https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55004 Bug 55004 depends on bug 57941, which changed state.
Bug 57941 Summary: [c++11] confusing error message with invalid constexpr constructor in template struct https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57941 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED
