delta_time_history_private

	num_returned.i4.v = delta_time_history_private(max_return.i4.v,
						       times.r8a.r,
						       private_data.g.v)

	This function will return a history of delta time values
	in seconds that were generated by prior calls to "delta_time".
	This call should be preceded by a call to delta_time_allocate.

	max_return	maximum number of times to return
	times		returned times in seconds
	private_data	private data returned by a previous call to
			delta_time_allocate

	This function returns status values as follows:

	number of returned times

	This function requires the following include files:

	clib_h

	Related functions:

	delta_time_allocate, delta_time_private, delta_time_free,
	delta_time_history, delta_time

	C/C++ usage:

	int	status;
	int	num_returned;
	int	max_return = NUM_TIMES;
	double	times[NUM_TIMES];
	void	*private_data;

	status = delta_time_allocate(&private_data);

	num_returned = delta_time_history_private(max_return,times,
						  private_data);