Re: calling procedures from cl programs

Hans,

I think everyone has spent a lot of time on these incompatibilities.  One 
question though.  Is there a way to return an Integer to CL?  If they use 
the "C" calling convention, you would think this could be done.  It seems 
to always come back to the "Rochester" people.  Someone suggested 
on the Midrange-L list that in-line commands be supported, maybe this 
isn't such a bad idea.

If the prototype change can fix it by supporting a calling convention option 
on return variables, when can it be done?  Sooner is better, because I will 
have a lot less to convert.

David Morris


>>> <boldt@ca.ibm.com> 03/16/99 07:37AM >>>


Jon wrote:
>David, as others have suggested the simple answer is to return a 2+ char
>variable from the RPG and only use the first character.  Why CL chose to
go with
>the way that C did things rather that the RPG method - or why they don't
offer
>compiler options is beyond me.  Perhaps a mailing campaign is called for!!
>
>RPG is planning to document these things but a fix from CL and/or RPG
would be
>much better.  Hell is much more likely to freeze over than Rochester is to
fix
>CL so ...... it's down to those nice folks in Toronto ...... Hans are you
>listening ?

mmm zzzzz  grmbmm er uh wha?  I'm awake!  I'm awake!  Yes, I'm
listening.

We can't "fix" this since there are a couple of programs out there
that depend on the current behaviour.  You know how sticky we are
with release-to-release compatibility.

However, you do know that we are aware of the "problem".  We're
currently looking at ways to resolve this.  Since different
languages have different parameter passing and return value
protocols, we are looking into adding some options on the
procedure prototype definition.

Cheers!  Hans

Hans Boldt, ILE RPG Development, IBM Toronto Lab, boldt@ca.ibm.com 



* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* This is the RPG/400 Discussion Mailing List!  To submit a new         *
* message, send your mail to "RPG400-L@midrange.com".  To unsubscribe   *
* from this list send email to MAJORDOMO@midrange.com and specify       *
* 'unsubscribe RPG400-L' in the body of your message.  Questions should *
* be directed to the list owner / operator: david@midrange.com          *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *