Commit Graph

26 Commits

Author SHA1 Message Date
Raul Tambre 98eb1457ff [libc++] Require concepts support for <numbers>
Similar to <concepts>, we need to protect the header and test against
inclusion and being run if concepts aren't supported by the compiler.

Differential Revision: https://reviews.llvm.org/D82171
2020-06-19 10:49:44 -04:00
Raul Tambre 4f6c4b473c [libc++] Implement <numbers>
Summary: Constants have 33 significant decimal digits for IEEE 754 128-bit floating-point numbers.

Reviewers: ldionne, #libc, EricWF, zoecarver, curdeius

Reviewed By: ldionne, #libc, curdeius

Differential Revision: https://reviews.llvm.org/D77505
2020-06-19 14:25:02 +05:30
Louis Dionne 77b9abfc8e [libc++] Complete overhaul of constexpr support in std::array
This commit adds missing support for constexpr in std::array under all
standard modes up to and including C++20. It also transforms the <array>
tests to check for constexpr-friendliness under the right standard modes.

Fixes https://llvm.org/PR40124
Fixes rdar://57522096
Supersedes https://reviews.llvm.org/D60666

Differential Revision: https://reviews.llvm.org/D80452
2020-05-28 12:31:06 -04:00
Marek Kurdej 174322c273 [libc++] Mark __cpp_lib_hardware_interference_size as unimplemented. This fxes bug PR41423.
Summary:
As described in the bug report:
The commit a8b9f59e8caf378d56e8bfcecdb22184cdabf42d "Implement feature test macros using a script" added test features macros for libc++. Among others, it added `__cpp_lib_hardware_interference_size`. However, there is nothing like std::hardware_constructive_interference_size nor std::hardware_destructive_interference_size, that should be in header <new>.

* https://bugs.llvm.org/show_bug.cgi?id=41423

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D80431
2020-05-23 14:33:50 +02:00
Michael Schellenberger Costa 6d2599e4f7 [libcxx][span] Implement P1976R2
This resolves the NB comment about the construction of a fixed-size span
from a dynamic range.

Differential Revision: https://reviews.llvm.org/D74577
2020-05-13 09:52:47 -04:00
Marek Kurdej 3e895085de [libc++][P1115][C++20] Improving the Return Value of Erase-Like Algorithms II: Free erase/erase if.
Summary:
This patch adds return type to std::erase and std::erase_if functions.

Also:
* Update __cpp_lib_erase_if to 202002L.
* Fix synopsis in unordered_map.
* Fix generate_feature_test_macro_components.py script.

Reviewers: EricWF, mclow.lists, ldionne, #libc

Reviewed By: ldionne, #libc

Subscribers: broadwaylamb, zoecarver, dexonsmith, ldionne, libcxx-commits

Tags: #libc

Differential Revision: https://reviews.llvm.org/D75905
2020-05-02 14:04:50 +02:00
Marek Kurdej 05343588e3 [libc++] [P0646] Add feature-test macro for __cpp_lib_list_remove_return_type.
Summary: The return type modification has already been implemented in rL364840 and rL365290.

Reviewers: ldionne, mclow.lists, EricWF, #libc!

Reviewed By: ldionne

Subscribers: christof, dexonsmith, libcxx-commits

Tags: #libc

Differential Revision: https://reviews.llvm.org/D70275
2020-03-12 11:06:49 +01:00
Marek Kurdej e93e58c6c4 Reland [libc++] [P0325] Implement to_array from LFTS with updates.
Fixed expected errors and notes.

Summary:
This patch implements https://wg21.link/P0325.

Reviewers: EricWF, mclow.lists, ldionne, lichray

Reviewed By: ldionne, lichray

Subscribers: lichray, dexonsmith, zoecarver, christof, ldionne, libcxx-commits

Tags: #libc

Differential Revision: https://reviews.llvm.org/D69882
2020-01-31 11:47:18 +01:00
Marek Kurdej 5e7017273f Revert "[libc++] [P0325] Implement to_array from LFTS with updates."
This reverts commit 86aae78268.

A test is failing on "Release" build without assertions enabled (Fedora 31 on x86_64).
2020-01-31 09:45:50 +01:00
Marek Kurdej 86aae78268 [libc++] [P0325] Implement to_array from LFTS with updates.
Summary:
This patch implements https://wg21.link/P0325.
Please mind that at it is my first contribution to libc++, so I may have forgotten to abide to some conventions.

Reviewers: EricWF, mclow.lists, ldionne, lichray

Reviewed By: ldionne, lichray

Subscribers: lichray, dexonsmith, zoecarver, christof, ldionne, libcxx-commits

Tags: #libc

Differential Revision: https://reviews.llvm.org/D69882
2020-01-30 13:38:37 +01:00
Louis Dionne 8b77a3a0f4 [libc++] [P1612] Add missing feature-test macro __cpp_lib_endian.
Thanks to Marek Kurdej for the patch.

Differential Revision: https://reviews.llvm.org/D70221
2019-11-14 08:55:19 -05:00
Eric Fiselier ae02e89448 P0722R3: Implement library support for destroying delete
Summary:
This provides the `std::destroying_delete_t` declaration in C++2a and after. (Even when the compiler doesn't support the language feature).

However, the feature test macro `__cpp_lib_destroying_delete` is only defined when we have both language support and  C++2a.


Reviewers: ldionne, ckennelly, serge-sans-paille, EricWF

Reviewed By: EricWF

Subscribers: dexonsmith, riccibruno, christof, jwakely, jdoerfert, mclow.lists, ldionne, libcxx-commits

Differential Revision: https://reviews.llvm.org/D55840

llvm-svn: 361572
2019-05-23 23:46:44 +00:00
Marshall Clow d3d0ecbfd5 Implement midpoint for floating point types. Reviewed as https://reviews.llvm.org/D61014.
llvm-svn: 359184
2019-04-25 12:11:43 +00:00
Eric Fiselier 2fc5a786be Add std::is_constant_evaluated.
Clang recently added __builtin_is_constant_evaluated() and GCC 9.0
has it as well.

This patch adds support for it in libc++.

llvm-svn: 359119
2019-04-24 17:54:25 +00:00
Chandler Carruth 57b08b0944 Update more file headers across all of the LLVM projects in the monorepo
to reflect the new license. These used slightly different spellings that
defeated my regular expressions.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351648
2019-01-19 10:56:40 +00:00
Eric Fiselier 05019eb79f Fix feature test macros for atomics/mutexes without threading
llvm-svn: 351291
2019-01-16 02:10:28 +00:00
Eric Fiselier 32784a740a Implement feature test macros using a script.
Summary:
This patch implements all the feature test macros libc++ currently supports, as specified by the standard or cppreference prior to C++2a.

The tests and `<version>` header are generated using a script. The script contains a table of each feature test macro, the headers it should be accessible from, and its values of each dialect of C++.
When a new feature test macro is added or needed, the table should be updated and the script re-run.



Reviewers: mclow.lists, jfb, serge-sans-paille

Reviewed By: mclow.lists

Subscribers: arphaman, jfb, ldionne, libcxx-commits

Differential Revision: https://reviews.llvm.org/D56750

llvm-svn: 351286
2019-01-16 01:37:43 +00:00
Marshall Clow cac3d118ae When resolving a merge conflict, I put something inside an #ifdef. Fixed.
llvm-svn: 349181
2018-12-14 19:25:22 +00:00
Marshall Clow f60c63c090 Implement P1209 - Adopt Consistent Container Erasure from Library Fundamentals 2 for C++20. Reviewed as https://reviews.llvm.org/D55532
llvm-svn: 349178
2018-12-14 18:49:35 +00:00
Marshall Clow 7dad0bd68b Second part of P0482 - char8_t. Reviewed as https://reviews.llvm.org/D55308
llvm-svn: 348828
2018-12-11 04:35:44 +00:00
Erik Pilkington 5c4e07ae5c Second half of C++17's splicing maps and sets
This commit adds a merge member function to all the map and set containers,
which splices nodes from the source container. This completes support for
P0083r3.

Differential revision: https://reviews.llvm.org/D48896

llvm-svn: 345744
2018-10-31 17:31:35 +00:00
Marshall Clow 2d7bde547f Update commnents to reflect the changes for LWG#3127. NFC
llvm-svn: 344953
2018-10-22 20:50:06 +00:00
Marshall Clow 05fe329687 Update commnents to reflect the changes for LWG#3122. NFC
llvm-svn: 344950
2018-10-22 20:44:37 +00:00
Marshall Clow f56972e224 Implement the infrastructure for feature-test macros. Very few actual feature test macros, though. Reviewed as: https://reviews.llvm.org/D51955
llvm-svn: 342073
2018-09-12 19:41:40 +00:00
Marshall Clow 48e5b8b1a4 Update the synopsis for <version>. NFC
llvm-svn: 341990
2018-09-11 20:51:54 +00:00
Marshall Clow 082229eb0f Implement P0754R2: The <version> header.
llvm-svn: 329075
2018-04-03 15:48:24 +00:00