https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122842
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- Oops, wrong link, this one: https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2023/p2836r1.html Which would make the conversion work.
