https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491 Bug 67491 depends on bug 66844, which changed state.
Bug 66844 Summary: [c++-concepts] Requires-expression parameter with void type https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66844 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED
