https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99546
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Keywords|wrong-code |accepts-invalid Ever confirmed|0 |1 Last reconfirmed| |2021-03-11 --- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- I think the requires expression should be rejected as ill-formed.