RE: Passing a path name through C open function.

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx 
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Scott Klement
Sent: Friday, July 14, 2006 2:30 AM
To: RPG programming on the AS400 / iSeries
Subject: Re: Passing a path name through C open function.

However, if you want to use only one variable for filename 
(and I highly 
recommend that) then do this:

   d crtXMLDoc       PI             1N
   d  FlrPth                         *   value options(*string)
   d  ErrId                              like(ref.msgid)

and then open it like this:

    FilDes = open( FlrPth
                 : O_CREAT+O_TRUNC+O_WRONLY
                 : RW*OWNER + RW*GROUP + RW )

That way, the caller can pass any variable (either varying or 
fixed) of 
any length to the subprocedure, and there's no limitations.  The 
disadvantage, however, is that the caller has to remember to trim the 
blanks off, which seems to be confusing for a lot of people.  
So as an 
alternative, you could do it this way:

Mike,

I agree with all of Scott's advice.  However, if you happen to be at
v5r4, then you can use the following instead:

   d crtXMLDoc       PI             1N
   d  FlrPth                         *   value options(*string:*trim)
   d  ErrId                              like(ref.msgid)

Which removes the requirement that the caller remember to %trim the
blanks off.


HTH,
Charles