#![allow(dead_code, deprecated, unused_variables, unused_mut)]
#![feature(split_array)]
fn main() {
    let mut v = [1, 0, 3, 0, 5, 6];
    let (left, right) = v.rsplit_array_mut::<4>();
    assert_eq!(left, & mut [1, 0]);
    assert_eq!(right, & mut [3, 0, 5, 6] [..]);
    left[1] = 2;
    right[1] = 4;
    assert_eq!(v, [1, 2, 3, 4, 5, 6]);
}