1struct decision 2{ 3 char enforce_mode; 4 struct decision *next; 5}; 6 7 8static void 9clear_modes (p) 10 register struct decision *p; 11{ 12 goto blah; 13 14foo: 15 p->enforce_mode = 0; 16blah: 17 if (p) 18 goto foo; 19} 20 21main() 22{ 23 struct decision *p = 0; 24 clear_modes (p); 25 exit (0); 26} 27