text: // RUN: %clang_cc1 -x c++ -fms-extensions -fsyntax-only -emit-pch -o %t %s
  // RUN: %clang_cc1 -x c++ -fms-extensions -fsyntax-only -include-pch %t %s -verify
  
  #ifndef HEADER
  #define HEADER
  template<typename T>
  void f(T t) {
    __if_exists(T::foo) {
      { }
      t.foo();
    }
  
    __if_not_exists(T::bar) {
      int *i = t;
      { }
    }
  }
  #else
  struct HasFoo { 
    void foo();
  };
  struct HasBar { 
    void bar(int);
    void bar(float);
  };
  
  template void f(HasFoo); // expected-note{{in instantiation of function template specialization 'f<HasFoo>' requested here}}
                           // expected-error@14{{no viable conversion from 'HasFoo' to 'int *'}}
  template void f(HasBar);
  #endif
  