is_empty.i4.v = queue_is_empty(queue.g.v)

	This routine will returns whether or not a queue is empty.

	queue		queue to check

	This function returns status values as follows:

	CLIB_INVARG		not a valid queue
	TRUE			queue is empty
	FALSE			queue contains at least one element

	This function requires the following include files:


	Related functions:

	queue_size, queue_init, queue_insert, queue_remove, queue_peek,
	queue_delete, queue_free

	C/C++ usage:

	int	is_empty;
	void	*queue;

	is_empty = queue_is_empty(queue);