#![allow(dead_code, deprecated, unused_variables, unused_mut)]
fn main() {
    let empty: [i32; 0] = [];
    assert!([1, 2, 2, 9].is_sorted());
    assert!(! [1, 3, 2, 4].is_sorted());
    assert!([0].is_sorted());
    assert!(empty.is_sorted());
    assert!(! [0.0, 1.0, f32::NAN].is_sorted());
}