[Bug libstdc++/114367] std::vector constexpr initialization doesn't start lifetime of array members

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114367

--- Comment #4 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:16afbd9c9c4282d56062cef95e6eccfdcf3efe03

commit r14-9545-g16afbd9c9c4282d56062cef95e6eccfdcf3efe03
Author: Jonathan Wakely <jwak...@redhat.com>
Date:   Mon Mar 18 13:00:17 2024 +0000

    libstdc++: Begin lifetime of storage in std::vector<bool> [PR114367]

    This doesn't cause a problem with GCC, but Clang correctly diagnoses a
    bug in the code. The objects in the allocated storage need to begin
    their lifetime before we start using them.

    This change uses the allocator's construct function instead of using
    std::construct_at directly, in order to support fancy pointers.

    libstdc++-v3/ChangeLog:

            PR libstdc++/114367
            * include/bits/stl_bvector.h (_M_allocate): Use allocator's
            construct function to begin lifetime of words.