Book Image

Modern C++ Programming Cookbook - Second Edition

By : Marius Bancila
5 (1)
Book Image

Modern C++ Programming Cookbook - Second Edition

5 (1)
By: Marius Bancila

Overview of this book

C++ has come a long way to be one of the most widely used general-purpose languages that is fast, efficient, and high-performance at its core. The updated second edition of Modern C++ Programming Cookbook addresses the latest features of C++20, such as modules, concepts, coroutines, and the many additions to the standard library, including ranges and text formatting. The book is organized in the form of practical recipes covering a wide range of problems faced by modern developers. The book also delves into the details of all the core concepts in modern C++ programming, such as functions and classes, iterators and algorithms, streams and the file system, threading and concurrency, smart pointers and move semantics, and many others. It goes into the performance aspects of programming in depth, teaching developers how to write fast and lean code with the help of best practices. Furthermore, the book explores useful patterns and delves into the implementation of many idioms, including pimpl, named parameter, and attorney-client, teaching techniques such as avoiding repetition with the factory pattern. There is also a chapter dedicated to unit testing, where you are introduced to three of the most widely used libraries for C++: Boost.Test, Google Test, and Catch2. By the end of the book, you will be able to effectively leverage the features and techniques of C++11/14/17/20 programming to enhance the performance, scalability, and efficiency of your applications.
Table of Contents (16 chapters)
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Handling exceptions from thread functions

In the previous recipe, we introduced the thread support library and saw how to do some basic operations with threads. In that recipe, we briefly discussed exception handling in thread functions and mentioned that exceptions cannot leave the top-level thread function. This is because they cause the program to abnormally terminate with a call to std::terminate().

On the other hand, exceptions can be transported between threads within an std::exception_ptr wrapper. In this recipe, we will see how to handle exceptions from thread functions.

Getting ready

You are now familiar with the thread operations we discussed in the previous recipe, Working with threads. The exception_ptr class is available in the std namespace, which is in the <exception> header; mutex (which we discussed in more detail previously) is also available in the same namespace but in the <mutex> header.

How to do it...

To properly handle exceptions...