[Bug c++/114219] [11/12/13/14 Regression] [expr.const] lvalue-to-rvalue conversion is not diagnosed to disqualify constant expressions for empty classes

[janschultke at googlemail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114219

Jan Schultke <janschultke at googlemail dot com> changed:

           What    |Removed                     |Added
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             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #5 from Jan Schultke <janschultke at googlemail dot com> ---
Looks like the existing comments were right.

Lvalue-to-rvalue conversion very rarely takes place for class types, and if it
does, that may be a wording bug.

Instead of lvalue-to-rvalue conversion, this case calls the implicitly-defined
copy constructor, which can be used in constant expressions.