1  int a3[3];
       2  
       3  void f(int *a)
       4  {
       5    int i;
       6  
       7    for (i=3; --i;)
       8      a[i] = 42 / i;
       9  }
      10  
      11  int
      12  main ()
      13  {
      14    f(a3);
      15  
      16    if (a3[1] != 42 || a3[2] != 21)
      17      abort ();
      18  
      19    exit (0);
      20  }