Re: pointers in different storage models

[Barbara Morris <bmorris@xxxxxxxxxx>]

On 6/4/2010 5:44 AM, Schmidt, Mihael wrote:
> ...
>
> Now I have just read that in 7.1 RPG modules can be compile with the
> storage model *teraspace. Does that mean that the pointer in RPG will
> also be 8 byte and that the calling to the procedure might work with
> 7.1 because it is the same storage model?

No, even with storage model *teraspace, RPG will still only support 16 
byte pointers.

You will have to use 16 byte pointers in the parameter interfaces 
between C and RPG.  The C modules can use 8 byte pointers internally.

Here is a page from the C/C++ manual about specifying 8 or 16 byte 
pointers in prototypes:
http://publib.boulder.ibm.com/infocenter/iseries/v7r1m0/index.jsp?topic=/rzarf/prag_datamodel.htm

Here is a page from ILE Concepts about pointer conversions:
http://publib.boulder.ibm.com/infocenter/iseries/v7r1m0/index.jsp?topic=/ilec/sc41560685.htm