#![allow(dead_code, deprecated, unused_variables, unused_mut)]
use std::cell::OnceCell;
fn main() {
    let cell = OnceCell::new();
    let value = cell.get_or_init(|| 92);
    assert_eq!(value, & 92);
    let value = cell.get_or_init(|| unreachable!());
    assert_eq!(value, & 92);
}