Re: Good places to use "The Cycle" in today's RPG was->Re: FW: Niftiest thing(s) you have done in RPG ILE or /FREE

In that case then IF and Do and For and Select are nothing but GOTO's with
an implicit tag. No, I think iter and leave are different than goto.

Rob Berendt
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From:
smorrison@xxxxxxxxxxxxxxxxxxx
To:
RPG programming on the IBM i / System i <rpg400-l@xxxxxxxxxxxx>
Date:
01/09/2009 12:03 PM
Subject:
Re: Good places to use "The Cycle" in today's RPG was->Re: FW:
Niftiest thing(s) you have done in RPG ILE or /FREE
Sent by:
rpg400-l-bounces@xxxxxxxxxxxx



I am amazed at the number of people who say that ITER and LEAVE are good
op-codes, but GOTO is a nasty op-code! What do you think ITER and LEAVE
are, except a fancy GOTO without an explicit TAG? I felt the same way
about CABxx (Case and Branch) when that was the popular new op-code!

Steve

Steven Morrison
Fidelity Express





James Lampert <jamesl@xxxxxxxxxxxxxxxxx>
Sent by: rpg400-l-bounces@xxxxxxxxxxxx
01/09/2009 10:40 AM
Please respond to
RPG programming on the IBM i / System i <rpg400-l@xxxxxxxxxxxx>


To
RPG programming on the IBM i / System i <rpg400-l@xxxxxxxxxxxx>
cc

Subject
Re: Good places to use "The Cycle" in today's RPG was->Re: FW:
Niftiest thing(s) you have done in RPG ILE or /FREE






GUY_HENZA@xxxxxxxxxxxxxx wrote:

I was taught structured programming in 1980 and I have never written

a new

program with a GOTO, ITER or LEAVE. I consider them to be poor

program

design.

Hmm. Sounds like you were taught by a fanatical disciple of Wirth.

There is nothing inherently bad about ITER or LEAVE, provided they are
used in situations (e.g., brute-force table look-up) in which premature
exit of a loop is the norm, and completion of the loop is the exception.

--
James H. H. Lampert
Touchtone Corporation

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