Chapter 13
Foundation Functions and Data Types
The Foundation Framework is not only composed of classes, it also includes numerous functions, data types, and constants. Now you may be thinking, “Why do I need these additional APIs? After all, Objective-C is an object-oriented programming language and the Foundation Framework provides a complete set of classes.” Well, these APIs are, in fact, an important part of the Foundation Framework, and together they provide a variety of essential functionality for Objective-C software development. In this chapter, you will explore these APIs and the provided sample code to learn how they can be used in your programs.
Foundation Functions
The Foundation Framework defines a number of functions and function-like ...
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