June 1, 2022
- LEAD ARTICLE: TechTip: Date Arithmetic in CL Programs
- FEATURED ARTICLE: Introducing Free-Format RPG IV, Part 2
- NEWS HIGHLIGHT: IBM to Grant $5 Million in-kind for Public Schools Globally to Better Prepare for Growing Ransomware Threat
- FEATURED EVENT: How To Run IBM i Enterprise Workloads in the Cloud
- WHITE PAPER: Why Migrate When You Can Modernize?
- FEATURED VIDEO: Barcode400
- EVENT: OCEAN TechCon22 will be taking place July 21-23, 2022!
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.
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.
Explore the main considerations you should be aware of before embarking on a (migration or modernization) project. Take a deeper dive into business motivations and factors that could potentially influence your decision to migrate or modernize your existing IT platform and its risks.
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