Segmenting a program into manageable chunks of code is fundamental to programming in every language. A function is a basic building block in C++ programs. So far, every example has had one function, main(), and has typically used functions from the Standard Library. This chapter is all about defining your own functions with names that you choose.
In this chapter, you will learn
What a function is and why you should segment your programs into functions
How to declare and define functions
How data is passed to a function ...
