https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491 Bug 67491 depends on bug 67727, which changed state.
Bug 67727 Summary: [concepts] parameterized constraint not being checked for unused variables https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67727 What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED
