13 Commits

Author SHA1 Message Date
Nikolas Klauser
1ee41b4153 [libc++][NFC] Update the remaining old license headers 2023-12-01 11:29:43 +01:00
Mark de Wever
92fc93e112 [libc++] Qualifies intmax_t and uintmax_t.
This has been done using the following command

  find libcxx/test -type f -exec perl -pi -e 's|^([^/]+?)((?<!::)(?<!::u)u?intmax_t)|\1std::\2|' \{} \;

The std module doesn't export declarations in the global namespaace.
This is a preparation for that module.

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D146821
2023-04-07 17:45:03 +02:00
Mark de Wever
d59a43fe2a [libc++] Qualifies intptr_t and uintptr_t.
This has been done using the following command

  find libcxx/test -type f -exec perl -pi -e 's|^([^/]+?)((?<!::)(?<!::u)u?intptr_t)|\1std::\2|' \{} \;

The std module doesn't export declarations in the global namespaace.
This is a preparation for that module.

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D146643
2023-03-22 22:19:02 +01:00
Mark de Wever
d868135691 [libc++] Qualifies ptrdiff_t and max_align_t.
This has been done using the following commands
  find libcxx/test -type f -exec perl -pi -e 's|^([^/]+?)((?<!::)ptrdiff_t)|\1std::\2|' \{} \;
  find libcxx/test -type f -exec perl -pi -e 's|^([^/]+?)((?<!::)max_align_t)|\1std::\2|' \{} \;

The std module doesn't export declarations in the global namespaace.,
This is a preparation for that module.

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D146550
2023-03-22 17:27:57 +01:00
Mark de Wever
fb855eb941 [libc++] Qualifies size_t.
This has been done using the following command

  find libcxx/test -type f -exec perl -pi -e 's|^([^/]+?)((?<!::)size_t)|\1std::\2|' \{} \;

And manually removed some false positives in std/depr/depr.c.headers.

The `std` module doesn't export `::size_t`, this is a preparation for that module.

Reviewed By: ldionne, #libc, EricWF, philnik

Differential Revision: https://reviews.llvm.org/D146088
2023-03-21 17:41:36 +01:00
Mark de Wever
bd5d0fee9b [libc++] Qualifies uint32_t and friends.
This has been done using the following command
  find libcxx/test -type f -exec perl -pi -e 's|^([^/]+?)((?<!::)(?<!::u)u?int(_[a-z]+)?[0-9]{1,2}_t)|\1std::\2|' \{} \;

And manually removed some false positives in std/depr/depr.c.headers.

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D145880
2023-03-14 17:28:53 +01:00
Mark de Wever
da79d6e177 [libc++][test] Uses qualified std::uint32_t.
The module std does not provide c-types in the global namespace. This
means all these types need to be fully qualified. This is a first step
to convert them by using sed.

Since this is an automated conversion other types like uint64_t are kept
as is.

Note that tests in the directory libcxx/test/std/depr/depr.c.headers
should not be converted automatically. This requires manual attention,
there some test require testing uint32_t in the global namespace. These
test should fail when using the std module, and pass when using the
std.compat module.

A similar issue occurs with atomic, atomic_uint32_t is specified as
  using atomic_uint32_t = atomic<uint32_t>; // freestanding
So here too we need to keep the name in the global namespace in the
tests.

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D145520
2023-03-08 17:05:16 +01:00
Nikolas Klauser
86aac87fe4 [libc++] Granularize <bit> and remove <__bits>
Reviewed By: Mordante, #libc

Spies: libcxx-commits

Differential Revision: https://reviews.llvm.org/D141225
2023-01-08 17:01:21 +01:00
Arthur O'Dwyer
3347e7d40f [libc++] [LWG3656] Update the return type of std::bit_width.
Fixes LWG3656, "Inconsistent bit operations returning a count".
https://cplusplus.github.io/LWG/issue3656

The fix has been approved for C++23 and left to vendors' discretion
in C++20 (but it sounds like everyone's on the same page that
of course it should be DR'ed back to C++20 too).

Differential Revision: https://reviews.llvm.org/D120444
2022-03-04 17:31:09 -05:00
Mark de Wever
9027887e23 [libc++][nfc] Add TEST_HAS_NO_CHAR8_T.
This avoids using an libc++ internal macro in our tests. This version
doesn't depend on the internal macro but redefines it.

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D119460
2022-02-11 17:37:05 +01:00
Mark de Wever
8f972cb0fd [libc++][nfc] Add TEST_HAS_NO_INT128.
Avoid using the libc++ internal `_LIBCPP_HAS_NO_INT128` in our tests.

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D117992
2022-01-27 17:31:27 +01:00
Arthur O'Dwyer
e130fbe24e [libc++] Some fixes to the <bit> utilities.
Fix __bitop_unsigned_integer and rename to __libcpp_is_unsigned_integer.
There are only five unsigned integer types, so we should just list them out.
Also provide `__libcpp_is_signed_integer`, even though the Standard doesn't
consume that trait anywhere yet.

Notice that `concept uniform_random_bit_generator` is specifically specified
to rely on `concept unsigned_integral` and *not* `__is_unsigned_integer`.
Instantiating `std::ranges::sample` with a type `U` satisfying
`uniform_random_bit_generator` where `unsigned_integral<U::result_type>`
and not `__is_unsigned_integer<U::result_type>` is simply IFNDR.

Orthogonally, fix an undefined behavior in std::countr_zero(__uint128_t).

Orthogonally, improve tests for the <bit> manipulation functions.
It was these new tests that detected the bug in countr_zero.

Differential Revision: https://reviews.llvm.org/D102328
2021-05-18 19:56:30 -04:00
Mark de Wever
1a036e9cc8 [libcxx] Implement P1956 rename low-level bit functions
Implements P1956: On the names of low-level bit manipulation functions.

Users may use older versions of libc++ or other standard libraries with the old names. In order to keep compatibility the old functions are kept, but marked as deprecated.

The patch also adds a new config macro `_LIBCPP_DEPRECATED_MSG`. Do you prefer a this is a separate patch?

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D90551
2020-11-24 17:37:06 +01:00