950706-1.c   [plain text]

int
f (int n)
{
  return (n > 0) - (n < 0);
}

main ()
{
  if (f (-1) != -1)
    abort ();
  if (f (1) != 1)
    abort ();
  if (f (0) != 0)
    abort ();
  exit (0);
}