https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96185
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Will Wray from comment #2) > Would an early-delivered future feature require an opt-in switch? The relevant -std switch would be the opt-in. > Can P1061 be default enabled under earlier std flags by DR or otherwise? Not as a DR, absolutely not. There is no defect. It could be supported in non-strict modes as an extension, if the syntax doesn't conflict with anything a valid program would use.
