#![allow(dead_code, deprecated, unused_variables, unused_mut)]
#![feature(new_range_api)]
use core::range::{Range, RangeFrom, RangeInclusive};
fn main() {
    let arr = [0, 1, 2, 3, 4];
    assert_eq!(arr[..], [0, 1, 2, 3, 4]);
    assert_eq!(arr[..3], [0, 1, 2]);
    assert_eq!(arr[..= 3], [0, 1, 2, 3]);
    assert_eq!(arr[RangeFrom::from(1..)], [1, 2, 3, 4]);
    assert_eq!(arr[Range::from(1..3)], [1, 2]);
    assert_eq!(arr[RangeInclusive::from(1..= 3)], [1, 2, 3]);
}