#![allow(dead_code, deprecated, unused_variables, unused_mut)]
#![feature(wrapping_int_impl)]
use std::num::Wrapping;
fn main() {
    let n: Wrapping<i16> = Wrapping(0b0000000_01010101);
    assert_eq!(n, Wrapping(85));
    let m = n.swap_bytes();
    assert_eq!(m, Wrapping(0b01010101_00000000));
    assert_eq!(m, Wrapping(21760));
}