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Modern C++ Programming Cookbook - Third Edition

You're reading from  Modern C++ Programming Cookbook - Third Edition

Product type Book
Published in Feb 2024
Publisher Packt
ISBN-13 9781835080542
Pages 816 pages
Edition 3rd Edition
Languages
Author (1):
Marius Bancila Marius Bancila
Profile icon Marius Bancila

Table of Contents (15) Chapters

Preface 1. Learning Modern Core Language Features 2. Working with Numbers and Strings 3. Exploring Functions 4. Preprocessing and Compilation 5. Standard Library Containers, Algorithms, and Iterators 6. General-Purpose Utilities 7. Working with Files and Streams 8. Leveraging Threading and Concurrency 9. Robustness and Performance 10. Implementing Patterns and Idioms 11. Exploring Testing Frameworks 12. C++ 20 Core Features 13. Other Books You May Enjoy
14. Index

Using exceptions for error handling

Exceptions are responses to exceptional circumstances that can appear when a program is running. They enable the transfer of the control flow to another part of the program. Exceptions are a mechanism for simpler and more robust error handling, as opposed to returning error codes, which could greatly complicate and clutter the code. In this recipe, we will look at some key aspects related to throwing and handling exceptions.

Getting ready

This recipe requires you to have basic knowledge of the mechanisms of throwing exceptions (using the throw statement) and catching exceptions (using try...catch blocks). This recipe is focused on good practices around exceptions and not on the details of the exception mechanism in the C++ language.

How to do it...

Use the following practices to deal with exceptions:

  • Throw exceptions by value:
    void throwing_func()
    {
      throw std::runtime_error("timed out");
    }
    void another_throwing_func...
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