Book Image

Modern C++ Programming Cookbook - Second Edition

By : Marius Bancila
Book Image

Modern C++ Programming Cookbook - Second Edition

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)
Other Books You May Enjoy

Avoiding using recursive mutexes

The standard library provides several mutex types for protecting access to shared resources. std::recursive_mutex and std::recursive_timed_mutex are two implementations that allow you to use multiple locking in the same thread. A typical use for a recursive mutex is to protect access to a shared resource from a recursive function. An std::recursive_mutex class may be locked multiple times from a thread, either with a call to lock() or try_lock(). When a thread locks an available recursive mutex, it acquires its ownership; as a result of this, consecutive attempts to lock the mutex from the same thread do not block the execution of the thread, creating a deadlock. The recursive mutex is, however, released only when an equal number of calls to unlock() are made. Recursive mutexes may also have a greater overhead than non-recursive mutexes. For these reasons, when possible, they should be avoided. This recipe presents a use case for transforming a thread...