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Subject: [Bug libstdc++/100475] semiregular-box's constructor uses wrong
 list-initialization
Date: Tue, 18 May 2021 04:35:26 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100475

--- Comment #6 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:fe993b469c528230d9a01e1ae2208610f960dd9f

commit r12-856-gfe993b469c528230d9a01e1ae2208610f960dd9f
Author: Patrick Palka <ppalka@redhat.com>
Date:   Tue May 18 00:28:44 2021 -0400

    libstdc++: Fix up semiregular-box partial specialization [PR100475]

    This makes the in-place constructor of our partial specialization of
    __box for already-semiregular types perform direct-non-list-initializat=
ion
    (in accordance with the specification of the primary template), and
    additionally makes the member function data() use std::__addressof.

    libstdc++-v3/ChangeLog:

            PR libstdc++/100475
            * include/std/ranges (__box::__box): Use non-list-initialization
            in member initializer list of in-place constructor of the
            partial specialization for semiregular types.
            (__box::operator->): Use std::__addressof.
            * testsuite/std/ranges/adaptors/detail/semiregular_box.cc
            (test02): New test.
            * testsuite/std/ranges/single_view.cc (test04): New test.=