dio_wildcard_build

	status.i4.v = dio_wildcard_build(wc_device_index.i4.v,
					 num_devices.i4.v, device_indices.i4a.r,
				    	 errors.i2a.r, ftd.i2.v, scale_it.i4.v)

	This routine builds a wildcard device to read MADCs.  This is a list
	of devices that are later read as one device.  Getting the readings
	as a wildcard is more efficient for the front end.  The limit for the
	number of devices in a wildcard is 128.  The wildcard device keeps its
	composition until another dio_wildcard_build is done with the same
	device index.  All the device indices in the wildcard must be from
	the same front end.  The list can contain devices that do not have
	scaling even if "scale_it" is set to TRUE.  In this case, the devices
	that do not have scaling will be returned as floating values during
	a call to dio_wildcard_read.  Also, the status will return the
	number of devices without scaling.  See function dio_wildcard_read.

	wc_device_index	special wildcard device index (there are a limited
			number of these devices "User list MADC" for a
			particular front end)
	num_devices	number of devices in the wildcard list
	device_indices	list of device indices to read as a single
			wildcard device (maximum allowed is 128)
	errors		returned ACNET status value for each device in the list
	ftd 		Frequency Time Descriptor (FTD)
			(FTD_ONESHOT -> one shot,
			 FTD_DEFAULT -> use database default FTD,
			 FTD_1HZ -> 1 Hz request,
			 FTD_EVENT_MASK OR'ed with TCLK event value -> read
			 on TCLK event (event constants are in 'tclk_events')
			 (can use the macro BUILD_EVENT_FTD(event) or
			  BUILD_EVENT_PLUS_DELAY_FTD(event,delay) in 'macro'))
			(FTD constants are in 'diolib')
	scale_it	determines if returned values are scaled during the
			dio_read_wildcard call:
			(TRUE -> scaled (4-byte float values),
			 FALSE -> raw (4-byte integer values))

	This function returns status values as follows:

	OK			success
	DIO_BADARG		invalid number of devices passed
	DIO_MEMFAIL		memory allocation failure
	DIO_TOO_MANY		too many wildcard devices registered
	negative value		other ACNET format error
	positive value		number of first device in error

	This function requires the following include files:

	cnsparam_h, diolib_h, acnet_errors_h, tclk_events_h, macro_h

	Related functions:

	dio_wildcard_read, dio_wildcard_cancel, error_in_list(_c)

	C/C++ usage:

	short	errors[NUM_DEVICES];
	short	ftd = FTD_ONESHOT;
	int	status;
	int	wc_device_index = 65825;
	int	num_devices = NUM_DEVICES;
	static const int	device_indices[NUM_DEVICES] = {5552, 5560};
	int	scale_it = TRUE;

	status = dio_wildcard_build(wc_device_index,num_devices,
				    device_indices,errors,ftd,scale_it);