https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103091
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #2) > which is consider CD5. That's just a detail of which draft of was included in, which doesn't mean much. More relevant is that it was approved as a DR so it applies to C++17 (and earlier) too.