[Bug libstdc++/105957] __n * sizeof(_Tp) might overflow under consteval context for std::allocator

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105957

--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-12 branch has been updated by Jonathan Wakely
<r...@gcc.gnu.org>:

https://gcc.gnu.org/g:2ef2de76dae5cac14e0de77ca7205e43be03ab22

commit r12-8655-g2ef2de76dae5cac14e0de77ca7205e43be03ab22
Author: Jonathan Wakely <jwak...@redhat.com>
Date:   Tue Jun 14 14:37:25 2022 +0100

    libstdc++: Check for size overflow in constexpr allocation [PR105957]

    libstdc++-v3/ChangeLog:

            PR libstdc++/105957
            * include/bits/allocator.h (allocator::allocate): Check for
            overflow in constexpr allocation.
            * testsuite/20_util/allocator/105975.cc: New test.

    (cherry picked from commit 0a9af7b4ef1b8aa85cc8820acf54d41d1569fc10)