An HDS object (named QUALITY_NAMES) is created to hold quality name information within the specified NDF extension. An error is reported if the NDF extension does not exist. If the extension does exist, an array of five HDS locators is returned which is needed when calling other IRQ routines. The first locator points to a temporary object which holds a cloned identifier for the NDF, the other four point to components of the QUALITY_NAMES structure contained in the NDF. IRQ_RLSE should be called to annul these locators (and the NDF identifier) when no further access to the NDFs quality names information is required.

The QUALITY component of the NDF is reset to an undefined state by this routine. Therefore, the QUALITY component should not be mapped for access prior to calling this routine.

The LOCS argument returned by this routine specifies the NDF which will be operated on by subsequent IRQ routines. Specifically, LOCS determines the bounds of the NDF. Care should therefore be taken that subsequent calls to IRQ routines refer to the NDF specified by the INDF argument to this routine, and not for instance to a section of the NDF which will in general have different bounds.

Note, an error is reported if only READ access is available to the NDF.

CALL IRQ_NEW( INDF, XNAME, LOCS, STATUS )

INDF = INTEGER (Given)

XNAME = CHARACTER $\ast$ ( $\ast$ ) (Given)

LOCS(5) = CHARACTER $\ast$ ( $\ast$ ) (Returned)

STATUS = INTEGER (Given and Returned)