Here is the ultimate guide to writing RPG IV programs with functions in the free-format style. Let RPG expert and bestselling author Jim Martin show you the way. Want to generate a random number, manipulate a character string, or determine the number of elements in a data structure? There's a function for that. Jim will even show you how to write your own custom built-in functions (BIFs).
In this book, you will discover the role of functions in free-format RPG IV. Jim explains the details of BIFs and explores the use of C language functions, do-it-yourself functions (subprocedures), and prototyping and procedure interfaces for function connectivity of RPG IV main procedures with subprocedures and other modules. Because functions rely heavily on ILE, the book examines those ILE concepts that connect the parts of a multi-functional program, such as binding, import/export of data, service programs, and binding directories. In addition, you?ll find how to prototype IBM's APIs.
Modular programming is important, and it is powerful. Programmers need to understand modular concepts in depth, including all the interfacing tools needed to make programs perform well. Inside this book, you will find everything a free-format RPG IV programmer needs to know about using existing RPG IV BIFs, writing new functions, leveraging ILE concepts to use C functions, and using IBM APIs as functions.
With Functions in Free-Format RPG IV, you will:
|Author Name:||Jim Martin|
|Publication Date:||June 1, 2009|
|Product Dimensions:||7 x 0.4 x 9 inches|
|Shipping Weight:||0.55 pounds|
Product Look Inside the Book Author Bio Specifications This bookÃÆÃ¢â¬Å¡ÃâÃÂ isÃÆÃ¢â¬Å¡ÃâÃÂ especially geared toward programmers working on older IBM i systems and canÃÆÃ¢â¬Å¡ÃâÃÂ an help you make the transition from coding in...
Product Look Inside the Book Author Bio Specifications Traditional fixed-format RPG programmers everywhere are embracing the increased productivity, better readability, and easier program maintenance that comes with the free-format...