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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/113200] std::char_traits<char>::move is not constexpr when
 the argument is a string literal
Date: Wed, 03 Jan 2024 11:13:45 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113200

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2024-01-03
          Component|libstdc++                   |c++
             Status|UNCONFIRMED                 |NEW
           Keywords|rejects-valid               |diagnostic
     Ever confirmed|0                           |1

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Let's recategorize this as a front-end diagnostic issue. GCC's error is bad.
That's mostly because of the ((char*)(&((S<5>*)this)->S<5>::data_)) noise, =
but
it would also be good to explicitly state that comparisons with literals gi=
ve
unspecified results and so are not constant expressions.=