text: // RUN: clang-cc -fsyntax-only -verify %s
  void f(int i);
  void f(int i = 0); // expected-note {{previous definition is here}}
  void f(int i = 17); // expected-error {{redefinition of default argument}}
  
  
  void g(int i, int j, int k = 3);
  void g(int i, int j = 2, int k);
  void g(int i = 1, int j, int k);
  
  void h(int i, int j = 2, int k = 3, 
         int l, // expected-error {{missing default argument on parameter 'l'}}
         int,   // expected-error {{missing default argument on parameter}}
         int n);// expected-error {{missing default argument on parameter 'n'}}
  
  struct S { } s;
  void i(int = s) { } // expected-error {{incompatible type}}
  
  struct X { 
    X(int);
  };
  
  void j(X x = 17);
  
  struct Y {
    explicit Y(int);
  };
  
  void k(Y y = 17); // expected-error{{cannot initialize 'y' with an rvalue of type 'int'}}
  
  void kk(Y = 17); // expected-error{{cannot initialize a value of type 'struct Y' with an rvalue of type 'int'}}
  