1 // RUN: %clang_cc1 -pedantic-errors -std=c++11 -emit-pch %s -o %t 2 // RUN: %clang_cc1 -pedantic-errors -std=c++11 -include-pch %t -verify %s 3 4 #ifndef HEADER_INCLUDED 5 6 #define HEADER_INCLUDED 7 8 using size_t = decltype(sizeof(int)); 9 int operator"" _foo(const char *p, size_t); 10 f(T t)11template<typename T> auto f(T t) -> decltype(t + ""_foo) { return 0; } 12 13 #else 14 15 int j = ""_foo; 16 int k = f(0); 17 int *l = f(&k); 18 struct S {}; 19 int m = f(S()); // expected-error {{no matching}} 20 // expected-note@11 {{substitution failure}} 21 22 #endif 23