System.Collections.Queue.QueueEnumerator.QueueEnumerator C# (CSharp) Method

            internal QueueEnumerator(Queue q)
            {
                _q = q;
                _version = _q._version;
                _index = 0;
                _currentElement = _q._array;
                if (_q._size == 0)
                    _index = -1;
            }