[Bug libstdc++/108952] [10/11/12 Regression] Regression in uses_allocator_construction_args for pair of rvalue references

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108952

--- Comment #9 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:858ff5c919fc1af31e399a7aea118c87f855972a

commit r12-9487-g858ff5c919fc1af31e399a7aea118c87f855972a
Author: Jonathan Wakely <jwak...@redhat.com>
Date:   Mon Feb 27 22:34:57 2023 +0000

    libstdc++: Fix uses_allocator_construction_args for pair<T&&, U&&>
[PR108952]

    This implements LWG 3527 which fixes the handling of pair<T&&, U&&> in
    std::uses_allocator_construction_args.

    libstdc++-v3/ChangeLog:

            PR libstdc++/108952
            * include/bits/uses_allocator_args.h
            (uses_allocator_construction_args): Implement LWG 3527.
            * testsuite/20_util/pair/astuple/get-2.cc: New test.
            * testsuite/20_util/scoped_allocator/108952.cc: New test.
            * testsuite/20_util/uses_allocator/lwg3527.cc: New test.

    (cherry picked from commit 8e342c04550466ab088c33746091ce7f3498ee44)