https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491 Bug 67491 depends on bug 125490, which changed state.
Bug 125490 Summary: GCC accepts an invalid concept that compares sizeof(T) with nullptr https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125490 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED
