queue->get_length (ul_oocbs)

	length.i4.v = get_length(queue.s.r)

	This method returns the length (the number of entries) of the Queue.

	queue             a pointer to the queue (structure of type Queue)

	This function returns:

	the number of items in the Queue

	Use of this class requires the following header files:

	queue.h

	Related functions:

	create_Queue()    the constructor for instances of the Queue class

	C/C++ usage:

	#include "queue.h"
	Queue	*queue;
	unsigned int	length;

	length = (*queue->get_length)(queue);