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

	This routine removes all data from the program cache of database

	device_index	device index to delete cached information for
			(If a value of NULL or a device index of 0 is passed,
			 cached information for all devices will be deleted.)

	This function returns status values as follows:

	number of entries deleted

	This function requires the following include files:

	cnsparam_h, diolib_h

	Related functions:

	dio_delete_info(_c), dio_delete_cache, dio_cache_property_info_c

	C/C++ usage:

	int	status;
	int	device_index = 0;

	status = dio_delete_all_info(&device_index);