Roll libc++ from b5d83e70a153 to 7a36df3acb83 (43 revisions)

https://chromium.googlesource.com/external/github.com/llvm/llvm-project/libcxx.git/+log/b5d83e70a153..7a36df3acb83

2025-06-25 hghristov.rmm@gmail.com [libc++] P2944R3: Constrained comparisions - `variant` (#141396)
2025-06-24 ldionne.2@gmail.com [libc++] Refactor basic_filebuf::overflow() (#144793)
2025-06-24 hui.xie1990@gmail.com [libc++] Fix no-localisation CI failure on <complex> (#145213)
2025-06-24 winner245@hotmail.com [libc++] Fix bitset conversion functions and refactor constructor (#121348)
2025-06-23 nikolasklauser@berlin.de [libc++] Remove a bunch of now unnecessary indirections in __tree (#142397)
2025-06-23 nikolasklauser@berlin.de [libc++] Add test to ensure that the mangling of types stays the same (#143556)
2025-06-21 hui.xie1990@gmail.com [libc++] constexpr flat_map (#137453)
2025-06-21 mazkuba3@gmail.com [libc++] Implement `views::join_with` (#65536)
2025-06-21 nikolasklauser@berlin.de [libc++] Simplify <limits> a bit (#140021)
2025-06-21 nikolasklauser@berlin.de [libc++] Simplify std::function further after removing allocator support (#144443)
2025-06-20 aidengrossman@google.com [libc++] Disable a std::unexpected test in modules build (#144466)
2025-06-20 hghristov.rmm@gmail.com [libc++] Update the value of __cpp_lib_constrained_equality after P3379R0 (#144553)
2025-06-19 nikolasklauser@berlin.de [libc++][NFC] Format abs.pass.cpp test
2025-06-19 nikolasklauser@berlin.de [libc++] Move std::abs into __math/abs.h (#139586)
2025-06-19 nikolasklauser@berlin.de [libc++] Simplify the implementation of pointer_traits a bit (#142260)
2025-06-19 cpplearner@outlook.com [libc++][test] Don't pass ill-formed UTF-8 to MAKE_STRING_VIEW (#136403)
2025-06-18 kazu@google.com [libc++] Fix a typo in documentation (#144763)
2025-06-18 winner245@hotmail.com [libc++] Optimize ranges::{for_each, for_each_n} for segmented iterators (#132896)
2025-06-18 winner245@hotmail.com [libc++] Clean up casts in std::forward_list (#130310)
2025-06-18 winner245@hotmail.com [libc++] Make list constexpr as part of P3372R3 (#129799)
2025-06-18 nikolasklauser@berlin.de [libc++] Move __has_iterator_typedefs to the up-to-C++17 implementation of iterator_traits (#144265)
2025-06-18 martin@martin.st [libcxx] [test] Fix odr_signature tests with optimizations enabled (#144317)
2025-06-17 dthorn@google.com Revert "[libc++] Remove trailing newline from _LIBCPP_ASSERTION_HANDLER calls" (#144615)
2025-06-17 sbc@chromium.org [libc++] Remove trailing newline from _LIBCPP_ASSERTION_HANDLER calls (#143573)
2025-06-17 ldionne.2@gmail.com [libc++] Mark two assertion tests as unsupported in C++03 mode
2025-06-17 ldionne.2@gmail.com [libc++][NFC] Refactor basic_streambuf to use public API functions when possible (#144547)
2025-06-17 ldionne.2@gmail.com [libc++][NFC] Consistently qualify calls to C functions in <fstream> (#144539)
2025-06-16 nikolasklauser@berlin.de [libc++] Remove a few workarounds for old Clang versions (#143858)
2025-06-15 hghristov.rmm@gmail.com [libc++] P2944R3: Constrained comparisons - update `reference_wrapper` implementation (#139368)
2025-06-12 hehiralbi@gmail.com [libc++][test] Improve test coverage for flat_set (lack of) SCARY iterators (#139649)
2025-06-12 kotborealis@awooo.ru [libc++] Update GDB pretty-printer to work with GDB 17 (#142106)
2025-06-12 tynasello@google.com [libc++] Expand Android libc++ test config files (#142846)
2025-06-12 kazu@google.com [libc++] Fix typos in documentation (#143912)
2025-06-12 de34@live.cn [libc++] Fix constructing `bitset` from non-null-terminated arrays (#143691)
2025-06-12 nikolasklauser@berlin.de [libc++] Remove allocator support from std::function (#140395)
2025-06-11 nikolasklauser@berlin.de [libc++] Remove static_assert from hash.cpp that fires unconditionall
2025-06-11 nikolasklauser@berlin.de [libc++] Simplify the implementation of __next_prime a bit (#143512)
2025-06-11 nikolasklauser@berlin.de [libc++] Upgrade to GCC 15 (#138293)
2025-06-11 winner245@hotmail.com [libc++] Make forward_list constexpr as part of P3372R3 (#129435)
2025-06-11 nikolasklauser@berlin.de [libc++][NFC] Move __libcpp_is_integral into the  else branch (#142556)
2025-06-11 nikolasklauser@berlin.de [libc++] Refactor signed/unsigned integer traits (#142750)
2025-06-11 nikolasklauser@berlin.de [libc++] Fix constraints in `__countr_zero` and `__popcount`
2025-06-11 6399679+maflcko@users.noreply.github.com [libc++] Add missing C++20 [time.point.arithmetic] (#143165)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/libcxx-chromium
Please CC hans@chromium.org,thakis@chromium.org on the revert to ensure that a human
is aware of the problem.

To file a bug in Chromium: https://bugs.chromium.org/p/chromium/issues/entry

To report a problem with the AutoRoller itself, please file a bug:
https://issues.skia.org/issues/new?component=1389291&template=1850622

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Bug: 428050052
Tbr: hans@chromium.org,thakis@chromium.org
Change-Id: I9e33870d5f40129250efdd34c2a2577933f2b6dd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6672234
Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1483880}
NOKEYCHECK=True
GitOrigin-RevId: 5e580ced24e94e6c1491ff5264357eaa02064d5f
7 files changed
tree: b7f3d0efcdf24c605da9c69e5cb17570d7119f36
  1. .github/
  2. absl/
  3. ci/
  4. CMake/
  5. patches/
  6. .clang-format-ignore
  7. ABSEIL_ISSUE_TEMPLATE.md
  8. absl.gni
  9. absl_hardening_test.cc
  10. AUTHORS
  11. BUILD.bazel
  12. BUILD.gn
  13. CMakeLists.txt
  14. conanfile.py
  15. CONTRIBUTING.md
  16. create_lts.py
  17. DIR_METADATA
  18. FAQ.md
  19. generate_def_files.py
  20. LICENSE
  21. MODULE.bazel
  22. OWNERS
  23. PrivacyInfo.xcprivacy
  24. README.chromium
  25. README.md
  26. roll_abseil.py
  27. symbols_arm64_dbg.def
  28. symbols_arm64_rel.def
  29. symbols_x64_dbg.def
  30. symbols_x64_rel.def
  31. symbols_x64_rel_asan.def
  32. symbols_x86_dbg.def
  33. symbols_x86_rel.def
  34. UPGRADES.md
README.md

Abseil - C++ Common Libraries

The repository contains the Abseil C++ library code. Abseil is an open-source collection of C++ code (compliant to C++17) designed to augment the C++ standard library.

Table of Contents

About Abseil

Abseil is an open-source collection of C++ library code designed to augment the C++ standard library. The Abseil library code is collected from Google's own C++ code base, has been extensively tested and used in production, and is the same code we depend on in our daily coding lives.

In some cases, Abseil provides pieces missing from the C++ standard; in others, Abseil provides alternatives to the standard for special needs we've found through usage in the Google code base. We denote those cases clearly within the library code we provide you.

Abseil is not meant to be a competitor to the standard library; we've just found that many of these utilities serve a purpose within our code base, and we now want to provide those resources to the C++ community as a whole.

Quickstart

If you want to just get started, make sure you at least run through the Abseil Quickstart. The Quickstart contains information about setting up your development environment, downloading the Abseil code, running tests, and getting a simple binary working.

Building Abseil

Bazel and CMake are the official build systems for Abseil. See the quickstart for more information on building Abseil using the Bazel build system. If you require CMake support, please check the CMake build instructions and CMake Quickstart.

Support

Abseil follows Google's Foundational C++ Support Policy. See this table for a list of currently supported versions compilers, platforms, and build tools.

Codemap

Abseil contains the following C++ library components:

  • base
    The base library contains initialization code and other code which all other Abseil code depends on. Code within base may not depend on any other code (other than the C++ standard library).
  • algorithm
    The algorithm library contains additions to the C++ <algorithm> library and container-based versions of such algorithms.
  • cleanup
    The cleanup library contains the control-flow-construct-like type absl::Cleanup which is used for executing a callback on scope exit.
  • container
    The container library contains additional STL-style containers, including Abseil's unordered “Swiss table” containers.
  • crc The crc library contains code for computing error-detecting cyclic redundancy checks on data.
  • debugging
    The debugging library contains code useful for enabling leak checks, and stacktrace and symbolization utilities.
  • flags
    The flags library contains code for handling command line flags for libraries and binaries built with Abseil.
  • hash
    The hash library contains the hashing framework and default hash functor implementations for hashable types in Abseil.
  • log
    The log library contains LOG and CHECK macros and facilities for writing logged messages out to disk, stderr, or user-extensible destinations.
  • memory
    The memory library contains memory management facilities that augment C++'s <memory> library.
  • meta
    The meta library contains type checks similar to those available in the C++ <type_traits> library.
  • numeric
    The numeric library contains 128-bit integer types as well as implementations of C++20's bitwise math functions.
  • profiling
    The profiling library contains utility code for profiling C++ entities. It is currently a private dependency of other Abseil libraries.
  • random
    The random library contains functions for generating pseudorandom values.
  • status
    The status library contains abstractions for error handling, specifically absl::Status and absl::StatusOr<T>.
  • strings
    The strings library contains a variety of strings routines and utilities.
  • synchronization
    The synchronization library contains concurrency primitives (Abseil's absl::Mutex class, an alternative to std::mutex) and a variety of synchronization abstractions.
  • time
    The time library contains abstractions for computing with absolute points in time, durations of time, and formatting and parsing time within time zones.
  • types
    The types library contains non-container utility types.
  • utility
    The utility library contains utility and helper code.

Releases

Abseil recommends users “live-at-head” (update to the latest commit from the master branch as often as possible). However, we realize this philosophy doesn't work for every project, so we also provide Long Term Support Releases to which we backport fixes for severe bugs. See our release management document for more details.

License

The Abseil C++ library is licensed under the terms of the Apache license. See LICENSE for more information.

Links

For more information about Abseil: