Book Image

Hands-On System Programming with C++

By : Dr. Rian Quinn
Book Image

Hands-On System Programming with C++

By: Dr. Rian Quinn

Overview of this book

C++ is a general-purpose programming language with a bias toward system programming as it provides ready access to hardware-level resources, efficient compilation, and a versatile approach to higher-level abstractions. This book will help you understand the benefits of system programming with C++17. You will gain a firm understanding of various C, C++, and POSIX standards, as well as their respective system types for both C++ and POSIX. After a brief refresher on C++, Resource Acquisition Is Initialization (RAII), and the new C++ Guideline Support Library (GSL), you will learn to program Linux and Unix systems along with process management. As you progress through the chapters, you will become acquainted with C++'s support for IO. You will then study various memory management methods, including a chapter on allocators and how they benefit system programming. You will also explore how to program file input and output and learn about POSIX sockets. This book will help you get to grips with safely setting up a UDP and TCP server/client. Finally, you will be guided through Unix time interfaces, multithreading, and error handling with C++ exceptions. By the end of this book, you will be comfortable with using C++ to program high-quality systems.
Table of Contents (16 chapters)

Learning to Program Console Input/Output

Console IO is essential for any program. It can be used to get user input, provide an output, and support debugging and diagnostics. A common cause of program instability also generally originates from poorly written IO, which is only exacerbated by the overuse of standard C printf()/scanf() IO functions. In this chapter, we will discuss the pros and cons of using C++ IO, commonly referred to as stream-based IO, compared to the standard C-style alternatives. In addition, we will provide a high-level introduction to C++ manipulators and how they can be used in place of standard C-style format strings. We will conclude this chapter with a set of examples designed to guide the reader through the use of both std::cout and std::cin.

The chapter has the following objectives:

  • Learning about stream-based IO
  • User-defined type-manipulators
  • An...