RE: CEE0810 Error on Reallocate Statement

[Terrence Enger <tenger@xxxxxxxxxxxxxxxx>]

All,

Sorry for leaving this thread for so long.  I went off to run a small
experiment, and the experiment showed definitively that I knew less than
I thought I did.  The phonomenon is, ummm, not entirely unprecedented
<grin />.

On Thu, 2008-07-31 at 10:09 -0500, Kurt Anderson wrote:
> Sorry man, I thought helping her understand what the person's question
> meant about scoping would benefit her as a programmer.

Kurt,

Not your fault.  I suspect that I contributed to Scott's response by
questioning a couple of times about the scope of `wa`.

> Kurt Anderson
> Application Developer
> Highsmith
>
> -----Original Message-----
> From: rpg400-l-bounces@xxxxxxxxxxxx
> [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Scott Klement
> Sent: Wednesday, July 30, 2008 3:45 PM
> To: RPG programming on the AS400 / iSeries
> Subject: Re: CEE0810 Error on Reallocate Statement
>
> Who cares what the scope of 'wa' is?

Scott,

Lorraine has since answered, and her answer rules out the possibility I
was thinking of.  To wit, if wa retained its value from one call to the
next but arrayPtr was procedure-local, then the procedure could try to
realloc without having done the alloc.

   // allocate storage, if necessary
   if wa = *zero;                   
      wa = 100;                     
      arrayPtr = %alloc(wa * 32);     
   endif;                           
   .
   .
   .
   if b2 > wa;                         
     wa += 100;                        
     arrayPtr = %realloc(arrayPtr:wa * 32);
   endif;

Mind you, I do not know the meaning of `%realloc(*NULL)`.

Cheers,
Terry.

> The scope of 'arrayPtr' might be an issue -- if the symptoms were a
> little different -- but I can't see how the scope of 'wa' could ever
> matter!
>
> At this point, I'm betting that either the memory has already been
> dealloc/realloc or that there's memory corruption.
>
> Kurt Anderson wrote:
> > Lorraine, just as a fyi, wa is scoped locally (to the procedure) as 
> > opposed to globablly (to the service program).  Sorry I don't have 
> > anything otherwise helpful to pitch in here.