Re: [bug #15690] Refactor /MISSING subcommands.

[John Darrington]

It sounds like your idea is essentially the same as mine.  In your
approach the predicate function takes more variables, whereas mine
relies on static data.  Avoiding static data is of course a good
thing.  The price however would be complicating the user interface of
the casereader_get_reader function, since all the variables etc would
have to be passed into it.  A compromise would be to have a single
void *aux parameter, but that too is not without its disadvantages.

J'


On Tue, Sep 26, 2006 at 01:55:44PM +0000, Ben Pfaff wrote:
     
     Follow-up Comment #3, bug #15690 (project pspp):
     
     My thought was simply to write a function that takes a set of variables, a
     case, and an enumeration.  Depending on the enumerated value specified, it
     would return true if any of the variables were missing, or if all of the
     variables were missing, or always return false regardless.
     
     This could be combined with your approach: my function is usable as one of
     your predicates if done properly.
     


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