1 // RUN: %clang_cc1 -fsyntax-only -verify %s
2 template<typename T> struct A; // expected-note 4{{template is declared here}}
3 
4 template<typename T> struct B : A<T*> { }; // expected-error{{implicit instantiation of undefined template}} \
5 // expected-error{{implicit instantiation of undefined template 'A<X *>'}}
6 
7 template<typename T> struct C : B<T> { } ; // expected-note{{instantiation of template class}}
8 
9 template<typename T> struct D : C<T> { }; // expected-note{{instantiation of template class}}
10 
11 template<typename T> struct E : D<T> { }; // expected-note{{instantiation of template class}}
12 
13 template<typename T> struct F : E<T(T)> { }; // expected-note{{instantiation of template class}}
14 
15 void f() {
16  (void)sizeof(F<int>); // expected-note{{instantiation of template class}}
17 }
18 
19 typedef struct { } X;
20 
21 void g() {
22   (void)sizeof(B<X>); // expected-note{{in instantiation of template class 'B<X>' requested here}}
23 }
24 
25 template<typename T>
26 struct 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 
30 void h() {
31   (void)sizeof(G<int>); // expected-note{{in instantiation of template class 'G<int>' requested here}}
32 }
33