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)

System Types for C and C++

With a system program, simple things, such as integer types, become complicated. This entire chapter is devoted toward common problems that arise when performing system programming, especially when performing system programming for multiple CPU architectures, operating systems, and user space/kernel communications, such as system calls.

This chapter consists of the following topics:

  • An explanation of the default types that C and C++ provide, including types that most programmers are familiar with, such as char and int
  • A review of some of the standard integer types provided by stdint.h to address limitations with the default types
  • Structure packing and the complications associated with optimizations and type conversions