Re: understanding inz in PI

Thanks a lot. If in my procedure fparm1, fparm2, fparm3 are not going to change upon successful completion of calls to Myprocedure1 and Myprocedure2, so I need to modify them with const right.
 
Upon successful completion of Myprocedure1 xmlDS gets populated, do I need to define var?
 
Upon succesful completion of Myprocedure2  DSfile1, DSfile2, DSfile3,DSfile4 get populated, should I need to define as var?
 
 
I am going to code
 clearDSfile1;
 clear DSfile2;
 clear DSfile3;
 clear DSfile4;
in Myprocedure2. Thanks !
                           
 p Myprocedure b export
d procedure pi N

d fparm1   10 0 const
d fparm2   2a    const
d fparm3   22 0 const
d xmlDS         likeds(ds_xml) dim(333)
d DSfile1       likeds(file1ds)
d DSfile2       likeds(file2ds)
d DSfile3       likeds(file3ds)
d DSfile4       likeds(file4ds)
d DSerror        likeds(error_DS)

/free

if Myprocedure1(fparm1:fparm2:fparm3:   
                     :xmlDS:DSerror);

if Myprocedure2(fparm1:fparm2:fparm3:   
                    :xmlDS:DSFile1:DFile2:DSFile3:DSFile4:DSerror);


                      
 endif;

endif;

  

/end-free                   

From: "Anderson, Kurt" <KAnderson@xxxxxxxxxxxx>
To: RPG programming on the IBM i / System i <rpg400-l@xxxxxxxxxxxx>
Sent: Monday, 14 May 2012, 19:24
Subject: RE: understanding inz in PI

Amanda,

Whenever I have output-only parameters, the first thing I usually do is clear/initialize the output.  If you can guarantee a value will always be assigned to an output variable, this initialization is not necessary.

Input - parameters that won't change
Input/Output - parameters with a value that the procedure needs, and the parameter value may change
Output - the parameter is used to return data to the caller only.

I don't see Const on any of the parameters in your PI.  The procedure can modify all of the parameters sent to it?

-Kurt