35 lines · cpp
1// RUN: %clang_cc1 -verify=expected,precxx17 %std_cxx98-14 %s2// RUN: %clang_cc1 -verify=expected,cxx17 %std_cxx17- %s3 4template <class T> struct Base {5 // expected-note@-1 2{{member type 'Base<int>' found by ambiguous name lookup}}6 // expected-note@-2 2{{member type 'Base<char>' found by ambiguous name lookup}}7 static void f();8};9 10struct X0 { };11 12template <class T> struct Derived: Base<int>, Base<char> {13 typename Derived::Base b; // expected-error{{member 'Base' found in multiple base classes of different types}}14 typename Derived::Base<double> d; // OK15 16 void g(X0 *t) {17 t->Derived::Base<T>::f();18 t->Base<T>::f();19 t->Base::f(); // expected-error{{member 'Base' found in multiple base classes of different types}}20 }21};22 23namespace PR6717 {24 template <typename T>25 class WebVector {26 } // expected-error {{expected ';' after class}}27 28 WebVector(const WebVector<T>& other) { } // expected-error{{undeclared identifier 'T'}} \29 precxx17-error{{a type specifier is required}} \30 cxx17-error{{deduction guide declaration without trailing return type}}31 32 template <typename C>33 WebVector<T>& operator=(const C& other) { } // expected-error{{undeclared identifier 'T'}}34}35