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// RUN: %clang_cc1 -fsyntax-only -verify %s
template<typename T> struct A; // expected-note 4{{template is declared here}}
template<typename T> struct B : A<T*> { }; // expected-error{{implicit instantiation of undefined template}} \
// expected-error{{implicit instantiation of undefined template 'A<X *>'}}
template<typename T> struct C : B<T> { } ; // expected-note{{instantiation of template class}}
template<typename T> struct D : C<T> { }; // expected-note{{instantiation of template class}}
template<typename T> struct E : D<T> { }; // expected-note{{instantiation of template class}}
template<typename T> struct F : E<T(T)> { }; // expected-note{{instantiation of template class}}
void f() {
(void)sizeof(F<int>); // expected-note{{instantiation of template class}}
}
typedef struct { } X;
void g() {
(void)sizeof(B<X>); // expected-note{{in instantiation of template class 'B<X>' requested here}}
}
template<typename T>
struct G : A<T>, // expected-error{{implicit instantiation of undefined template 'A<int>'}}
A<T*> // expected-error{{implicit instantiation of undefined template 'A<int *>'}}
{ };
void h() {
(void)sizeof(G<int>); // expected-note{{in instantiation of template class 'G<int>' requested here}}
}
namespace PR13365 {
template <class T> class ResultTy { // expected-warning {{does not declare any constructor}}
T t; // expected-note {{reference member 't' will never be initialized}}
};
template <class T1, class T2>
typename ResultTy<T2>::error Deduce( void (T1::*member)(T2) ) {} // \
// expected-note {{instantiation of template class 'PR13365::ResultTy<int &>'}} \
// expected-note {{substitution failure [with T1 = PR13365::Cls, T2 = int &]}}
struct Cls {
void method(int&);
};
void test() {
Deduce(&Cls::method); // expected-error {{no matching function}} \
// expected-note {{substituting deduced template arguments into function template 'Deduce' [with T1 = PR13365::Cls, T2 = int &]}}
}
}
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