[Bug c++/123738] [16 Regression] "is not a constant expression" in code using a string literal operator template since r16-6431

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123738

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code
           See Also|                            |https://bugzilla.redhat.com
                   |                            |/show_bug.cgi?id=2429697

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
As noted at https://bugzilla.redhat.com/show_bug.cgi?id=2429697#c1 without the
'constexpr' it (mis)compiles and leads to runtime errors.