p5.cpp revision e31b8fb25b458f00e31dcd657c0840e5238e0f05 
1// RUN: %clang_cc1 -fsyntax-only -verify %s
2
3template<typename T> inline void f(T) { }
4template void f(int); // expected-note{{previous explicit instantiation}}
5template void f(int); // expected-error{{duplicate explicit instantiation}}
6
7template<typename T>
8struct X0 {
9  union Inner { };
10
11  void f(T) { }
12
13  static T value;
14};
15
16template<typename T>
17T X0<T>::value = 3.14; // expected-warning{{implicit conversion turns literal floating-point number into integer}}
18
19template struct X0<int>; // expected-note{{previous explicit instantiation}} \
20                            expected-note{{requested here}}
21template struct X0<int>; // expected-error{{duplicate explicit instantiation}}
22
23template void X0<float>::f(float); // expected-note{{previous explicit instantiation}}
24template void X0<float>::f(float); // expected-error{{duplicate explicit instantiation}}
25
26template union X0<float>::Inner; // expected-note{{previous explicit instantiation}}
27template union X0<float>::Inner; // expected-error{{duplicate explicit instantiation}}
28
29template float X0<float>::value; // expected-note{{previous explicit instantiation}}
30template float X0<float>::value; // expected-error{{duplicate explicit instantiation}}
31
32// Make sure that we don't get tricked by redeclarations of nested classes.
33namespace NestedClassRedecls {
34  template<typename T>
35  struct X {
36    struct Nested;
37    friend struct Nested;
38
39    struct Nested {
40      Nested() {}
41    } nested;
42  };
43
44  X<int> xi;
45
46  template struct X<int>;
47}
48