p1.cpp revision 663b5a0be7261c29bc4c526a71cffcfa02d4153e 
1// RUN: clang-cc -fsyntax-only -verify %s
2
3struct C { };
4
5template<typename T>
6struct X0 {
7  T value; // expected-error{{incomplete}}
8};
9
10// Explicitly instantiate a class template specialization
11template struct X0<int>;
12template struct X0<void>; // expected-note{{instantiation}}
13
14// Explicitly instantiate a function template specialization
15template<typename T>
16void f0(T t) {
17  ++t; // expected-error{{cannot modify}}
18}
19
20template void f0(int);
21template void f0<long>(long);
22template void f0<>(unsigned);
23template void f0(int C::*); // expected-note{{instantiation}}
24
25// Explicitly instantiate a member template specialization
26template<typename T>
27struct X1 {
28  template<typename U>
29  struct Inner {
30    T member1;
31    U member2; // expected-error{{incomplete}}
32  };
33
34  template<typename U>
35  void f(T& t, U u) {
36    t = u; // expected-error{{incompatible}}
37  }
38};
39
40template struct X1<int>::Inner<float>;
41template struct X1<int>::Inner<double>;
42template struct X1<int>::Inner<void>; // expected-note{{instantiation}}
43
44template void X1<int>::f(int&, float);
45template void X1<int>::f<long>(int&, long);
46template void X1<int>::f<>(int&, double);
47template void X1<int>::f<>(int&, int*); // expected-note{{instantiation}}
48
49// Explicitly instantiate members of a class template
50struct Incomplete; // expected-note{{forward declaration}}
51struct NonDefaultConstructible {
52  NonDefaultConstructible(int);
53};
54
55template<typename T, typename U>
56struct X2 {
57  void f(T &t, U u) {
58    t = u; // expected-error{{incompatible}}
59  }
60
61  struct Inner {
62    T member1;
63    U member2; // expected-error{{incomplete}}
64  };
65
66  static T static_member1;
67  static U static_member2;
68};
69
70template<typename T, typename U>
71T X2<T, U>::static_member1 = 17; // expected-error{{incompatible type}}
72
73template<typename T, typename U>
74U X2<T, U>::static_member2; // expected-error{{no matching}}
75
76template void X2<int, float>::f(int &, float);
77template void X2<int, float>::f(int &, double); // expected-error{{does not refer}}
78template void X2<int, int*>::f(int&, int*); // expected-note{{instantiation}}
79
80template struct X2<int, float>::Inner;
81template struct X2<int, Incomplete>::Inner; // expected-note{{instantiation}}
82
83template int X2<int, float>::static_member1;
84template int* X2<int*, float>::static_member1; // expected-note{{instantiation}}
85template
86  NonDefaultConstructible X2<NonDefaultConstructible, int>::static_member1;
87
88template
89  NonDefaultConstructible X2<int, NonDefaultConstructible>::static_member2; // expected-note{{instantiation}}
90