#![allow(dead_code, deprecated, unused_variables, unused_mut)]
fn main() {
    let mut x = true;
    x |= false;
    assert_eq!(x, true);
    let mut x = false;
    x |= false;
    assert_eq!(x, false);
    let mut x: u8 = 5;
    x |= 1;
    assert_eq!(x, 5);
    let mut x: u8 = 5;
    x |= 2;
    assert_eq!(x, 7);
}