RE: Variable length MODS

[Joel Fritz <JFritz@xxxxxxxxxxxxxxxx>]

I'm ok with pointers and procedures, but I'm not so sure about this fire
thing.

> -----Original Message-----
> From: Scott Klement [mailto:klemscot@klements.com]
> Sent: Monday, April 16, 2001 3:06 PM
> To: RPG400-L@midrange.com
> Subject: Re: Variable length MODS
> 
> 
> 
> 
> > What you said sounds right to me. If you simply want to use 
> pointers, forget
> > the DIM or OCCURS and just user pointer arithmetic and be 
> sure you don't
> > lose track of what you're trying to access vs what you 
> allocated memory for.
> 
> I agree with this as well.  If you don't want the 9999 limit, 
> don't use
> a MODS.  Just use a based data structure and pointer arithmetic.
> This is so easy to do on the V4Rx versions that you might as well!
> 
> (I used to do this on V3R2, using user spaces and a home-written
> "offsetptr" routine because I didn't have the ALLOC op-code or the
> ability to do direct pointer math, but needed a larger MODS)
> 
> The use of the OCCUR op-code is awkward to say the least.  Why bother
> with it?  
> 
> 
> > My only suggestion would be to comment thoroughly enough 
> for the next
> > programmer who may not be up on pointers and could go off 
> into left field.
> 
> That's true.  A lot of RPG programmers will go and run and hide under 
> the bed when they hear the word "pointer".   It's too bad...   But if
> we keep trying, eventually we'll get them to accept things 
> like pointers,
> procedures, and the discovery of fire...
> 
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