1// RUN: %clang_cc1 -fsyntax-only -verify %s
2template<typename T> struct A; // expected-note 4{{template is declared here}}
3
4template<typename T> struct B : A<T*> { }; // expected-error{{implicit instantiation of undefined template}} \
5// expected-error{{implicit instantiation of undefined template 'A<X *>'}}
6
7template<typename T> struct C : B<T> { } ; // expected-note{{instantiation of template class}}
8
9template<typename T> struct D : C<T> { }; // expected-note{{instantiation of template class}}
10
11template<typename T> struct E : D<T> { }; // expected-note{{instantiation of template class}}
12
13template<typename T> struct F : E<T(T)> { }; // expected-note{{instantiation of template class}}
14
15void f() {
16 (void)sizeof(F<int>); // expected-note{{instantiation of template class}}
17}
18
19typedef struct { } X;
20
21void g() {
22  (void)sizeof(B<X>); // expected-note{{in instantiation of template class 'B<X>' requested here}}
23}
24
25template<typename T>
26struct G : A<T>, // expected-error{{implicit instantiation of undefined template 'A<int>'}}
27  A<T*> // expected-error{{implicit instantiation of undefined template 'A<int *>'}}
28  { };
29
30void h() {
31  (void)sizeof(G<int>); // expected-note{{in instantiation of template class 'G<int>' requested here}}
32}
33
34namespace PR13365 {
35  template <class T> class ResultTy { // expected-warning {{does not declare any constructor}}
36    T t; // expected-note {{reference member 't' will never be initialized}}
37  };
38
39  template <class T1, class T2>
40    typename ResultTy<T2>::error Deduce( void (T1::*member)(T2) ) {} // \
41    // expected-note {{instantiation of template class 'PR13365::ResultTy<int &>'}} \
42    // expected-note {{substitution failure [with T1 = PR13365::Cls, T2 = int &]}}
43
44  struct Cls {
45    void method(int&);
46  };
47  void test() {
48    Deduce(&Cls::method); // expected-error {{no matching function}} \
49                          // expected-note {{substituting deduced template arguments into function template 'Deduce' [with T1 = PR13365::Cls, T2 = int &]}}
50  }
51}
52