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Star2
35
GGitHub[libc++] Remove __is_replaceable emulation (#167355)
17ce48f2创建于 2025年11月11日历史提交
文件最后提交记录最后更新时间
as_const.h
[libc++][NFC] Merge add_{const, cv, volatile}.h into a single header (#115610) There isn't much benefit in having granular headers for only a few simple lines of code.
1 年前
as_lvalue.h
[libc++] P2770R0: Stashing stashing iterators for proper flattening (#66033) - Partially implements P2770R0 (http://wg21.link/p2770) - Fixes https://wg21.link/LWG3698, https://wg21.link/LWG3700, and https://wg21.link/LWG3791 - join_with_view hasn't been done yet since this type isn't implemented yet - Rename tuple test directory to match the standard (which changed in P2770R0) - Rename join_view test directory to match the standard
2 年前
auto_cast.h
[libc++] Add __decay_t and use it instead of decay<>::type This avoids instantiating lots of types. Reviewed By: ldionne, #libc Spies: libcxx-commits Differential Revision: https://reviews.llvm.org/D146984
3 年前
cmp.h
[libc++] std::cmp_less and other integer comparison functions could be improved (#151332) Fix #65136 |Benchmark | Baseline | Candidate | Difference | % Difference |------------------------- | ---------- | ----------- | ------------ | -------------- |BM_CmpEqual_int_int | 0.46 | 0.46 | -0.00 | -0.62 |BM_CmpEqual_int_schar | 0.45 | 0.45 | -0.00 | -0.40 |BM_CmpEqual_int_short | 0.45 | 0.45 | 0.00 | 0.34 |BM_CmpEqual_int_uchar | 0.78 | 0.44 | -0.34 | -43.18 |BM_CmpEqual_int_uint | 0.90 | 0.66 | -0.24 | -26.84 |BM_CmpEqual_int_ushort | 0.78 | 0.45 | -0.33 | -42.20 |BM_CmpEqual_schar_int | 0.45 | 0.45 | -0.00 | -0.77 |BM_CmpEqual_schar_schar | 0.54 | 0.57 | 0.03 | 5.64 |BM_CmpEqual_schar_short | 0.92 | 0.88 | -0.04 | -4.80 |BM_CmpEqual_schar_uchar | 1.84 | 0.66 | -1.18 | -64.16 |BM_CmpEqual_schar_uint | 0.78 | 0.66 | -0.12 | -15.18 |BM_CmpEqual_schar_ushort | 1.01 | 0.66 | -0.35 | -34.53 |BM_CmpEqual_short_int | 0.45 | 0.45 | 0.00 | 0.03 |BM_CmpEqual_short_schar | 0.89 | 0.88 | -0.01 | -0.80 |BM_CmpEqual_short_short | 0.47 | 0.46 | -0.01 | -1.28 |BM_CmpEqual_short_uchar | 1.11 | 0.66 | -0.45 | -40.63 |BM_CmpEqual_short_uint | 0.77 | 0.66 | -0.12 | -14.88 |BM_CmpEqual_short_ushort | 1.76 | 0.66 | -1.10 | -62.64 |BM_CmpEqual_uchar_int | 0.79 | 0.44 | -0.35 | -44.06 |BM_CmpEqual_uchar_schar | 1.76 | 0.66 | -1.11 | -62.68 |BM_CmpEqual_uchar_short | 1.11 | 0.66 | -0.45 | -40.33 |BM_CmpEqual_uchar_uchar | 0.57 | 0.51 | -0.06 | -10.61 |BM_CmpEqual_uchar_uint | 0.45 | 0.44 | -0.01 | -1.74 |BM_CmpEqual_uchar_ushort | 0.77 | 0.77 | -0.00 | -0.64 |BM_CmpEqual_uint_int | 0.88 | 0.66 | -0.23 | -25.69 |BM_CmpEqual_uint_schar | 0.77 | 0.66 | -0.11 | -14.85 |BM_CmpEqual_uint_short | 0.77 | 0.66 | -0.11 | -14.56 |BM_CmpEqual_uint_uchar | 0.44 | 0.44 | -0.00 | -0.57 |BM_CmpEqual_uint_uint | 0.47 | 0.51 | 0.04 | 8.62 |BM_CmpEqual_uint_ushort | 0.45 | 0.44 | -0.00 | -0.47 |BM_CmpEqual_ushort_int | 0.77 | 0.45 | -0.33 | -42.02 |BM_CmpEqual_ushort_schar | 1.02 | 0.66 | -0.36 | -35.30 |BM_CmpEqual_ushort_short | 1.76 | 0.66 | -1.10 | -62.60 |BM_CmpEqual_ushort_uchar | 0.78 | 0.77 | -0.01 | -1.84 |BM_CmpEqual_ushort_uint | 0.45 | 0.45 | 0.00 | 0.24 |BM_CmpEqual_ushort_ushort | 0.46 | 0.51 | 0.05 | 11.00 |BM_CmpLess_int_int | 0.67 | 0.66 | -0.01 | -0.99 |BM_CmpLess_int_schar | 0.66 | 0.66 | -0.01 | -0.86 |BM_CmpLess_int_short | 0.66 | 0.66 | -0.00 | -0.57 |BM_CmpLess_int_uchar | 0.88 | 0.66 | -0.23 | -25.48 |BM_CmpLess_int_uint | 1.76 | 0.66 | -1.11 | -62.68 |BM_CmpLess_int_ushort | 0.89 | 0.66 | -0.23 | -25.50 |BM_CmpLess_schar_int | 0.66 | 0.66 | -0.00 | -0.44 |BM_CmpLess_schar_schar | 0.66 | 0.66 | -0.00 | -0.40 |BM_CmpLess_schar_short | 0.88 | 0.88 | -0.00 | -0.50 |BM_CmpLess_schar_uchar | 1.10 | 0.71 | -0.39 | -35.24 |BM_CmpLess_schar_uint | 0.89 | 0.66 | -0.23 | -25.66 |BM_CmpLess_schar_ushort | 0.99 | 0.77 | -0.22 | -22.49 |BM_CmpLess_short_int | 0.66 | 0.66 | -0.00 | -0.35 |BM_CmpLess_short_schar | 0.89 | 0.88 | -0.00 | -0.48 |BM_CmpLess_short_short | 0.66 | 0.66 | -0.00 | -0.34 |BM_CmpLess_short_uchar | 1.10 | 0.71 | -0.39 | -35.36 |BM_CmpLess_short_uint | 0.88 | 0.66 | -0.22 | -25.39 |BM_CmpLess_short_ushort | 1.77 | 0.77 | -1.00 | -56.42 |BM_CmpLess_uchar_int | 0.97 | 0.66 | -0.31 | -31.95 |BM_CmpLess_uchar_schar | 1.11 | 0.66 | -0.44 | -40.17 |BM_CmpLess_uchar_short | 1.19 | 0.66 | -0.53 | -44.59 |BM_CmpLess_uchar_uchar | 0.66 | 0.66 | -0.00 | -0.67 |BM_CmpLess_uchar_uint | 0.67 | 0.66 | -0.01 | -1.19 |BM_CmpLess_uchar_ushort | 0.77 | 0.77 | -0.00 | -0.40 |BM_CmpLess_uint_int | 1.76 | 0.66 | -1.10 | -62.59 |BM_CmpLess_uint_schar | 0.89 | 0.66 | -0.23 | -25.99 |BM_CmpLess_uint_short | 0.88 | 0.66 | -0.22 | -25.41 |BM_CmpLess_uint_uchar | 0.66 | 0.66 | -0.01 | -0.81 |BM_CmpLess_uint_uint | 0.66 | 0.66 | -0.00 | -0.71 |BM_CmpLess_uint_ushort | 0.66 | 0.66 | -0.00 | -0.29 |BM_CmpLess_ushort_int | 0.98 | 0.66 | -0.32 | -33.00 |BM_CmpLess_ushort_schar | 1.29 | 0.77 | -0.52 | -40.56 |BM_CmpLess_ushort_short | 1.77 | 0.77 | -1.00 | -56.55 |BM_CmpLess_ushort_uchar | 0.77 | 0.77 | -0.01 | -0.72 |BM_CmpLess_ushort_uint | 0.66 | 0.66 | -0.00 | -0.46 |BM_CmpLess_ushort_ushort | 0.66 | 0.66 | -0.00 | -0.71
9 个月前
convert_to_integral.h
[libc++] Use __underlying_type directly in underyling_type_t (#135423) This avoids instantiating multiple classes, reducing compile times. This patch also introduces __underyling_type_t for internal use, similar to other type traits.
1 年前
declval.h
[libc++] Make sure std::declval() produces an error when ODR-used Fixes https://github.com/llvm/llvm-project/issues/61202 Differential Revision: https://reviews.llvm.org/D145376
2 年前
default_three_way_comparator.h
[clang][libc++] Fix spelling of "synthesize" (#158523) There is a tradition to use U.S. English spellings for APIs. For example, it's uninitialized_fill and not uninitialised_fill, specialization not specialisation, etcetera.
9 个月前
element_count.h
[libc++] Pass type information down to __libcpp_allocate (#118837) Currently, places where we call __libcpp_allocate must drop type information on the ground even when they actually have such information available. That is unfortunate since some toolchains and system allocators are able to provide improved security when they know what type is being allocated. This is the purpose of http://wg21.link/p2719, where we introduce a new variant of operator new which takes a type in its interface. A different but related issue is that std::allocator does not honor any in-class T::operator new since it is specified to call the global ::operator new instead. This patch closes the gap to make it trivial for implementations that provide typed memory allocators to actually benefit from that information in more contexts, and also makes libc++ forward-compatible with future proposals that would fix the existing defects in std::allocator. It also makes the internal allocation API higher level by operating on objects instead of operating on bytes of memory. Since this is a widely-used function and making this a template could have an impact on debug info sizes, I tried minimizing the number of templated layers by removing __do_deallocate_handle_size, which was easy to replace with a macro (and IMO this leads to cleaner code).
1 年前
empty.h
[libc++][PSTL] Overhaul exceptions handling This makes exception handling a lot simpler, since we don't have to convert any exceptions this way. Is also properly handles all the user-thrown exceptions. Reviewed By: ldionne, #libc Spies: arichardson, mstorsjo, libcxx-commits Differential Revision: https://reviews.llvm.org/D154238
2 年前
exception_guard.h
[libc++][NFC] fix exception_guard include guard name (#131370)
1 年前
exchange.h
[libc++][NFC] Merge is{,_nothrow,_trivially}{,_copy,_move,_default}{_assignable,_constructible} (#85308) These headers have become very small by using compiler builtins, often containing only two declarations. This merges these headers, since there doesn't seem to be much of a benefit keeping them separate. Specifically, is_{,_nothrow,_trivially}{assignable,constructible} are kept and the copy, move and default versions of these type traits are moved in to the respective headers.
2 年前
forward.h
[libc++][NFC] Use [[__nodiscard__]] unconditionally (#80454) __has_cpp_attribute(__nodiscard__) is always true now, so we might as well replace _LIBCPP_NODISCARD. It's one less macro that can result in bad diagnostics.
1 年前
forward_like.h
[libc++] Put _LIBCPP_NODEBUG on all internal aliases (#118710) This significantly reduces the amount of debug information generated for codebases using libc++, without hurting the debugging experience.
1 年前
in_place.h
[libc++] Remove a few incorrect _LIBCPP_EXPORTED_FROM_ABI annotations (#132602) This has two benefits: - It is less likely that the macro will be copy-pasted around when unnecessary - We can drop _LIBCPP_HIDE_FROM_ABI from any member functions once we are able to make _LIBCPP_HIDE_FROM_ABI the default within libc++
11 个月前
integer_sequence.h
[libc++] Refactor internal index_sequence API to match the public one (#149475) The internal API is a lot more complicated than it actually needs to be. This refactors the internal API to match the features and names of the public one.
1 年前
is_pointer_in_range.h
[libc++] Add a few _LIBCPP_ASSERT_INTERNALs to make sure internal invariants are kept (#114575) This can make it significanly easier to find bugs when working on string.
1 年前
is_valid_range.h
[libc++] Add a utility to check whether a range is valid (#87665) In the future, this utility could be made to also work with iterators, including bounded iterators. We could also query the ASAN runtime for this information when it's around.
2 年前
lazy_synth_three_way_comparator.h
[libc++] Specialize __lazy_synth_three_way_comparator for std::greater and friends (#157624) This specializes __lazy_synth_three_way_comparator to forward to __default_three_way_comparator if the comparator desugars to __greater_tag. This is the same as the desugaring to __less_tag except that the sign has to be inverted.
10 个月前
move.h
[libc++] Put _LIBCPP_NODEBUG on all internal aliases (#118710) This significantly reduces the amount of debug information generated for codebases using libc++, without hurting the debugging experience.
1 年前
no_destroy.h
[libc++] Remove a few unused includes in <utility> headers (#129674)
1 年前
pair.h
[libc++] Remove __is_replaceable emulation (#167355) The Trivial Relocation feature has been removed from the C++26 working draft. Based on discussions in Kona, it is unlikely that the "replaceable" type concept will come back in the C++29 time frame. Since we don't have a use for the type trait in the library at the moment, remove the code associated to it. If we end up needing something like it in the future, we can always add it back.
8 个月前
piecewise_construct.h
[libc++] Remove _LIBCPP_TEMPLATE_VIS (#134885) The need for _LIBCPP_TEMPLATE_VIS has been removed in #133233.
1 年前
priority_tag.h
[libc++] Granularize <cstddef> includes (#108696)
1 年前
private_constructor_tag.h
[libc++] Adds a global private constructor tag. (#87920) This removes the similar tags used in the chrono tzdb implementation. Fixes: https://github.com/llvm/llvm-project/issues/85432
2 年前
rel_ops.h
[libc++] Deprecates rel_ops. (#91642) These operators were deprecated in P0768R1 Library Support for the Spaceship (Comparison) Operator This was discovered while investigating the paper's implementation status.
2 年前
scope_guard.h
[libc++] Use std::__{scope,exception}_guard throughout the code base (#161322) This simplifies the code quite a bit and seems to improve code size slightly in some cases.
9 个月前
small_buffer.h
[libc++] Pass type information down to __libcpp_allocate (#118837) Currently, places where we call __libcpp_allocate must drop type information on the ground even when they actually have such information available. That is unfortunate since some toolchains and system allocators are able to provide improved security when they know what type is being allocated. This is the purpose of http://wg21.link/p2719, where we introduce a new variant of operator new which takes a type in its interface. A different but related issue is that std::allocator does not honor any in-class T::operator new since it is specified to call the global ::operator new instead. This patch closes the gap to make it trivial for implementations that provide typed memory allocators to actually benefit from that information in more contexts, and also makes libc++ forward-compatible with future proposals that would fix the existing defects in std::allocator. It also makes the internal allocation API higher level by operating on objects instead of operating on bytes of memory. Since this is a widely-used function and making this a template could have an impact on debug info sizes, I tried minimizing the number of templated layers by removing __do_deallocate_handle_size, which was easy to replace with a macro (and IMO this leads to cleaner code).
1 年前
swap.h
[libc++] Remove a few unused includes in <utility> headers (#129674)
1 年前
to_underlying.h
[libc++] Use __underlying_type directly in underyling_type_t (#135423) This avoids instantiating multiple classes, reducing compile times. This patch also introduces __underyling_type_t for internal use, similar to other type traits.
1 年前
try_key_extraction.h
Reapply "[libc++] Refactor key extraction for __hash_table and __tree (#154512)" (#155565) The original PR has been reverted because of an LLDB test failure. This patch now works around the test failure by simply allowing the new symbols to show up in a stack trace. This reverts commit 72c04bb882ad70230bce309c3013d9cc2c99e9a7. Original commit message: This patch replaces __can_extract_key with an overload set to try to extract the key. This simplifies the code, since we don't need to have separate overload sets for the unordered and associative containers. It also allows extending the set of extraction cases more easily, since we have a single place to define how the key is extracted.
11 个月前
unreachable.h
[libc++][NFC] Replace _LIBCPP_NORETURN and TEST_NORETURN with [[noreturn]] (#80455) [[__noreturn__]] is now always available, so we can simply use the attribute directly instead of through a macro.
1 年前