#![allow(dead_code, deprecated, unused_variables, unused_mut)]
fn main() {
    let v = &[10, 40, 30];
    assert_eq!(v.strip_suffix(& [30]), Some(& [10, 40] [..]));
    assert_eq!(v.strip_suffix(& [40, 30]), Some(& [10] [..]));
    assert_eq!(v.strip_suffix(& [10, 40, 30]), Some(& [] [..]));
    assert_eq!(v.strip_suffix(& [50]), None);
    assert_eq!(v.strip_suffix(& [50, 30]), None);
}