status.i4.v = dio_delete_cache(device_index.i4.r)

	This routine deletes all entries from DIO's cache of central database
	information.  This deletes any information acquired from the central
   	database during this program run.

	device_index	device index to delete cached information for
			(If a value of NULL is passed, cached information
			 for all devices will be deleted.)

	This function returns status values as follows:

	number of cached database entries deleted

	This function requires the following include files:

	cnsparam_h, diolib_h

	Related functions:

	dio_delete_pdb_all, dio_delete_all_info, dio_delete_info(_c),
	dio_delete_all_name_info, dio_delete_all_emc_info, 
	dio_delete_ftp_class_info_c, dio_delete_snapshot_class_info_c

	C/C++ usage:

	int	status;
	int	device_index = 14430;

	status = dio_delete_cache(&device_index);