https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56090
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |INVALID Status|UNCONFIRMED |RESOLVED --- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> --- This was clarified by Core DR 1310 https://wg21.link/cwg1310 foo::foo names the constructor, and so can only be used to declare the constructor as a friend, or in a using-declaration for inheriting constructors.