[Bug libstdc++/111327] std::bind_front (and std::not_fn) doesn't always perfectly forward according to value category of the call wrapper object

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111327

--- Comment #8 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Patrick Palka <ppa...@gcc.gnu.org>:

https://gcc.gnu.org/g:ac1a399bf61b04845f5d6fc34e4b7a4db2bc5760

commit r14-7220-gac1a399bf61b04845f5d6fc34e4b7a4db2bc5760
Author: Patrick Palka <ppa...@redhat.com>
Date:   Fri Jan 12 23:02:12 2024 -0500

    libstdc++: Implement C++23 std::bind_back from P2387R3 [PR108827]

    The implementation is based off of std::bind_front.  Since this is a
    C++23 feature we use deducing this unconditionally.

            PR libstdc++/108827
            PR libstdc++/111327

    libstdc++-v3/ChangeLog:

            * include/bits/version.def (bind_back): Define.
            * include/bits/version.h: Regenerate.
            * include/std/functional (_Bind_back): Define for C++23.
            (bind_back): Likewise.
            * testsuite/20_util/function_objects/bind_back/1.cc: New test
            (adapted from corresponding bind_front test).
            * testsuite/20_util/function_objects/bind_back/111327.cc: Likewise.