#![allow(unused_variables)]
fn main() {
    use std::collections::VecDeque;
    let mut buf = VecDeque::with_capacity(15);
    buf.push_back(2);
    buf.push_back(1);
    buf.push_front(3);
    buf.make_contiguous().sort();
    assert_eq!(buf.as_slices(), (& [1, 2, 3] as & [_], & [] as & [_]));
    buf.make_contiguous().sort_by(|a, b| b.cmp(a));
    assert_eq!(buf.as_slices(), (& [3, 2, 1] as & [_], & [] as & [_]));
}