1  int foo (a, c)
       2  {
       3    int b;
       4  
       5    if (a + c >= 0)			/* b < 0 ==== a < 10? */
       6      return a | 0x80000000;
       7    return 0;
       8  }
       9  
      10  void bar (a)
      11       int a;
      12  {
      13    if (foo (a, 10) & 0x80000000)
      14      printf ("y");
      15    else
      16      printf ("n");
      17  }
      18  
      19  int main ()
      20  {
      21    bar (0);
      22    bar (1);
      23    bar (-1);
      24    bar (10);
      25    bar (-10);
      26    bar (11);
      27    bar (-11);
      28    bar (0x7fffffff);
      29    bar (-0x7fffffff);
      30  
      31    puts ("");
      32    return 0;
      33  }