#![allow(dead_code, deprecated, unused_variables, unused_mut)]
use std::time::Duration;
fn main() {
    let dur = Duration::new(2, 700_000_000);
    assert_eq!(dur.div_f32(3.14), Duration::new(0, 859_872_580));
    assert_eq!(dur.div_f32(3.14e5), Duration::new(0, 8_599));
}