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llvm-project/libcxx/docs/Status/Cxx23Papers.csv

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[libc++][ranges][NFC] Revamp the Ranges status page Focus on the not-yet-implemented features: remove most details about the already-implemented C++20 stuff, list out the major C++23 additions. Differential Revision: https://reviews.llvm.org/D136657
2022-11-29 14:07:44 -08:00
"Paper #","Group","Paper Name","Meeting","Status","First released version","Labels"
[libc++] [docs] Add C++2b (to be C++23) status page. Also: * Fix header line in all status tables. * Use C++20 instead of C++2a. Reviewed By: ldionne, #libc, miscco Differential Revision: https://reviews.llvm.org/D92306
2020-12-03 09:17:14 +01:00
"`P0881R7 <https://wg21.link/P0881R7>`__","LWG","A Proposal to add stacktrace library","Autumn 2020","",""
[libc++][P0943] Add stdatomic.h header. * https://wg21.link/P0943 * https://eel.is/c++draft/stdatomic.h.syn This is a re-application of 5d1c1a24, which was reverted in 987c7f407 because it broke the LLDB build. Co-authored-by: Marek Kurdej <marek.kurdej@gmail.com> Differential Revision: https://reviews.llvm.org/D97044
2022-04-11 10:42:45 -04:00
"`P0943R6 <https://wg21.link/P0943R6>`__","LWG","Support C atomics in C++","Autumn 2020","|Complete|","15.0"
[libc++] [C++2b] [P1048] Add is_scoped_enum and is_scoped_enum_v. * https://wg21.link/p1048 Reviewed By: ldionne, #libc Differential Revision: https://reviews.llvm.org/D94409
2021-01-12 17:06:58 +01:00
"`P1048R1 <https://wg21.link/P1048R1>`__","LWG","A proposal for a type trait to detect scoped enumerations","Autumn 2020","|Complete|","12.0"
[NFC][libc++] Update the implementation status. During the review of https://reviews.llvm.org/D93912 we failed to notice the implementation status wasn't updated. This rectifies the issue.
2021-01-22 20:24:33 +01:00
"`P1679R3 <https://wg21.link/P1679R3>`__","LWG","string contains function","Autumn 2020","|Complete|","12.0"
[libc++][NFC] Improve consistency in status csv files
2023-01-11 10:30:33 -05:00
"","","","","","",""
[libc++] [C++2b] [P1682] Add to_underlying. * https://wg21.link/P1682 Reviewed By: ldionne, Mordante, #libc Differential Revision: https://reviews.llvm.org/D97365
2021-03-05 09:19:39 +01:00
"`P1682R3 <https://wg21.link/P1682R3>`__","LWG","std::to_underlying for enumerations","February 2021","|Complete|","13.0"
[libc++][ranges][NFC] Revamp the Ranges status page Focus on the not-yet-implemented features: remove most details about the already-implemented C++20 stuff, list out the major C++23 additions. Differential Revision: https://reviews.llvm.org/D136657
2022-11-29 14:07:44 -08:00
"`P2017R1 <https://wg21.link/P2017R1>`__","LWG","Conditionally borrowed ranges","February 2021","","","|ranges|"
[libc++] [docs] [C++2b] Update status page with issues (and forgotten papers) adopted in November 2020 and February 2021 virtual meetings. Sources: * https://github.com/cplusplus/draft/pull/4380 (November 2020) * https://github.com/cplusplus/draft/pull/4523 (February 2021) * https://github.com/cplusplus/draft/issues?q=is%3Aissue+LWG+Motion
2021-03-01 10:31:29 +01:00
"`P2160R1 <https://wg21.link/P2160R1>`__","LWG","Locks lock lockables","February 2021","",""
[libc++] [C++2b] [P2162] Allow inheritance from std::variant. This patch changes the variant even in pre-C++2b. It should not break anything, only allow use cases that didn't work previously. Notes: `__as_variant` is used in `__visitation::__variant::__visit_alt`, but I haven't used it in `__visitation::__variant::__visit_alt_at`. That's because it is used only in `__visit_value_at`, which in turn is always used on variant specializations (that's in comparison operators). * https://wg21.link/P2162 Reviewed By: ldionne, #libc, Quuxplusone Differential Revision: https://reviews.llvm.org/D97394
2021-03-25 18:09:11 +01:00
"`P2162R2 <https://wg21.link/P2162R2>`__","LWG","Inheriting from std::variant","February 2021","|Complete|","13.0"
[libc++] [docs] [C++2b] Update status page with papers adopted in February 2021 virtual meeting.
2021-02-24 09:40:33 +01:00
"`P2212R2 <https://wg21.link/P2212R2>`__","LWG","Relax Requirements for time_point::clock","February 2021","",""
[libc++][ranges][NFC] Revamp the Ranges status page Focus on the not-yet-implemented features: remove most details about the already-implemented C++20 stuff, list out the major C++23 additions. Differential Revision: https://reviews.llvm.org/D136657
2022-11-29 14:07:44 -08:00
"`P2259R1 <https://wg21.link/P2259R1>`__","LWG","Repairing input range adaptors and counted_iterator","February 2021","","","|ranges|"
[libc++][NFC] Improve consistency in status csv files
2023-01-11 10:30:33 -05:00
"","","","","","",""
[libc++] Implement P0401R6 (allocate_at_least) Reviewed By: ldionne, var-const, #libc Spies: mgorny, libcxx-commits, arichardson Differential Revision: https://reviews.llvm.org/D122877
2022-04-09 09:41:19 +02:00
"`P0401R6 <https://wg21.link/P0401R6>`__","LWG","Providing size feedback in the Allocator interface","June 2021","|Complete|","15.0"
Add list of LWG papers accepted by WG21 during the June 2021 plenary Reviewed By: #libc, Quuxplusone, ldionne Differential Revision: https://reviews.llvm.org/D105103
2021-07-01 04:26:55 +00:00
"`P0448R4 <https://wg21.link/P0448R4>`__","LWG","A strstream replacement using span<charT> as buffer","June 2021","",""
"`P1132R8 <https://wg21.link/P1132R8>`__","LWG","out_ptr - a scalable output pointer abstraction","June 2021","",""
[libc++] Implement P1328R1 constexpr std::type_info::operator== Differential Revision: https://reviews.llvm.org/D143447
2023-02-06 17:08:19 -08:00
"`P1328R1 <https://wg21.link/P1328R1>`__","LWG","Making std::type_info::operator== constexpr","June 2021","|Complete|","17.0"
[libc++][ranges][NFC] Revamp the Ranges status page Focus on the not-yet-implemented features: remove most details about the already-implemented C++20 stuff, list out the major C++23 additions. Differential Revision: https://reviews.llvm.org/D136657
2022-11-29 14:07:44 -08:00
"`P1425R4 <https://wg21.link/P1425R4>`__","LWG","Iterators pair constructors for stack and queue","June 2021","|Complete|","14.0","|ranges|"
[libc++] [P1518R2] Better CTAD behavior for containers with allocators. P1518 does the following in C++23 but we'll just do it in C++17 as well: - Stop requiring `Alloc` to be an allocator on some container-adaptor deduction guides - Stop deducing from `Allocator` on some sequence container constructors - Stop deducing from `Allocator` on some other container constructors (libc++ already did this) The affected constructors are the "allocator-extended" versions of constructors where the non-allocator arguments are already sufficient to deduce the allocator type. For example, std::pmr::vector<int> v1; std::vector v2(v1, std::pmr::new_delete_resource()); std::stack s2(v1, std::pmr::new_delete_resource()); Differential Revision: https://reviews.llvm.org/D97742
2021-03-01 17:08:24 -05:00
"`P1518R2 <https://wg21.link/P1518R2>`__","LWG","Stop overconstraining allocators in container deduction guides","June 2021","|Complete|","13.0"
[libc++][ranges][NFC] Revamp the Ranges status page Focus on the not-yet-implemented features: remove most details about the already-implemented C++20 stuff, list out the major C++23 additions. Differential Revision: https://reviews.llvm.org/D136657
2022-11-29 14:07:44 -08:00
"`P1659R3 <https://wg21.link/P1659R3>`__","LWG","starts_with and ends_with","June 2021","","","|ranges|"
[libc++] Implement P1951, default arguments for pair's forwarding constructor Differential Revision: https://reviews.llvm.org/D109066
2021-08-31 18:13:33 -04:00
"`P1951R1 <https://wg21.link/P1951R1>`__","LWG","Default Arguments for pair Forwarding Constructor","June 2021","|Complete|","14.0"
[libc++][ranges][NFC] Revamp the Ranges status page Focus on the not-yet-implemented features: remove most details about the already-implemented C++20 stuff, list out the major C++23 additions. Differential Revision: https://reviews.llvm.org/D136657
2022-11-29 14:07:44 -08:00
"`P1989R2 <https://wg21.link/P1989R2>`__","LWG","Range constructor for std::string_view","June 2021","|Complete|","14.0","|ranges|"
[libc++] Implement P2136R3 std::invoke_r Differential Revision: https://reviews.llvm.org/D143610
2023-02-07 09:20:35 -08:00
"`P2136R3 <https://wg21.link/P2136R3>`__","LWG","invoke_r","June 2021","|Complete|","17.0"
[libc++] [c++2b] [P2166] Prohibit string and string_view construction from nullptr. * https://wg21.link/P2166 Reviewed By: ldionne, #libc Differential Revision: https://reviews.llvm.org/D106801
2021-07-27 16:16:21 +02:00
"`P2166R1 <https://wg21.link/P2166R1>`__","LWG","A Proposal to Prohibit std::basic_string and std::basic_string_view construction from nullptr","June 2021","|Complete|","13.0"
[libc++][NFC] Improve consistency in status csv files
2023-01-11 10:30:33 -05:00
"","","","","","",""
[libc++] Include revision numbers in the paper status lists Several of our C++20 and C++2b papers were missing the actual revision number that was voted in to the Standard. The revision number is quite important because in a few cases, a paper has a revision *after* the one that is voted into the Standard, which isn't voted into the Standard. Hence, if we simply followed the wg21.link blindly and implemented that, we'd end up implementing the latest revision of the paper, which might not have been voted. As a fly-by fix, I found out that P1664 had been withdrawn from the straw polls and had never been voted into the Standard. This commit removes that entry from our list. Differential Revision: https://reviews.llvm.org/D112339
2021-10-22 15:08:46 -04:00
"`P0288R9 <https://wg21.link/P0288R9>`__","LWG","``any_invocable``","October 2021","",""
[libc++] Implement P0798R8 (Monadic operations for std::optional) Implement P0798R8 Reviewed By: #libc, ldionne, Quuxplusone Spies: tcanens, Quuxplusone, ldionne, Wmbat, arichardson, Mordante, libcxx-commits Differential Revision: https://reviews.llvm.org/D113408
2021-12-15 20:54:24 +01:00
"`P0798R8 <https://wg21.link/P0798R8>`__","LWG","Monadic operations for ``std::optional``","October 2021","|Complete|","14.0"
[libc++] [ranges] Introduce _LIBCPP_AUTO_CAST(x) for auto(x). Clang is gaining `auto(x)` support in D113393; sadly there seems to be no feature-test macro for it. Zhihao is opening a core issue for that macro. Use `_LIBCPP_AUTO_CAST` where C++20 specifies we should use `auto(x)`; stop using `__decay_copy(x)` in those places. In fact, remove `__decay_copy` entirely. As of C++20, it's purely a paper specification tool signifying "Return just `x`, but it was perfect-forwarded, so we understand you're going to have to call its move-constructor sometimes." I believe there's no reason we'd ever need to do its operation explicitly in code. This heisenbugs away a test failure on MinGW; see D112214. Differential Revision: https://reviews.llvm.org/D115686
2021-12-13 19:21:38 -05:00
"`P0849R8 <https://wg21.link/P0849R8>`__","LWG","``auto(x)``: ``DECAY_COPY`` in the language","October 2021","|Complete|","14.0"
[libc++] Implement P1072R10 (std::basic_string::resize_and_overwrite) Reviewed By: Quuxplusone, #libc, Mordante Spies: mzeren-vmw, ckennelly, arichardson, ldionne, Mordante, libcxx-commits, Quuxplusone Differential Revision: https://reviews.llvm.org/D113013
2022-01-06 21:43:26 +01:00
"`P1072R10 <https://wg21.link/P1072R10>`__","LWG","``basic_string::resize_and_overwrite``","October 2021","|Complete|","14.0"
[libc++] Implement P1147R1 (Printing volatile T*) Differential Revision: https://reviews.llvm.org/D113482
2021-11-09 11:41:46 -05:00
"`P1147R1 <https://wg21.link/P1147R1>`__","LWG","Printing ``volatile`` Pointers","October 2021","|Complete|","14.0"
[libc++] Implement P1272R4 (std::byteswap) Implement P1274R4 Reviewed By: Quuxplusone, Mordante, #libc Spies: jloser, lebedev.ri, mgorny, libcxx-commits, arichardson Differential Revision: https://reviews.llvm.org/D114074
2021-11-22 00:22:55 +01:00
"`P1272R4 <https://wg21.link/P1272R4>`__","LWG","Byteswapping for fun&&nuf","October 2021","|Complete|","14.0"
[libc++] Include revision numbers in the paper status lists Several of our C++20 and C++2b papers were missing the actual revision number that was voted in to the Standard. The revision number is quite important because in a few cases, a paper has a revision *after* the one that is voted into the Standard, which isn't voted into the Standard. Hence, if we simply followed the wg21.link blindly and implemented that, we'd end up implementing the latest revision of the paper, which might not have been voted. As a fly-by fix, I found out that P1664 had been withdrawn from the straw polls and had never been voted into the Standard. This commit removes that entry from our list. Differential Revision: https://reviews.llvm.org/D112339
2021-10-22 15:08:46 -04:00
"`P1675R2 <https://wg21.link/P1675R2>`__","LWG","``rethrow_exception`` must be allowed to copy","October 2021","",""
"`P2077R3 <https://wg21.link/P2077R3>`__","LWG","Heterogeneous erasure overloads for associative containers","October 2021","",""
"`P2251R1 <https://wg21.link/P2251R1>`__","LWG","Require ``span`` & ``basic_string_view`` to be Trivially Copyable","October 2021","|Complete|","14.0"
"`P2301R1 <https://wg21.link/P2301R1>`__","LWG","Add a ``pmr`` alias for ``std::stacktrace``","October 2021","",""
[libc++][ranges][NFC] Revamp the Ranges status page Focus on the not-yet-implemented features: remove most details about the already-implemented C++20 stuff, list out the major C++23 additions. Differential Revision: https://reviews.llvm.org/D136657
2022-11-29 14:07:44 -08:00
"`P2321R2 <https://wg21.link/P2321R2>`__","LWG","``zip``","October 2021","|In Progress|","","|ranges|"
[libc++] Include revision numbers in the paper status lists Several of our C++20 and C++2b papers were missing the actual revision number that was voted in to the Standard. The revision number is quite important because in a few cases, a paper has a revision *after* the one that is voted into the Standard, which isn't voted into the Standard. Hence, if we simply followed the wg21.link blindly and implemented that, we'd end up implementing the latest revision of the paper, which might not have been voted. As a fly-by fix, I found out that P1664 had been withdrawn from the straw polls and had never been voted into the Standard. This commit removes that entry from our list. Differential Revision: https://reviews.llvm.org/D112339
2021-10-22 15:08:46 -04:00
"`P2340R1 <https://wg21.link/P2340R1>`__","LWG","Clarifying the status of the 'C headers'","October 2021","",""
"`P2393R1 <https://wg21.link/P2393R1>`__","LWG","Cleaning up ``integer``-class types","October 2021","",""
"`P2401R0 <https://wg21.link/P2401R0>`__","LWG","Add a conditional ``noexcept`` specification to ``std::exchange``","October 2021","|Complete|","14.0"
[libc++][NFC] Improve consistency in status csv files
2023-01-11 10:30:33 -05:00
"","","","","","",""
[libc++] Implement `std::expected` P0323R12 Implement `std::expected` https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p0323r12.html Added tests Differential Revision: https://reviews.llvm.org/D124516 address comment
2022-11-04 11:42:42 +00:00
"`P0323R12 <https://wg21.link/P0323R12>`__","LWG","``std::expected``","February 2022","|Complete|","16.0"
[libc++] Implement constexpr {isfinite, isinf, isnan, isnormal} This starts implementing P0533 Reviewed By: Mordante, #libc Spies: libcxx-commits Differential Revision: https://reviews.llvm.org/D140277
2022-12-19 00:02:44 +01:00
"`P0533R9 <https://wg21.link/P0533R9>`__","LWG","``constexpr`` for ``<cmath>`` and ``<cstdlib>``","February 2022","|In progress| [#note-P0533R9]_",""
[libc++] Implement P0627R6 (Function to mark unreachable code) Reviewed By: ldionne, Quuxplusone, #libc Spies: arichardson, mstorsjo, libcxx-commits, mgorny Differential Revision: https://reviews.llvm.org/D119152
2022-02-14 18:26:02 +01:00
"`P0627R6 <https://wg21.link/P0627R6>`__","LWG","Function to mark unreachable code","February 2022","|Complete|","15.0"
[libc++][ranges] Implement the changes to vector from P1206 (`ranges::to`): - add the `from_range_t` constructors and the related deduction guides; - add the `insert_range`/`assign_range`/etc. member functions. (Note: this patch is split from https://reviews.llvm.org/D142335) Differential Revision: https://reviews.llvm.org/D149826
2023-05-08 23:40:21 -07:00
"`P1206R7 <https://wg21.link/P1206R7>`__","LWG","``ranges::to``: A function to convert any range to a container","February 2022","|In Progress|","","|ranges|"
[libc++] Implement P1413R3 (Deprecate std::aligned_storage and std::aligned_union) There are no tests for the aliases because clang doesn't diagnose deprecated template aliases currently. Reviewed By: ldionne, #libc Spies: libcxx-commits Differential Revision: https://reviews.llvm.org/D127678
2022-12-11 02:10:31 +01:00
"`P1413R3 <https://wg21.link/P1413R3>`__","LWG","Deprecate ``std::aligned_storage`` and ``std::aligned_union``","February 2022","|Complete| [#note-P1413R3]_",""
[libc++][ranges][NFC] Revamp the Ranges status page Focus on the not-yet-implemented features: remove most details about the already-implemented C++20 stuff, list out the major C++23 additions. Differential Revision: https://reviews.llvm.org/D136657
2022-11-29 14:07:44 -08:00
"`P2255R2 <https://wg21.link/P2255R2>`__","LWG","A type trait to detect reference binding to temporary","February 2022","",""
[libc++] implement P1020R1 P1973R1 make_unique[shared]_for_overwrite Differential Revision: https://reviews.llvm.org/D140913
2023-01-03 18:51:34 +00:00
"`P2273R3 <https://wg21.link/P2273R3>`__","LWG","Making ``std::unique_ptr`` constexpr","February 2022","|Complete|","16.0"
[libc++][ranges][NFC] Revamp the Ranges status page Focus on the not-yet-implemented features: remove most details about the already-implemented C++20 stuff, list out the major C++23 additions. Differential Revision: https://reviews.llvm.org/D136657
2022-11-29 14:07:44 -08:00
"`P2387R3 <https://wg21.link/P2387R3>`__","LWG","Pipe support for user-defined range adaptors","February 2022","","","|ranges|"
"`P2440R1 <https://wg21.link/P2440R1>`__","LWG","``ranges::iota``, ``ranges::shift_left`` and ``ranges::shift_right``","February 2022","","","|ranges|"
"`P2441R2 <https://wg21.link/P2441R2>`__","LWG","``views::join_with``","February 2022","","","|ranges|"
"`P2442R1 <https://wg21.link/P2442R1>`__","LWG","Windowing range adaptors: ``views::chunk`` and ``views::slide``","February 2022","","","|ranges|"
"`P2443R1 <https://wg21.link/P2443R1>`__","LWG","``views::chunk_by``","February 2022","","","|ranges|"
[libc++][NFC] Improve consistency in status csv files
2023-01-11 10:30:33 -05:00
"","","","","","",""
[libc++][mdspan] Implement layout_right This commit implements layout_right in support of C++23 mdspan (https://wg21.link/p0009). layout_right is a layout mapping policy whose index mapping corresponds to the memory layout of multidimensional C-arrays, and is thus also referred to as the C-layout. Co-authored-by: Damien L-G <dalg24@gmail.com> Differential Revision: https://reviews.llvm.org/D151267
2023-06-29 10:06:47 -04:00
"`P0009R18 <https://wg21.link/P0009R18>`__","LWG","mdspan: A Non-Owning Multidimensional Array Reference","July 2022","|In progress| [#note-P0009R18]_|",""
[libc++][doc] Updates status documents. Adds the papers and LWG issues voted in during the July 2022 plenary. Note the updating of the project based statuses is left to the active contributors of these projects. Reviewed By: #libc, huixie90, philnik Differential Revision: https://reviews.llvm.org/D130595
2022-07-26 19:37:06 +02:00
"`P0429R9 <https://wg21.link/P0429R9>`__","LWG","A Standard ``flat_map``","July 2022","",""
[libc++] Implement P1169R4 (static operator()) Reviewed By: ldionne, huixie90, #libc Spies: EricWF, libcxx-commits, royjacobson Differential Revision: https://reviews.llvm.org/D135016
2022-10-01 21:25:13 +02:00
"`P1169R4 <https://wg21.link/P1169R4>`__","LWG","``static operator()``","July 2022","|Complete|","16.0"
[libc++][doc] Updates status documents. Adds the papers and LWG issues voted in during the July 2022 plenary. Note the updating of the project based statuses is left to the active contributors of these projects. Reviewed By: #libc, huixie90, philnik Differential Revision: https://reviews.llvm.org/D130595
2022-07-26 19:37:06 +02:00
"`P1222R4 <https://wg21.link/P1222R4>`__","LWG","A Standard ``flat_set``","July 2022","",""
[libc++][ranges][NFC] Revamp the Ranges status page Focus on the not-yet-implemented features: remove most details about the already-implemented C++20 stuff, list out the major C++23 additions. Differential Revision: https://reviews.llvm.org/D136657
2022-11-29 14:07:44 -08:00
"`P1223R5 <https://wg21.link/P1223R5>`__","LWG","``ranges::find_last()``, ``ranges::find_last_if()``, and ``ranges::find_last_if_not()``","July 2022","","","|ranges|"
[libc++][doc] Updates status documents. Adds the papers and LWG issues voted in during the July 2022 plenary. Note the updating of the project based statuses is left to the active contributors of these projects. Reviewed By: #libc, huixie90, philnik Differential Revision: https://reviews.llvm.org/D130595
2022-07-26 19:37:06 +02:00
"`P1467R9 <https://wg21.link/P1467R9>`__","LWG","Extended ``floating-point`` types and standard names","July 2022","",""
"`P1642R11 <https://wg21.link/P1642R11>`__","LWG","Freestanding ``[utilities]``, ``[ranges]``, and ``[iterators]``","July 2022","",""
[libc++][ranges][NFC] Revamp the Ranges status page Focus on the not-yet-implemented features: remove most details about the already-implemented C++20 stuff, list out the major C++23 additions. Differential Revision: https://reviews.llvm.org/D136657
2022-11-29 14:07:44 -08:00
"`P1899R3 <https://wg21.link/P1899R3>`__","LWG","``stride_view``","July 2022","","","|ranges|"
[libc++][print] Adds FILE functions. Drive-by fix to make sure the __retarget_buffer works correctly whan using a hint of 1. This was discovered in one of the new tests. Drive-by fixes __retarget_buffer when initialized with size 1. Implements parts of - P2093R14 Formatted output - P2539R4 Should the output of std::print to a terminal be synchronized with the underlying stream? Reviewed By: #libc, ldionne Differential Revision: https://reviews.llvm.org/D150044
2023-04-21 08:09:06 +02:00
"`P2093R14 <https://wg21.link/P2093R14>`__","LWG","Formatted output","July 2022","","|In Progress|"
[libc++][doc] Updates status documents. Adds the papers and LWG issues voted in during the July 2022 plenary. Note the updating of the project based statuses is left to the active contributors of these projects. Reviewed By: #libc, huixie90, philnik Differential Revision: https://reviews.llvm.org/D130595
2022-07-26 19:37:06 +02:00
"`P2165R4 <https://wg21.link/P2165R4>`__","LWG","Compatibility between ``tuple``, ``pair`` and ``tuple-like`` objects","July 2022","",""
[libc++][ranges][NFC] Revamp the Ranges status page Focus on the not-yet-implemented features: remove most details about the already-implemented C++20 stuff, list out the major C++23 additions. Differential Revision: https://reviews.llvm.org/D136657
2022-11-29 14:07:44 -08:00
"`P2278R4 <https://wg21.link/P2278R4>`__","LWG","``cbegin`` should always return a constant iterator","July 2022","","","|ranges|"
[libc++][doc] Updates format status. The paper - P2286R8 Formatting ranges is fully implemented modulo its feature test macro. This macro has been revised by - LWG3750 Too many papers bump __cpp_lib_format The new macro depends on - P2585R0 Improving default container formatting This paper revises parts of P2286R8 and adds new formatter specializations. The specialization for debug strings has some wording issues, which is addresses in this paper - P2733R0 Fix handling of empty specifiers in std::format Reviewed By: #libc, ldionne Differential Revision: https://reviews.llvm.org/D142153
2023-01-19 21:17:34 +01:00
"`P2286R8 <https://wg21.link/P2286R8>`__","LWG","Formatting Ranges","July 2022","|Complete|","16.0","|format| |ranges|"
[libc++] Implements constexpr <charconv>. Implements: - P2291R3 Add Constexpr Modifiers to Functions to_chars and from_chars for Integral Types in <charconv> Header Reviewed By: #libc, ldionne Differential Revision: https://reviews.llvm.org/D131317
2022-08-06 10:47:53 +02:00
"`P2291R3 <https://wg21.link/P2291R3>`__","LWG","Add Constexpr Modifiers to Functions ``to_chars`` and ``from_chars`` for Integral Types in ``<charconv>`` Header","July 2022","|Complete|","16.0"
[libc++][ranges][NFC] Revamp the Ranges status page Focus on the not-yet-implemented features: remove most details about the already-implemented C++20 stuff, list out the major C++23 additions. Differential Revision: https://reviews.llvm.org/D136657
2022-11-29 14:07:44 -08:00
"`P2302R4 <https://wg21.link/P2302R4>`__","LWG","``std::ranges::contains``","July 2022","","","|ranges|"
"`P2322R6 <https://wg21.link/P2322R6>`__","LWG","``ranges::fold``","July 2022","","","|ranges|"
"`P2374R4 <https://wg21.link/P2374R4>`__","LWG","``views::cartesian_product``","July 2022","","","|ranges|"
[libc++][doc] Updates status documents. Adds the papers and LWG issues voted in during the July 2022 plenary. Note the updating of the project based statuses is left to the active contributors of these projects. Reviewed By: #libc, huixie90, philnik Differential Revision: https://reviews.llvm.org/D130595
2022-07-26 19:37:06 +02:00
"`P2404R3 <https://wg21.link/P2404R3>`__","LWG","Move-only types for ``equality_comparable_with``, ``totally_ordered_with``, and ``three_way_comparable_with``","July 2022","",""
[libc++][ranges][NFC] Revamp the Ranges status page Focus on the not-yet-implemented features: remove most details about the already-implemented C++20 stuff, list out the major C++23 additions. Differential Revision: https://reviews.llvm.org/D136657
2022-11-29 14:07:44 -08:00
"`P2408R5 <https://wg21.link/P2408R5>`__","LWG","Ranges iterators as inputs to non-Ranges algorithms","July 2022","","","|ranges|"
[libc++] Implement P2417R2 (A more constexpr bitset) Reviewed By: ldionne, #libc Spies: jloser, arichardson, libcxx-commits, arphaman Differential Revision: https://reviews.llvm.org/D131218
2022-08-13 13:52:35 +02:00
"`P2417R2 <https://wg21.link/P2417R2>`__","LWG","A more ``constexpr`` ``bitset``","July 2022","|Complete|","16.0"
[libc++][doc] Updates status documents. Adds the papers and LWG issues voted in during the July 2022 plenary. Note the updating of the project based statuses is left to the active contributors of these projects. Reviewed By: #libc, huixie90, philnik Differential Revision: https://reviews.llvm.org/D130595
2022-07-26 19:37:06 +02:00
"`P2419R2 <https://wg21.link/P2419R2>`__","LWG","Clarify handling of encodings in localized formatting of chrono types","July 2022","",""
[libc++] Implement P2438R2 (std::string::substr() &&) This doesn't affect our ABI because `std::string::substr()` isn't in the dylib and the mangling of `substr() const` and `substr() const&` are different. Reviewed By: ldionne, Mordante, var-const, avogelsgesang, #libc Spies: arphaman, huixie90, libcxx-commits Differential Revision: https://reviews.llvm.org/D131668
2022-08-09 13:17:30 +02:00
"`P2438R2 <https://wg21.link/P2438R2>`__","LWG","``std::string::substr() &&``","July 2022","|Complete|","16.0"
[libc++] Implement P2445R1 (`std::forward_like`) Co-authored-by: A. Jiang <de34@live.cn> Reviewed By: philnik, huixie90, #libc Differential Revision: https://reviews.llvm.org/D132327
2022-08-21 22:21:08 +07:00
"`P2445R1 <https://wg21.link/P2445R1>`__","LWG","``forward_like``","July 2022","|Complete|","16.0"
[libc++] Implement P2446R2 (views::as_rvalue) Reviewed By: ldionne, var-const, #libc Spies: libcxx-commits Differential Revision: https://reviews.llvm.org/D137637
2022-12-11 11:32:54 +01:00
"`P2446R2 <https://wg21.link/P2446R2>`__","LWG","``views::as_rvalue``","July 2022","|Complete|","16.0","|ranges|"
[libc++][doc] Updates status documents. Adds the papers and LWG issues voted in during the July 2022 plenary. Note the updating of the project based statuses is left to the active contributors of these projects. Reviewed By: #libc, huixie90, philnik Differential Revision: https://reviews.llvm.org/D130595
2022-07-26 19:37:06 +02:00
"`P2460R2 <https://wg21.link/P2460R2>`__","LWG","Relax requirements on ``wchar_t`` to match existing practices","July 2022","",""
"`P2465R3 <https://wg21.link/P2465R3>`__","LWG","Standard Library Modules ``std`` and ``std.compat``","July 2022","",""
"`P2467R1 <https://wg21.link/P2467R1>`__","LWG","Support exclusive mode for ``fstreams``","July 2022","",""
[libc++][ranges][NFC] Revamp the Ranges status page Focus on the not-yet-implemented features: remove most details about the already-implemented C++20 stuff, list out the major C++23 additions. Differential Revision: https://reviews.llvm.org/D136657
2022-11-29 14:07:44 -08:00
"`P2474R2 <https://wg21.link/P2474R2>`__","LWG","``views::repeat``","July 2022","","","|ranges|"
[libc++][ranges] Implement P2494R2 (Relaxing range adaptors to allow for move only types) Implement P2494R2 `Relaxing range adaptors to allow for move only types` https://open-std.org/jtc1/sc22/wg21/docs/papers/2022/p2494r2.html#wording-ftm According to the words in P2494R2, I haven't add new test for `drop_while_view`, `take_while_view` and `filter_view`, because these views has the requirement that the predicate is an `indirect_unary_predicate`, which requires that the predicate is `copy_constructible`, so they still can't accept move only types as predicate. ``` [P2483R0] also suggests future work to relax the requirements on the predicate types stored by standard views. This paper does not perform this relaxation, as the copy constructibility requirement is enshrined in the indirect callable concepts ([indirectcallable.indirectinvocable]). Thus, while this paper modifies the views that currently use copyable-box for user provided predicates, it only does so to apply the rename of the exposition-only type to movable-box; it does not change any of the constraints on those views. It does, however, relax the requirements on invocables accepted by the transform family of views, because those are not constrained using the indirect callable concepts. ``` Reviewed By: #libc, var-const Differential Revision: https://reviews.llvm.org/D151629
2023-06-25 08:14:55 +08:00
"`P2494R2 <https://wg21.link/P2494R2>`__","LWG","Relaxing range adaptors to allow for move only types","July 2022","|Complete|","17.0","|ranges|"
[libc++][ranges][NFC] Revamp the Ranges status page Focus on the not-yet-implemented features: remove most details about the already-implemented C++20 stuff, list out the major C++23 additions. Differential Revision: https://reviews.llvm.org/D136657
2022-11-29 14:07:44 -08:00
"`P2499R0 <https://wg21.link/P2499R0>`__","LWG","``string_view`` range constructor should be ``explicit``","July 2022","|Complete|","16.0","|ranges|"
"`P2502R2 <https://wg21.link/P2502R2>`__","LWG","``std::generator``: Synchronous Coroutine Generator for Ranges","July 2022","","","|ranges|"
[libc++][format] Exposes basic-format-string This paper was accepted during the last plenary and is intended to be backported to LLVM 15. When backporting the release notes in the branch should be updated too. Note the feature-test macro isn't updated since this will change; three papers have updated the same macro in the same plenary. Implements: - P2508R1 Exposing std::basic-format-string Reviewed By: ldionne, #libc Differential Revision: https://reviews.llvm.org/D130643
2022-07-15 07:42:17 +02:00
"`P2508R1 <https://wg21.link/P2508R1>`__","LWG","Exposing ``std::basic-format-string``","July 2022","|Complete|","15.0"
[libc++][doc] Updates status documents. Adds the papers and LWG issues voted in during the July 2022 plenary. Note the updating of the project based statuses is left to the active contributors of these projects. Reviewed By: #libc, huixie90, philnik Differential Revision: https://reviews.llvm.org/D130595
2022-07-26 19:37:06 +02:00
"`P2513R4 <https://wg21.link/P2513R4>`__","LWG","``char8_t`` Compatibility and Portability Fixes","July 2022","",""
"`P2517R1 <https://wg21.link/P2517R1>`__","LWG","Add a conditional ``noexcept`` specification to ``std::apply``","July 2022","",""
[libcxx][NFC] Added a note about the P2520R0 Differential Revision: https://reviews.llvm.org/D145087
2023-03-02 07:58:15 +05:30
"`P2520R0 <https://wg21.link/P2520R0>`__","LWG","``move_iterator`` should be a random access iterator","July 2022","|Complete| [#note-P2520R0]_","17.0","|ranges|"
[libc++][ranges][NFC] Revamp the Ranges status page Focus on the not-yet-implemented features: remove most details about the already-implemented C++20 stuff, list out the major C++23 additions. Differential Revision: https://reviews.llvm.org/D136657
2022-11-29 14:07:44 -08:00
"`P2540R1 <https://wg21.link/P2540R1>`__","LWG","Empty Product for certain Views","July 2022","","","|ranges|"
[libc++] Implement `std::expected` P0323R12 Implement `std::expected` https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p0323r12.html Added tests Differential Revision: https://reviews.llvm.org/D124516 address comment
2022-11-04 11:42:42 +00:00
"`P2549R1 <https://wg21.link/P2549R1>`__","LWG","``std::unexpected`` should have ``error()`` as member accessor","July 2022","|Complete|","16.0"
[libc++][doc] Updates status documents. Adds the papers and LWG issues voted in during the July 2022 plenary. Note the updating of the project based statuses is left to the active contributors of these projects. Reviewed By: #libc, huixie90, philnik Differential Revision: https://reviews.llvm.org/D130595
2022-07-26 19:37:06 +02:00
"`P2553R1 <https://wg21.link/P2553R1>`__","LWG","Make ``mdspan`` ``size_type`` controllable","July 2022","",""
"`P2554R0 <https://wg21.link/P2554R0>`__","LWG","C-Array Interoperability of MDSpan","July 2022","",""
[libc++][format] Mark range formaters as complete. The __cpp_lib_format_ranges feature-test macro only depends on P2286R8 and P2585R0. Note since LWG3750 only affects these two C++23 papers there is nothing to do for older language versions. (The __cpp_lib_format feature-test macro depends on the incomplete formatting for chrono. So this part can't be marked as complete yet.) This completes - P2286R8 Formatting ranges - P2585R0 Improving default container formatting This partly implements - LWG3750 Too many papers bump __cpp_lib_format Reviewed By: #libc, ldionne Differential Revision: https://reviews.llvm.org/D147880
2023-04-09 13:24:21 +02:00
"`P2585R0 <https://wg21.link/P2585R0>`__","LWG","Improving default container formatting","July 2022","|Complete|","17.0"
[libc++][doc] Updates status documents. Adds the papers and LWG issues voted in during the July 2022 plenary. Note the updating of the project based statuses is left to the active contributors of these projects. Reviewed By: #libc, huixie90, philnik Differential Revision: https://reviews.llvm.org/D130595
2022-07-26 19:37:06 +02:00
"`P2590R2 <https://wg21.link/P2590R2>`__","LWG","Explicit lifetime management","July 2022","",""
"`P2599R2 <https://wg21.link/P2599R2>`__","LWG","``mdspan::size_type`` should be ``index_type``","July 2022","",""
"`P2604R0 <https://wg21.link/P2604R0>`__","LWG","mdspan: rename pointer and contiguous","July 2022","",""
"`P2613R1 <https://wg21.link/P2613R1>`__","LWG","Add the missing ``empty`` to ``mdspan``","July 2022","",""
[libc++][NFC] Improve consistency in status csv files
2023-01-11 10:30:33 -05:00
"","","","","","",""
[libc++][doc] Adds Kona plenary papers and issues. Directly marked entries with Nothing to do where applicable. Reviewed By: #libc, ldionne Differential Revision: https://reviews.llvm.org/D140407
2022-12-20 07:59:11 +01:00
"`P1202R5 <https://wg21.link/P1202R5>`__","LWG", "Asymmetric Fences", "November 2022","","","|concurrency TS|"
"`P1264R2 <https://wg21.link/P1264R2>`__","LWG", "Revising the wording of ``stream`` input operations", "November 2022","|Complete|","9.0",""
"`P1478R8 <https://wg21.link/P1478R8>`__","LWG", "``Byte-wise`` ``atomic`` ``memcpy``", "November 2022","","","|concurrency TS|"
"`P2167R3 <https://wg21.link/P2167R3>`__","LWG", "Improved Proposed Wording for LWG 2114", "November 2022","","",""
"`P2396R1 <https://wg21.link/P2396R1>`__","LWG", "Concurrency TS 2 fixes ", "November 2022","","","|concurrency TS|"
[libc++] Implement P2505R5(Monadic operations for std::expected). Implement P2505R5(https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p2505r5.html) Reviewed By: #libc, philnik, ldionne Differential Revision: https://reviews.llvm.org/D140911
2023-05-18 01:05:13 +08:00
"`P2505R5 <https://wg21.link/P2505R5>`__","LWG", "Monadic Functions for ``std::expected``", "November 2022","|Complete|","17.0",""
[libc++][print] Adds FILE functions. Drive-by fix to make sure the __retarget_buffer works correctly whan using a hint of 1. This was discovered in one of the new tests. Drive-by fixes __retarget_buffer when initialized with size 1. Implements parts of - P2093R14 Formatted output - P2539R4 Should the output of std::print to a terminal be synchronized with the underlying stream? Reviewed By: #libc, ldionne Differential Revision: https://reviews.llvm.org/D150044
2023-04-21 08:09:06 +02:00
"`P2539R4 <https://wg21.link/P2539R4>`__","LWG", "Should the output of ``std::print`` to a terminal be synchronized with the underlying stream?", "November 2022","|In Progress|","","|format|"
[libc++][doc] Adds Kona plenary papers and issues. Directly marked entries with Nothing to do where applicable. Reviewed By: #libc, ldionne Differential Revision: https://reviews.llvm.org/D140407
2022-12-20 07:59:11 +01:00
"`P2602R2 <https://wg21.link/P2602R2>`__","LWG", "Poison Pills are Too Toxic", "November 2022","","","|ranges|"
"`P2708R1 <https://wg21.link/P2708R1>`__","LWG", "No Further Fundamentals TSes", "November 2022","|Nothing to do|","",""
[libc++][doc] Adds Issaquah papers and issues. Reviewed By: ldionne, #libc Differential Revision: https://reviews.llvm.org/D143845
2023-02-12 13:07:49 +01:00
"","","","","","",""
"`P0290R4 <https://wg21.link/P0290R4>`__","LWG", "``apply()`` for ``synchronized_value<T>``","February 2023","","","|concurrency TS|"
"`P2770R0 <https://wg21.link/P2770R0>`__","LWG", "Stashing stashing ``iterators`` for proper flattening","February 2023","","","|ranges|"
"`P2164R9 <https://wg21.link/P2164R9>`__","LWG", "``views::enumerate``","February 2023","","","|ranges|"
[libc++][ranges] P2711R1 Making multi-param constructors of views explicit Implemented [[ https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p2711r1.html | P2711R1 ]] for existing views. (`join_with_view` is not yet implemented) Reviewed By: #libc, philnik Differential Revision: https://reviews.llvm.org/D144822
2023-03-22 23:24:22 +02:00
"`P2711R1 <https://wg21.link/P2711R1>`__","LWG", "Making multi-param constructors of ``views`` ``explicit``","February 2023","|Partial| [#note-P2711R1]_","","|ranges|"
[libc++][doc] Adds Issaquah papers and issues. Reviewed By: ldionne, #libc Differential Revision: https://reviews.llvm.org/D143845
2023-02-12 13:07:49 +01:00
"`P2609R3 <https://wg21.link/P2609R3>`__","LWG", "Relaxing Ranges Just A Smidge","February 2023","","","|ranges|"
"`P2713R1 <https://wg21.link/P2713R1>`__","LWG", "Escaping improvements in ``std::format``","February 2023","","","|format|"
[libc++][format] Improves width estimate. As obvious from the paper's title this is an LWG issue and thus retroactively applied to C++20. This change may the output for certain code points: 1 Considers 8477 extra codepoints as having a width 2 (as of Unicode 15) (mostly Tangut Ideographs) 2 Change the width of 85 unassigned code points from 2 to 1 3 Change the width of 8 codepoints (in the range U+3248 CIRCLED NUMBER TEN ON BLACK SQUARE ... U+324F CIRCLED NUMBER EIGHTY ON BLACK SQUARE) from 2 to 1, because it seems questionable to make an exception for those without input from Unicode Note that libc++ already uses Unicode 15, while the Standard requires Unicode 12. (The last time I checked MSVC STL used Unicode 14.) So in practice the only notable change is item 3. Implements P2675 LWG3780: The Paper format's width estimation is too approximate and not forward compatible Benchmark before these changes -------------------------------------------------------------------- Benchmark Time CPU Iterations -------------------------------------------------------------------- BM_ascii_text<char> 3928 ns 3928 ns 178131 BM_unicode_text<char> 75231 ns 75230 ns 9158 BM_cyrillic_text<char> 59837 ns 59834 ns 11529 BM_japanese_text<char> 39842 ns 39832 ns 17501 BM_emoji_text<char> 3931 ns 3930 ns 177750 BM_ascii_text<wchar_t> 4024 ns 4024 ns 174190 BM_unicode_text<wchar_t> 63756 ns 63751 ns 11136 BM_cyrillic_text<wchar_t> 44639 ns 44638 ns 15597 BM_japanese_text<wchar_t> 34425 ns 34424 ns 20283 BM_emoji_text<wchar_t> 3937 ns 3937 ns 177684 Benchmark after these changes -------------------------------------------------------------------- Benchmark Time CPU Iterations -------------------------------------------------------------------- BM_ascii_text<char> 3914 ns 3913 ns 178814 BM_unicode_text<char> 70380 ns 70378 ns 9694 BM_cyrillic_text<char> 51889 ns 51877 ns 13488 BM_japanese_text<char> 41707 ns 41705 ns 16723 BM_emoji_text<char> 3908 ns 3907 ns 177912 BM_ascii_text<wchar_t> 3949 ns 3948 ns 177525 BM_unicode_text<wchar_t> 64591 ns 64587 ns 10649 BM_cyrillic_text<wchar_t> 44089 ns 44078 ns 15721 BM_japanese_text<wchar_t> 39369 ns 39367 ns 17779 BM_emoji_text<wchar_t> 3936 ns 3934 ns 177821 Benchmarks without "if(__code_point < (__entries[0] >> 14))" -------------------------------------------------------------------- Benchmark Time CPU Iterations -------------------------------------------------------------------- BM_ascii_text<char> 3922 ns 3922 ns 178587 BM_unicode_text<char> 94474 ns 94474 ns 7351 BM_cyrillic_text<char> 69202 ns 69200 ns 10157 BM_japanese_text<char> 42735 ns 42692 ns 16382 BM_emoji_text<char> 3920 ns 3919 ns 178704 BM_ascii_text<wchar_t> 3951 ns 3950 ns 177224 BM_unicode_text<wchar_t> 81003 ns 80988 ns 8668 BM_cyrillic_text<wchar_t> 57020 ns 57018 ns 12048 BM_japanese_text<wchar_t> 39695 ns 39687 ns 17582 BM_emoji_text<wchar_t> 3977 ns 3976 ns 176479 This optimization does carry its weight for the Unicode and Cyrillic test. For the Japanese tests the gains are minor and for emoji it seems to have no effect. Reviewed By: ldionne, tahonermann, #libc Differential Revision: https://reviews.llvm.org/D144499
2023-02-21 17:33:56 +01:00
"`P2675R1 <https://wg21.link/P2675R1>`__","LWG", "``format``'s width estimation is too approximate and not forward compatible","February 2023","|Complete|","17.0","|format|"
[libc++][format] Improves fill character. The main change is to allow a UCS scalar value as fill character. Especially for char based formatting this increase the number of valid characters. Originally this was to be expected ABI breaking, however the current change does not seem to break the ABI. Implements - P2572 std::format() fill character allowances Depends on D144499 Reviewed By: ldionne, tahonermann, #libc Differential Revision: https://reviews.llvm.org/D144742
2023-02-09 21:38:42 +01:00
"`P2572R1 <https://wg21.link/P2572R1>`__","LWG", "``std::format`` fill character allowances","February 2023","|Complete|","17.0","|format|"
[libc++][format] Implements formatter thread::id. Since stacktrace header is WIP and it's not sure that will be done before LLVM17 update the documentation. When the header is implemented implementing the formatter is trivial, so that can be done quickly afterwards. Implements parts of: - P2693R1 Formatting thread::id and stacktrace Reviewed By: #libc, ldionne Differential Revision: https://reviews.llvm.org/D144331
2023-02-18 18:30:56 +01:00
"`P2693R1 <https://wg21.link/P2693R1>`__","LWG", "Formatting ``thread::id`` and ``stacktrace``","February 2023","|Partial| [#note-P2693R1]_","","|format|"
[libc++][doc] Adds Issaquah papers and issues. Reviewed By: ldionne, #libc Differential Revision: https://reviews.llvm.org/D143845
2023-02-12 13:07:49 +01:00
"`P2679R2 <https://wg21.link/P2679R2>`__","LWG", "Fixing ``std::start_lifetime_as`` for arrays","February 2023","","",""
"`P2674R1 <https://wg21.link/P2674R1>`__","LWG", "A trait for implicit lifetime types","February 2023","","",""
"`P2655R3 <https://wg21.link/P2655R3>`__","LWG", "``common_reference_t`` of ``reference_wrapper`` Should Be a Reference Type","February 2023","","",""
"`P2652R2 <https://wg21.link/P2652R2>`__","LWG", "Disallow User Specialization of ``allocator_traits``","February 2023","","",""
"`P2787R1 <https://wg21.link/P2787R1>`__","LWG", "``pmr::generator`` - Promise Types are not Values","February 2023","","",""
"`P2614R2 <https://wg21.link/P2614R2>`__","LWG", "Deprecate ``numeric_limits::has_denorm``","February 2023","","",""
"`P2588R3 <https://wg21.link/P2588R3>`__","LWG", "``barrier``’s phase completion guarantees","February 2023","","",""
"`P2763R1 <https://wg21.link/P2763R1>`__","LWG", "``layout_stride`` static extents default constructor fix","February 2023","","",""
"`P2736R2 <https://wg21.link/P2736R2>`__","CWG","Referencing The Unicode Standard","February 2023","","","|format|"
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