Obtaining an HDS Locator for an NDF

The NDF_ system also allows you to obtain an HDS locator for a data structure whose NDF identifier you supply. In effect, this is the reverse of the importation process described in §. It is performed by the NDF_LOC routine, as follows:

      CALL NDF_LOC( INDF, MODE, LOC, STATUS )

The MODE argument specifies the mode of access required (`READ', `UPDATE' or `WRITE') and LOC returns the resulting HDS locator. Note that you should annul this locator (e.g. using DAT_ANNUL) when it is no longer required, as the NDF_ system will not perform this task itself.