Re: Reason for allocating memory

["Alan Cassidy" <acassidy@xxxxxxxxxxxxxxxxx>]

Thanks for the clarification. This is the way I have regarded dynamic memory
allocation. I try to keep the code simple, especially since they always want
it better! quicker! faster! now!



----- Original Message -----
From: "Hans Boldt" <boldt@ca.ibm.com>
Newsgroups: gmane.comp.lang.as400.rpg
To: <rpg400-l@midrange.com>
Sent: Friday, July 26, 2002 3:20 PM
Subject: Re: Reason for allocating memory


> Jon Paris wrote:
> > Absolutely - I would always use dynamic memory when I didn't know how
large
> > something (like an array) might become.  But it is an unusual situation.
If
> > I want a fixed length field of 256 - I specify it.  The point I was
making
> > was that the programmer in question didn't know RPG - not that dynamic
> > memory was a bad thing - just that it was a bad _RPG_ example.
>
> I've argued this point before.
>
> If you're likely to have a relatively small amount of dynamic data,
> I'd just stick with a static array, instead of dynamically
> allocating storage based on the actual number of elements.  Note
> that if you dynamically allocate and reallocate storage as your
> number of elements changes during processing, you're incurring a
> fairly heavy overhead for that processing.
>
> On the other hand, if you have a large amount of dynamic data,
> you're probably better off using a database file.
>
> Either way, you end up not having to deal with those nasty pointers,
> the "goto" of data structures.
>
> Cheers!  Hans
>
>
>
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