1// RUN: %clang_cc1 -std=c++11 -verify %s 2 3// From core issue 1227. 4 5template <class T> struct A { using X = typename T::X; }; // expected-error {{no members}} 6template <class T> typename T::X f(typename A<T>::X); 7template <class T> void f(...) {} 8template <class T> auto g(typename A<T>::X) -> typename T::X; // expected-note {{here}} 9template <class T> void g(...) {} 10 11void 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 // expected-note {{substituting}} 15} 16