[Bug libstdc++/66742] abort on sorting list with custom allocator that is not stateless

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66742

--- Comment #19 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:1e7a269856fd67aff78ac874bec96d31a54b2fd9

commit r12-4873-g1e7a269856fd67aff78ac874bec96d31a54b2fd9
Author: Jonathan Wakely <jwak...@redhat.com>
Date:   Tue Nov 2 10:21:01 2021 +0000

    libstdc++: Fix regression in std::list::sort [PR66742]

    The standard does not require const-correct comparisons in list::sort.

    libstdc++-v3/ChangeLog:

            PR libstdc++/66742
            * include/bits/list.tcc (list::sort): Use mutable iterators for
            comparisons.
            * include/bits/stl_list.h (_Scratch_list::_Ptr_cmp): Likewise.
            * testsuite/23_containers/list/operations/66742.cc: Check
            non-const comparisons.