RE: What happens to unused constants?

[Don <dr2@xxxxxxxxxxxx>]

Hmmm...learned something today.  Never ran into the problem and didn't
know that.

tks Bob...


On Fri, 3 Sep 2004, Bob Cozzi wrote:

> The debugger won't let you display CONST's anyway, whether or not they are
> in the program... so "keeping them" is really pointless.
> -Bob
>
>
> -----Original Message-----
> From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx]
> On Behalf Of Don
> Sent: Friday, September 03, 2004 12:47 PM
> To: RPG programming on the AS400 / iSeries
> Subject: Re: What happens to unused constants?
>
>
>
> Why would it throw it away?  Let's presume it's a program bug that you
> hadn't used a constant and needed it during debug...if thrown away you
> couldn't use it...
>
> you can always to a genopt on a program and look at the MI generated to be
> sure, but I think it's all kept...kinda like alot of defined but unused
> function keys, etc....
>
>
>
> On Fri, 3 Sep 2004 CWilt@xxxxxxxxxxxx wrote:
>
> >
> > If I've got a standard include that defines a bunch of constants, based or
> > not based data structures what happens when most of it is not referenced
> in
> > a given program/module?
> >
> > I assume the compiler throws away the unused stuff, so you are not wasting
> > space.
> >
> > Can anyone confirm this?  Does the behavior depend on debug level or
> > optimization level?
> >
> > Thanks,
> > Charles
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