clang/test/SemaTemplate/instantiate-default-assignment-operator.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2 template<typename> struct PassRefPtr { };
   3 template<typename T> struct RefPtr {
   4   RefPtr& operator=(const RefPtr&) { int a[sizeof(T) ? -1 : -1];} // expected-error 2 {{array with a negative size}}
   5   RefPtr& operator=(const PassRefPtr<T>&);
   6 };
   7
   8 struct A { RefPtr<int> a; };  // expected-note {{instantiation of member function 'RefPtr<int>::operator=' requested here}}
   9 struct B : RefPtr<float> { }; // expected-note {{in instantiation of member function 'RefPtr<float>::operator=' requested here}}
  10
  11 void f() {
  12   A a1, a2;
  13   a1 = a2;
  14
  15   B b1, b2;
  16   b1 = b2;
  17 }