NDG_HIDEPROV - Hide an ancestor in a provenance structure

Description:

This function flags a specified ancestor as "hidden". The only effect this has is that the ancestor will not be included in Provenance structures created by the NDG_COPYPROV function.

Invocation:

CALL NDG_HIDEPROV( IPROV, IANC, STATUS )

Arguments:

IPROV = INTEGER (Given)

An identifier for a structure holding the provenance information read from an NDF, as returned by ndgReadProv

IANC = INTEGER (Given)

The index of the ancestor NDF to be hidden. The value is used as an index into the ANCESTORS array. An error will be reported if the value is too large, or is less than 1 (the main NDF cannot be hidden).

STATUS = INTEGER (Given and Returned)

The global status.