1 // RUN: %clang_cc1 -std=c++11 -verify %s 2 3 // From core issue 1227. 4 5 template <class T> struct A { using X = typename T::X; }; // expected-error {{no members}} 6 template <class T> typename T::X f(typename A<T>::X); 7 template <class T> void f(...) {} 8 template <class T> auto g(typename A<T>::X) -> typename T::X; // expected-note {{here}} expected-note {{substituting}} 9 template <class T> void g(...) {} 10 11 void h() 12 { 13 f<int>(0); // ok, SFINAE in return type 14 g<int>(0); // not ok, substitution inside A<int> is a hard error 15 } 16