// RUN: clang-cc -fsyntax-only -verify %s

void (*e) (int arg, const char * format, ...) __attribute__ ((__sentinel__ (1,1)));

int main()
{
        void (*b) (int arg, const char * format, ...) __attribute__ ((__sentinel__));  // expected-note {{function has been explicitly marked sentinel here}}
        void (*z) (int arg, const char * format, ...) __attribute__ ((__sentinel__ (2))); // expected-note {{function has been explicitly marked sentinel here}}


        void (*y) (int arg, const char * format, ...) __attribute__ ((__sentinel__ (5))); // expected-note {{function has been explicitly marked sentinel here}}

	b(1, "%s", (void*)0);	// OK
	b(1, "%s", 0);  // expected-warning {{missing sentinel in function call}}
	z(1, "%s",4 ,1,0);  // expected-warning {{missing sentinel in function call}}
	z(1, "%s", (void*)0, 1, 0);	// OK

	y(1, "%s", 1,2,3,4,5,6,7);  // expected-warning {{missing sentinel in function call}}

	y(1, "%s", (void*)0,3,4,5,6,7);	// OK

}

