941025-1.c

this is a gcc file, you can download it and learn its usetility, for further detail please look at t

long f (x, y)
     long x,y;
{
  return (x > 1) ? y : (y & 1);
}

main ()
{
  if (f (2L, 0xdecadeL) != 0xdecadeL)
    abort ();
  exit (0);
}