vdata_id

IN:

Vdata identifier returned by VSattach

	Purpose	Determines the number of records in a vdata.
	Return value	Returns the number of records in the vdata if successful and FAIL (or -1) otherwise.
	Description	VSelts returns the number of records in the vdata identified by vdata_id.

	FORTRAN	integer function vsfelts(vdata_id)
		integer vdata_id