Internationally recognized RPG expert Bob Cozzi has updated his classic work on RPG IV to include all of the new function and features that have been included in the language since 1996 - including the new D-specs plus more than 30 new opcodes and built-in functions. Cozzi takes you through the language from the very foundations to the most advanced technique. At the core of the value of this book are the chapters on Built-In Functions and opcodes. Cozzi details each BIF and opcode with a syntax table that gives you the information you need at a glance plus an explanation of the how and why of usage. And this isn't just a book on theory and rules. Cozzi includes over 100 charts and tables that show you how the rules apply. He also includes samples of the functions and operations in real-life code examples - over 350 individual examples. 
This is a book that you will turn to again and again as you program in RPG IV. Upon completion, you will understand the foundations of RPG IV including structure, specifications, and opcodes, work with each of the specification formats, integrate RPG with DDS specifications for files and displays, program expressions in assignment, declarative, and compare statements, work with parameters and return values, program using the rich set of built-in functions, process full procedural files sequentially and randomly, and use program and file status codes. 
This book also covers the following: working with date, time, and timestamp opcodes, using operation extenders, program both embedded and external subprocedures, and knowing how to export global variables. In addition, you will know how to export global variables, and understand how to optimize RPG programs for performance, control program logic without indicators, program with modular design, use data areas effectively, define a prototyped subprocedure, and have a complete reference to all BIFs and OpCodes in RPG IV.

The Modern RPG IV Language, 2nd Edition

Computers & Technology

Robert Cozzi

Programming

Mc Press

Cozzi on everything RPG! What more could you want? In this fourth edition of The Modern RPG IV Language, internationally recognized RPG expert Bob Cozzi takes his classic best seller to a whole new level. At close to 700 pages, this edition covers all of the new functions and facilities available in V5R4 RPG IV while keeping the straightforward, no-nonsense style that has kept this book on the best-seller list for almost 20 years. This new edition is guaranteed to keep Bob Cozzi as the leading expert on RPG, and his book the one turned to by countless developers worldwide. This new edition of The Modern RPG IV Language is packed with new information including new, never-before published information on coding free-format RPG IV. Chapter 12 delves into free-format in detail as he discusses MOVE alternatives, date and time conversions, data structures, and more. And to give you even more exposure to free-format, he has converted many of the examples throughout the book to free-format code. Add to that XML, CGI, and subprocedure information, and you have a book that no "modern" RPG programmer can be without. Even with all the new material, the basic concept of the book remains the same. As with previous editions, The Modern RPG IV Language, 4th Edition takes you through RPG IV, from its foundation to its most advanced techniques. At the core of this book are its chapters on built-in functions and op codes. In these chapters, Cozzi details each built-in function and op code with syntax tables that give you all the information you need at a glance plus examples to help you as you code. This is much more than just a book on rules, however. Bob includes more than 400 charts and tables to show how those rules apply and provides more than 500 real-life code examples of functions and operations. You’ll turn to this book again and again as you program in RPG IV. It is the quintessential reference for every RPG programmer. What's New in This Edition? &gt; Free-format syntax, including an entire chapter focused on this highly popular subject &gt; Free-format examples throughout the book &gt; Expanded information on subprocedures XML support, including new BIFs and op codes &gt; Web programming with RPG, including CGI APIs and URL encoding &gt; Updated and revised content throughout the book to cover i5/OS V5R4 Within the pages of this book, you will find: • The basics of RPG IV, including data types, indicators, constants, and directives • Detail on all of the specification types • A complete discussion of expressions and how they should be used • Every built-in function • Every op code • Options for organizing your program with source files, modules, and storage • A discussion on modern operation code optimization • An explanation of structured programming and how to apply it effectively in RPG • Instructions on how to code inter-module communications • Everything you need to know about procedures • An entire chapter on the alternate syntax options now available—most notably Free-Format

The Modern RPG IV Language

Programming Languages

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Books by Robert Cozzi

See the best price to sell, buy, or rent books by Robert Cozzi. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

The Modern RPG IV Language, 2nd Edition

The Modern RPG IV Language