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