llvm-project/clang/test/SemaTemplate/instantiation-backtrace.cpp

33 lines
1.2 KiB
C++

// 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}}
}