1  /* The bit-field below would have a problem if __INT_MAX__ is too
       2     small.  */
       3  #if __INT_MAX__ < 2147483647
       4  int
       5  main (void)
       6  {
       7    exit (0);
       8  }
       9  #else
      10  struct {
      11      unsigned bit : 30;
      12  } t;
      13  
      14  int main()
      15  {
      16      if (!(t.bit++))
      17  	exit (0);
      18      else
      19  	abort ();
      20  }
      21  #endif