#![allow(dead_code, deprecated, unused_variables, unused_mut)]
#![feature(str_split_inclusive_remainder)]
fn main() {
    let mut split = "Mary had a little lamb".split_inclusive(' ');
    assert_eq!(split.remainder(), Some("Mary had a little lamb"));
    split.next();
    assert_eq!(split.remainder(), Some("had a little lamb"));
    split.by_ref().for_each(drop);
    assert_eq!(split.remainder(), None);
}