#![allow(dead_code, deprecated, unused_variables, unused_mut)]
#![feature(trim_prefix_suffix)]
fn main() {
    let v = &[10, 40, 30];
    assert_eq!(v.trim_suffix(& [30]), & [10, 40] [..]);
    assert_eq!(v.trim_suffix(& [40, 30]), & [10] [..]);
    assert_eq!(v.trim_suffix(& [10, 40, 30]), & [] [..]);
    assert_eq!(v.trim_suffix(& [50]), & [10, 40, 30] [..]);
    assert_eq!(v.trim_suffix(& [50, 30]), & [10, 40, 30] [..]);
}