RE: RPG - conversion vs re-write

[Bob Cozzi <BobCozzi@xxxxxxx>]

Hans,

>>Actually, the example wouldn't work for another reason as well.  The
>>"null flag" is associated with specific fields and is not passed when
>>passing the field as a parameter.

That's it.  I quit!

Did you just say that the %NULLID(myDate) built-in is not allowed within an 
RPG IV subprocedure? If you did, I'm gonna have to take some 
Dramamine!!!!!!!!!!

So to check for a "null" date we have to use %NULLID() but only in 
main-line calcs. Okay, then I state my point again. We have NO support for 
null date values in RPGIV at this point in time. %NULLID is restricted to 
mainline calcs.

;-( ;-(;-( ;-(;-( ;-(;-( ;-(;-( ;-(;-( ;-(


Bob Cozzi
Bob@RPGIV.COM
www.rpgiv.com
AS/400 Books:  http://www.rpgiv.com/as400Books.html


On Friday, September 12, 1997 8:48 AM, Hans Boldt 
[SMTP:hboldt@VNET.IBM.COM] wrote:
> Bob Cozzi <BobCozzi@ibm.net> wrote
> >I wrote that procedure ad-hoc to illustrate an "IsNull" procedure would 
be
> >a simple thing to write. But as I also pointed out, I wasn't sure if the
> >1-digit zoned numeric return value would work.
>
> Actually, the example wouldn't work for another reason as well.  The
> "null flag" is associated with specific fields and is not passed when
> passing the field as a parameter.  Coding NULLIND(PARM) within the
> procedure will get a compile error since PARM is not defined as null-
> capable.  This is a more fundamental restriction.
>
> >So, when do we get BOOL data types (aka, Indicator fields) in RPG IV?
>
> It's coming.  It's just not in V4R1.
>
> Hans Boldt, ILE RPG Development, IBM Toronto Lab, hboldt@vnet.ibm.com
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