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Subject: [Bug libstdc++/100768] Range iterator operations should be function
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Date: Thu, 03 Jun 2021 14:57:55 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100768

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Jonathan Wakely
<redi@gcc.gnu.org>:

https://gcc.gnu.org/g:e01562b302eae3d415b43a4efe7ce52cff3e0063

commit r10-9886-ge01562b302eae3d415b43a4efe7ce52cff3e0063
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Wed May 26 17:32:53 2021 +0100

    libstdc++: Change [range.iter.op] functions to function objects [PR 100=
768]

    The standard specifies std::ranges::distance etc as function templates,
    but it also requires them to not be found by ADL, and to suppress ADL
    when normal unqualified lookup does find them. That means they need to
    be function objects.

    libstdc++-v3/ChangeLog:

            PR libstdc++/100768
            * include/bits/range_access.h (ranges::advance)
            (ranges::distance, ranges::next, ranges::prev): Replace
            function templates with function objects.
            * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc:
            Adjust for changes to function objects.
            * testsuite/std/ranges/adaptors/elements.cc: Add using
            declarations for names from namespace ranges.
            * testsuite/std/ranges/adaptors/transform.cc: Likewise.
            * testsuite/24_iterators/range_operations/100768.cc: New test.

    (cherry picked from commit a49a045b92f982f5617c3bbde97a33157237e25b)=