file_id

IN:

File identifier returned by Hopen

	Purpose	Terminates access to a vgroup and/or vdata interface.
	Return value	Returns SUCCEED (or 0) if successful and FAIL (or -1) otherwise.
	Description	Vend terminates access to the vgroup and/or vdata interfaces initiated by Vstart and all internal data structures allocated by Vstart.
		Vend must be called after all vdata and vgroup operations on the file file_id are completed. Further attempts to use vdata or vgroup routines after calling Vend will result in a FAIL (or -1) being returned.

	FORTRAN	integer function vfend(file_id)
		integer file_id