https://gcc.gnu.org/bugzilla/show_bug.cgi?id=37475
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> --- Oops, I meant 382 is NAD http://cplusplus.github.io/LWG/lwg-closed.html#382 I'm not sure what (if anything) we need to do here though, someone needs to re-analyze.