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Subject: [Bug libstdc++/100768] Range iterator operations should be function
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Date: Wed, 26 May 2021 18:40:49 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100768

--- Comment #1 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:a49a045b92f982f5617c3bbde97a33157237e25b

commit r12-1074-ga49a045b92f982f5617c3bbde97a33157237e25b
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/ranges_base.h (advance, distance, next, 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.=