ydb/contrib/libs/cxxsupp/libcxx/include/execution, branch main

Update libcxx to 19 Apr 2025

2026-03-04T04:44:17Z

``` [libc++] Backport segmented iterator optimization for std::for_each to C++11 (#134960) [libc++] Properly decay functions in CTAD for `pair` (#134544) [libc++] Replace __libcpp_{ctz, clz} with __builtin_{ctzg, clzg} (#133920) [libc++] Make __config_site modular (#134699) [libc++] Simplify the generic implementation of is_{un}signed (#136095) [libc++] Extend the scope of radix sorting inside std::stable_sort to floating-point types (#129452) [libc++] Implement P2897R7 aligned_accessor: An mdspan accessor expressing pointer over-alignment (#122603) [libc++] Removes the _LIBCPP_VERBOSE_ABORT_NOT_NOEXCEPT macro. (#135494) [libc++] Replace __libcpp_popcount by __builtin_popcountg (#133937) [libc++] Use __underlying_type directly in underyling_type_t (#135423) [libc++][test] Test `nasty_string` in C++20 (#135338) [libc++][doc] Updates the release notes. [libc++] Adds is_implemented function for new ftm generator. (#134538) [libc++] A quick-fix for the Apple CI. (#135202) libcxx: In gdb test detect execute_mi with feature check instead of version check. [AMDGPU] Fix code object version not being set to 'none' (#135036) [libc++][doc] Removes LLVM 19 Release Notes. (#134894) [libc++] Remove _LIBCPP_TEMPLATE_VIS (#134885) [libc++][C++03] Remove headers which don't provide anything (#134044) [libc++] P3247R2: Deprecate `is_trivial(_v)` (#130573) [libc++] Fix misplaced _LIBCPP_POP_MACROS (#134874) [libc++] Remove _LIBCPP_METHOD_TEMPLATE_IMPLICIT_INSTANTIATION_VIS (#111964) [libc++] Use __add_pointer and __remove_pointer builtins when they are fixed (#134147) [libc++] Fix a comment typo in __tree (#134831) [clang] fix diagnostic printing of expressions ignoring LangOpts (#134693) [libc++] Improve diagnostic when violating `std::atomic` trivially copyable mandates (#131754) [libc++] Clang-tidy operator& hijacker. (#128366) [libc++][ci] Removes C++2b selection option. (#88557) [libc++] Implement `std::flat_multiset` (#128363) [libc++] Bump OS version for macOS backdeployment CI jobs (#131883) [libc++] Implement ranges::iota (#68494) [libc++] Fix deployment targets that were incorrectly bumped (#134278) [libc++] Guard additional headers with _LIBCPP_HAS_LOCALIZATION (#131921) [libc++] Add missing release note for LLVM 20 about zip_view (#134144) [libc++][type_traits] `reference_{constructs|converts}_from_temporary` with `-Winvalid-specialization` tests (#133946) [libc++] Add visibility annotations to the std namespace with GCC (#133233) [libc++] Fix ambiguous call to std::max in vector (#119801) [clang] improved preservation of template keyword (#133610) [libc++] Switch a few attribute to use the C++11 syntax (#133293) [libc++] fix `flat_set`'s transparent `insert` (#133402) [libc++] Unify __can_reference and __is_referenceable_v (#133278) [libc++] Remove friend declarations from __tree (#133237) [libcxx] Remove clang-18 workaround in picolib build (#133254) [Clang][AMDGPU] Remove special handling for COV4 libraries (#132870) [libc++] Simplify the implementation of the pointer aliases in allocator_traits (#127079) [libc++] Remove official Clang 18 support. (#130142) [libc++] Refactor ranges::{min, max, min_element, max_element} to use std::__min_element (#132418) [libc++] Instantiate hash function externally (#127040) [libc++] Introduce unversioned namespace macros (#133009) [libc++][ranges] Adjust inheritance detection for `enable_view` (#132582) [libc++] Verify std::forward_like's mandates clause. (#127318) [libcxx] [test] Fix restoring LLVM_DIR and Clang_DIR (#132838) [libc++] Add GitHub usernames for Linaro managed bots (#133120) [libc++] Remove unnecessary division and modulo operations in bitset (#121312) [libc++] Use __detected_or_t to implement __has_iterator_{category,concept}_convertible_to (#124456) [libc++] Update the status for LWG3120 (#116772) [libc++] Re-implement LWG2770 again * 2 (#132598) [libc++] Make sure that __desugars_to isn't tripped up by reference_wrapper, const and ref qualifiers (#132092) [libc++] Rename __construct_one_at_end to __emplace_back_assume_capacity (#132276) [libcxx] Put `std::monostate` in `` (#128373) [libc++] Always build the dylib with hidden visibility (#131313) [libc++] Ensure that we vectorize algorithms on all Clang-based compilers (#132090) [libc++] Documentation for _LIBCPP_REMOVE_TRANSITIVE_INCLUDES (#130560) [libc++] Add __assertion_handler to the modulemap (#131031) [libc++] Add benchmarks for partitioning algorithms (#127324) [libc++] Simplify the implementation of __is_referenceable (#130043) [libc++] Remove one of the std::signbit overloads (#130505) [libc++] Add [[gnu::nodebug]] on type traits (#128502) [libc++] implement std::flat_set (#125241) [libc++][test] Small fixes for time tests (#132532) [libc++][CI] Adds GCC trunk image. (#132271) [libc++][chrono] Adds a missing main include. (#132100) [libc++][test] Guard uses of `_LIBCPP_HAS_THREADS` in FTM tests (#132258) [libc++] Bump `__cpp_lib_constexpr_algorithms` for P2562R1 in C++26 (#132075) [libc++] Add coverage for C++17 and Clang Modules with LSV (#131815) [libc++] Improve test coverage for copy/move ctors for vector (#120132) [libc++][test] Fix issues found by MSVC's STL (#131787) [libc++][docs] Minor update to the benchmark documentation [libc++] Implement part of P2562R1: constexpr `ranges::inplace_merge` (#131947) [libc++][CI] Use latest Docker image. (#130497) [libc++] Verify forward_list self-merging is a no-op (#129985) [libc++] Use __alloc_traits in whenever it is available for consistency (#126595) [libc++] Validate vector copy/move-assignment operators in realistic scenarios (#119817) [libc++] Fix copy_backward for vector with small storage types (#131560) [libc++] Fix {std, ranges}::copy for vector with small storage types (#131545) [libc++] Fix {std, ranges}::equal for vector with small storage types (#130394) [libc++] Fix ambiguous call in {ranges, std}::count (#122529) [libc++] Refactor and add benchmarks from [alg.nonmodifying] (#128206) [libc++] Implement part of P2562R1: constexpr `std::inplace_merge` (#129008) ``` commit_hash:73ae0722f4f8aea0ed05ca4c13ded3717eb1c584

Update libcxx to 16 Feb 2025

2026-02-15T17:38:19Z

``` [libc++] Fix initialization-order-fiasco with iostream.cpp constructors (#126995) [libc++] Fixes (|multi)_set spaceship operator. (#127326) [libc++] Move unused basic_string function definition to the dylib sources (#126219) [libc++] Avoid including on arbitrary platforms (#125587) [libc++][format] Disables the FTM on older MacOS versions. (#126547) [libcxx] Add a missing include for __enable_if_t (#127016) [libcxx] Add a missing include for __bit_iterator (#127015) [libc++] Remove conditional for attributes that are always available (#126879) [libc++] Remove obsolete guards for join_view being experimental (#126697) [libc++] Extract destroy algorithms into separate headers (#126449) [libc++][chrono] implements TAI clock. (#125550) [libc++] Remove basic_string::__clear_and_shrink (#126050) [libc++] Support constexpr for std::stable_sort in radix sort branch (#125284) [libc++] Replace __is_trivially_relocatable by is_trivially_copyable (#124970) [lib++][Format] Updates Unicode database. (#125712) [libc++] Fix UB in bitwise logic of {std, ranges}::{fill, fill_n} algorithms (#122410) [libc++] Also provide an alignment assumption for vector in C++03 mode (#124839) [libc++] Fix stray usage of _LIBCPP_HAS_NO_WIDE_CHARACTERS on Windows [libc++][TZDB] Fixes %z escaping. (#125399) [libc++] Decrease instantiation cost of __constexpr_memmove (#125109) [libc++] Implement N4258(Cleaning-up noexcept in the Library) (#120312) [libc++] Optimize ranges::copy_backward for vector::iterator (#121026) [libc++] Optimize ranges::copy{, _n} for vector::iterator (#121013) [libc++] Refactor num_get optimization to not be ABI breaking (#121690) [libc++] Simplify the implementation of iostream.cpp (#124103) [libc++] Simplify vector::__construct_at_end (#119632) [libc++] Remove some private symbols from the ABI (#121497) [libcxx] Use _ftelli64/_fseeki64 on Windows (#123128) [libc++] Disable CFI in __libcpp_allocate (#124805) [libc++] Remove Android header no longer in use (#124691) [libc++] Add more missing bits to the locale base API (#122531) [libc++] implement std::flat_multimap (#113835) [libc++][format][3/3] Improves formatting performance. (#108990) [libc++] Reduce std::conjunction overhead (#124259) [libc++][chrono] implements UTC clock. (#90393) [libc++] Switch experimental library macros to 0/1 macros (#124030) [libc++] Use [[clang::no_specializations]] to diagnose invalid user specializations (#118167) [libc++] Inline basic_streambuf functions (#123379) [libc++] Remove a few unused includes (#124025) [libc++] Remove support for Android 4 and older (#124062) [libc++] Avoid unnecessary instantiations for __copy_cvref_t (#123718) [libc++] Fix input-only range handling for vector (#116157) [libc++] Fix input-only range handling for basic_string (#116890) [libc++] Fix no-op shrink_to_fit for vector (#120495) [libc++] Another _LIBCPP_NODEBUG fix [libc++] Add missing _LIBCPP_NODEBUG on internal alias [libc++] Define an internal API for std::invoke and friends (#116637) [libc++] Fix vector sanitization annotations on destruction (#121031) [libc++] remove yield from atomic::wait (#120012) [libc++] Don't implement before C++23 (#123130) [libc++] Enable _LIBCPP_NODEBUG again (#123318) [libc++] Simplify when the sized global deallocations overloads are available (#114667) ``` commit_hash:c4dee431e33408d110c123c1ea677d3897276e0e

Update libcxx to 14 Jan 2025

2026-02-11T07:25:30Z

``` [libc++] Remove unused _LIBCPP_HAS_NO_TREE_BARRIER macro and associated dead code (#122769) [libc++] Optimize input_iterator-pair `insert` for std::vector (#113768) [libc++] Fix ambiguity due to non-uglified member typedefs (#121664) [libc++] Fix `tuple_cat` for element with unconstrained constructor (#122433) [libc++] Make std::stable_sort constexpr friendly (#110320) [libc++] Stop copying headers to the build directory (#115380) [libc++][test] Add exception tests for vector capacity operations (#118141) [libcxx] Don't hold the lock when calling notify_* on gates in std::shared_mutex (#107876) [libc++] Redefine Fuchsia locale base support on top of the new API (#122489) [libc++] Deprecate extension `packaged_task::result_type` (#122600) [libc++] Pass type information down to __libcpp_allocate (#118837) [libc++] Replace stable_sort with sort in flat_map (#121431) [libc++] Improve diagnostic when failing to parse the tzdb (#122125) [libc++] Fix bug in tests for std::atomic_ref increment and decrement operators (#122271) [libc++] Add missing iswctype_l in posix_l_fallbacks (#122484) [libc++] Implement a libc++ private version of isascii (#122361) [libc++] Implement std::not_fn (#86133) [libc++] Remove duplicated _LIBCPP_HIDE_FROM_ABI from a few declarations (#122323) [libc++] Remove obsolete bsd_locale_defaults.h (#122276) [libc++][chrono] Entirely remove relational operators for `std::chrono::weekday` (#122428) [libc++] Disable _LIBCPP_NODEBUG temporarily (#122393) [libc++] Add missing _LIBCPP_NODEBUG on internal aliases [libcxx][algorithm] Optimize std::stable_sort via radix sort algorithm (#104683) [libc++] Fix mi-mode in GDB pretty printers (#120951) [libc++] Fix test for vector data_const.pass.cpp (#122085) [libc++] Add __iswctype to the locale base API since it's required by (#122168) [libc++] Fix erroneous internal capacity evaluation in vector (#120577) [libc++] Uglify non-standard member typedef const_reference in bitset (#121620) [libcxx] Handle windows system error code mapping in std::error_code. (#93101) [libc++] Add _LIBCPP_NODEBUG to __unwrap_ref_decay_t [libc++] Put _LIBCPP_NODEBUG on all internal aliases (#118710) [libc++] Add missing hardening checks and tests for vector (#121366) [libc++] Fix documentation for setting hardening ABI macros (#121946) [libcxx] Use alias for detecting overriden function (#120805) [libc++] Mark vector::at() as constexpr to conform to C++20 standard (#121848) [libcxx] Fix build for glibc < 2.27 (#121893) [libc++] Add new utilities to compare benchmark results between builds (#120743) [libc++] Improve coverage of std::atomic_ref::exchange() (#121596) [libc++] Fix largefile handling in fs::copy_file (#121855) [libc++][hardening] Add checks to `forward_list` element access. (#120858) [libc++] Use copy_file_range for fs::copy (#109211) [libc++] Fix the batch size used in the std::gcd benchmark (#120618) [libc++] Simplify unwrap_ref_decay a bit (#121623) [libc++] Remove abandoned __append declaration in vector (#121673) [libc++] Run clang-tidy only once per header (#121436) [libc++] Make __type_list variadic (#121117) [libc++][hardening] Add a bounds check for `valarray` and `bitset`. (#120685) [libc++] Avoid including shared_ptr.h in basic_ostream.h (#121049) [libcxx] Fix the #endif comments (#120949) [libcxx] Remove the second inclusion of the system header (#120946) [libc++] Refactor some code in monotonic_buffer_resource (#117271) [libc++] Mark num_get.bench.cpp as unsupported in C++03 [libc++] Mark P0270R3 as Nothing To Do [libc++] Mark N4089 as complete [libc++] Mark P0175R1 as 'Nothing To Do' [libc++] Don't declare pmr::polymorphic_allocator before C++17 (#120850) [libc++] Switch _LIBCPP_NODEBUG to [[gnu::nodebug]] (#120720) [libc++][C++03] Use `__cxx03/` headers in C++03 mode (#109002) [libc++] Remove allocation.bench.cpp (#120767) [libc++] Remove the need for `uselocale()` (#120158) [libc++] Simplify vector::flip() and add new tests (#119607) [libc++] Remove some unused includes (#120219) [libcxx] Support for using timespec_get (#117362) [libcxx] Use alias for detecting overriden function (#114961) [libc++] Remove explicit mentions of __need_FOO macros (#119025) [libc++] Granularize includes (#119964) [libc++] Refactor the Windows and MinGW implementation of the locale base API (#115752) [libc++] Disable deprecation warnings in derived_from_integral_constant.compile.pass.cpp [libc++] Add a test to make sure all the type traits derived from bool_constant [libc++] Introduce __forward_as (#118168) ``` commit_hash:d2b931c7b22a91f74792c7f91c3485782b7419c5

Update libcxx to 13 Dec 2024

2026-02-05T07:59:29Z

``` [libc++] Granularize the header (#119270) [libc++] Fix improper static_cast in std::deque and __split_buffer (#119106) [libc++] Properly guard flat_map includes based on C++ version (#119227) [libc++] Fix test FTM header guard [libc++][C++03] Add #if 0 to the experimental/ and ext/ headers as well (#119541) [libc++][test] Fix invalid const conversion in limited_allocator (#118189) [libc++] Add #if 0 block to all the top-level headers (#119234) [libcxx][test] Silence nodiscard warnings for `std::expected` (#119174) [libc++] Add missing assertion in std::span constructor (#118396) [libc++][C++03] Update include guards (#109001) [libc++] Move out `flat_map::iterator` (for reusing it in flat_multimap) (#117445) [libc++] Extract a clean base support API for std::atomic (#118129) [libc++] Add _LIBCPP_NODEBUG on internal allocator trait aliases (#118835) [libc++] Fix sub-overflow in std::gcd implementation (#117984) [libc++] Fix unintended ABI break in associative containers with reference comparators (#118685) [libc++][test] Refactor increasing_allocator (#115671) [libc++] Drop dependency on __functional/operations.h from (#117302) [libc++] Add Wroclaw straw polls (#118116) [libc++] Fix malformed CSV entry for C++26 LWG issue [libc++] Simplify the implementation of reserve() and shrink_to_fit() (#113453) [libc++] Add coding guidelines to the docs (#117051) [libc++] Use the __strtoNUM functions from __locale instead of the old API (#118029) Optimize vector::assign for InputIterator-only pair inputs (#113852) [libc++] Remove the pointer safety functions from the dylib (#117390) [libc++] Add exception guard for vector::__init_with_sentinel (#115491) [libc++] Refactor atomic_wait using lambdas (#115746) [libc++] Add __detected_or_t and use it to implement some of the allocator traits aliases (#115654) [libc++] Fix capacity increase issue with `shrink_to_fit` for `__split_buffer` (#117720) [libc++] Refactor vector move constructor with allocator (#116449) [libc++] Remove _LIBCPP_DISABLE_AVAILABILITY macro (#112952) [libc++] Granularize includes (#117068) [libc++] Rename operator[].pass.cpp to subscript_operator.pass.cpp (#117216) [libc++] Include headers in conditionally (#116539) [libc++] Make __atomic_base into an implementation detail of std::atomic (#115764) [libc++] Avoid including all of in (#116541) [libc++] Remove transitive includes from empty headers (#116295) [libc++] Remove unnecessary std::vector accessors (#114423) [libc++] Guard `__pad_and_output` with `_LIBCPP_HAS_LOCALIZATION` (#116580) [libc++] Remove some unnecessary boilerplate in <__chrono/duration.h> (#116238) [libc++] Fix a few problems found by clang-tidy [libc++] Avoid including in (#116254) [libc++] Address post-commit comments for __scope_guard (#116291) [libc++] Remove and includes from (#116223) [libc++] Avoid including in and (#116014) [libc++] Fix CI issues recently introduced by localization changes (#116216) [libc++] Make __throw_ member functions static (#116233) [libc++] Add forgotten call to std::__to_address in __uninitialized_allocator_relocate [libc++] Remove obsolete accessors in std::list and std::forward_list (#115748) [libc++] Accept iterators instead of raw pointers in __uninitialized_allocator_relocate (#114552) [libc++] Split __shared_count out of <__memory/shared_ptr.h> (#115943) [libc++] Make variables in templates inline (#115785) Unify naming of internal pointer members in std::vector and std::__split_buffer (#115517) [libc++] Remove _AlgPolicy from std::copy and algorithms using std::copy (#115887) [libc++] Remove a few unused includes from <__algorithm/find_end.h> ``` commit_hash:ca6104a6ab073cf81026add20631d7ec3078105f

Update libcxx to 2 Apr 2024 239236b8c2154aa49e98bc7ed774a7d2712edf50

2025-02-01T11:33:00Z

``` [libc++] Remove pair dependency (#85621) [libc++] Simplify the implementation of (#86843) Update the "Current Status" section of the website to be current. (#84507) [libc++] Optimize the two range overload of mismatch (#86853) [libc++] Refactor __tuple_like and __pair_like (#85206) [libc++][test] Improves src include paths. (#86864) [libc++] Document guidelines for applying [[nodiscard]] (#84000) [libc++] Optimize the std::mismatch tail (#83440) [libc++] Remove and includes from (#85520) [libc++] Switch FreeBSD to C++26 (#86658) [libc++] Fix one case in saturate_cast.pass.cpp for 64-bit on z/OS (#86724) [libc++][test] Remove tests that testing std::variant (#84222) [libc++] Reduce types for template parameter U in tests (#83781) [libc++] Switch FreeBSD CI job to Clang 17 (#86320) [libc++][CI] Updates the documentation. (#85264) [libc++][format] Adds ABI tags to inline constexpr variables. (#86293) [libc++][test] Fix race condition in condition_variable_any tests (#84788) [libc++] Vectorize mismatch (#73255) [libc++] Don't push and pop extensions diagnostics when using clang modules (#85917) [libc++][ranges] use `static operator()` for C++23 ranges (#86052) [libc++] Implement LWG3528 (`make_from_tuple` can perform (the equivalent of) a C-style cast) (#85263) [libc++] Remove macros for keeping std::allocator members and void specialization after C++20 (#85806) [libc++] Deprecates std::errc constants. (#80542) [libcxx] [cmake] Fix cmake_path(ABSOLUTE_PATH) for empty CMAKE_INSTALL_PREFIX [libc++][CI] Reenables the module tests. (#85799) [libc++][ranges] remove `__workaround_52970` (#85683) [libc++][ranges] LWG3715: `view_interface::empty` is overconstrained (#85004) [libcxx] [modules] Fix relative paths with absolute LIBCXX_INSTALL_MODULES_DIR (#85756) [libc++][format] Fixes nested concept evaluation. (#85548) [libc++][CMake] Removes LIBCXX_ENABLE_CLANG_TIDY. (#85262) [libc++] Remove __unconstrained_reverse_iterator (#85582) [libc++] Simplify the implementation of remove_reference (#85207) [libcxx][test] Create feature host-can-create-symlinks (#82204) [libc++] Use __is_scoped_enum for the implementation of is_scoped_enum if it's available (#85580) [libc++] Add missing hide-from-ABI annotations on virtual functions (#85439) [libc++] Optimize ranges::fill{,_n} for vector::iterator (#84642) [libc++] Add include in (#85521) [libc++] Remove includes from (#85478) [libc++] P2602R2 Poison Pills are Too Toxic (#74534) [libc++] Fixes run-buildbot-container. (#84644) [libc++] Add [[nodiscard]] to static numeric limit functions (#83748) Rework Modules CMake to be (more) idiomatic. (#84936) [libc++] Enables TZDB tests. (#82108) [libc++] Remove a few includes from <__functional/hash.h> (#83254) [libc++] Implements filebuf unbuffered. (#76629) [libc++][CI] Updates the version number of the latest release. [libc++] Remove include from <__format/concepts.h> (#80214) [runtimes] Prefer -fvisibility-global-new-delete=force-hidden (#84917) [libc++] Fix tests on musl (#85085) [libc++] Remove _LIBCPP_ENABLE_NARROWING_CONVERSIONS_IN_VARIANT (#83928) [libcxx] Fix incorrect type in the has-1024-bit-atomics feature test (#84904) [libc++] Improves UB handling in ios_base destructor. (#76525) [libc++][CI] Installs tzdata package in Docker. (#84643) [libc++][TZDB] Fixes parsing interleaved rules. (#84808) [libc++][hardening] Check bounds on arithmetic in __bounded_iter (#78876) [libc++][hardening] Add iterator validity checks on unordered containers (#80230) [libc++][hardening] Reclassify string_view(ptr, len)'s size assertion (#79297) [libc++] Re-enable the clang_modules_include test for Objective-C++ (#66801) [libc++] Remove XFAIL for SIMD in optimized build (#84767) [libcxx] Update 128-bit-atomics feature test (#83841) [libc++] Only forward-declare ABI-functions in exception_ptr.h if they are meant to be used (#84707) [libc++][test] Don't include `test_format_context.h` in `parse.pass.cpp` (#83734) [libc++] Add missing include in test (#84579) [libc++] Remove from (#83183) [RFC][libc++] Reworks clang-tidy selection. (#81362) [libc++] Remove include from (#83742) [libc++][format] Updates LWG3462 status. (#80550) [libc++][format] Update LWG3701 status. (#80545) [libc++][test] Fix MSVC warning C4127 in `array.cons/initialization.pass.cpp` (#79793) [libc++] Simplify the std::pair constructor overload set (#81448) [libc++] Allow the use of extensions in the implementation (#79532) [libc++] Don't build against libcxxrt by default on FreeBSD (#84484) Actually disable the module generation tests. [libc++] Disable module_std and module_std_compat tests [libc++] Enable availability based on the compiler instead of __has_extension (#84065) [libc++] Fixes time formatter test output for Linux on PowerPC (#75526) [libc++] Remove unused includes from __type_traits/is_convertible.h (#83747) ``` commit_hash:171258d93ab92f516dfb1789300677a164e63219

Update libcxx to 5 Mar 2024 80f9458cf30d13eef21b09042ea590945c5e64db

2025-01-19T22:51:09Z

commit_hash:c45aa2ed98c2a01fa86b69bac97f40a32bd68ae2

Update libcxx to llvmorg-17.0.6

2024-02-21T20:33:25Z

Update libcxx to llvmorg-17.0.6 c871ef572c71b4fef22d4a9e65bcebc57e625aea

fix ya.make

2022-07-07T11:41:37Z

Update libc++ to 24c12bfb (5 Feb 2022).

2022-06-09T13:12:17Z

Notable changes: * make _LIBCPP_ABI_UNSTABLE set _LIBCPP_ABI_VERSION * replace include utility with specific includes in __utility folder * disallow ranges:begin for array of incomplete types * move fpos to separate header * delete optional usage of type builtins that were never implemented * define ranges::views namespace in its own header * remove base class of the vector ref:1d141d911ba017f306cca431c3b56c25d495e54e

intermediate changes

2022-04-03T10:57:21Z

ref:8fcd56b3fe762902848ae3f9eabb01e1aa97432c