[Bug libstdc++/103295] constexpr std::string does not work for clang

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103295

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This could be an unimplemented feature in clang with respect to C++23 by the
way.