1 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s 2 3 // The example given in the standard (this is rejected for other reasons anyway). 4 template<class T> struct A; 5 template<class T> using B = typename A<T>::U; // expected-error {{no type named 'U' in 'A<T>'}} 6 template<class T> struct A { 7 typedef B<T> U; // expected-note {{in instantiation of template type alias 'B' requested here}} 8 }; 9 B<short> b; 10 11 template<typename T> using U = int; 12 13 template<typename ...T> void f(U<T> ...xs); 14 void g() { f<void,void,void>(1, 2, 3); } 15 16 // FIXME: This is illegal, but probably only because CWG1044 missed this paragraph. 17 template<typename T> using U = U<T>; 18