1 // RUN: %clang_cc1 -fsyntax-only -std=c++11 -verify %s 2 // RUN: %clang_cc1 -fsyntax-only -std=c++1y -verify %s -DCXX1Y 3 4 #ifndef CXX1Y 5 6 template<typename T, typename U, U> using alias_ref = T; 7 template<typename T, typename U, U> void func_ref() {} 8 template<typename T, typename U, U> struct class_ref {}; 9 10 template<int N> 11 struct U { 12 static int a; 13 }; 14 15 template<int N> struct S; // expected-note 6{{here}} 16 17 template<int N> 18 int U<N>::a = S<N>::kError; // expected-error 6{{undefined}} 19 20 template<typename T> 21 void f() { 22 (void)alias_ref<int, int&, U<0>::a>(); // expected-note {{here}} 23 (void)func_ref<int, int&, U<1>::a>(); // expected-note {{here}} 24 (void)class_ref<int, int&, U<2>::a>(); // expected-note {{here}} 25 }; 26 27 28 template<int N> 29 void fi() { 30 (void)alias_ref<int, int&, U<N>::a>(); // expected-note {{here}} 31 (void)func_ref<int, int&, U<N+1>::a>(); // expected-note {{here}} 32 (void)class_ref<int, int&, U<N+2>::a>(); // expected-note {{here}} 33 }; 34 35 int main() { 36 f<int>(); // NOTE: Non-dependent name uses are type-checked at template definition time. 37 fi<10>(); // expected-note 3{{here}} 38 } 39 40 namespace N { 41 template<typename T> struct S { static int n; }; 42 template<typename T> int S<T>::n = 5; 43 void g(int*); 44 template<typename T> int f() { 45 int k[S<T>::n]; 46 g(k); 47 return k[3]; 48 } 49 int j = f<int>(); 50 } 51 52 #else 53 // expected-no-diagnostics 54 55 namespace { template<typename> extern int n; } 56 template<typename T> int g() { return n<int>; } 57 namespace { extern template int n<int>; } 58 59 #endif 60 61
