#![allow(dead_code, deprecated, unused_variables, unused_mut)]
#![feature(wrapping_next_power_of_two)]
use std::num::Wrapping;
fn main() {
    assert_eq!(Wrapping(2usize).next_power_of_two(), Wrapping(2));
    assert_eq!(Wrapping(3usize).next_power_of_two(), Wrapping(4));
    assert_eq!(Wrapping(200_u8).next_power_of_two(), Wrapping(0));
}