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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++/113158] [11/12/13/14 Regression] Erroneous "looser
 exception specification" error for class template and depedent noexcept value
Date: Sat, 17 Feb 2024 14:29:39 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113158

--- Comment #4 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Marek Polacek <mpolacek@gcc.gnu.org>:

https://gcc.gnu.org/g:876fa432ef4074053fa65b1855e7d43320515576

commit r14-9047-g876fa432ef4074053fa65b1855e7d43320515576
Author: Marek Polacek <polacek@redhat.com>
Date:   Thu Feb 15 17:07:43 2024 -0500

    c++: wrong looser excep spec for dep noexcept [PR113158]

    Here we find ourselves in maybe_check_overriding_exception_spec in
    a template context where we can't instantiate a dependent noexcept.
    That's OK, but we have to defer the checking otherwise we give wrong
    errors.

            PR c++/113158

    gcc/cp/ChangeLog:

            * search.cc (maybe_check_overriding_exception_spec): Defer chec=
king
            when a noexcept couldn't be instantiated & evaluated to false/t=
rue.

    gcc/testsuite/ChangeLog:

            * g++.dg/cpp0x/noexcept83.C: New test.=