https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105027
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Ed Catmur from comment #0) > [bit.cast] Constraints (nb. prior to P1719R2 these were specified as SFINAE, > but they have been there since the start): N.B. P1719 didn't change anything here, the new Constraints: element is exactly equivalent to "shall not participate in overload resolution unless ..."
