Re: Infinit loop in /free

["Wilbert van der Hoeven" <hoeveb@xxxxxxxxxxxxxxxx>]

If I was really programming an endless loop, I wouldn't be doing my job was
I?
Every loop you program is basically an endless loop, regardless how you
program the DO-statement. If you don't meet the condition that tells it to
end, it runs on forever.

I prefer this method (I'd rather have just a 'Do' instead of 'Do *Hival',
but Hans didn't give as this option), because I like to leave my do-loop
right after I meet a condition that makes me leave the loop (like EOF). I
think that is the most obvious place to do this. To me it is not obvious to
set an indicator and later test this indicator to see whether I should leave
the loop. You never know what happens to this indicator between the moment
it is set and the moment it is tested.

I can't see how anyone can object against using Leave and Iter. With goto's
you can (you don't don't have to) program spaghetti-code. Not with Leave or
Iter!!

BTW. I used to use dow 1=1, but that raised more eyebrows than Do *Hival.
Everybody I know immediately understood the meaning of it.

Wilbert

I was afraid I might be starting a holy war ;)


----- Original Message ----- 
From: "Joel Cochran" <jrc@xxxxxxxxxx>
To: "RPG programming on the AS400 / iSeries" <rpg400-l@xxxxxxxxxxxx>
Sent: Friday, November 21, 2003 6:23 PM
Subject: Re: Infinit loop in /free


> LOL, I guess there's always at least one exception!
>
> Joel
> http://www.rpgnext.com
>
>
> On Fri, 2003-11-21 at 21:57, Peter Dow wrote:
> > Hi Joel,
> >
> > Reminds me of a class I took 30+ years ago where the instructor brought
up
> > that same question ("I too must question the logic of coding an endless
> > loop") and answered it with another question "Under what circumstances
would
> > you want a  program controlling a heart-lung machine to end?"
> >
> > Regards,
> > Peter Dow
> > Dow Software Services, Inc.
> > 909 793-9050 voice
> > 909 793-4480 fax
> > 909 522-3214 cell
> >
> >
> >
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