Function human_sort::compare_chars_iters

pub fn compare_chars_iters<'a>(
    c1: Chars<'a>, 
    c2: Chars<'a>
) -> Result<Ordering, ()>

use std::cmp::Ordering;
use human_sort::compare_chars_iters;
assert_eq!(compare_chars_iters("aaa".chars(), "bbb".chars()), Ok(Ordering::Less));