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  2. RPG400-L
  3. September 2008

Re: Question regarding Trigger programs and recursive calls

CL also supports recursion. So you might consider a CL main procedure and RPG subprocedures.

C would work as well (like Charles said) but if you happen to work in a shop that doesn't have C expertise, you may find CL to be a more palatable alternative.


Charles Wilt wrote:
Note that RPG _programs_ (ie. mainline Program Entry Procedures) don't
support recursion, thus you'll often run into trouble using them as
trigger programs.

However, RPG IV _procedures_ do support recursion. In addition, C
programs and procedures support recursion. So, one thing you can do
is build a small C module that contains the C main procedure that
calls an RPG IV procedure to do the actual work.

If you'd like, you can use Alan Campin's trigger mediator, the most
recent version supports recursion via a front end C mainline as
descibed above.

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