filename

IN:

Name of the HDF file

	Purpose	Returns the number of scientific datasets in the file.
	Return value	Returns the number of datasets if successful and FAIL (or -1) otherwise.
	Description	In HDF version 3.3, DFSDndatasets replaced DFSDnumber. In order to maintain backward compatibility with existing HDF applications, HDF will continue to support DFSDnumber. However, it is recommended that all new applications use DFSDndatasets instead of DFSDnumber.

	FORTRAN	integer function dsnum(filename)
		character*(*) filename