#![allow(dead_code, deprecated, unused_variables, unused_mut)]
#![feature(ip)]
use std::net::Ipv4Addr;
fn main() {
    assert_eq!(Ipv4Addr::new(240, 0, 0, 0).is_reserved(), true);
    assert_eq!(Ipv4Addr::new(255, 255, 255, 254).is_reserved(), true);
    assert_eq!(Ipv4Addr::new(239, 255, 255, 255).is_reserved(), false);
    assert_eq!(Ipv4Addr::new(255, 255, 255, 255).is_reserved(), false);
}