Commit Graph

17 Commits

Author SHA1 Message Date
Mark de Wever 01ace074fc [libc++] Implements ranges::enable_borrowed_range
This is the initial patch to implement ranges in libc++.

Implements parts of:
- P0896R4 One Ranges Proposal
- P1870 forwarding-range is too subtle
- LWG3379 in several library names is misleading

Reviewed By: ldionne, #libc, cjdb, zoecarver, Quuxplusone

Differential Revision: https://reviews.llvm.org/D90999
2021-04-18 13:35:08 +02:00
Christopher Di Bella f280505aa0 [libcxx] adds `std::indirectly_readable_traits` to <iterator>
Implements parts of:
    * P0896R4 The One Ranges Proposal
    * LWG3446 `indirectly_readable_traits` ambiguity for types with both `value_type` and `element_type`

Depends on D99141.

Differential Revision: https://reviews.llvm.org/D99461
2021-04-15 23:59:02 +00:00
Christopher Di Bella 920c0f7e09 [libcxx] adds __cpp_lib_concepts feature-test macro
Also adjusts C++20 status paper to indicate full concepts support.

Depends on D96477, D99817.

Differential Revision: https://reviews.llvm.org/D99805
2021-04-07 16:14:45 +00:00
Christopher Di Bella cedd07df51 [libcxx] fixes `common_reference` requirement for `swappable_with`
LWG3175 identifies that the `common_reference` requirement for
`swappable_with` is over-constraining and doesn't need to concern itself
with cv- or reference qualifiers.

Differential Revision: https://reviews.llvm.org/D99817
2021-04-07 05:51:36 +00:00
zoecarver 84a50f5911 [libc++] Add bind_front function (P0356R5).
Implementes [[ http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0356r5.html | P0356R5 ]]. Adds `bind_front` to `functional`.

Reviewed By: ldionne, #libc, Quuxplusone

Differential Revision: https://reviews.llvm.org/D60368
2021-03-02 16:18:06 -08:00
Arthur O'Dwyer eec04092d6 [libc++] [LWG2993] reference_wrapper<T> conversion from U&&
Implement the resolution of LWG2993. Replace a deleted constructor
with a constructor that SFINAEs away in appropriate circumstances.
Also, now that the constructor is templated, we must have an
explicit deduction guide to make CTAD work.

Some tests have been merged in from Agustín Bergé's D40259.

Differential Revision: https://reviews.llvm.org/D92725
2021-02-09 15:50:25 -05:00
Arthur O'Dwyer 493f140792 [libc++] [P0879] constexpr std::sort
This completes libc++'s implementation of
P0879 "Constexpr for swap and swap related functions."
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0879r0.html

For the feature-macro adjustment, see
https://cplusplus.github.io/LWG/issue3256

Differential Revision: https://reviews.llvm.org/D93661
2021-02-03 18:57:05 -05:00
Mark de Wever 3ffc53ba16 [libc++] Implements concept default_initializable.
Implements:
- LWG3149 DefaultConstructible should require default initialization

Implements parts of:
 - P0898R3 Standard Library Concepts
 - P1754 Rename concepts to standard_case for C++20, while we still can

Depends on D91986

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D93461
2021-02-01 19:13:24 +01:00
Marek Kurdej e4ed349c76 [libc++] [P1164] [C++20] Make fs::create_directory() error if there is already a non-directory.
Also mark LWG2935 and LWG3079 as complete.

Applied retroactively to previous standards too, as it's a DR.

* https://wg21.link/P1164
* https://wg21.link/lwg2935
* https://wg21.link/lwg3079

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D92769
2020-12-10 08:40:27 +01:00
Marek Kurdej 877170f3eb [libc++] [LWG3221] Add tests for wrapping operator+(year_month, months).
The behaviour didn't change since commit 5b08c1742a (Recommit <chrono> changes with a couple xtra tests marked to fail on apple's clang.)

* http://wg21.link/lwg3221

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D92730
2020-12-08 18:08:04 +01:00
Marek Kurdej ba3adfad6e [libc++] Mark LWG3200 as Nothing To Do. NFC.
This is only a wording change, because it is currently impossible to constrain the overload set on whether the type is complete or not.
2020-12-08 09:00:45 +01:00
Marek Kurdej bf8683adfa [libc++] [docs] Mark LWG3055 as complete. Use string_view instead of string in path::operator+=(ECharT).
The issue didn't change the behaviour which is tested in libcxx/test/std/input.output/filesystems/class.path/path.member/path.concat.pass.cpp.

The change to use string_view instead of string is not strictly necessary.

<filesystem> was added in commit 998a5c8831 (Implement <filesystem>).

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D92731
2020-12-07 20:18:09 +01:00
Marek Kurdej f6326736ba [libc++] [LWG3374] Mark `to_address(const Ptr& p)` overload `constexpr`.
Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D92659
2020-12-06 15:26:26 +01:00
Mark de Wever ce6269f9ba [NFC][libc++] Update C++20 issues status.
Properly mark LWG1203 as completed and move the version number to the
version column.
2020-12-05 16:36:19 +01:00
Marek Kurdej c36801ecd5 [libc++] [docs] Add Version column to issues tables on status pages. 2020-12-04 18:44:35 +01:00
Mark de Wever 83d26603e0 [NFC][libc++] Mark LWG3296 as complete.
I recalled Marshall had already made this change. The change is
committed in e3f89a989a.
2020-11-26 10:39:44 +01:00
Marek Kurdej a5f98b5419 [libc++] [docs] Migrate C++ status pages to RestructuredText (RST).
Currently, papers and issues are in separate .csv files (that is easier to update), but I can put them inline.Transforming current html tables into rst are done by the script (attached to the patch FYI but I'll remove it before committing).
I'll of course update RST files before committing to match any modifications that may happen in master branch.

This patch moves the status pages in www/ to RST format in docs/.

It also does some other minor changes: fix copyright year and broken comment end, adds substitutions for coherence (and add colors, but that can be removed easily).
It adds as well redirects from old to new status pages.

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D92076
2020-11-26 10:01:09 +01:00