https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55004 Bug 55004 depends on bug 117700, which changed state.
Bug 117700 Summary: spurious error "non-constant condition" when inside a class member https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117700 What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID