/// <summary>
/// Creates a shallow copy of the <see cref="ArrayQueue"/>.
/// </summary>
/// <returns>A shallow copy of the <see cref="ArrayQueue"/>.</returns>
public ArrayQueue Clone()
{
var queue = new ArrayQueue(_array.Length);
Array.Copy(_array, queue._array, _array.Length);
queue.Count = Count;
queue._head = _head;
queue._tail = _tail;
return(queue);
}
/// <summary>
/// Initializes a new instance of the <see cref="QueueStackEnumerator"/>.
/// </summary>
/// <param name="queue">The <see cref="ArrayQueue"/> queue.</param>
public QueueStackEnumerator(ArrayQueue queue)
{
_queue = queue;
_index = queue.Count == 0 ? 0 : -2;
_current = null;
}