Chapter 7. Defining Data and Prototypes

ILE RPG allows you to define the following items:

• Data items such as data structures, data-structure subfields, standalone fields, and named constants. Arrays and tables can be defined as either a data-structure subfield or a standalone field.
• Prototypes, procedure interfaces, and prototyped parameters

This chapter presents information on the following topics:

• General considerations, including definition types, scope, and storage
• Standalone fields
• Constants
• Data Structures
• Prototypes, parameters, and procedure interfaces