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Subject: [Bug c++/92944] [concepts] redefinition error when using constrained
 structure template inside namespace
Date: Thu, 27 Jan 2022 16:02:17 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D92944

--- Comment #5 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:ce6054a22ae14594a2919d2ad87cd9478e616fb3

commit r12-6896-gce6054a22ae14594a2919d2ad87cd9478e616fb3
Author: Patrick Palka <ppalka@redhat.com>
Date:   Thu Jan 27 10:56:34 2022 -0500

    c++: constrained partial spec using qualified name [PR92944, PR103678]

    In the nested_name_specifier branch within cp_parser_class_head, we need
    to update 'type' with the result of maybe_process_partial_specialization
    like we do in the template_id_p branch.

            PR c++/92944
            PR c++/103678

    gcc/cp/ChangeLog:

            * parser.cc (cp_parser_class_head): Update 'type' with the resu=
lt
            of maybe_process_partial_specialization in the
            nested_name_specifier branch.  Refactor nearby code to accomoda=
te
            that maybe_process_partial_specialization returns a _TYPE, not a
            TYPE_DECL, and eliminate local variable 'class_type' in passing.

    gcc/testsuite/ChangeLog:

            * g++.dg/cpp2a/concepts-partial-spec10.C: New test.
            * g++.dg/cpp2a/concepts-partial-spec11.C: New test.=