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From: "ppalka at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/100070] Standard library container iterator-pair
 constructors should check C++20 iterator concepts
Date: Tue, 12 Oct 2021 21:50:22 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100070

Patrick Palka <ppalka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=3D100795

--- Comment #9 from Patrick Palka <ppalka at gcc dot gnu.org> ---
This seems to be related to the correctness bug PR100795: some of our
ranges::algos (e.g. ranges::inplace_merge) are implemented as simple wrappe=
rs
over the corresponding std::algo, but that breaks in cases where the std::a=
lgo
has a minimum requirement on the range's iterator_category..=