Chapter 3.RPG IV Functions and Features

Chapter Overview: While the previous chapter focused primarily on the layout changes for RPG specification sheets, this chapter discusses the functional enhancements introduced with the RPG IV language definition that include:

  • Expanded naming capabilities
  • Mixed-case source code (not case-sensitive)
  • Built-in functions
  • Format-free arithmetic and logical expressions
  • New and renamed operation codes
  • Support for new data types
  • Raised and removed limits

Most of the enhancements are illustrated with comprehensive examples. Some features, for example, the new date and time support, are discussed in more detail than other more obvious and easy-to-use functions. For more thorough information, please refer ...

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