Re: ILE RPG pointers

[Hans Boldt <boldt@xxxxxxxxxx>]

JCarreras@xxxxxxxxxx wrote:
> Hi,
>
> Does someone know how I can insert string data into pointer's field with
> ILE RPG language?
>
> I need to insert an string data into Pointer field, so I should change
> size's field, but I don't knows how do it.

Questions like this are best asked in the RPG400-L mailing list.

But to get to your question, I'm not really sure what you're asking, 
so I might not have the answer you're looking for. Clearly, you 
can't put string data into a pointer variable. So I assume you have 
a pointer to some string data and you want to insert into that area.

*If* you know the full extent of the particular storage pointed at 
by the pointer, you can define a BASED character variable based on 
that pointer, and then you can manipulate that BASED variable. You 
can use the %REPLACE built-in function to insert text into some 
string by specifying 0 as the 4th argument.

That is, if you know your pointer points at an area of, say, 100 bytes:

D bstr        s              100a   based(ptr)
 /free
     bstr = %replace('char to insert':bstr:startpos:0);
 /end-free

But I'm not sure if that really does what you want. If not, please 
provide more detail of what you're trying to do and follow up on 
RPG400-L.

Cheers! Hans