https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491 Bug 67491 depends on bug 67969, which changed state.
Bug 67969 Summary: [concepts] bug with overloaded function when using constraints https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67969 What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED