Re: UDS & Allocations

Buzz,
You can define the LDA in RPGIII using the *NAMVAR DEFN in your "C" specs.
The following is an example:
ILDA DS
C *NAMVAR DEFN *LDA LDA
C IN LDA

By specifing *LDA in factor 2, you are indicating the the Local Data Area is to be used.
The UDS on the "I" spec indicated an implictly defined Data Area Data Structure. By leaving out the name on the "I" spec, the system understood that it was to use the Local Data Area.
The use of UDS to define a Data Area Data Structure implied a Read (IN) at the start of the program and a Write (OUT) at the end.

There is no requirement for using that method other than the desire to avoid the *NAMVAR statement and coding the IN and OUT functions yourself.

Hope this helps,

Jeff Young
Sr. Programmer Analyst
IBM -e(logo) server Certified Systems Exper - iSeries Technical Solutions V5R2
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----- Original Message ----
From: Jerry Adams <jerry@xxxxxxxxxxxxxxx>
To: RPG programming on the AS400 / iSeries <rpg400-l@xxxxxxxxxxxx>
Sent: Wednesday, November 28, 2007 12:19:03 PM
Subject: Re: UDS & Allocations

Buzz,

Did you mean RPG III? RPG IV is not OPM.

If it is RPG III, is converting it to IV out of the question? Once it's
in IV, you can do what Charles suggested.

* Jerry C. Adams
*IBM System i Programmer/Analyst
B&W Wholesale Distributors, Inc.* *
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Buzz Fenner wrote:

Charles, the program in question is an OPM RPG IV program. I'm unaware of
an alternate way to define the data area data structure other than to use
"UDS".

Buzz Fenner
Systems Analyst/Network Administrator
870.930.3374
mailto:bfenner@xxxxxxxxxxxxxxxx



message: 5
date: Wed, 28 Nov 2007 09:54:47 -0500
from: "Wilt, Charles" <WiltC@xxxxxxxxxx>
subject: RE: RPG400-L Digest, Vol 6, Issue 1131

Buzz,

There's an implicit IN *LOCK done by the cycle, along with an implicit OUT,
on a UDS.

To prevent, remove the U and use the DTAARA keyword on the define.

HTH,
Charles







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