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On 9/26/2012 11:56 AM, Dave wrote:
... you win on performance because of the cycle

You only win a little bit on performance and you don't win much on program size either. For me, the most compelling reason to use a linear main is that all your RPG procedures look the same, except that one of them is designated as the first procedure to be called when the program is called.

The other big benefit is that a linear main procedure can be called recursively. Prior to being able to code a linear main, you could sort of get recursion using actgrp(*new), or you could have a CL or C pep module that called your RPG subprocedure.


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