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From: "janschultke at googlemail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/114219] [11/12/13/14 Regression] [expr.const]
 lvalue-to-rvalue conversion is not diagnosed to disqualify constant
 expressions for empty classes
Date: Sun, 03 Mar 2024 08:33:14 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114219

--- Comment #4 from Jan Schultke <janschultke at googlemail dot com> ---
I don't see how lvalue-to-rvalue conversion would be bypassed here.

https://eel.is/c++draft/conv.lval#:conversion,lvalue-to-rvalue has no speci=
al
provision for empty classes.

https://eel.is/c++draft/dcl.init.general#16.9 would necessitate
lvalue-to-rvalue conversion because the initializer has to be converted to a
prvalue. I couldn't find any special rule for empty classes.=