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Subject: [Bug libstdc++/100631] ranges::elements_view:: _Sentinel is missing
 __distance_from() that can access _M_current of _Iterator
Date: Tue, 18 May 2021 14:22:06 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100631

--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Patrick Palka <ppalka@gcc.gnu.org>:

https://gcc.gnu.org/g:38751c4d5e15bd1c682ac4c868a2c4ce48ca5503

commit r12-880-g38751c4d5e15bd1c682ac4c868a2c4ce48ca5503
Author: Patrick Palka <ppalka@redhat.com>
Date:   Tue May 18 10:21:27 2021 -0400

    libstdc++: Fix access issue in elements_view::_Sentinel [PR100631]

    In the earlier commit r12-854 I forgot to also rewrite the other operat=
or-
    overload in terms of the split-out member function _M_distance_from.

    libstdc++-v3/ChangeLog:

            PR libstdc++/100631
            * include/std/ranges (elements_view::_Sentinel::operator-): Use
            _M_distance_from in the other operator- overload too.
            * testsuite/std/ranges/adaptors/elements.cc (test06): Augment t=
est.=