#![allow(dead_code, deprecated, unused_variables, unused_mut)]
#![feature(wrapping_int_impl)]
use std::num::Wrapping;
fn main() {
    assert_eq!(Wrapping(10isize).signum(), Wrapping(1));
    assert_eq!(Wrapping(0isize).signum(), Wrapping(0));
    assert_eq!(Wrapping(- 10isize).signum(), Wrapping(- 1));
}