https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55004 Bug 55004 depends on bug 56991, which changed state.
Bug 56991 Summary: constexpr std::initializer_list rejects too complex initialization https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56991 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED
