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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 libstdc++/114316] assert failure with _GLIBCXX_DEBUG and empty
 range of singular iterators passed to std:: algorithm
Date: Sun, 17 Mar 2024 15:42:49 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114316

--- Comment #2 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Francois Dumont <fdumont@gcc.gnu.org>:

https://gcc.gnu.org/g:07fad7a7fc245369989e9ca746728ea78b924715

commit r14-9507-g07fad7a7fc245369989e9ca746728ea78b924715
Author: Fran=C3=A7ois Dumont <fdumont@gcc.gnu.org>
Date:   Thu Mar 14 22:13:57 2024 +0100

    libstdc++: Implement N3644 on _Safe_iterator<> [PR114316]

    Consider range of value-initialized iterators as valid and empty.

    libstdc++-v3/ChangeLog:

            PR libstdc++/114316
            * include/debug/safe_iterator.tcc
(_Safe_iterator<>::_M_valid_range):
            First check if both iterators are value-initialized before chec=
king
if
            singular.
            * testsuite/23_containers/set/debug/114316.cc: New test case.
            * testsuite/23_containers/vector/debug/114316.cc: New test case=
.=