[Bug libstdc++/104174] [12 Regression] unordered_map fails

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104174

--- Comment #2 from CVS 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:084680db9af077ca37c5523a58b6c11e090e7335

commit r12-6827-g084680db9af077ca37c5523a58b6c11e090e7335
Author: Jonathan Wakely <jwak...@redhat.com>
Date:   Sat Jan 22 00:35:45 2022 +0000

    libstdc++: Restore support for unordered_map<const T, ...> [PR104174]

    I broke this unintentionally in r12-4259.

    libstdc++-v3/ChangeLog:

            PR libstdc++/104174
            * include/bits/hashtable_policy.h (_Map_base): Add partial
            specialization for maps with const key types.
            * testsuite/23_containers/unordered_map/104174.cc: New test.