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

Update libcxx to 20 June 2025

2026-03-19T03:08:53Z

commit_hash:a70bc4475f605923ff712284d85f5bb6b1912759

Update libcxx to 28 May 2025

2026-03-10T19:02:54Z

``` [libc++] Fix build failure with libdispatch backend (#141606) [libcxx][docs] Fix bullet point in Additional Tools section [libcxx] [test] Change an MSVC mode XFAIL into UNSUPPORTED (#141609) [libc++] Fix directory name in libcxx rand.dist tests path (#140160) [libc++] Bump the docker image hash (#140517) [libcxx] [test] Extend mingw target checks to cover the arm64ec architecture too (#141227) [libc++] Optimize bitset::to_string (#128832) [libc++] Optimize std::for_each_n for segmented iterators (#135468) [libc++] Make ABI annotations explicit for windows-specific code (#140507) [libc++] Add explicit ABI annotations to functions from the block runtime declared in <__functional/function.h> (#140592) [libc++] Optimize std::getline (#121346) [libc++] Bump GCC_HEAD_VERSION to 16 [libc++] Implements the new FTM header test generator. (#134542) [libc++] Introduce ABI sensitive areas to avoid requiring _LIBCPP_HIDE_FROM_ABI everywhere (#131156) [libc++] Fix set::operator= when instantiating with a std::pair (#140385) [libc++] Don't instantiate allocators in __tree on an incomplete type (#140225) [libc++] Fix flat_{multi}set insert_range (#137462) [libc++] Reject abilist if it contains an ABI tag (#139030) [libcxx] applies #134819 to `insert_or_assign` with `const key_type&` (#140124) [libc++] Fix typos in documentation (#139853) [libc++] Add basic constant folding for std::format (#107197) [libc++] run clang-tidy on src/ in the CI (#121198) [libc++] Avoid type-punning between __value_type and pair (#134819) [libc++] Refactor and add benchmark coverage for [alg.sort] (#128236) [libc++] Improve test coverage and readability for swap_ranges (#133752) [libc++] Enable the GDB pretty printers for Clang (#135484) [libc++][C++03] Remove macros that expand to nothing (#134046) [libc++] Remove the constexpr `hash>` extension (#132617) [libcxx] Fix a comment link for the unicode NBSP char. NFC. (#139692) [libc++] Work around new GCC 15 type_traits builtins that can't be used as Clang's can (#137871) [libc++][format] Discard contents since null-terminator in character arrays in formatting (#116571) [libc++] Simplify the implementation of std::get for pairs (#114984) [libc++] Fix missing #includes (#130536) [libc++] Improve test coverage for containers' scary.pass.cpp (#131550) [libc++] Documentation polish (#132962) [cmake] Normalize TARGET_SUBDIR paths (#138524) [libc++] Fix use of std::errc() for C++ < 11 (#138522) [libc++] Fix disabling of extension warnings in C++20 and later (#134989) [libc++] Use __is_address_in_range in vector (#139032) [libc++] Simplify __promote (#136101) [libc++] Add test for flat_set::insert not creating temporaries (#138387) [libc++] Add the __is_replaceable type trait (#132408) [www][docs] Remove last mentions of IRC (#139076) [libc++][Android] Disable fdsan in filebuf close.pass.cpp (#102412) [libc++] Implement P3379R0 Constrain `std::expected` equality operators (#135759) [libc++][docs] Confirm that P3136R1 Retiring niebloids is Complete (#135932) [libc++] Reword release note section about future releases (#138544) [libc++] Reword std::advance assertion message for consistency with ranges::advance (#138749) [libc++] Remove a few unnecessary branches from basic_string::find (#137266) [libc++] Add _LIBCPP_NO_UNIQUE_ADDRESS to flat_{,multi}map::value_compare (#137594) [libc++][test] Test `flat_meow` with proper underlying iterators (#131290) [libcxx][CMake] Use the right variable in the C library error message (#138458) [libc++] Remove redundant and somewhat confusing assertions around advance() (#133276) [libc++] Improve the test coverage for std::vector::emplace (#132440) [libc++] Enable sized deallocation when building operator new shims on Apple (#134152) [libc++][C++03] Remove code that is not used in C++03 (#134045) [libc++] Re-introduce _LIBCPP_DISABLE_AVAILABILITY (#134158) [libc++][CI] Use latest Docker image. (#132539) [libc++] Remove a few unused includes from <__bit/*> (#137934) [libc++] Simplify the implementation of is_unbounded_array a bit (#137716) [libc++][pair] P2944R3: Constrain `std::pair`'s equality operator (#136672) [libc++] Remove dead implementation of is_nothrow_convertible and merge the remaining code into is_convertible.h (#137717) [libc++][CI] Improves updating Docker image. (#134497) [libc++] Make bad_function_call::what() existence a matter of availability instead of ABI (#127697) [libc++] Use __array_rank in Clang versions without any known bugs (#136103) [libcxx] [test] Clarify the condition for long double hex formatting (#135334) Optimize std::__tree::__assign_multi to insert the provided range at the end of the tree every time (#131030) [libc++][ranges] Reject non-class types in ranges::to (#135802) [libcxx] [test] Extend mingw workarounds for armv7/aarch64 too (#136419) ``` commit_hash:b16e76e79ed376b0ab4773b99425f924e6525432

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 18 Mar 2025

2026-02-19T07:10:24Z

``` [libc++] Improve deprecated diagnostic guards. [libc++] Guard call_once against operator hijacking. (#128054) [libc++] Remove redundant assignments in bitset string-like constructors (#121424) [libc++] Fix allocate_at_least test that assumes the size_type of the allocator (#131682) [libc++] Fix check for _LIBCPP_HAS_NO_WIDE_CHARACTERS in features.py (#131675) [libc++] Add remaining benchmarks from [alg.modifying.operations] (#127354) [libc++][test] Adds a test for a reserved name. (#131363) [libc++][test] Skip a `is_virtual_base_of` test for apple-clang-17 (#131438) [libc++][test] Skip some `is_implicit_lifetime` tests for apple-clang-17 (#131302) [libc++] Fix ambiguous call in {ranges, std}::find (#122641) [libc++] Optimize ranges::rotate for vector::iterator (#121168) [regex] fix uncaught exception when string is like "\\_" (#129348) [libc++] Add `-Watomic-memory-ordering` diagnostic tests for `atomic_ref` (#130206) [libc++][docs] Remove mis-added entry for P2513R4 (#130581) [libc++][CI] Update action runner base image. (#130433) [libc++] Protect more code against -Wdeprecated. (#130419) [libc++][type_traits] Implements "A type trait to detect reference binding to temporary" (#128649) [libc++] Deprecate `is_pod(_v)` since C++20 (#129471) [libc++] Implement part of P2562R1: constexpr `ranges::stable_sort` (#128860) [libc++] Remove identity casts in <{forward_,}list> (#130049) [libc++] Remove a few unused includes from <__concepts/*> (#129883) [libc++] Verify that LWG4140 is implemented (#128624) [libc++] Implement part of P2562R1: constexpr `ranges::stable_partition` (#129839) [libcxx] Export directory_iterator in module build (#129195) [libc++] Optimize num_put integral functions (#120859) [libc++] Add missed `constexpr` to `erase(_if)` in `` (#129666) [libc++] Optimize ranges::swap_ranges for vector::iterator (#121150) [libc++] Remove a few unused includes in headers (#129674) [libc++] Implement part of P2562R1: constexpr `std::stable_partition` (#128868) [libc++] Fix assignment in insertion into `vector` (#116001) [libc++][test] extend XFAIL clauses to cover Amazon Linux too (#129377) [libc++] Fix `money_get::do_get` with huge input (#126273) [libc++][chrono][doc] Use stable names in synopsis. (#129381) [libc++][format] Enables formattable tests for chrono formatters. (#128356) [libc++] Implement LWG3990 for Clang (#128834) [libc++][test] XFAIL for FreeBSD in thread_create_failure.pass.cpp (#129413) [libc++] Add tests for gcd that result in something other than zero or one (#129395) [libc++] Prohibits initializer_list specializations. (#128042) [libc++] Implements LWG3600 Making istream_iterator copy constructor trivial is an ABI break (#127343) [libcxx] Provide locale conversions to tests through lit substitution (#105651) [libc++] Guard contents on _LIBCPP_HAS_LOCALIZATION (#129112) [libc++] Mark _XOPEN_SOURCE test as unsupported on FreeBSD (#128950) [libc++] Enable algorithm vectorization on arm neon (#128873) [libc++][test] extend -linux-gnu XFAIL to cover all of the -linux targets (#129140) [libc++] Fix the locale base API on Linux with musl (#128936) [libc++] Diagnose when nullptrs are passed to string APIs (#122790) [libc++] Silence CMake's install messages in the CI (#128872) [libcxx] Add LWG4135: The helper lambda of std::erase for list should specify return type as bool (#128358) [libc++] Optimize ranges::equal for vector::iterator (#121084) [libc++][test] Refactor tests for rotate and rotate_copy (#126458) [libc++][format] Disables narrow string to wide string formatters. (#128355) [lib++][print] Don't pad the ostream output. (#128354) [libc++] Updates ostream's println LWG status. (#128214) [libc++][test] Refactor tests for ranges::swap_range algorithms (#121138) [libc++][test] Augment ranges::{fill, fill_n, find} with missing tests (#121209) Simplify flip() for std::bitset (#120807) Exclude hwasan from thread_create_failure.pass.cpp (#128768) [libc++] Make .verify.cpp tests more robust against changing headers (#128703) [libc++] Don't try to wait on a thread that hasn't started in std::async (#125433) [libc++] Use the new locale base API on Linux (#128007) [libc++] Synchronize Docker container SHA in run-buildbot-container (#128225) [libc++] Fix basic_string not allowing max_size() elements to be stored (#125423) [libc++] Fix shrink_to_fit to swap buffer only when capacity is strictly smaller (#127321) [libcxx] Enable localization for the GPU in the config files (#128224) [libc++] std::atomic primary template should not have a `difference_type` member type (#123236) [libc++][chrono] implements GPS clock. (#125921) [libc++] Re-enable the FreeBSD CI job (#127687) [libc++] Qualify calls to nullary functions like __throw_foo (#122465) [libcxx] Work around picolibc argv handling in tests. (#127662) [libc++] Reduce the dependency of the locale base API on the base system from the headers (#117764) [libc++] Add benchmarks for copy algorithms (#127328) Apply clang-format to bitset_test_cases.h to make PR#120807 cleaner [libc++][test] Refactor tests for std::{copy, move, fill} algorithms (#120909) [libc++] Optimize ranges::move{,_backward} for vector::iterator (#121109) [libc++] Avoid code duplication in strings operator+ overloads (#126048) [libc++] Deprecate and remove member types of `hash` in `` (#127758) [libc++] Guard include of with __has_include (#127691) [libc++] Set feature-test macro `__cpp_lib_atomic_float` (#127559) [libc++] Add Hagenberg issues and papers to the Status pages (#127510) [libc++][TZDB] Improves system time zone detection. (#127339) [libc++] Updates the compilers used post branching. (#126564) [libc++] Do not guard inclusion of wchar.h with _LIBCPP_HAS_WIDE_CHARACTERS (#126924) [libc++] Document that libc++ does not and will never implement the Networking TS (#127508) [libc++][TZDB] Fixes mapping of nonexisting time. (#127330) [libc++] Synchronize a few remaining status page rows with Github issues [libc++] Synchronize status pages with Github issues list [libc++] Add watchOS and tvOS checks for aligned_alloc (#126862) ``` commit_hash:0fe92794332887531b208345c6646cabf16dc21f

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 12 Nov 2024

2026-01-28T08:03:42Z

``` [libc++] update comment for P0067R5 (#113239) [libc++] Replace template structs with template variables in (#115782) [libc++] Introduce a standalone __scope_guard and use it in (#114867) [libc++] Amend error message for _LIBCPP_HAS_THREAD_API_EXTERNAL (#115774) [libc++] Cleanly implement the base locale API for BSD-like platforms (#115176) [libc++] Fix throwing away smaller allocations in string::shrink_to_fit (#115659) [libc++][hardening] Constrain construction for `__{(static_)bounded,wrap}_iter` (#115271) [libc++][test] Clean up code in GenerateInput.h for benchmark testing (#115560) [libc++] Update CMake dependency for generate_iwyu_mapping.py (#115387) [libc++] Use explicit #include instead of transitive #include (#115420) [libc++][hardening] Use `static_assert` for `__(static_)bounded_iter` (#115304) [libc++][docs] Document _LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION (#115405) [z/OS][libc++] Remove `align_val_t` dependency in small_buffer.h (#114396) [libc++] Fix `unexpected` heterogeneous comparison (#115249) [libc++] Add support for bounded iterators in std::array (#110729) [libc++] Unify the benchmarks with the test suite (#101399) [libcxx] Fix inverted `has_terminal` condition [libc++] Define an internal locale API as a shim on top of the current one (#114596) [libc++] Only include the system and if they exist (#115017) [libc++] Forward more algorithms to the classic algorithms (#114674) [libc++] Refactor the configuration macros to being always defined (#112094) [libc++] Remove includes from the granularized headers (#114788) [libcxx] Use `lgamma` rather than `lgamma_r` with LLVM libc (#109556) [libc++] Remove and includes from (#114876) [libc++][test] Improve ThrowingT to Accurately Throw after throw_after > 1 Use (#114077) [libc++] Simplify string::reserve (#114869) [libc++] Make benchmarks forward-compatible with the test suite (#114502) [libc++] Set `__cpp_lib_smart_ptr_for_overwrite` (#114700) [libcxx] Add testing configuration for GPU targets (#104515) [libc++] Simplify aligned_storage (#114665) [libc++] remove minor version in status pages (#113241) [libc++] Apply post-commit review comments for unique_ptr hardening (#111704) [libc++] Inline small functions inside vector (#114567) [libc++] Remove a few includes from pair.h (#114708) [libc++] Refactor __split_buffer to eliminate code duplication (#114138) [libc++] Add a few _LIBCPP_ASSERT_INTERNALs to make sure internal invariants are kept (#114575) [libc++] Use enable_if_t to constrain make_unique{,_for_overwrite} (#95044) [libc++][test] add test coverage for `flat_map::emplace_hint` (#113773) [libc++] Use proper functions instead of macros in bsd_locale_defaults.h (#113759) [libc++] Add missing include [libc++] Fix dumb typo [libc++] Add a few missing includes [libc++] Split std::hash benchmark out of std::unordered_set benchmark (#114448) [libc++] Include language.h inside __config (#114269) [libc++][C++03] Fix libc++ includes (#109000) [libc++] Granularize includes (#108696) [libc++] Deprecate and remove meaningless `` headers (#111615) [libc++] Constrain additional overloads of `pow` for `complex` harder (#110235) [libc++][test] Augment `test_alloc` in `deallocate_size.pass.cpp` (#113638) [libc++] Remove _LIBCPP_ENABLE_ASSERTIONS, which had been deprecated (#113592) Add exception guard for constructor vector(n, x, a) (#113086) [clang] Warn about memset/memcpy to NonTriviallyCopyable types (#111434) [libc++] temporarily mark XFAIL for the armv7-unknown-linux-gnueabihf with simd unary test to pass the CI (#113641) [libc++] Implement P0429R9 `std::flat_map` (#98643) [libc++] Split Apple and Freebsd locale support into their own headers (#113737) [libc++][test] Make macro detection more friendly to MSVC (#113633) [libc++] Bump `__cpp_lib_optional` and `__cpp_lib_variant` (#113650) [libc++] Remove obsolete Solaris and Newlib support for locales (#113721) [libc++][test] Use `ADDITIONAL_COMPILE_FLAGS(gcc-style-warnings)` for `-Wno-psabi` (#113608) [libc++] Refactor locale_guard (#113694) [libc++] Granularize (#99705) [libc++] __uglify `[[clang::noescape]]` (#113280) [runtimes] Probe for -nostdlib++ and -nostdinc++ with the C compiler (#108357) [libc++] Exclude C++03 frozen headers from the modulemap (#113572) [libc++] Refactor vector::push_back to use vector::emplace (#113481) [libc++] Remove workaround which allows setting _LIBCPP_OVERRIDABLE_FUNC_VIS externally (#113139) [libc++] Add a escape hatch for making __libcpp_verbose_abort non-noexcept again (#113310) [libc++] Disallow std::prev(non_cpp17_bidi_iterator) (#112102) [libc++][ranges] LWG4016: container-insertable checks do not match what container-inserter does (#113103) [libc++] Add unary operators for class simd (#104764) [libc++] Refactor vector constructors to eliminate code duplication (#113193) [libc++] Rewrite the transitive header checking machinery (#110554) [libc++] Fix typo in is_always_lock_free test (#113169) [libcxx][libc] Hand in Hand PoC with from_chars (#91651) [libc++] Remove libc++'s own stdint.h and locale.h (#107436) [libc++] Fix `reverse_iterator` when underlying is c++20 `bidirectional_iterator` but not `Cpp17BidirectionalIterator` (#112100) [libc++] __uglify non-conforming member typedef `base` (#112843) [libc++] Re-add attribute macro to clang-format (#112746) [libc++] Remove obsolete _LIBCPP_PREDEFINED_OBJC_ARC_ADDRESSOF (#112745) [runtimes] Improve the documentation for LIBCXX_ADDITIONAL_COMPILE_FLAGS (#112733) [libc++] Mark libc++ deallocation helpers as noexcept (#110884) [runtimes] Avoid cluttering the top-level build directory with test artifacts (#112717) [libc++] Remove obsolete Appveyor files (#112744) [libc++] Make __libcpp_verbose_abort() noexcept like std::terminate() (#109151) [libc++][ranges] LWG3692: `zip_view::iterator`'s `operator<=>` is overconstrained and changes of `zip_view` in P2165R4 (#112077) [libc++][test] Fix `overload_compare_iterator::iterator_category` (#112165) [libc++] Fix expression-equivalence for `mem_fn` (#111307) ``` commit_hash:8ce63343127a5ed85e0fb452d828d49e29e0a94c

Update libcxx to 12 Oct 2024

2026-01-13T19:56:15Z

commit_hash:2c510cb113f87b97a191ca1a87e2beb8a03e3e5c

Update libcxx to 20 Sep 2024

2025-04-19T14:32:41Z

TRIVIAL commit_hash:04d8ae0a53854a1ed8cdea2e191c8dfa1248c023