1  long f1(long a){return a&0xff000000L;}
       2  long f2 (long a){return a&~0xff000000L;}
       3  long f3(long a){return a&0x000000ffL;}
       4  long f4(long a){return a&~0x000000ffL;}
       5  long f5(long a){return a&0x0000ffffL;}
       6  long f6(long a){return a&~0x0000ffffL;}
       7  
       8  main ()
       9  {
      10    long a = 0x89ABCDEF;
      11  
      12    if (f1(a)!=0x89000000L||
      13        f2(a)!=0x00ABCDEFL||
      14        f3(a)!=0x000000EFL||
      15        f4(a)!=0x89ABCD00L||
      16        f5(a)!=0x0000CDEFL||
      17        f6(a)!=0x89AB0000L)
      18      abort();
      19    exit(0);
      20  }