#![allow(dead_code, deprecated, unused_variables, unused_mut)]
use std::cmp::Ordering;
fn main() {
    assert_eq!([1.].iter().partial_cmp([1.].iter()), Some(Ordering::Equal));
    assert_eq!([1.].iter().partial_cmp([1., 2.].iter()), Some(Ordering::Less));
    assert_eq!([1., 2.].iter().partial_cmp([1.].iter()), Some(Ordering::Greater));
}