RE: Array overlay

[rob@xxxxxxxxx]

By MaxPtyA do you mean all the MaxPty1 through MaxPty9 fields?  If so, then
she needed it for two reasons:
1)  To say how long MaxPtyAlpha is.  The length of MaxPtyAlpha is defined
as the sum of the lengths of the MaxPtyA fields.  Since the dimension of
MaxPty is determined by the length of MaxPtyAlpha you'd get an infinite
loop try to determine anything from that if you didn't have the MaxPtyA
fields.
2)  Because I said so.  Actually I did it originally because some people
might like field names instead of the array, thus I defined both the
separate field names, and the array.  And she just expanded upon my example
by taking advantage of a 'feature' I'd already included.

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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Jon,

Thanks for the reply.  The group field is new to me, but I think I
understand it.

However, I still don't understand why Barbara needed both the MaxPtyAlpha
and the MaxPtyA fields.

Would not the following have worked?

D  MaxPtyAlpha
D    MaxPty1                    10i 0 Overlay(MaxPtyAlpha)
D    MaxPty2                    10i 0 Overlay(MaxPtyAlpha:*next)
...
D    MaxPty8                    10i 0 Overlay(MaxPtyAlpha:*next)
D    MaxPty9                    10i 0 Overlay(MaxPtyAlpha:*next)
D    MaxPty                     10i 0 Overlay(MaxPtyAlpha)
D                                     Dim(%Div(%Size(MaxPtyAlpha)
D                                             :%Size(MaxPty1)))

If it wouldn't is it simply a limitation of the compiler or is the a reason
I don't see?

Thanks,
Charles


> -----Original Message-----
> From: Jon Paris [mailto:Jon.Paris@xxxxxxxxxxxxxx]
> Sent: Friday, July 23, 2004 3:04 PM
> To: rpg400-l@xxxxxxxxxxxx
> Subject: RE: Array overlay
>
>
> I'm an "anyone else" - will I do?
>
>  >> Can you provide some more detail on what is going on here.
> Specifically, what's the relationship/use of MaxPtyAlpha and MaxPtyA?
>
> Check out the article we wrote on the subject of "D-Spec
> Discoveries".  It
> describes this situation and some other interesting features
> of D-specs.
> You'll find the link towards the bottom of this page:
> http://www.partner400.com/ArticlesEXTRA2.htm
>
> Jon Paris
> Partner400
> www.Partner400.com
>
>
> --
> This is the RPG programming on the AS400 / iSeries (RPG400-L)
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