June 1, 2022

MC RPG Developer

Lead Article - Programming

TechTip: Date Arithmetic in CL Programs

Date arithmetic in CL programs is limited and lacks the simplicity and scope found in RPG. This article provides a command that brings RPG date capabilities to CL programs.

By Sam Lennon

Date handling and arithmetic in RPG is superb, capable, and straightforward. (I've written about it before in Calculate Begin and End Dates for Any Month and here in RPG IV Legacy Dates Cheat Sheet). But when it comes to dates in a CL program, there are limited capabilities, and you need more coding.

Feature Article - Programming

Introducing Free-Format RPG IV, Part 2

Free-Format Operation Codes

By Jim Martin

Editor's Note: This article is excerpted from chapter 4 of Free-Format RPG IV: Third Edition, by Jim Martin.

Table 4-1 lists the 62 operations that free-format RPG IV supports as of V7.1. All built-in functions are also available to you in free format. Many built-in functions, such as %Check, %Lookup, and %Scan, provide operation code functionality. Some, such as %Check, provide exactly the same function as an operation code, while others, such as %Lookup, provide additional capabilities.

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