#![allow(dead_code, deprecated, unused_variables, unused_mut)]
use std::sync::atomic::{AtomicBool, Ordering};
fn main() {
    let some_bool = AtomicBool::new(true);
    assert_eq!(
        some_bool.compare_exchange(true, false, Ordering::Acquire, Ordering::Relaxed),
        Ok(true)
    );
    assert_eq!(some_bool.load(Ordering::Relaxed), false);
    assert_eq!(
        some_bool.compare_exchange(true, true, Ordering::SeqCst, Ordering::Acquire),
        Err(false)
    );
    assert_eq!(some_bool.load(Ordering::Relaxed), false);
}