Learn C++ by Example

1 Hello again, C++!

This chapter covers

• Why C++ is relevant
• When C++ is useful
• What you need to know before reading this book
• How this book will bootstrap your knowledge of C++
• What you’ll learn in this book

C++ is an old but evolving language. In programming, you can use it for almost anything and will find its application in many places. In fact, C++’s inventor, Bjarne Stroustrup, described it as the invisible foundation of everything. Sometimes, C++ might be present deep inside a library of another language because it can be used for performance-critical paths. Furthermore, it can run in small, embedded systems, or it can power video games. Even your browser might be using the language. C++ is almost everywhere.

The language is compiled ...