1  int
       2  f()
       3  {
       4    int j = 1;
       5    long i;
       6    i = 0x60000000L;
       7    do
       8      {
       9        j <<= 1;
      10        i += 0x10000000L;
      11      } while (i < -0x60000000L);
      12    return j;
      13  }
      14  
      15  int
      16  main ()
      17  {
      18    if (f () != 2)
      19      abort ();
      20    exit (0);
      21  }