-- Bug 12944 depends on bug 13830, which changed state.
Bug 13830 Summary: Invalid covariant type for identical type, friend related http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13830 What |Old Value |New Value ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |DUPLICATE http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12944