12 Commits

Author SHA1 Message Date
Louis Dionne
9783f28cbb
[libc++] Format the code base (#74334)
This patch runs clang-format on all of libcxx/include and libcxx/src, in
accordance with the RFC discussed at [1]. Follow-up patches will format
the benchmarks, the test suite and remaining parts of the code. I'm
splitting this one into its own patch so the diff is a bit easier to
review.

This patch was generated with:

   find libcxx/include libcxx/src -type f \
      | grep -v 'module.modulemap.in' \
      | grep -v 'CMakeLists.txt' \
      | grep -v 'README.txt' \
      | grep -v 'libcxx.imp' \
      | grep -v '__config_site.in' \
      | xargs clang-format -i

A Git merge driver is available in libcxx/utils/clang-format-merge-driver.sh
to help resolve merge and rebase issues across these formatting changes.

[1]: https://discourse.llvm.org/t/rfc-clang-formatting-all-of-libc-once-and-for-all
2023-12-18 14:01:33 -05:00
Louis Dionne
02540b2f6d
[libc++] Make sure ranges algorithms and views handle boolean-testable correctly (#69378)
Before this patch, we would fail to implicitly convert the result of
predicates to bool, which means we'd potentially perform a copy or move
construction of the boolean-testable, which isn't allowed. The same
holds true for comparing iterators against sentinels, which is allowed
to return a boolean-testable type.

We already had tests aiming to ensure correct handling of these types,
but they failed to provide appropriate coverage in several cases due to
guaranteed RVO. This patch fixes the tests, adds tests for missing
algorithms and views, and fixes the actual problems in the code.

Fixes #69074
2023-11-06 21:19:49 -10:00
Nikolas Klauser
83ce139721 [libc++] Add hide_from_abi check for classes
We already have a clang-tidy check for making sure that `_LIBCPP_HIDE_FROM_ABI` is on free functions. This patch extends this to class members. The places where we don't check for `_LIBCPP_HIDE_FROM_ABI` are classes for which we have an instantiation in the library.

Reviewed By: ldionne, Mordante, #libc

Spies: jplehr, mikhail.ramalho, sstefan1, libcxx-commits, krytarowski, miyuki, smeenai

Differential Revision: https://reviews.llvm.org/D142332
2023-04-16 15:23:23 +02:00
Nikolas Klauser
173476ea04 [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
2023-03-31 02:22:48 +02:00
Nikolas Klauser
e65cd4ce83 [libc++] Enable -Wunused-template
Clang wants to enable this flag by default, but libc++ isn't working with it yet.

Reviewed By: Mordante, #libc, #libc_abi, EricWF

Spies: libcxx-commits, arichardson

Differential Revision: https://reviews.llvm.org/D144667
2023-03-08 19:26:49 +01:00
Nikolas Klauser
b4ecfd3c46 [libc++] Forward to std::memcmp for trivially comparable types in equal
Reviewed By: #libc, ldionne

Spies: ldionne, Mordante, libcxx-commits

Differential Revision: https://reviews.llvm.org/D139554
2023-02-21 17:11:21 +01:00
Nikolas Klauser
4f15267d3d [libc++][NFC] Replace _LIBCPP_STD_VER > x with _LIBCPP_STD_VER >= x
This change is almost fully mechanical. The only interesting change is in `generate_feature_test_macro_components.py` to generate `_LIBCPP_STD_VER >=` instead. To avoid churn in the git-blame this commit should be added to the `.git-blame-ignore-revs` once committed.

Reviewed By: ldionne, var-const, #libc

Spies: jloser, libcxx-commits, arichardson, arphaman, wenlei

Differential Revision: https://reviews.llvm.org/D143962
2023-02-15 16:52:25 +01:00
Louis Dionne
b8cb1dc9ea [libc++] Make <ranges> non-experimental
When we ship LLVM 16, <ranges> won't be considered experimental anymore.
We might as well do this sooner rather than later.

Differential Revision: https://reviews.llvm.org/D132151
2022-08-18 16:59:58 -04:00
Konstantin Varlamov
db7d795978 [libc++][ranges] Implement std::ranges::partial_sort_copy.
Differential Revision: https://reviews.llvm.org/D130532
2022-07-30 02:42:18 -07:00
Konstantin Varlamov
8ed702b83f [libc++][ranges] Implement ranges::{,stable_}partition.
Differential Revision: https://reviews.llvm.org/D129624
2022-07-18 21:06:17 -07:00
Hui Xie
1cdec6c96e [libcxx][ranges] implement std::ranges::set_difference
implement `std::ranges::set_difference`
reused classic std::set_difference
added unit tests

Differential Revision: https://reviews.llvm.org/D128983
2022-07-08 13:26:23 +01:00
Konstantin Varlamov
ff3989e6ae [libc++][ranges] Implement ranges::sort.
Differential Revision: https://reviews.llvm.org/D127557
2022-06-16 15:21:06 -07:00