https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55004 Bug 55004 depends on bug 58102, which changed state.
Bug 58102 Summary: rejects valid initialization of constexpr object with mutable member https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58102 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED
