RE: IFS Open Help...

To allow you to specify either:

szData

or

%addr(szData)

For the parameter.


-Bob Cozzi
www.i5PodCast.com
Ask your manager to watch i5 TV



-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On
Behalf Of AGlauser@xxxxxxxxxxxx
Sent: Friday, March 09, 2007 1:26 PM
To: RPG programming on the AS400 / iSeries
Subject: RE: IFS Open Help...

Bob Cozzi wrote on 09/03/2007 14:16:01:

For example, suppose you have a subprocedure that accepts data in 
parm 1 (which
is "* VALUE OPTION(*STRING) and the length of that data in parm 2. 
In some situations, the data being sent to the proc is just text so 
you pass it
like this:

   foo( szData : %len(szData));

The system passes the data to the subproc, and it can be accessed. The 

Null

terminator is added, but can be ignored because the second parm is 

specified.

I'm probably missing something obvious, but why would you bother putting 
option(*STRING) on the prototype in this sort of situation?  Isn't the 
whole point of the null teminator so that you _don't_ have to bother 
passing the length?

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