NDG_HLTPV - Temporarily halt an NDF provenance block

Description:

This routine can be called to stop subseqently accessed NDFs being added to the list of NDFs that will receive updated provenance information when NDG_ENDPV is called to end the current provenance block.

Invocation:

CALL NDG_HLTPV( NEW, OLD, STATUS )

Arguments:

NEW = LOGICAL (Read)

The new required provenance-recording state.

OLD = LOGICAL (Returned)

The provenance-recording state on entry to this routine.

STATUS = INTEGER (Given and Returned)

The global status.

Notes:

• A .FALSE. provenance-recording state means that any subseqently accessed NDFs will not be added to the list of NDFs to receive updated provenance information when NDG_ENDPV is called.

• A .TRUE. provenance-recording state means that any subseqently accessed NDFs are added to the list of NDFs to receive updated provenance information when NDG_ENDPV is called.