Re: MODS in subprocedures

["Peter Dow" <pcdow@xxxxxxxxx>]

Hi Jon,

While you're at it, I'd like to add a question or two<g>.

Since Phil is returning a recordset, presumably with a variable number of
records, what's the preferred method of doing so?

Seems like the first program would have to figure out how many records it's
going to get, or the max it wants returned, then allocate memory for the
MODS to hold them and pass the pointer to the MODS to the procedure, along
with the max number of records (unless there's a way for the procedure to
figure out how big the MODS is).

I haven't had to do anything like this yet, but it sounds interesting.

Curious,
Peter Dow
Dow Software Services, Inc.
909 425-0194 voice
909 425-0196 fax



----- Original Message -----
From: "Phil" <sublime78ska@yahoo.com>
To: <RPG400-L@midrange.com>
Sent: Wednesday, May 09, 2001 1:31 PM
Subject: RE: MODS in subprocedures


> Jon,
>
> What I am passing back is a result set of records.  Usually I define it as
> an external ds.  I just kept my example simple which I shouldn't have
done.
> Sorry for the confusion
>
> I know if I define the pointer outside of the subprocedure that it will
work
> and I understand why (I understood that before but somehow didn't see what
I
> did wrong).  I now understand also that if I define the pointer as static
> that I can define it within the subprocedure.
>
> What I am working on understanding now is the merits between passing the
> pointer to the subprocedure versus returning the pointer to the calling
> subprocedure.  For that matter, what are the merits of using a return
> argument at all?
>
> Phil
>
>
>
>
>
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