RE: Pointer puzzle

[David FOXWELL <David.FOXWELL@xxxxxxxxx>]

The router program is no longer in the library list when control is returned to the caller, program A.

That couldn't be it though.
Could it?

> -----Message d'origine-----
> De : rpg400-l-bounces@xxxxxxxxxxxx
> [mailto:rpg400-l-bounces@xxxxxxxxxxxx] De la part de David FOXWELL
> Envoyé : lundi 5 octobre 2009 13:42
> À : RPG programming on the IBM i / System i
> Objet : Pointer puzzle
>
> Hi, I thought I had pointers sussed, but it seems not. Hope
> someone can help.
>
> I'm calling program B from program A via a router program
> with a pointer in and out as parameters.
> I've debugged and I can see that program B receives a value
> *NULL for the output parameter pointer. It initialises the
> pointer, it is returned to the router OK, but once back in
> the calling program A, if I do EVAL on the pointer, I get
> CPF8E17, Pointeur non défini pour l'emplacement référencé. (
> would someone give me the English version of that message? ).
>
> Then, when I try and use the DS based on the pointer, it says
> I'm trying to access something that no longer exists
> (MCH3402). I wonder if the problem is not the pointer but the
> fact that the router program has ended?
>
> I've already successfully tested program B, using a test
> program to call it directly, now I'm testing with the router.
>
> Thanks.