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Subject: [Bug c++/102629] [10/11/12 Regression] ICE: tree check in
 lookup_base, at cp/search.c:233 since r10-2194-g10acaf4db9f8b54b
Date: Tue, 26 Apr 2022 20:12:31 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102629

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jason Merrill <jason@gcc.gnu.org>:

https://gcc.gnu.org/g:9ace5d4dab2ab39072b0f07089621a823580f27c

commit r12-8273-g9ace5d4dab2ab39072b0f07089621a823580f27c
Author: Jason Merrill <jason@redhat.com>
Date:   Tue Apr 26 00:19:40 2022 -0400

    c++: pack init-capture of unresolved overload [PR102629]

    Here we were failing to diagnose that the initializer for the capture p=
ack
    is an unresolved overload.  It turns out that the reason we didn't
recognize
    the deduction failure in do_auto_deduction was that the individual 'aut=
o'
in
    the expansion of the capture pack was still marked as a parameter pack,=
 so
    we were deducing it to an empty pack instead of failing.

            PR c++/102629

    gcc/cp/ChangeLog:

            * pt.cc (gen_elem_of_pack_expansion_instantiation): Clear
            TEMPLATE_TYPE_PARAMETER_PACK on auto.

    gcc/testsuite/ChangeLog:

            * g++.dg/cpp2a/lambda-pack-init7.C: New test.=