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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/92752] [10 Regression] Bogus "ignored qualifiers" warning
 on const-qualified pointer-to-member-function objects
Date: Fri, 30 Jun 2023 04:04:57 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D92752

--- Comment #7 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Patrick Palka
<ppalka@gcc.gnu.org>:

https://gcc.gnu.org/g:8c12c47d0c5c40df6e5eeb8625d4708c8a42dbe0

commit r10-11483-g8c12c47d0c5c40df6e5eeb8625d4708c8a42dbe0
Author: Patrick Palka <ppalka@redhat.com>
Date:   Fri Jan 28 15:41:15 2022 -0500

    c++: bogus warning with value init of const pmf [PR92752]

    Here we're emitting a -Wignored-qualifiers warning for an intermediate
    compiler-generated cast of nullptr to 'method-type* const' as part of
    value initialization of a const pmf.  This patch suppresses the warning
    by instead casting to the corresponding unqualified type.

            PR c++/92752

    gcc/cp/ChangeLog:

            * typeck.c (build_ptrmemfunc): Cast a nullptr constant to the
            unqualified pointer type not the qualified one.

    gcc/testsuite/ChangeLog:

            * g++.dg/warn/Wignored-qualifiers2.C: New test.

    Co-authored-by: Jason Merrill <jason@redhat.com>
    (cherry picked from commit e971990cbda091b4caf5e1a5bded5121068934e4)=