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C++ Programming for Linux Systems

You're reading from  C++ Programming for Linux Systems

Product type Book
Published in Sep 2023
Publisher Packt
ISBN-13 9781805129004
Pages 288 pages
Edition 1st Edition
Languages
Authors (2):
Desislav Andreev Desislav Andreev
Profile icon Desislav Andreev
Stanimir Lukanov Stanimir Lukanov
Profile icon Stanimir Lukanov
View More author details

Table of Contents (15) Chapters

Preface 1. Part 1:Securing the Fundamentals
2. Chapter 1: Getting Started with Linux Systems and the POSIX Standard 3. Chapter 2: Learning More about Process Management 4. Chapter 3: Navigating through the Filesystems 5. Chapter 4: Diving Deep into the C++ Object 6. Chapter 5: Handling Errors with C++ 7. Part 2:Advanced Techniques for System Programming
8. Chapter 6: Concurrent System Programming with C++ 9. Chapter 7: Proceeding with Inter-Process Communication 10. Chapter 8: Using Clocks, Timers, and Signals in Linux 11. Chapter 9: Understanding the C++ Memory Model 12. Chapter 10: Using Coroutines in C++ for System Programming 13. Index 14. Other Books You May Enjoy

Handling Errors with C++

This chapter will focus on error handling in C++. As a programmer, you will inevitably encounter situations where you need to determine the best approach to propagate program errors. Whether you use error codes or exceptions, we will delve into them to gain a better understanding of how to use them effectively.

In this chapter, we will examine how to handle errors reported by POSIX APIs using C++. We will begin by covering the errno thread-local variable and the strerror function. After that, we will introduce std::error_code and std::error_condition and demonstrate how they help to wrap POSIX errors that come from POSIX APIs. We will also investigate custom error categories, which allow us to compare errors produced by various sources and develop platform-independent error-handling code.

As we progress, we will learn about exceptions in C++ and how to convert std::error_code into a std::system_error exception. We will also explore some best practices...

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