1extern void abort (void); 2 3int arr[] = {1,2,3,4}; 4int count = 0; 5 6int 7incr (void) 8{ 9 return ++count; 10} 11 12int main() 13{ 14 arr[count++] = incr (); 15 if (count != 2 || arr[count] != 3) 16 abort (); 17 return 0; 18} 19