1  extern void abort (void);
       2  
       3  struct S
       4  {
       5    long o;
       6  };
       7  
       8  struct T
       9  {
      10    long o;
      11    struct S m[82];
      12  };
      13  
      14  struct T t;
      15  
      16  int
      17  main ()
      18  {
      19    struct S *p, *q;
      20  
      21    p = (struct S *) &t;
      22    p = &((struct T *) p)->m[0];
      23    q = p + 82;
      24    while (--q > p)
      25      q->o = -1;
      26    q->o = 0;
      27  
      28    if (q > p)
      29      abort ();
      30    if (q - p > 0)
      31      abort ();
      32    return 0;
      33  }