RE: Pointer / Based issue

> I like how it clarifies exactly what you're changing. It
> would be nice if there was Pascal's "with" op code. This would let you
> do something like:

What's unclear about 'featTypeDS.type'?  Better yet, why not 
'widget.properties.feature' or 'widget.properties.type'?

If one really wants to put type information varible names, the "Hungarian 
notation" method is the most sane way that I have encountered.  See <link> 
http://www.apostate.com/programming/hugarian/ </link>. The example would 
become something like:


> >       d sFeatType      ds                  Qualified
> >       d   cFeat                       3    dim(1000)
> >       d   cType                       2    dim(1000)


I don't claim to be an expert, so the above may be not quite right, but 
you get the idea - there is a one character type qualifier on the front of 
each variable name.

Personally, I tend to think that such conventions are somewhat cumbersome, 
and probably cause more work in the long run than just looking up the 
defined type of the variable (much easier if you have an outline view!).

Alan's comment:
>> Why is this funny? If you have 2 fields on a file also called dsFeat &
>> dsType, but you do NOT want one set to overwrite the other set, this
>> methodology is EXACTLY what you want.

is certainly a valid one.  I would argue however, that it is more a work 
around to get the functionality of namespaces in RPG, rather than an ideal 
way to use a data structure - which leads to cumbersome naming.  Also, is 
it necessary to have the field name in the file and the name of the second 
type be exactly the same?

Just MHO,
Adam




rpg400-l-bounces@xxxxxxxxxxxx wrote on 24/05/2006 12:04:35 PM:

> Not really and I like how it clarifies exactly what you're changing. It
> would be nice if there was Pascal's "with" op code. This would let you
> do something like:
> 
> With FeatTypeDS 
>   .dsFeat(x) = 'foo'
>   .dsType(x) = 'br'
> EndWith
> 
> I have Pascal the syntax slightly wrong (I know the lines have to end
> with something, I don't recall what it is), but I think this illustrates
> it.
> 
> Matt
> 
> -----Original Message-----
> From: rpg400-l-bounces@xxxxxxxxxxxx
> [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of rob@xxxxxxxxx
> Sent: Wednesday, May 24, 2006 11:53 AM
> To: RPG programming on the AS400 / iSeries
> Subject: RE: Pointer / Based issue
> 
> Just picking nits here, but does anyone else find it funny to prefix 
> fields within a QUALIFIED data structure?
> >       d FeatTypeDS      ds                  Qualified
> >       d   dsFeat                       3    dim(1000)
> >       d   dsType                       2    dim(1000)
> 
> So now I have FeatTypeDS.dsFeat and FeatTypeDS.dsType?
> 
> 
> Rob Berendt
> -- 
> Group Dekko Services, LLC
> Dept 01.073
> PO Box 2000
> Dock 108
> 6928N 400E
> Kendallville, IN 46755
> http://www.dekko.com
> 
> 
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