| .. _cxx23-status: |
| |
| ================================ |
| libc++ C++23 Status |
| ================================ |
| |
| .. include:: ../Helpers/Styles.rst |
| |
| .. contents:: |
| :local: |
| |
| |
| Overview |
| ================================ |
| |
| In November 2020, the C++ standard committee adopted the first changes to the next version of the C++ standard, known here as "C++2b" (probably to be C++23). |
| In February 2023, the C++ standard committee approved this draft, and sent it to ISO for approval as C++23. |
| |
| This page shows the status of libc++; the status of clang's support of the language features is `here <https://clang.llvm.org/cxx_status.html#cxx23>`__. |
| |
| .. attention:: Features in unreleased drafts of the standard are subject to change. |
| |
| The groups that have contributed papers: |
| |
| - CWG - Core Language Working group |
| - LWG - Library working group |
| - SG1 - Study group #1 (Concurrency working group) |
| |
| .. note:: "Nothing to do" means that no library changes were needed to implement this change. |
| |
| .. _paper-status-cxx23: |
| |
| Paper Status |
| ==================================== |
| |
| .. csv-table:: |
| :file: Cxx23Papers.csv |
| :header-rows: 1 |
| :widths: auto |
| |
| .. note:: |
| |
| .. [#note-P0533R9] P0533R9: ``isfinite``, ``isinf``, ``isnan`` and ``isnormal`` are implemented. |
| .. [#note-P1413R3] P1413R3: ``std::aligned_storage_t`` and ``std::aligned_union_t`` are marked deprecated, but |
| clang doesn't issue a diagnostic for deprecated using template declarations. |
| .. [#note-P2520R0] P2520R0: Libc++ implemented this paper as a DR in C++20 as well. |
| .. [#note-P2711R1] P2711R1: ``join_with_view`` hasn't been done yet since this type isn't implemented yet. |
| .. [#note-P2693R1] P1413R3: The formatter for ``std::thread::id`` is implemented. |
| The formatter for ``stacktrace`` is not implemented, since ``stacktrace`` is |
| not implemented yet. |
| |
| .. _issues-status-cxx23: |
| |
| Library Working Group Issues Status |
| ==================================== |
| |
| .. csv-table:: |
| :file: Cxx23Issues.csv |
| :header-rows: 1 |
| :widths: auto |
| |
| .. note:: |
| |
| .. [#note-LWG3750] LWG3750 Only ``__cpp_lib_format_ranges`` is fully implemented. |
| .. [#note-LWG3798] LWG3798: ``join_with_view``, ``zip_transform_view``, and ``adjacent_transform_view`` haven't been done yet since these types aren't implemented yet. |