use ringbuffer::{AllocRingBuffer, RingBuffer};
fn main() {
    let mut buffer = AllocRingBuffer::with_capacity(2);

    // First entry of the buffer is now 5.
    buffer.push(5);

    // The last item we pushed is 5
    assert_eq!(buffer.get(-1), Some(&5));

    // Second entry is now 42.
    buffer.push(42);
    assert_eq!(buffer.peek(), Some(&5));
    assert!(buffer.is_full());

    // Because capacity is reached the next push will be the first item of the buffer.
    buffer.push(1);
    assert_eq!(buffer.to_vec(), vec![42, 1]);
}