[Bug libstdc++/118559] [15 Regression] __array_rank is broken for clang so need workaround in libstdc++

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118559

--- Comment #1 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jonathan Wakely <r...@gcc.gnu.org>:

https://gcc.gnu.org/g:c0e865f73ddee2e7247a23a7d57ad80261861d35

commit r15-7650-gc0e865f73ddee2e7247a23a7d57ad80261861d35
Author: Jonathan Wakely <jwak...@redhat.com>
Date:   Wed Feb 19 14:46:32 2025 +0000

    libstdc++: Workaround Clang bug with __array_rank built-in [PR118559]

    We started using the __array_rank built-in with r15-1252-g6f0dfa6f1acdf7
    but that built-in is buggy in versions of Clang up to and including 19.

    libstdc++-v3/ChangeLog:

            PR libstdc++/118559
            * include/std/type_traits (rank, rank_v): Do not use
            __array_rank for Clang 19 and older.