RE: Z-ADD or Eval?

[jerickson@xxxxxxx]

Title: RE: Z-ADD or Eval?

Don't forget CLEAR,..  but only for initialization to a fields' low value.  I'm not sure of any differences except when using different sized fields.  EVAL will fail upon truncation of fields where Z-ADD will not.

> Regards,
> Jon A. Erickson
> Sr. Programmer Analyst
> 800.COM Inc.
> 1516 NW Thurman St
> Portland, OR  97209-2517
>
> Direct: 503.944.3613
> Fax: 503.944.3690
> Web: http://800.com
>

-----Original Message-----
From: Jim Langston [mailto:jlangston@conexfreight.com]
Sent: Tuesday, August 22, 2000 12:22 PM
To: RPG400-L@midrange.com
Subject: Z-ADD or Eval?

I am trying to use all Evals in my programming just because it is much easier to read and understand.

My question is, however, should I be converting Z-ADDs to Evals?  I understand we use(d) Z-ADD
instead of MOVE because Z-ADD was more effiecient.  We could of used MOVE, but we used Z-ADD.
Now, if I have a statement (and I do):

      C   99              Z-ADD     *ZERO         EQSIZE

and I want to convert this to "modern" programming, should it become:

      C                   If       *IN99
      C                   Z-Add     *Zero         EqSize
      C                   EndIf

or should it become:

      C                   If       *IN99
      C                   Eval      EqSize = *Zero
      C                   EndIf

Any comments on this are appreciated.

Regards,

Jim Langston

+---
| This is the RPG/400 Mailing List!
| To submit a new message, send your mail to RPG400-L@midrange.com.
| To subscribe to this list send email to RPG400-L-SUB@midrange.com.
| To unsubscribe from this list send email to RPG400-L-UNSUB@midrange.com.
| Questions should be directed to the list owner/operator: david@midrange.com
+---