× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.


  1.  Home
  2. RPG400-L
  3. March 2006

Re: Quick question (and I think it's come up before)



---
Scott Klement  http://www.scottklement.com

On Fri, 17 Mar 2006, Simon Coulter wrote:


Although both programs and procedures allow optional parameters only
procedures allow omissable ones.
Actually, you can use omissible parameters when calling a program as well. For example: 

     D TESTPGM         PR                  extpgm('TESTPGM')
     D   Parm1                        1A   options(*omit)
      /free
          TESTPGM(*OMIT);
          *inlr = *on;
      /end-free
Try it yourself. Here's the code for a trivial program that receives an omissible parameter: 

     D TESTPGM         PR                  extpgm('TESTPGM')
     D   Parm1                        1A   options(*omit)
     D TESTPGM         PI
     D   Parm1                        1A   options(*omit)
      /free

            if %addr(Parm1) = *NULL;
               dsply ('Parm 1 was omitted');
            else;
               dsply ('Parm 1 = ' + Parm1);
            endif;

            *inlr = *on;

      /end-free

As an Amazon Associate we earn from qualifying purchases.

This thread ...
Follow-Ups:
Replies:
Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2025 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.