950706-1.c

来自「this is a gcc file, you can download it 」· C语言 代码 · 共 17 行

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);
}