1  int
       2  f(long long x)
       3  {
       4    x >>= 8;
       5    return x & 0xff;
       6  }
       7  
       8  main()
       9  {
      10    if (f(0x0123456789ABCDEFLL) != 0xCD)
      11      abort();
      12    exit (0);
      13  }