https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491 Bug 67491 depends on bug 82507, which changed state.
Bug 82507 Summary: [concepts] premature substitution into constraint of non-template member function https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82507 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED