William Tran-Viet 54b671e054

[libc++][NFC] Simplify most of optional.observe (#185252) ...

- Hoist `operator*()`, `operator->()`, `value()` into their respective
`optional_storage_base` to reduce the amount of concepts flying around.
- `value_or()` has been deliberately left out since that seems to
produce extra (superfluous) error messages during invalid template
instantiation.

2026-03-10 13:48:32 +08:00

..

__algorithm

[libc++] Forward find* algorithms to find_if (#179938)

2026-02-27 14:48:58 -08:00

__atomic

[libc++] Fix typo in atomic.h comment (#182719)

2026-02-23 09:43:04 +08:00

__bit

[libc++] Add parentheses around shift operations in bitwise expressions (#175407)

2026-01-14 17:36:33 -05:00

__charconv

[libc++][NFC] Don't use copy_n to copy a single integer in __sign_combinator (#181119)

2026-02-13 10:51:57 +01:00

__chrono

[libc++] Fix gps_time formatting and related tests (#181560)

2026-02-23 09:20:39 -05:00

__compare

[libc++][concepts] P2404R3: Move-only types for equality_comparable_with, totally_ordered_with, and three_way_comparable_with (#99420)

2025-12-19 17:56:32 +08:00

__concepts

[libc++][concepts] P2404R3: Move-only types for equality_comparable_with, totally_ordered_with, and three_way_comparable_with (#99420)

2025-12-19 17:56:32 +08:00

__condition_variable

[libc++] Applied [[nodiscard]] to concurrency (partially) (#169463)

2025-11-27 00:04:27 +02:00

__configuration

[libc++] Increase the minimum deployment target on macOS to 11.0 (#176094)

2026-02-13 17:03:41 -05:00

__coroutine

[libc++] Applied [[nodiscard]] to Language Support (partially) (#169611)

2025-11-26 22:17:38 +02:00

__cstddef

…

__cxx03

[libc++][NFC] Remove _LIBCPP_FREESTANDING (#176907)

2026-01-29 10:13:32 +01:00

__debug_utils

[libc++] Honor __SANITIZER_DISABLE_CONTAINER_OVERFLOW__ in libc++ (#168955)

2026-01-27 16:04:03 +00:00

__exception

[libc++] Do not redefine _LIBCPP_AVAILABILITY_HAS_INIT_PRIMARY_EXCEPTION (#177851)

2026-01-26 12:56:23 -05:00

__expected

[libc++][expected] Applied [[nodiscard]] (#170245)

2025-12-14 19:11:16 +02:00

__filesystem

[libc++][NFC] Simplify some overloads in fs::path a bit (#181053)

2026-02-13 10:50:17 +01:00

__flat_map

[libc++][NFC] Remove unused __key_equiv from flat_multimap and flat_multiset (#175612)

2026-01-13 10:37:24 +01:00

__flat_set

[libc++][NFC] Remove unused __key_equiv from flat_multimap and flat_multiset (#175612)

2026-01-13 10:37:24 +01:00

__format

[libc++] Avoid including <format> code in <optional> (#179466)

2026-02-19 11:09:10 +01:00

__functional

[libc++] Add alias template for __strip_signature::type (#181955)

2026-03-06 17:49:39 +00:00

__fwd

[libc++] Avoid including <format> code in <optional> (#179466)

2026-02-19 11:09:10 +01:00

__ios

[libc++] Revert undesired [[nodiscard]] added to conversion functions (#173658)

2026-01-08 13:32:11 +08:00

__iterator

[libc++][NFC] Simplify optional::iterator (#183230)

2026-03-08 09:58:06 +08:00

__locale_dir

[libc++] Optimize using std::copy with an ostreambuf_iterator (#181815)

2026-02-26 12:01:07 +01:00

__math

[libc++] Add a thread-safe version of std::lgamma in the dylib (#153631)

2026-02-25 13:46:51 -05:00

__mdspan

[libc++][mdspan][NFC] Remove redundant else and trailing semicolons (#175024)

2026-01-10 14:40:08 +08:00

__memory

[libc++] Specialize allocator_traits for std::allocator (#160278)

2026-02-05 11:43:47 +01:00

__memory_resource

[libc++][memory_resource] Applied [[nodiscard]] (#172134)

2026-01-12 18:23:14 +02:00

__mutex

[libcxx] LWG4172 fix self-move-assignment in {unique|shared}_lock (#129542)

2025-12-19 15:06:39 +08:00

__new

[libc++][NFC] Assume that __GCC_{CON,DE}STRUCTIVE_SIZE are available (#171625)

2026-01-06 17:17:18 +01:00

__numeric

[libc++] Removed unused internal helper functions from the midpoint.h header (#175514)

2026-01-12 17:37:51 +02:00

__ostream

[libc++] Introduce the notion of a minimum header version (#166074)

2026-01-09 11:58:29 +01:00

__pstl

[libc++][pstl] Generic implementation of parallel std::is_sorted (#176129)

2026-01-27 13:43:23 -05:00

__random

[libc++] Add a thread-safe version of std::lgamma in the dylib (#153631)

2026-02-25 13:46:51 -05:00

__ranges

[libc++][ranges] Updated [[nodiscard]] implementation for subrange and join_with_view (#176936)

2026-01-27 11:03:07 +02:00

__stop_token

[libc++][NFC] Use std::has_single_bit instead of std::popcount(v) == 1 (#181787)

2026-02-19 09:29:43 +01:00

__string

[libc++] Refactor __libcpp_is_trivially_equality_comparable to be a variable template (#173151)

2025-12-22 10:04:47 +01:00

__support

[libc++] Optimize num_get integral functions (#121795)

2025-11-24 16:53:58 +01:00

__system_error

[libc++] Applied [[nodiscard]] to <exception>, <stdexcept> and <system_error> (#170837)

2025-12-06 16:10:55 +02:00

__thread

[libc++] Refactor poll_with_backoff (#173184)

2026-01-07 17:12:32 +00:00

__tuple

[libc++] Implement adjacent_view (#165089)

2025-12-13 19:33:32 +00:00

__type_traits

[libc++] Add alias template for __strip_signature::type (#181955)

2026-03-06 17:49:39 +00:00

__utility

[libc++] Introduce a escape hatch for the changed behavior of map and set search operations (#183190)

2026-02-26 10:22:59 -05:00

__variant

…

__vector

[libc++] Don't double-wrap iterators when bounded iterators are used (#182264)

2026-03-07 09:12:25 +01:00

experimental

[libc++] Granularize <locale> (#146650)

2025-07-05 18:11:58 +02:00

ext

[libc++] Fix the rest of __gnu_cxx::hash_XXX copy construction (#160525)

2025-12-02 22:18:50 +01:00

__assert

[libc++][hardening] Add a greppable prefix to assertion messages. (#150560)

2025-07-31 02:52:17 -07:00

__bit_reference

[libc++] Refactor swap_ranges to use __specialized_algorithm for the vector<bool>::iterator specialization (#173384)

2026-01-29 11:11:51 +01:00

__config

[libc++][NFC] Remove _LIBCPP_FREESTANDING (#176907)

2026-01-29 10:13:32 +01:00

__config_site.in

[libc++] Provide flag for RUNTIMES_USE_LIBC=llvm-libc (#174967)

2026-01-15 12:24:39 +00:00

__hash_table

[libc++] Fix __hash_table::erase(iterator, iterator) to update the bucket list correctly when erasing the last bucket (#167865)

2025-11-17 17:31:55 +01:00

__locale

[libc++] Remove numpunct_byname::__init (#173283)

2026-01-08 12:08:56 +01:00

__log_hardening_failure

[libc++][hardening] Add an experimental function to log hardening errors (#149452)

2025-07-24 13:39:48 -04:00

__mbstate_t.h

…

__node_handle

[libc++][NFC] Remove special handling for __hash_value_type in <__node_handle> (#147271)

2025-07-10 09:21:46 +02:00

__split_buffer

Revert "[libcxx] adds __split_buffer::__swap_layouts" (#185120)

2026-03-06 22:31:42 +00:00

__std_mbstate_t.h

…

__tree

[libc++] Introduce a escape hatch for the changed behavior of map and set search operations (#183190)

2026-02-26 10:22:59 -05:00

__undef_macros

…

__verbose_abort

Revert "[libc++] Introduce ABI sensitive areas to avoid requiring _LIBCPP_HIDE_FROM_ABI everywhere (#131156)" (#141756)

2025-05-28 12:04:51 -04:00

__verbose_trap

[libc++] Introduce the _LIBCPP_VERBOSE_TRAP macro (#148262)

2025-07-14 09:56:19 -04:00

algorithm

[libc++] Implement ranges::shift_right (#177847)

2026-02-14 17:34:44 +00:00

any

[libc++] Short-cut constraints of single-argument any constructor (#177082)

2026-02-02 17:48:55 +01:00

array

[libc++][array] Applied [[nodiscard]] (#168829)

2025-11-24 12:32:29 +02:00

atomic

[libc++] Introduce a native timed wait in the synchronization library (#172214)

2026-01-20 09:59:57 -05:00

barrier

[libc++] Use native wait in std::barrier instead of sleep loop (#171041)

2025-12-14 09:34:57 +00:00

bit

…

bitset

[libc++] Always return bool from bitset::operator[](size_t) const (#169894)

2025-12-12 09:06:50 +01:00

cassert

…

ccomplex

[libc++] Fix header deprecations (#163356)

2025-11-18 16:05:53 +01:00

cctype

…

cerrno

…

cfenv

…

cfloat

[libc++] Remove libc++'s <float.h> (#175849)

2026-01-19 15:12:40 -05:00

charconv

…

chrono

[libc++][chrono] P2592R3: Hashing for chrono (#165132)

2026-01-03 10:32:14 +08:00

cinttypes

…

ciso646

[libc++] Fix header deprecations (#163356)

2025-11-18 16:05:53 +01:00

climits

…

clocale

…

CMakeLists.txt

[libc++] Implement ranges::shift_right (#177847)

2026-02-14 17:34:44 +00:00

cmath

…

codecvt

Revert "[libc++] Introduce ABI sensitive areas to avoid requiring _LIBCPP_HIDE_FROM_ABI everywhere (#131156)" (#141756)

2025-05-28 12:04:51 -04:00

compare

…

complex

[libc++][complex] Applied [[nodiscard]] (#171027)

2025-12-13 11:19:57 +02:00

complex.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00

concepts

…

condition_variable

[libc++] Remove availability annotations that aren't required anymore (#161640)

2025-10-09 08:46:02 +02:00

coroutine

…

csetjmp

…

csignal

…

cstdalign

[libc++] Fix header deprecations (#163356)

2025-11-18 16:05:53 +01:00

cstdarg

…

cstdbool

[libc++] Fix header deprecations (#163356)

2025-11-18 16:05:53 +01:00

cstddef

…

cstdint

…

cstdio

…

cstdlib

…

cstring

…

ctgmath

[libc++] Fix header deprecations (#163356)

2025-11-18 16:05:53 +01:00

ctime

…

ctype.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00

cuchar

…

cwchar

[libc++] Refactor __libcpp_is_trivially_equality_comparable to be a variable template (#173151)

2025-12-22 10:04:47 +01:00

cwctype

…

deque

[libc++] Honor __SANITIZER_DISABLE_CONTAINER_OVERFLOW__ in libc++ (#168955)

2026-01-27 16:04:03 +00:00

errno.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00

exception

[libc++] Remove <cstdlib> include from <exception> (#166340)

2025-11-05 09:42:35 +01:00

execution

…

expected

…

fenv.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00

filesystem

…

flat_map

[libc++] Implement P3567R2 flat_meow fixes (#162022)

2025-12-20 21:18:44 +00:00

flat_set

[libc++] Implement P3567R2 flat_meow fixes (#162022)

2025-12-20 21:18:44 +00:00

format

…

forward_list

[libc++][forward_list] Applied [[nodiscard]] (#169019)

2025-11-24 16:30:17 +02:00

fstream

[libc++][NFC] Refactor __request_unbuffered_mode (#168950)

2026-01-14 13:39:16 -05:00

functional

[libc++] P2655R3 common_reference_t of reference_wrapper Should Be a Reference Type (#141408)

2025-07-06 17:32:59 +01:00

future

[libc++] Add alias template for __strip_signature::type (#181955)

2026-03-06 17:49:39 +00:00

initializer_list

[libc++] Applied [[nodiscard]] to Language Support (partially) (#169611)

2025-11-26 22:17:38 +02:00

inttypes.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00

iomanip

[libc++][NFC] Use std::quoted in fs::path and remove the private __quoted (#181043)

2026-02-12 10:54:09 +01:00

ios

[libc++] Revert undesired [[nodiscard]] added to conversion functions (#173658)

2026-01-08 13:32:11 +08:00

iosfwd

…

iostream

…

istream

[libc++][istream] Removed [[nodiscard]] from peek() (#175591)

2026-01-13 05:55:03 +02:00

iterator

[libc++][ranges] Ensure range access CPOs are provided in <iterator> (#151745)

2025-08-18 13:26:13 +08:00

latch

[libc++] Applied [[nodiscard]] to concurrency (partially) (#169463)

2025-11-27 00:04:27 +02:00

limits

[libc++] Remove is_signed<T> use from <limits> (#168334)

2025-11-19 18:50:27 +01:00

list

[libc++][list] Applied [[nodiscard]] (#169015)

2025-11-24 12:32:50 +02:00

locale

[libc++] Granularize <locale> (#146650)

2025-07-05 18:11:58 +02:00

map

[libc++] Only make comparators transparent in __tree if they don't cause a conversion (#179453)

2026-02-10 13:26:55 +01:00

math.h

[libc++] Workaround for a bug of overloads in MS UCRT's <math.h> (#149234)

2025-08-05 17:47:11 +08:00

mdspan

[libcxx] Mark LWG4275 as complete and remove related TODO (#171665)

2025-12-21 23:56:51 -08:00

memory

…

memory_resource

…

module.modulemap.in

Reapply "[libc++] Add test_iterators.h to the modulemap (#181351)"

2026-02-16 08:09:55 +01:00

mutex

[libc++] Applied [[nodiscard]] to concurrency (partially) (#169463)

2025-11-27 00:04:27 +02:00

new

…

numbers

…

numeric

…

optional

[libc++][NFC] Simplify most of optional.observe (#185252)

2026-03-10 13:48:32 +08:00

ostream

[libc++] Granularize <locale> (#146650)

2025-07-05 18:11:58 +02:00

print

[libc++] Diagnose passing null pointers to a bunch of APIs (#148585)

2025-07-19 11:12:20 +02:00

queue

[libc++][queue] Applied [[nodiscard]] (#169469)

2025-11-27 09:44:28 +08:00

random

…

ranges

[libc++] Implement adjacent_transform (#168208)

2025-12-21 09:08:09 +00:00

ratio

…

regex

[libc++] Remove __wrap_iter::base() (#179389)

2026-03-05 20:06:46 +08:00

scoped_allocator

[libc++][scoped_allocator] Applied [[nodiscard]] (#175291)

2026-01-12 13:23:12 +02:00

semaphore

[libc++] Introduce a native timed wait in the synchronization library (#172214)

2026-01-20 09:59:57 -05:00

set

[libc++][multiset] Applied [[nodiscard]] (#171654)

2025-12-12 10:26:25 +02:00

shared_mutex

[libcxx] LWG4172 fix self-move-assignment in {unique|shared}_lock (#129542)

2025-12-19 15:06:39 +08:00

source_location

…

span

[libc++][span] Mark functions as [[nodiscard]] (#168033)

2025-11-18 05:38:06 +02:00

sstream

[libc++] Applied [[nodiscard]] to <fstream>, <sstream>, <strstream>, <synchstream> (#173842)

2026-01-04 08:52:19 +02:00

stack

[libc++][stack] Applied [[nodiscard]] (#169468)

2025-11-25 18:55:34 +02:00

stdatomic.h

[libc++] "Always" include_next for non C++ path in stdatomic.h (#178463)

2026-01-30 10:01:51 -05:00

stddef.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00

stdexcept

[libc++] Applied [[nodiscard]] to <exception>, <stdexcept> and <system_error> (#170837)

2025-12-06 16:10:55 +02:00

stdio.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00

stdlib.h

[libc++] Move std::abs into __math/abs.h (#139586)

2025-06-19 10:37:18 +02:00

stop_token

…

streambuf

Reapply "[libc++] Optimize std::find_if" (#175903) (#175921)

2026-01-15 10:16:45 +01:00

string

[libc++] Don't double-wrap iterators when bounded iterators are used (#182264)

2026-03-07 09:12:25 +01:00

string_view

[libc++][string_view] Applied [[nodiscard]] (#169010)

2025-11-24 18:44:44 +02:00

string.h

…

strstream

[libc++] Applied [[nodiscard]] to <fstream>, <sstream>, <strstream>, <synchstream> (#173842)

2026-01-04 08:52:19 +02:00

syncstream

[libc++] Applied [[nodiscard]] to <fstream>, <sstream>, <strstream>, <synchstream> (#173842)

2026-01-04 08:52:19 +02:00

system_error

…

tgmath.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00

thread

…

tuple

[libc++][tuple] Applied [[nodiscard]] (#172008)

2025-12-16 16:56:10 +02:00

type_traits

[libc++] Merge is_{,un}bounded_array.h into is_array.h (#167479)

2025-11-13 09:29:28 +01:00

typeindex

[libc++] Applied [[nodiscard]] to more Language Support classes (#171078)

2025-12-23 18:46:37 +02:00

typeinfo

[libc++] Applied [[nodiscard]] to more Language Support classes (#171078)

2025-12-23 18:46:37 +02:00

uchar.h

…

unordered_map

[libc++] Remove [[nodiscard]] from map etc. operator[] (#172444)

2025-12-16 12:58:04 +01:00

unordered_set

[libc++][unordered_set] Applied [[nodiscard]] (#170435)

2025-12-15 09:17:35 +02:00

utility

[libc++] Implement P1789R3: Library Support for Expansion Statements (#167184)

2025-12-26 09:07:13 +08:00

valarray

[libc++] Introduce the notion of a minimum header version (#166074)

2026-01-09 11:58:29 +01:00

variant

[libc++] Fix std::variant comparators not working on recursive instantiations (#182238)

2026-03-07 10:13:34 +01:00

vector

…

version

[libc++] Implement ranges::shift_right (#177847)

2026-02-14 17:34:44 +00:00

wchar.h

…

wctype.h

[libc++][C++03] Remove some of the C++03-specific C wrapper headers (#163772)

2025-10-24 10:08:21 +02:00