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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: Mon, 25 May 2020 22:06:09 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D90212

--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Jason Merrill
<jason@gcc.gnu.org>:

https://gcc.gnu.org/g:aa613a81831bdc044840a95a7a7803a235608503

commit r10-8183-gaa613a81831bdc044840a95a7a7803a235608503
Author: Jason Merrill <jason@redhat.com>
Date:   Mon May 25 18:04:39 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.=