https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491 Bug 67491 depends on bug 92186, which changed state.
Bug 92186 Summary: [concepts] requires expression outside of concept definition cannot return false https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92186 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED