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;
func_ref()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>
f()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>
fi()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
main()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*);
f()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; }
g()56 template<typename T> int g() { return n<int>; }
57 namespace { extern template int n<int>; }
58
59 #endif
60
61