Nice Subprocedures with RPG ON-EXIT
IBM is adding all kinds of new tweaks to RPG with each new release of IBM i. RPG ON-EXIT is a great example of a neat tweak to the RPG programming language.
Last year, IBM quietly introduced a rather neat new function called “ON-EXIT” to our sub procedures in RPG.
RPG ON-EXIT is a nice structured way of storing procedure house keeping and/or error catching.
ON-EXIT is available if you are running IBM i V7.2 or higher:
The ILE RPG compiler is enhanced with a new ON-EXIT opcode which begins the “ON-EXIT” section containing code to be run whenever a procedure ends, either normally or abnormally.
So, if you have code that you always want to run at the end of a procedure you can just put that in the ON-EXIT section.
So how does ON-EXIT work?
It works like this
RPG Programming for Beginners
RPG is the well known programming language on the IBM i platform. Earlier versions of RPG ran on the old AS/400 and iSeries machines in decades gone by… the beauty of RPG is that it is fully backwards compatible. Over the years RPG has evolved massively and now looks like a completely different language. Dive into this course to learn the basics, review old column based RPG, and modernize samples right up to modern RPGLE and SQLRPGLE code standards.
