmt::wstring_view format) { + std::wstring s(format.data(), format.size()); + s.replace(s.find(L'%'), 1, L"%1$"); + return s; +} + +// A wrapper around fmt::sprintf to workaround bogus warnings about invalid +// format strings in MSVC. +template <typename... Args> +std::string test_sprintf(fmt::string_view format, const Args&... args) { + return fmt::sprintf(format, args...); +} +template <typename... Args> +std::wstring test_sprintf(fmt::wstring_view format, const Args&... args) { + return fmt::sprintf(format, args...); +} + +#define EXPECT_PRINTF(expected_output, format, arg) \ + EXPECT_EQ(expected_output, test_sprintf(format, arg)) \ + << "format: " << format; \ + EXPECT_EQ(expected_output, fmt::sprintf(make_positional(format), arg)) + +TEST(PrintfTest, NoArgs) { + EXPECT_EQ("test", test_sprintf("test")); + EXPECT_EQ(L"test", fmt::sprintf(L"test")); +} + +TEST(PrintfTest, Escape) { + EXPECT_EQ("%", test_sprintf("%%")); + EXPECT_EQ("before %", test_sprintf("before %%")); + EXPECT_EQ("% after", test_sprintf("%% after")); + EXPECT_EQ("before % after", test_sprintf("before %% after")); + EXPECT_EQ("%s", test_sprintf("%%s")); + EXPECT_EQ(L"%", fmt::sprintf(L"%%")); + EXPECT_EQ(L"before %", fmt::sprintf(L"before %%")); + EXPECT_EQ(L"% after", fmt::sprintf(L"%% after")); + EXPECT_EQ(L"before % after", fmt::sprintf(L"before %% after")); + EXPECT_EQ(L"%s", fmt::sprintf(L"%%s")); +} + +TEST(PrintfTest, PositionalArgs) { + EXPECT_EQ("42", test_sprintf("%1$d", 42)); + EXPECT_EQ("before 42", test_sprintf("before %1$d", 42)); + EXPECT_EQ("42 after", test_sprintf("%1$d after", 42)); + EXPECT_EQ("before 42 after", test_sprintf("before %1$d after", 42)); + EXPECT_EQ("answer = 42", test_sprintf("%1$s = %2$d", "answer", 42)); + EXPECT_EQ("42 is the answer", test_sprintf("%2$d is the %1$s", "answer", 42)); + EXPECT_EQ("abracadabra", test_sprintf("%1$s%2$s%1$s", "abra", "cad")); +} + +TEST(PrintfTest, AutomaticArgIndexing) { + EXPECT_EQ("abc", test_sprintf("%c%c%c", 'a', 'b', 'c')); +} + +TEST(PrintfTest, NumberIsTooBigInArgIndex) { + EXPECT_THROW_MSG(test_sprintf(format("%{}$", BIG_NUM)), format_error, + "number is too big"); + EXPECT_THROW_MSG(test_sprintf(format("%{}$d", BIG_NUM)), format_error, + "number is too big"); +} + +TEST(PrintfTest, SwitchArgIndexing) { + EXPECT_THROW_MSG(test_sprintf("%1$d%", 1, 2), format_error, + "cannot switch from manual to automatic argument indexing"); + EXPECT_THROW_MSG(test_sprintf(format("%1$d%{}d", BIG_NUM), 1, 2), + format_error, "number is too big"); + EXPECT_THROW_MSG(test_sprintf("%1$d%d", 1, 2), format_error, + "cannot switch from manual to automatic argument indexing"); + + EXPECT_THROW_MSG(test_sprintf("%d%1$", 1, 2), format_error, + "cannot switch from automatic to manual argument indexing"); + EXPECT_THROW_MSG(test_sprintf(format("%d%{}$d", BIG_NUM), 1, 2), format_error, + "number is too big"); + EXPECT_THROW_MSG(test_sprintf("%d%1$d", 1, 2), format_error, + "cannot switch from automatic to manual argument indexing"); + + // Indexing errors override width errors. + EXPECT_THROW_MSG(test_sprintf(format("%d%1${}d", BIG_NUM), 1, 2), + format_error, "number is too big"); + EXPECT_THROW_MSG(test_sprintf(format("%1$d%{}d", BIG_NUM), 1, 2), + format_error, "number is too big"); +} + +TEST(PrintfTest, InvalidArgIndex) { + EXPECT_THROW_MSG(test_sprintf("%0$d", 42), format_error, + "argument not found"); + EXPECT_THROW_MSG(test_sprintf("%2$d", 42), format_error, + "argument not found"); + EXPECT_THROW_MSG(test_sprintf(format("%{}$d", INT_MAX), 42), format_error, + "argument not found"); + + EXPECT_THROW_MSG(test_sprintf("%2$", 42), format_error, "argument not found"); + EXPECT_THROW_MSG(test_sprintf(format("%{}$d", BIG_NUM), 42), format_error, + "number is too big"); +} + +TEST(PrintfTest, DefaultAlignRight) { + EXPECT_PRINTF(" 42", "%5d", 42); + EXPECT_PRINTF(" abc", "%5s", "abc"); +} + +TEST(PrintfTest, ZeroFlag) { + EXPECT_PRINTF("00042", "%05d", 42); + EXPECT_PRINTF("-0042", "%05d", -42); + + EXPECT_PRINTF("00042", "%05d", 42); + EXPECT_PRINTF("-0042", "%05d", -42); + EXPECT_PRINTF("-004.2", "%06g", -4.2); + + EXPECT_PRINTF("+00042", "%00+6d", 42); + + EXPECT_PRINTF(" 42", "%05.d", 42); + EXPECT_PRINTF(" 0042", "%05.4d", 42); + + // '0' flag is ignored for non-numeric types. + EXPECT_PRINTF(" x", "%05c", 'x'); +} + +TEST(PrintfTest, PlusFlag) { + EXPECT_PRINTF("+42", "%+d", 42); + EXPECT_PRINTF("-42", "%+d", -42); + EXPECT_PRINTF("+0042", "%+05d", 42); + EXPECT_PRINTF("+0042", "%0++5d", 42); + + // '+' flag is ignored for non-numeric types. + EXPECT_PRINTF("x", "%+c", 'x'); + + // '+' flag wins over space flag + EXPECT_PRINTF("+42", "%+ d", 42); + EXPECT_PRINTF("-42", "%+ d", -42); + EXPECT_PRINTF("+42", "% +d", 42); + EXPECT_PRINTF("-42", "% +d", -42); + EXPECT_PRINTF("+0042", "% +05d", 42); + EXPECT_PRINTF("+0042", "%0+ 5d", 42); + + // '+' flag and space flag are both ignored for non-numeric types. + EXPECT_PRINTF("x", "%+ c", 'x'); + EXPECT_PRINTF("x", "% +c", 'x'); +} + +TEST(PrintfTest, MinusFlag) { + EXPECT_PRINTF("abc ", "%-5s", "abc"); + EXPECT_PRINTF("abc ", "%0--5s", "abc"); + + EXPECT_PRINTF("7 ", "%-5d", 7); + EXPECT_PRINTF("97 ", "%-5hhi", 'a'); + EXPECT_PRINTF("a ", "%-5c", 'a'); + + // '0' flag is ignored if '-' flag is given + EXPECT_PRINTF("7 ", "%-05d", 7); + EXPECT_PRINTF("7 ", "%0-5d", 7); + EXPECT_PRINTF("a ", "%-05c", 'a'); + EXPECT_PRINTF("a ", "%0-5c", 'a'); + EXPECT_PRINTF("97 ", "%-05hhi", 'a'); + EXPECT_PRINTF("97 ", "%0-5hhi", 'a'); + + // '-' and space flag don't interfere + EXPECT_PRINTF(" 42", "%- d", 42); +} + +TEST(PrintfTest, SpaceFlag) { + EXPECT_PRINTF(" 42", "% d", 42); + EXPECT_PRINTF("-42", "% d", -42); + EXPECT_PRINTF(" 0042", "% 05d", 42); + EXPECT_PRINTF(" 0042", "%0 5d", 42); + + // ' ' flag is ignored for non-numeric types. + EXPECT_PRINTF("x", "% c", 'x'); +} + +TEST(PrintfTest, HashFlag) { + EXPECT_PRINTF("042", "%#o", 042); + EXPECT_PRINTF(fmt::format("0{:o}", static_cast<unsigned>(-042)), "%#o", -042); + EXPECT_PRINTF("0", "%#o", 0); + + EXPECT_PRINTF("0x42", "%#x", 0x42); + EXPECT_PRINTF("0X42", "%#X", 0x42); + EXPECT_PRINTF(fmt::format("0x{:x}", static_cast<unsigned>(-0x42)), "%#x", + -0x42); + EXPECT_PRINTF("0", "%#x", 0); + + EXPECT_PRINTF("0x0042", "%#06x", 0x42); + EXPECT_PRINTF("0x0042", "%0##6x", 0x42); + + EXPECT_PRINTF("-42.000000", "%#f", -42.0); + EXPECT_PRINTF("-42.000000", "%#F", -42.0); + + char buffer[BUFFER_SIZE]; + safe_sprintf(buffer, "%#e", -42.0); + EXPECT_PRINTF(buffer, "%#e", -42.0); + safe_sprintf(buffer, "%#E", -42.0); + EXPECT_PRINTF(buffer, "%#E", -42.0); + + EXPECT_PRINTF("-42.0000", "%#g", -42.0); + EXPECT_PRINTF("-42.0000", "%#G", -42.0); + + safe_sprintf(buffer, "%#a", 16.0); + EXPECT_PRINTF(buffer, "%#a", 16.0); + safe_sprintf(buffer, "%#A", 16.0); + EXPECT_PRINTF(buffer, "%#A", 16.0); + + // '#' flag is ignored for non-numeric types. + EXPECT_PRINTF("x", "%#c", 'x'); +} + +TEST(PrintfTest, Width) { + EXPECT_PRINTF(" abc", "%5s", "abc"); + + // Width cannot be specified twice. + EXPECT_THROW_MSG(test_sprintf("%5-5d", 42), format_error, + "invalid type specifier"); + + EXPECT_THROW_MSG(test_sprintf(format("%{}d", BIG_NUM), 42), format_error, + "number is too big"); + EXPECT_THROW_MSG(test_sprintf(format("%1${}d", BIG_NUM), 42), format_error, + "number is too big"); +} + +TEST(PrintfTest, DynamicWidth) { + EXPECT_EQ(" 42", test_sprintf("%*d", 5, 42)); + EXPECT_EQ("42 ", test_sprintf("%*d", -5, 42)); + EXPECT_THROW_MSG(test_sprintf("%*d", 5.0, 42), format_error, + "width is not integer"); + EXPECT_THROW_MSG(test_sprintf("%*d"), format_error, "argument not found"); + EXPECT_THROW_MSG(test_sprintf("%*d", BIG_NUM, 42), format_error, + "number is too big"); +} + +TEST(PrintfTest, IntPrecision) { + EXPECT_PRINTF("00042", "%.5d", 42); + EXPECT_PRINTF("-00042", "%.5d", -42); + EXPECT_PRINTF("00042", "%.5x", 0x42); + EXPECT_PRINTF("0x00042", "%#.5x", 0x42); + EXPECT_PRINTF("00042", "%.5o", 042); + EXPECT_PRINTF("00042", "%#.5o", 042); + + EXPECT_PRINTF(" 00042", "%7.5d", 42); + EXPECT_PRINTF(" 00042", "%7.5x", 0x42); + EXPECT_PRINTF(" 0x00042", "%#10.5x", 0x42); + EXPECT_PRINTF(" 00042", "%7.5o", 042); + EXPECT_PRINTF(" 00042", "%#10.5o", 042); + + EXPECT_PRINTF("00042 ", "%-7.5d", 42); + EXPECT_PRINTF("00042 ", "%-7.5x", 0x42); + EXPECT_PRINTF("0x00042 ", "%-#10.5x", 0x42); + EXPECT_PRINTF("00042 ", "%-7.5o", 042); + EXPECT_PRINTF("00042 ", "%-#10.5o", 042); +} + +TEST(PrintfTest, FloatPrecision) { + char buffer[BUFFER_SIZE]; + safe_sprintf(buffer, "%.3e", 1234.5678); + EXPECT_PRINTF(buffer, "%.3e", 1234.5678); + EXPECT_PRINTF("1234.568", "%.3f", 1234.5678); + EXPECT_PRINTF("1.23e+03", "%.3g", 1234.5678); + safe_sprintf(buffer, "%.3a", 1234.5678); + EXPECT_PRINTF(buffer, "%.3a", 1234.5678); +} + +TEST(PrintfTest, StringPrecision) { + char test[] = {'H', 'e', 'l', 'l', 'o'}; + EXPECT_EQ(fmt::sprintf("%.4s", test), "Hell"); +} + +TEST(PrintfTest, IgnorePrecisionForNonNumericArg) { + EXPECT_PRINTF("abc", "%.5s", "abc"); +} + +TEST(PrintfTest, DynamicPrecision) { + EXPECT_EQ("00042", test_sprintf("%.*d", 5, 42)); + EXPECT_EQ("42", test_sprintf("%.*d", -5, 42)); + EXPECT_THROW_MSG(test_sprintf("%.*d", 5.0, 42), format_error, + "precision is not integer"); + EXPECT_THROW_MSG(test_sprintf("%.*d"), format_error, "argument not found"); + EXPECT_THROW_MSG(test_sprintf("%.*d", BIG_NUM, 42), format_error, + "number is too big"); + if (sizeof(long long) != sizeof(int)) { + long long prec = static_cast<long long>(INT_MIN) - 1; + EXPECT_THROW_MSG(test_sprintf("%.*d", prec, 42), format_error, + "number is too big"); + } +} + +template <typename T> struct make_signed { typedef T type; }; + +#define SPECIALIZE_MAKE_SIGNED(T, S) \ + template <> struct make_signed<T> { typedef S type; } + +SPECIALIZE_MAKE_SIGNED(char, signed char); +SPECIALIZE_MAKE_SIGNED(unsigned char, signed char); +SPECIALIZE_MAKE_SIGNED(unsigned short, short); +SPECIALIZE_MAKE_SIGNED(unsigned, int); +SPECIALIZE_MAKE_SIGNED(unsigned long, long); +SPECIALIZE_MAKE_SIGNED(unsigned long long, long long); + +// Test length format specifier ``length_spec``. +template <typename T, typename U> +void TestLength(const char* length_spec, U value) { + long long signed_value = 0; + unsigned long long unsigned_value = 0; + // Apply integer promotion to the argument. + unsigned long long max = max_value<U>(); + using fmt::detail::const_check; + if (const_check(max <= static_cast<unsigned>(max_value<int>()))) { + signed_value = static_cast<int>(value); + unsigned_value = static_cast<unsigned long long>(value); + } else if (const_check(max <= max_value<unsigned>())) { + signed_value = static_cast<unsigned>(value); + unsigned_value = static_cast<unsigned long long>(value); + } + if (sizeof(U) <= sizeof(int) && sizeof(int) < sizeof(T)) { + signed_value = static_cast<long long>(value); + unsigned_value = static_cast<unsigned long long>( + static_cast<typename std::make_unsigned<unsigned>::type>(value)); + } else { + signed_value = static_cast<typename make_signed<T>::type>(value); + unsigned_value = static_cast<typename std::make_unsigned<T>::type>(value); + } + std::ostringstream os; + os << signed_value; + EXPECT_PRINTF(os.str(), fmt::format("%{}d", length_spec), value); + EXPECT_PRINTF(os.str(), fmt::format("%{}i", length_spec), value); + os.str(""); + os << unsigned_value; + EXPECT_PRINTF(os.str(), fmt::format("%{}u", length_spec), value); + os.str(""); + os << std::oct << unsigned_value; + EXPECT_PRINTF(os.str(), fmt::format("%{}o", length_spec), value); + os.str(""); + os << std::hex << unsigned_value; + EXPECT_PRINTF(os.str(), fmt::format("%{}x", length_spec), value); + os.str(""); + os << std::hex << std::uppercase << unsigned_value; + EXPECT_PRINTF(os.str(), fmt::format("%{}X", length_spec), value); +} + +template <typename T> void TestLength(const char* length_spec) { + T min = std::numeric_limits<T>::min(), max = max_value<T>(); + TestLength<T>(length_spec, 42); + TestLength<T>(length_spec, -42); + TestLength<T>(length_spec, min); + TestLength<T>(length_spec, max); + long long long_long_min = std::numeric_limits<long long>::min(); + if (static_cast<long long>(min) > long_long_min) + TestLength<T>(length_spec, static_cast<long long>(min) - 1); + unsigned long long long_long_max = max_value<long long>(); + if (static_cast<unsigned long long>(max) < long_long_max) + TestLength<T>(length_spec, static_cast<long long>(max) + 1); + TestLength<T>(length_spec, std::numeric_limits<short>::min()); + TestLength<T>(length_spec, max_value<unsigned short>()); + TestLength<T>(length_spec, std::numeric_limits<int>::min()); + TestLength<T>(length_spec, max_value<int>()); + TestLength<T>(length_spec, std::numeric_limits<unsigned>::min()); + TestLength<T>(length_spec, max_value<unsigned>()); + TestLength<T>(length_spec, std::numeric_limits<long long>::min()); + TestLength<T>(length_spec, max_value<long long>()); + TestLength<T>(length_spec, std::numeric_limits<unsigned long long>::min()); + TestLength<T>(length_spec, max_value<unsigned long long>()); +} + +TEST(PrintfTest, Length) { + TestLength<char>("hh"); + TestLength<signed char>("hh"); + TestLength<unsigned char>("hh"); + TestLength<short>("h"); + TestLength<unsigned short>("h"); + TestLength<long>("l"); + TestLength<unsigned long>("l"); + TestLength<long long>("ll"); + TestLength<unsigned long long>("ll"); + TestLength<intmax_t>("j"); + TestLength<size_t>("z"); + TestLength<std::ptrdiff_t>("t"); + long double max = max_value<long double>(); + EXPECT_PRINTF(fmt::format("{:.6}", max), "%g", max); + EXPECT_PRINTF(fmt::format("{:.6}", max), "%Lg", max); +} + +TEST(PrintfTest, Bool) { + EXPECT_PRINTF("1", "%d", true); + EXPECT_PRINTF("true", "%s", true); +} + +TEST(PrintfTest, Int) { + EXPECT_PRINTF("-42", "%d", -42); + EXPECT_PRINTF("-42", "%i", -42); + unsigned u = 0 - 42u; + EXPECT_PRINTF(fmt::format("{}", u), "%u", -42); + EXPECT_PRINTF(fmt::format("{:o}", u), "%o", -42); + EXPECT_PRINTF(fmt::format("{:x}", u), "%x", -42); + EXPECT_PRINTF(fmt::format("{:X}", u), "%X", -42); +} + +TEST(PrintfTest, long_long) { + // fmt::printf allows passing long long arguments to %d without length + // specifiers. + long long max = max_value<long long>(); + EXPECT_PRINTF(fmt::format("{}", max), "%d", max); +} + +TEST(PrintfTest, Float) { + EXPECT_PRINTF("392.650000", "%f", 392.65); + EXPECT_PRINTF("392.65", "%.2f", 392.65); + EXPECT_PRINTF("392.6", "%.1f", 392.65); + EXPECT_PRINTF("393", "%.f", 392.65); + EXPECT_PRINTF("392.650000", "%F", 392.65); + char buffer[BUFFER_SIZE]; + safe_sprintf(buffer, "%e", 392.65); + EXPECT_PRINTF(buffer, "%e", 392.65); + safe_sprintf(buffer, "%E", 392.65); + EXPECT_PRINTF(buffer, "%E", 392.65); + EXPECT_PRINTF("392.65", "%g", 392.65); + EXPECT_PRINTF("392.65", "%G", 392.65); + EXPECT_PRINTF("392", "%g", 392.0); + EXPECT_PRINTF("392", "%G", 392.0); + EXPECT_PRINTF("4.56e-07", "%g", 0.000000456); + safe_sprintf(buffer, "%a", -392.65); + EXPECT_EQ(buffer, format("{:a}", -392.65)); + safe_sprintf(buffer, "%A", -392.65); + EXPECT_EQ(buffer, format("{:A}", -392.65)); +} + +TEST(PrintfTest, Inf) { + double inf = std::numeric_limits<double>::infinity(); + for (const char* type = "fega"; *type; ++type) { + EXPECT_PRINTF("inf", fmt::format("%{}", *type), inf); + char upper = static_cast<char>(std::toupper(*type)); + EXPECT_PRINTF("INF", fmt::format("%{}", upper), inf); + } +} + +TEST(PrintfTest, Char) { + EXPECT_PRINTF("x", "%c", 'x'); + int max = max_value<int>(); + EXPECT_PRINTF(fmt::format("{}", static_cast<char>(max)), "%c", max); + // EXPECT_PRINTF("x", "%lc", L'x'); + EXPECT_PRINTF(L"x", L"%c", L'x'); + EXPECT_PRINTF(fmt::format(L"{}", static_cast<wchar_t>(max)), L"%c", max); +} + +TEST(PrintfTest, String) { + EXPECT_PRINTF("abc", "%s", "abc"); + const char* null_str = nullptr; + EXPECT_PRINTF("(null)", "%s", null_str); + EXPECT_PRINTF(" (null)", "%10s", null_str); + EXPECT_PRINTF(L"abc", L"%s", L"abc"); + const wchar_t* null_wstr = nullptr; + EXPECT_PRINTF(L"(null)", L"%s", null_wstr); + EXPECT_PRINTF(L" (null)", L"%10s", null_wstr); +} + +TEST(PrintfTest, UCharString) { + unsigned char str[] = "test"; + unsigned char* pstr = str; + EXPECT_EQ("test", fmt::sprintf("%s", pstr)); +} + +TEST(PrintfTest, Pointer) { + int n; + void* p = &n; + EXPECT_PRINTF(fmt::format("{}", p), "%p", p); + p = nullptr; + EXPECT_PRINTF("(nil)", "%p", p); + EXPECT_PRINTF(" (nil)", "%10p", p); + const char* s = "test"; + EXPECT_PRINTF(fmt::format("{:p}", s), "%p", s); + const char* null_str = nullptr; + EXPECT_PRINTF("(nil)", "%p", null_str); + + p = &n; + EXPECT_PRINTF(fmt::format(L"{}", p), L"%p", p); + p = nullptr; + EXPECT_PRINTF(L"(nil)", L"%p", p); + EXPECT_PRINTF(L" (nil)", L"%10p", p); + const wchar_t* w = L"test"; + EXPECT_PRINTF(fmt::format(L"{:p}", w), L"%p", w); + const wchar_t* null_wstr = nullptr; + EXPECT_PRINTF(L"(nil)", L"%p", null_wstr); +} + +TEST(PrintfTest, Location) { + // TODO: test %n +} + +enum test_enum { answer = 42 }; + +TEST(PrintfTest, Enum) { + EXPECT_PRINTF("42", "%d", answer); + volatile test_enum volatile_enum = answer; + EXPECT_PRINTF("42", "%d", volatile_enum); +} + +#if FMT_USE_FCNTL +TEST(PrintfTest, Examples) { + const char* weekday = "Thursday"; + const char* month = "August"; + int day = 21; + EXPECT_WRITE(stdout, fmt::printf("%1$s, %3$d %2$s", weekday, month, day), + "Thursday, 21 August"); +} + +TEST(PrintfTest, PrintfError) { + fmt::file read_end, write_end; + fmt::file::pipe(read_end, write_end); + int result = fmt::fprintf(read_end.fdopen("r").get(), "test"); + EXPECT_LT(result, 0); +} +#endif + +TEST(PrintfTest, WideString) { EXPECT_EQ(L"abc", fmt::sprintf(L"%s", L"abc")); } + +TEST(PrintfTest, PrintfCustom) { + EXPECT_EQ("abc", test_sprintf("%s", TestString("abc"))); +} + +TEST(PrintfTest, OStream) { + std::ostringstream os; + int ret = fmt::fprintf(os, "Don't %s!", "panic"); + EXPECT_EQ("Don't panic!", os.str()); + EXPECT_EQ(12, ret); +} + +TEST(PrintfTest, VPrintf) { + fmt::format_arg_store<fmt::printf_context, int> as{42}; + fmt::basic_format_args<fmt::printf_context> args(as); + EXPECT_EQ(fmt::vsprintf("%d", args), "42"); + EXPECT_WRITE(stdout, fmt::vprintf("%d", args), "42"); + EXPECT_WRITE(stdout, fmt::vfprintf(stdout, "%d", args), "42"); + EXPECT_WRITE(stdout, fmt::vfprintf(std::cout, "%d", args), "42"); +} + +template <typename... Args> +void check_format_string_regression(fmt::string_view s, const Args&... args) { + fmt::sprintf(s, args...); +} + +TEST(PrintfTest, CheckFormatStringRegression) { + check_format_string_regression("%c%s", 'x', ""); +} + +TEST(PrintfTest, FixedLargeExponent) { + EXPECT_EQ("1000000000000000000000", fmt::sprintf("%.*f", -13, 1e21)); +} + +TEST(PrintfTest, VSPrintfMakeArgsExample) { + fmt::format_arg_store<fmt::printf_context, int, const char*> as{42, + "something"}; + fmt::basic_format_args<fmt::printf_context> args(as); + EXPECT_EQ("[42] something happened", fmt::vsprintf("[%d] %s happened", args)); + auto as2 = fmt::make_printf_args(42, "something"); + fmt::basic_format_args<fmt::printf_context> args2(as2); + EXPECT_EQ("[42] something happened", + fmt::vsprintf("[%d] %s happened", args2)); + // The older gcc versions can't cast the return value. +#if !defined(__GNUC__) || (__GNUC__ > 4) + EXPECT_EQ("[42] something happened", + fmt::vsprintf("[%d] %s happened", + {fmt::make_printf_args(42, "something")})); +#endif +} + +TEST(PrintfTest, VSPrintfMakeWArgsExample) { + fmt::format_arg_store<fmt::wprintf_context, int, const wchar_t*> as{ + 42, L"something"}; + fmt::basic_format_args<fmt::wprintf_context> args(as); + EXPECT_EQ(L"[42] something happened", + fmt::vsprintf(L"[%d] %s happened", args)); + auto as2 = fmt::make_wprintf_args(42, L"something"); + fmt::basic_format_args<fmt::wprintf_context> args2(as2); + EXPECT_EQ(L"[42] something happened", + fmt::vsprintf(L"[%d] %s happened", args2)); + // the older gcc versions can't cast the return value +#if !defined(__GNUC__) || (__GNUC__ > 4) + EXPECT_EQ(L"[42] something happened", + fmt::vsprintf(L"[%d] %s happened", + {fmt::make_wprintf_args(42, L"something")})); +#endif +} + +TEST(PrintfTest, PrintfDetermineOutputSize) { + using backit = std::back_insert_iterator<std::vector<char>>; + using truncated_printf_context = + fmt::basic_printf_context<fmt::detail::truncating_iterator<backit>, char>; + + auto v = std::vector<char>{}; + auto it = std::back_inserter(v); + + const auto format_string = "%s"; + const auto format_arg = "Hello"; + const auto expected_size = fmt::sprintf(format_string, format_arg).size(); + + EXPECT_EQ((truncated_printf_context( + fmt::detail::truncating_iterator<backit>(it, 0), format_string, + fmt::make_format_args<truncated_printf_context>(format_arg)) + .format() + .count()), + expected_size); +} diff --git a/contrib/libs/fmt/test/printf-test/ya.make b/contrib/libs/fmt/test/printf-test/ya.make new file mode 100644 index 0000000000..ec264a6c81 --- /dev/null +++ b/contrib/libs/fmt/test/printf-test/ya.make @@ -0,0 +1,37 @@ +# Generated by devtools/yamaker. + +GTEST() + +WITHOUT_LICENSE_TEXTS() + +OWNER( + orivej + g:cpp-contrib +) + +LICENSE(MIT) + +PEERDIR( + contrib/libs/fmt + contrib/libs/fmt/test +) + +NO_COMPILER_WARNINGS() + +NO_UTIL() + +CFLAGS( + -DFMT_LOCALE + -DFMT_SHARED + -DGTEST_HAS_STD_WSTRING=1 + -DGTEST_LANG_CXX11=0 + -D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING=1 +) + +SRCDIR(contrib/libs/fmt/test) + +SRCS( + printf-test.cc +) + +END() diff --git a/contrib/libs/fmt/test/ranges-test.cc b/contrib/libs/fmt/test/ranges-test.cc new file mode 100644 index 0000000000..394f7b81be --- /dev/null +++ b/contrib/libs/fmt/test/ranges-test.cc @@ -0,0 +1,203 @@ +// Formatting library for C++ - the core API +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. +// +// Copyright (c) 2018 - present, Remotion (Igor Schulz) +// All Rights Reserved +// {fmt} support for ranges, containers and types tuple interface. + +#include "fmt/ranges.h" + +#include <gtest/gtest.h> + +// Check if 'if constexpr' is supported. +#if (__cplusplus > 201402L) || \ + (defined(_MSVC_LANG) && _MSVC_LANG > 201402L && _MSC_VER >= 1910) + +# include <array> +# include <map> +# include <string> +# include <vector> + +TEST(RangesTest, FormatVector) { + std::vector<int32_t> iv{1, 2, 3, 5, 7, 11}; + auto ivf = fmt::format("{}", iv); + EXPECT_EQ("{1, 2, 3, 5, 7, 11}", ivf); +} + +TEST(RangesTest, FormatVector2) { + std::vector<std::vector<int32_t>> ivv{{1, 2}, {3, 5}, {7, 11}}; + auto ivf = fmt::format("{}", ivv); + EXPECT_EQ("{{1, 2}, {3, 5}, {7, 11}}", ivf); +} + +TEST(RangesTest, FormatMap) { + std::map<std::string, int32_t> simap{{"one", 1}, {"two", 2}}; + EXPECT_EQ("{(\"one\", 1), (\"two\", 2)}", fmt::format("{}", simap)); +} + +TEST(RangesTest, FormatPair) { + std::pair<int64_t, float> pa1{42, 1.5f}; + EXPECT_EQ("(42, 1.5)", fmt::format("{}", pa1)); +} + +TEST(RangesTest, FormatTuple) { + std::tuple<int64_t, float, std::string, char> t{42, 1.5f, "this is tuple", + 'i'}; + EXPECT_EQ("(42, 1.5, \"this is tuple\", 'i')", fmt::format("{}", t)); + EXPECT_EQ("()", fmt::format("{}", std::tuple<>())); +} + +TEST(RangesTest, JoinTuple) { + // Value tuple args + std::tuple<char, int, float> t1 = std::make_tuple('a', 1, 2.0f); + EXPECT_EQ("(a, 1, 2)", fmt::format("({})", fmt::join(t1, ", "))); + + // Testing lvalue tuple args + int x = 4; + std::tuple<char, int&> t2{'b', x}; + EXPECT_EQ("b + 4", fmt::format("{}", fmt::join(t2, " + "))); + + // Empty tuple + std::tuple<> t3; + EXPECT_EQ("", fmt::format("{}", fmt::join(t3, "|"))); + + // Single element tuple + std::tuple<float> t4{4.0f}; + EXPECT_EQ("4", fmt::format("{}", fmt::join(t4, "/"))); +} + +TEST(RangesTest, JoinInitializerList) { + EXPECT_EQ("1, 2, 3", fmt::format("{}", fmt::join({1, 2, 3}, ", "))); + EXPECT_EQ("fmt rocks !", + fmt::format("{}", fmt::join({"fmt", "rocks", "!"}, " "))); +} + +struct my_struct { + int32_t i; + std::string str; // can throw + template <size_t N> decltype(auto) get() const noexcept { + if constexpr (N == 0) + return i; + else if constexpr (N == 1) + return fmt::string_view{str}; + } +}; + +template <size_t N> decltype(auto) get(const my_struct& s) noexcept { + return s.get<N>(); +} + +namespace std { + +template <> struct tuple_size<my_struct> : std::integral_constant<size_t, 2> {}; + +template <size_t N> struct tuple_element<N, my_struct> { + using type = decltype(std::declval<my_struct>().get<N>()); +}; + +} // namespace std + +TEST(RangesTest, FormatStruct) { + my_struct mst{13, "my struct"}; + EXPECT_EQ("(13, \"my struct\")", fmt::format("{}", mst)); +} + +TEST(RangesTest, FormatTo) { + char buf[10]; + auto end = fmt::format_to(buf, "{}", std::vector{1, 2, 3}); + *end = '\0'; + EXPECT_STREQ(buf, "{1, 2, 3}"); +} + +struct path_like { + const path_like* begin() const; + const path_like* end() const; + + operator std::string() const; +}; + +TEST(RangesTest, PathLike) { + EXPECT_FALSE((fmt::is_range<path_like, char>::value)); +} + +#endif // (__cplusplus > 201402L) || (defined(_MSVC_LANG) && _MSVC_LANG > + // 201402L && _MSC_VER >= 1910) + +#ifdef FMT_USE_STRING_VIEW +struct string_like { + const char* begin(); + const char* end(); + explicit operator fmt::string_view() const { return "foo"; } + explicit operator std::string_view() const { return "foo"; } +}; + +TEST(RangesTest, FormatStringLike) { + EXPECT_EQ("foo", fmt::format("{}", string_like())); +} +#endif // FMT_USE_STRING_VIEW + +struct zstring_sentinel {}; + +bool operator==(const char* p, zstring_sentinel) { return *p == '\0'; } +bool operator!=(const char* p, zstring_sentinel) { return *p != '\0'; } + +struct zstring { + const char* p; + const char* begin() const { return p; } + zstring_sentinel end() const { return {}; } +}; + +TEST(RangesTest, JoinSentinel) { + zstring hello{"hello"}; + EXPECT_EQ("{'h', 'e', 'l', 'l', 'o'}", fmt::format("{}", hello)); + EXPECT_EQ("h_e_l_l_o", fmt::format("{}", fmt::join(hello, "_"))); +} + +// A range that provides non-const only begin()/end() to test fmt::join handles +// that +// +// Some ranges (eg those produced by range-v3's views::filter()) can cache +// information during iteration so they only provide non-const begin()/end(). +template <typename T> class non_const_only_range { + private: + std::vector<T> vec; + + public: + using const_iterator = typename ::std::vector<T>::const_iterator; + + template <typename... Args> + explicit non_const_only_range(Args&&... args) + : vec(::std::forward<Args>(args)...) {} + + const_iterator begin() { return vec.begin(); } + const_iterator end() { return vec.end(); } +}; + +TEST(RangesTest, JoinRange) { + non_const_only_range<int> x(3u, 0); + EXPECT_EQ("0,0,0", fmt::format("{}", fmt::join(x, ","))); + EXPECT_EQ( + "0,0,0", + fmt::format("{}", fmt::join(non_const_only_range<int>(3u, 0), ","))); + + std::vector<int> y(3u, 0); + EXPECT_EQ("0,0,0", fmt::format("{}", fmt::join(y, ","))); + EXPECT_EQ("0,0,0", + fmt::format("{}", fmt::join(std::vector<int>(3u, 0), ","))); + + const std::vector<int> z(3u, 0); + EXPECT_EQ("0,0,0", fmt::format("{}", fmt::join(z, ","))); +} + +#if !FMT_MSC_VER || FMT_MSC_VER >= 1927 +struct unformattable {}; + +TEST(RangesTest, UnformattableRange) { + EXPECT_FALSE((fmt::has_formatter<std::vector<unformattable>, + fmt::format_context>::value)); +} +#endif diff --git a/contrib/libs/fmt/test/ranges-test/ya.make b/contrib/libs/fmt/test/ranges-test/ya.make new file mode 100644 index 0000000000..6856e12893 --- /dev/null +++ b/contrib/libs/fmt/test/ranges-test/ya.make @@ -0,0 +1,37 @@ +# Generated by devtools/yamaker. + +GTEST() + +WITHOUT_LICENSE_TEXTS() + +OWNER( + orivej + g:cpp-contrib +) + +LICENSE(MIT) + +PEERDIR( + contrib/libs/fmt + contrib/libs/fmt/test +) + +NO_COMPILER_WARNINGS() + +NO_UTIL() + +CFLAGS( + -DFMT_LOCALE + -DFMT_SHARED + -DGTEST_HAS_STD_WSTRING=1 + -DGTEST_LANG_CXX11=0 + -D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING=1 +) + +SRCDIR(contrib/libs/fmt/test) + +SRCS( + ranges-test.cc +) + +END() diff --git a/contrib/libs/fmt/test/scan-test.cc b/contrib/libs/fmt/test/scan-test.cc new file mode 100644 index 0000000000..90c0edef9b --- /dev/null +++ b/contrib/libs/fmt/test/scan-test.cc @@ -0,0 +1,116 @@ +// Formatting library for C++ - scanning API test +// +// Copyright (c) 2019 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#include "scan.h" + +#include <time.h> + +#include <climits> + +#include <gmock/gmock.h> +#include "gtest-extra.h" + +TEST(ScanTest, ReadText) { + fmt::string_view s = "foo"; + auto end = fmt::scan(s, "foo"); + EXPECT_EQ(end, s.end()); + EXPECT_THROW_MSG(fmt::scan("fob", "foo"), fmt::format_error, "invalid input"); +} + +TEST(ScanTest, ReadInt) { + int n = 0; + fmt::scan("42", "{}", n); + EXPECT_EQ(n, 42); + fmt::scan("-42", "{}", n); + EXPECT_EQ(n, -42); +} + +TEST(ScanTest, ReadLongLong) { + long long n = 0; + fmt::scan("42", "{}", n); + EXPECT_EQ(n, 42); + fmt::scan("-42", "{}", n); + EXPECT_EQ(n, -42); +} + +TEST(ScanTest, ReadUInt) { + unsigned n = 0; + fmt::scan("42", "{}", n); + EXPECT_EQ(n, 42); + EXPECT_THROW_MSG(fmt::scan("-42", "{}", n), fmt::format_error, + "invalid input"); +} + +TEST(ScanTest, ReadULongLong) { + unsigned long long n = 0; + fmt::scan("42", "{}", n); + EXPECT_EQ(n, 42); + EXPECT_THROW_MSG(fmt::scan("-42", "{}", n), fmt::format_error, + "invalid input"); +} + +TEST(ScanTest, ReadString) { + std::string s; + fmt::scan("foo", "{}", s); + EXPECT_EQ(s, "foo"); +} + +TEST(ScanTest, ReadStringView) { + fmt::string_view s; + fmt::scan("foo", "{}", s); + EXPECT_EQ(s, "foo"); +} + +#ifndef _WIN32 +namespace fmt { +template <> struct scanner<tm> { + std::string format; + + scan_parse_context::iterator parse(scan_parse_context& ctx) { + auto it = ctx.begin(); + if (it != ctx.end() && *it == ':') ++it; + auto end = it; + while (end != ctx.end() && *end != '}') ++end; + format.reserve(detail::to_unsigned(end - it + 1)); + format.append(it, end); + format.push_back('\0'); + return end; + } + + template <class ScanContext> + typename ScanContext::iterator scan(tm& t, ScanContext& ctx) { + auto result = strptime(ctx.begin(), format.c_str(), &t); + if (!result) throw format_error("failed to parse time"); + return result; + } +}; +} // namespace fmt + +TEST(ScanTest, ReadCustom) { + const char* input = "Date: 1985-10-25"; + auto t = tm(); + fmt::scan(input, "Date: {0:%Y-%m-%d}", t); + EXPECT_EQ(t.tm_year, 85); + EXPECT_EQ(t.tm_mon, 9); + EXPECT_EQ(t.tm_mday, 25); +} +#endif + +TEST(ScanTest, InvalidFormat) { + EXPECT_THROW_MSG(fmt::scan("", "{}"), fmt::format_error, + "argument index out of range"); + EXPECT_THROW_MSG(fmt::scan("", "{"), fmt::format_error, + "invalid format string"); +} + +TEST(ScanTest, Example) { + std::string key; + int value; + fmt::scan("answer = 42", "{} = {}", key, value); + EXPECT_EQ(key, "answer"); + EXPECT_EQ(value, 42); +} diff --git a/contrib/libs/fmt/test/scan-test/ya.make b/contrib/libs/fmt/test/scan-test/ya.make new file mode 100644 index 0000000000..2a3a49bd9a --- /dev/null +++ b/contrib/libs/fmt/test/scan-test/ya.make @@ -0,0 +1,37 @@ +# Generated by devtools/yamaker. + +GTEST() + +WITHOUT_LICENSE_TEXTS() + +OWNER( + orivej + g:cpp-contrib +) + +LICENSE(MIT) + +PEERDIR( + contrib/libs/fmt + contrib/libs/fmt/test +) + +NO_COMPILER_WARNINGS() + +NO_UTIL() + +CFLAGS( + -DFMT_LOCALE + -DFMT_SHARED + -DGTEST_HAS_STD_WSTRING=1 + -DGTEST_LANG_CXX11=0 + -D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING=1 +) + +SRCDIR(contrib/libs/fmt/test) + +SRCS( + scan-test.cc +) + +END() diff --git a/contrib/libs/fmt/test/scan.h b/contrib/libs/fmt/test/scan.h new file mode 100644 index 0000000000..de82067a49 --- /dev/null +++ b/contrib/libs/fmt/test/scan.h @@ -0,0 +1,238 @@ +// Formatting library for C++ - scanning API proof of concept +// +// Copyright (c) 2019 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#include <array> +#include <cassert> +#include <climits> + +#include "fmt/format.h" + +FMT_BEGIN_NAMESPACE +template <typename T, typename Char = char> struct scanner { + // A deleted default constructor indicates a disabled scanner. + scanner() = delete; +}; + +class scan_parse_context { + private: + string_view format_; + + public: + using iterator = string_view::iterator; + + explicit FMT_CONSTEXPR scan_parse_context(string_view format) + : format_(format) {} + + FMT_CONSTEXPR iterator begin() const { return format_.begin(); } + FMT_CONSTEXPR iterator end() const { return format_.end(); } + + void advance_to(iterator it) { + format_.remove_prefix(detail::to_unsigned(it - begin())); + } +}; + +struct scan_context { + private: + string_view input_; + + public: + using iterator = const char*; + + explicit scan_context(string_view input) : input_(input) {} + + iterator begin() const { return input_.data(); } + iterator end() const { return begin() + input_.size(); } + + void advance_to(iterator it) { + input_.remove_prefix(detail::to_unsigned(it - begin())); + } +}; + +namespace detail { +enum class scan_type { + none_type, + int_type, + uint_type, + long_long_type, + ulong_long_type, + string_type, + string_view_type, + custom_type +}; + +struct custom_scan_arg { + void* value; + void (*scan)(void* arg, scan_parse_context& parse_ctx, scan_context& ctx); +}; + +class scan_arg { + public: + scan_type type; + union { + int* int_value; + unsigned* uint_value; + long long* long_long_value; + unsigned long long* ulong_long_value; + std::string* string; + fmt::string_view* string_view; + custom_scan_arg custom; + // TODO: more types + }; + + scan_arg() : type(scan_type::none_type) {} + scan_arg(int& value) : type(scan_type::int_type), int_value(&value) {} + scan_arg(unsigned& value) : type(scan_type::uint_type), uint_value(&value) {} + scan_arg(long long& value) + : type(scan_type::long_long_type), long_long_value(&value) {} + scan_arg(unsigned long long& value) + : type(scan_type::ulong_long_type), ulong_long_value(&value) {} + scan_arg(std::string& value) : type(scan_type::string_type), string(&value) {} + scan_arg(fmt::string_view& value) + : type(scan_type::string_view_type), string_view(&value) {} + template <typename T> scan_arg(T& value) : type(scan_type::custom_type) { + custom.value = &value; + custom.scan = scan_custom_arg<T>; + } + + private: + template <typename T> + static void scan_custom_arg(void* arg, scan_parse_context& parse_ctx, + scan_context& ctx) { + scanner<T> s; + parse_ctx.advance_to(s.parse(parse_ctx)); + ctx.advance_to(s.scan(*static_cast<T*>(arg), ctx)); + } +}; +} // namespace detail + +struct scan_args { + int size; + const detail::scan_arg* data; + + template <size_t N> + scan_args(const std::array<detail::scan_arg, N>& store) + : size(N), data(store.data()) { + static_assert(N < INT_MAX, "too many arguments"); + } +}; + +namespace detail { + +struct scan_handler : error_handler { + private: + scan_parse_context parse_ctx_; + scan_context scan_ctx_; + scan_args args_; + int next_arg_id_; + scan_arg arg_; + + template <typename T = unsigned> T read_uint() { + T value = 0; + auto it = scan_ctx_.begin(), end = scan_ctx_.end(); + while (it != end) { + char c = *it++; + if (c < '0' || c > '9') on_error("invalid input"); + // TODO: check overflow + value = value * 10 + static_cast<unsigned>(c - '0'); + } + scan_ctx_.advance_to(it); + return value; + } + + template <typename T = int> T read_int() { + auto it = scan_ctx_.begin(), end = scan_ctx_.end(); + bool negative = it != end && *it == '-'; + if (negative) ++it; + scan_ctx_.advance_to(it); + const auto value = read_uint<typename std::make_unsigned<T>::type>(); + if (negative) return -static_cast<T>(value); + return static_cast<T>(value); + } + + public: + scan_handler(string_view format, string_view input, scan_args args) + : parse_ctx_(format), scan_ctx_(input), args_(args), next_arg_id_(0) {} + + const char* pos() const { return scan_ctx_.begin(); } + + void on_text(const char* begin, const char* end) { + auto size = to_unsigned(end - begin); + auto it = scan_ctx_.begin(); + if (it + size > scan_ctx_.end() || + !std::equal(begin, end, make_checked(it, size))) { + on_error("invalid input"); + } + scan_ctx_.advance_to(it + size); + } + + int on_arg_id() { return on_arg_id(next_arg_id_++); } + int on_arg_id(int id) { + if (id >= args_.size) on_error("argument index out of range"); + arg_ = args_.data[id]; + return id; + } + int on_arg_id(string_view) { return on_error("invalid format"), 0; } + + void on_replacement_field(int, const char*) { + auto it = scan_ctx_.begin(), end = scan_ctx_.end(); + switch (arg_.type) { + case scan_type::int_type: + *arg_.int_value = read_int(); + break; + case scan_type::uint_type: + *arg_.uint_value = read_uint(); + break; + case scan_type::long_long_type: + *arg_.long_long_value = read_int<long long>(); + break; + case scan_type::ulong_long_type: + *arg_.ulong_long_value = read_uint<unsigned long long>(); + break; + case scan_type::string_type: + while (it != end && *it != ' ') arg_.string->push_back(*it++); + scan_ctx_.advance_to(it); + break; + case scan_type::string_view_type: { + auto s = it; + while (it != end && *it != ' ') ++it; + *arg_.string_view = fmt::string_view(s, to_unsigned(it - s)); + scan_ctx_.advance_to(it); + break; + } + case scan_type::none_type: + case scan_type::custom_type: + assert(false); + } + } + + const char* on_format_specs(int, const char* begin, const char*) { + if (arg_.type != scan_type::custom_type) return begin; + parse_ctx_.advance_to(begin); + arg_.custom.scan(arg_.custom.value, parse_ctx_, scan_ctx_); + return parse_ctx_.begin(); + } +}; +} // namespace detail + +template <typename... Args> +std::array<detail::scan_arg, sizeof...(Args)> make_scan_args(Args&... args) { + return {{args...}}; +} + +string_view::iterator vscan(string_view input, string_view format_str, + scan_args args) { + detail::scan_handler h(format_str, input, args); + detail::parse_format_string<false>(format_str, h); + return input.begin() + (h.pos() - &*input.begin()); +} + +template <typename... Args> +string_view::iterator scan(string_view input, string_view format_str, + Args&... args) { + return vscan(input, format_str, make_scan_args(args...)); +} +FMT_END_NAMESPACE diff --git a/contrib/libs/fmt/test/test-assert.h b/contrib/libs/fmt/test/test-assert.h new file mode 100644 index 0000000000..f9df580539 --- /dev/null +++ b/contrib/libs/fmt/test/test-assert.h @@ -0,0 +1,32 @@ +// Formatting library for C++ - test version of FMT_ASSERT +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#ifndef FMT_TEST_ASSERT_H_ +#define FMT_TEST_ASSERT_H_ + +#include <stdexcept> + +#include <gtest/gtest.h> + +class assertion_failure : public std::logic_error { + public: + explicit assertion_failure(const char* message) : std::logic_error(message) {} + + private: + virtual void avoid_weak_vtable(); +}; + +void assertion_failure::avoid_weak_vtable() {} + +#define FMT_ASSERT(condition, message) \ + if (!(condition)) throw assertion_failure(message); + +// Expects an assertion failure. +#define EXPECT_ASSERT(stmt, message) \ + FMT_TEST_THROW_(stmt, assertion_failure, message, GTEST_NONFATAL_FAILURE_) + +#endif // FMT_TEST_ASSERT_H_ diff --git a/contrib/libs/fmt/test/util.cc b/contrib/libs/fmt/test/util.cc new file mode 100644 index 0000000000..d08dcbdcbf --- /dev/null +++ b/contrib/libs/fmt/test/util.cc @@ -0,0 +1,50 @@ +// Formatting library for C++ - test utilities +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#include "util.h" + +#include <cstring> + +void increment(char* s) { + for (int i = static_cast<int>(std::strlen(s)) - 1; i >= 0; --i) { + if (s[i] != '9') { + ++s[i]; + break; + } + s[i] = '0'; + } +} + +std::string get_system_error(int error_code) { +#if defined(__MINGW32__) || !defined(_WIN32) + return strerror(error_code); +#else + enum { BUFFER_SIZE = 200 }; + char buffer[BUFFER_SIZE]; + if (strerror_s(buffer, BUFFER_SIZE, error_code)) + throw std::exception("strerror_s failed"); + return buffer; +#endif +} + +const char* const FILE_CONTENT = "Don't panic!"; + +fmt::buffered_file open_buffered_file(FILE** fp) { +#if FMT_USE_FCNTL + fmt::file read_end, write_end; + fmt::file::pipe(read_end, write_end); + write_end.write(FILE_CONTENT, std::strlen(FILE_CONTENT)); + write_end.close(); + fmt::buffered_file f = read_end.fdopen("r"); + if (fp) *fp = f.get(); +#else + fmt::buffered_file f("test-file", "w"); + fputs(FILE_CONTENT, f.get()); + if (fp) *fp = f.get(); +#endif + return f; +} diff --git a/contrib/libs/fmt/test/util.h b/contrib/libs/fmt/test/util.h new file mode 100644 index 0000000000..24a5f4e34b --- /dev/null +++ b/contrib/libs/fmt/test/util.h @@ -0,0 +1,84 @@ +// Formatting library for C++ - test utilities +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#include <cstdarg> +#include <cstdio> +#include <string> + +#include "fmt/os.h" + +enum { BUFFER_SIZE = 256 }; + +#ifdef _MSC_VER +# define FMT_VSNPRINTF vsprintf_s +#else +# define FMT_VSNPRINTF vsnprintf +#endif + +template <size_t SIZE> +void safe_sprintf(char (&buffer)[SIZE], const char* format, ...) { + std::va_list args; + va_start(args, format); + FMT_VSNPRINTF(buffer, SIZE, format, args); + va_end(args); +} + +// Increment a number in a string. +void increment(char* s); + +std::string get_system_error(int error_code); + +extern const char* const FILE_CONTENT; + +// Opens a buffered file for reading. +fmt::buffered_file open_buffered_file(FILE** fp = nullptr); + +inline FILE* safe_fopen(const char* filename, const char* mode) { +#if defined(_WIN32) && !defined(__MINGW32__) + // Fix MSVC warning about "unsafe" fopen. + FILE* f = 0; + errno = fopen_s(&f, filename, mode); + return f; +#else + return std::fopen(filename, mode); +#endif +} + +template <typename Char> class BasicTestString { + private: + std::basic_string<Char> value_; + + static const Char EMPTY[]; + + public: + explicit BasicTestString(const Char* value = EMPTY) : value_(value) {} + + const std::basic_string<Char>& value() const { return value_; } +}; + +template <typename Char> const Char BasicTestString<Char>::EMPTY[] = {0}; + +typedef BasicTestString<char> TestString; +typedef BasicTestString<wchar_t> TestWString; + +template <typename Char> +std::basic_ostream<Char>& operator<<(std::basic_ostream<Char>& os, + const BasicTestString<Char>& s) { + os << s.value(); + return os; +} + +class Date { + int year_, month_, day_; + + public: + Date(int year, int month, int day) : year_(year), month_(month), day_(day) {} + + int year() const { return year_; } + int month() const { return month_; } + int day() const { return day_; } +}; diff --git a/contrib/libs/fmt/test/ya.make b/contrib/libs/fmt/test/ya.make new file mode 100644 index 0000000000..8db82d6c1e --- /dev/null +++ b/contrib/libs/fmt/test/ya.make @@ -0,0 +1,55 @@ +# Generated by devtools/yamaker. + +LIBRARY() + +WITHOUT_LICENSE_TEXTS() + +OWNER( + orivej + g:cpp-contrib +) + +LICENSE(MIT) + +PEERDIR( + contrib/libs/fmt + contrib/restricted/googletest/googlemock +) + +NO_COMPILER_WARNINGS() + +NO_UTIL() + +CFLAGS( + -DFMT_LOCALE + -DFMT_SHARED + -DGTEST_HAS_STD_WSTRING=1 + -DGTEST_LANG_CXX11=0 + -D_SILENCE_TR1_NAMESPACE_DEPRECATION_WARNING=1 +) + +SRCS( + gtest-extra.cc + util.cc +) + +END() + +RECURSE( + assert-test + chrono-test + color-test + compile-test + core-test + format-impl-test + format-test + gtest-extra-test + header-only-test + locale-test + os-test + ostream-test + posix-mock-test + printf-test + ranges-test + scan-test +) diff --git a/contrib/libs/fmt/ya.make b/contrib/libs/fmt/ya.make new file mode 100644 index 0000000000..6222739350 --- /dev/null +++ b/contrib/libs/fmt/ya.make @@ -0,0 +1,44 @@ +# Generated by devtools/yamaker from nixpkgs 980c4c3c2f664ccc5002f7fd6e08059cf1f00e75. + +LIBRARY() + +OWNER( + orivej + g:cpp-contrib +) + +VERSION(7.1.3) + +ORIGINAL_SOURCE(https://github.com/fmtlib/fmt/archive/7.1.3.tar.gz) + +LICENSE( + Apache-2.0 WITH LLVM-exception AND + MIT AND + Public-Domain AND + Python-2.0 +) + +LICENSE_TEXTS(.yandex_meta/licenses.list.txt) + +ADDINCL( + GLOBAL contrib/libs/fmt/include +) + +NO_COMPILER_WARNINGS() + +NO_UTIL() + +CFLAGS( + GLOBAL -DFMT_EXPORT +) + +SRCS( + src/format.cc + src/os.cc +) + +END() + +RECURSE( + test +) |