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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/100205] [11/12 Regression] error: invalid use of non-static
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Date: Thu, 22 Apr 2021 11:46:09 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100205

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jason at gcc dot gnu.org

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Started to be rejected with r11-8181

    c++: non-static member, array bound, sizeof [PR93314]

    N2253 allowed referring to non-static data members without an object in
    unevaluated operands like that of sizeof, but in a constant-expression
    context like an array bound or template argument within such an unevalu=
ated
    operand we do actually need a value, so that permission cannot apply.

    gcc/cp/ChangeLog:

            PR c++/93314
            * semantics.c (finish_id_expression_1): Clear
cp_unevaluated_operand
            for a non-static data member in a constant-expression.=