Re: Convert an MI program to RPG

["Simon Coulter" <shc@xxxxxxxxxxxxxxxxx>]

M
Hello Richard,

You wrote:
>First, can you change the declare for @OBJ to a system pointer then make
>sure that it is initialized to null before executing rslvsp function?  At
>one time, I did some real damage by not initializing my pointers first.  The
>return value is a system pointer.  The declaration showing in your message
>is for a space pointer.  They are definitely not the same thing.  In the old
>days, the error messages for MI were pretty bad.

No.  RPG doesn't support SYPs.  See my earlier response for why this works.  I 
wouldn't 
be doing this in RPG because there is no guarantee that the pointer behaviour I 
am 
exploiting will remain consistent.  This stuff should be done in MI or C.  All 
I wanted 
to prove was that it could be done.

>I suspect that the problem is going to be found somewhere around how RPG
>maps variables and types when it calls a C function.

Actually, in this case the problem is in how Bill is mapping the values due to 
not 
understanding what is happening at the MI level, nor what is happening in the C 
wrapper 
function, and not really what is happening in the RPG example.  Hopefully my 
earlier 
appends will clarify that.  There are only so many ways I can say the same 
thing.

Regards,
Simon Coulter.

«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»
«» FlyByNight Software         AS/400 Technical Specialists       «»
«» Eclipse the competition - run your business on an IBM AS/400.  «»
«»                                                                «»
«» Phone: +61 3 9419 0175      Mobile: +61 0411 091 400           «»
«» Fax:   +61 3 9419 0175      mailto: shc@flybynight.com.au      «»
«»                                                                «»
«» Windoze should not be open at Warp speed.                      «»
«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»«»
+---
| This is the MI Programmers Mailing List!
| To submit a new message, send your mail to MI400@midrange.com.
| To subscribe to this list send email to MI400-SUB@midrange.com.
| To unsubscribe from this list send email to MI400-UNSUB@midrange.com.
| Questions should be directed to the list owner/operator: dr2@cssas400.com
+---