test/SemaTemplate/instantiate-overload-candidates.cpp

// RUN: %clang_cc1 -fsyntax-only -verify %s

// This is the function actually selected during overload resolution, and the
// only one defined.
template <typename T> void f(T*, int) {}

template <typename T> struct S;
template <typename T> struct S_ : S<T> { typedef int type; }; // expected-note{{in instantiation}}
template <typename T> struct S {
  // Force T to have a complete type here so we can observe instantiations with
  // incomplete types.
  T t; // expected-error{{field has incomplete type}}
};

// Provide a bad class and an overload that instantiates templates with it.
class NoDefinition; // expected-note{{forward declaration}}
template <typename T> S_<NoDefinition>::type f(T*, NoDefinition*); // expected-note{{in instantiation}}

void test(int x) {
  f(&x, 0);
}