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Subject: [Bug libstdc++/94971] [10/11 Regression] Parallel Mode cannot be
 used in C++20
Date: Thu, 07 May 2020 20:44:00 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94971

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jonathan Wakely <redi@gcc.gnu.org>:

https://gcc.gnu.org/g:9c24e97a97aaad4ad0500170cbae4f387d82ddd6

commit r11-180-g9c24e97a97aaad4ad0500170cbae4f387d82ddd6
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Thu May 7 21:43:49 2020 +0100

    libstdc++: Fix some C++20 algorithms to work in parallel mode

    Some new algorithms need to use _GLIBCXX_STD_A to refer to the "normal"
    version of the algorithm, to workaround the namespace dance done for
    parallel mode.

            PR libstdc++/94971 (partial)
            * include/bits/ranges_algo.h (ranges::__sample_fn): Qualify
            std::sample using macro to work in parallel mode.
            (__sort_fn): Likewise for std::sort.
            (ranges::__nth_element_fn): Likewise for std::nth_element.
            * include/bits/stl_algobase.h (lexicographical_compare_three_wa=
y):
            Likewise for std::__min_cmp.
            * include/parallel/algobase.h (lexicographical_compare_three_wa=
y):
            Add to namespace std::__parallel.=