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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/90212] [8/9/10/11 Regression] by-ref capture of constexpr
 class object rejected
Date: Tue, 05 May 2020 21:40:37 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D90212

--- Comment #2 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:04b89192ace3a766a17374d5bef8fb19d9be2d7c

commit r11-122-g04b89192ace3a766a17374d5bef8fb19d9be2d7c
Author: Jason Merrill <jason@redhat.com>
Date:   Tue May 5 17:39:19 2020 -0400

    c++: constexpr and lambda capture [PR90212]

    This is the same issue as PR86429, just in potential_constant_expressio=
n_1
    rather than cxx_eval_constant_expression.  As in that case, when we're
    trying to evaluate a constant expression within a lambda, we don't have=
 a
    constant closure object to refer to, but we can try to refer directly to
the
    captured variable.

    gcc/cp/ChangeLog
    2020-05-05  Jason Merrill  <jason@redhat.com>

            PR c++/90212
            * constexpr.c (potential_constant_expression_1): In a lambda
            function, consider a captured variable directly.=