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)

Error – Handling with Exceptions

In this final chapter, we will learn how to perform error handling while system programming. Specifically, three different methods will be presented. The first method will demonstrate how to use POSIX-style error handling, while the second method will demonstrate how to use the standard C-style set jump exceptions. The third method will demonstrate how to use C++ exceptions, and the pros and cons of each approach will be discussed. Finally, this chapter will conclude with an example that demonstrates how C++ exceptions outperform POSIX-style error handling.

In this chapter, we will cover the following topics:

  • POSIX-style error handling
  • Exception support in C++
  • An example with Exception Benchmark