Introduction

In the previous chapter, we saw how we can use functions to combine basic operations into units with a clear meaning. Additionally, in the first chapter, we saw how, in C++, we can store data in basic types, such as integers, chars, and floats.

In this chapter, we will be covering how to define and declare classes and how to access member functions of a class. We will explore what member and friend functions are and how to use each in a program. Later in the chapter, we will look at how constructors and destructors work. At the end of the chapter, we will explore functors and how you can use them in your programs.