Book Image

Expert C++

By : Vardan Grigoryan, Shunguang Wu
5 (1)
Book Image

Expert C++

5 (1)
By: Vardan Grigoryan, Shunguang Wu

Overview of this book

C++ has evolved over the years and the latest release – C++20 – is now available. Since C++11, C++ has been constantly enhancing the language feature set. With the new version, you’ll explore an array of features such as concepts, modules, ranges, and coroutines. This book will be your guide to learning the intricacies of the language, techniques, C++ tools, and the new features introduced in C++20, while also helping you apply these when building modern and resilient software. You’ll start by exploring the latest features of C++, and then move on to advanced techniques such as multithreading, concurrency, debugging, monitoring, and high-performance programming. The book will delve into object-oriented programming principles and the C++ Standard Template Library, and even show you how to create custom templates. After this, you’ll learn about different approaches such as test-driven development (TDD), behavior-driven development (BDD), and domain-driven design (DDD), before taking a look at the coding best practices and design patterns essential for building professional-grade applications. Toward the end of the book, you will gain useful insights into the recent C++ advancements in AI and machine learning. By the end of this C++ programming book, you’ll have gained expertise in real-world application development, including the process of designing complex software.
Table of Contents (22 chapters)
1
Section 1: Under the Hood of C++ Programming
7
Section 2: Designing Robust and Efficient Applications
17
Section 3: C++ in the AI World

Introducing coroutines

We discussed an example of asynchronous code execution when speaking about GUI applications. GUI components react to user actions by firing corresponding events, which are pushed in the event queue. This queue are then processed one by one by invoking attached handler functions. The described process happens in a loop; that's why we usually refer to the concept as the event loop.

Asynchronous systems are really useful in I/O operations because any input or output operation blocks the execution at the point of I/O call. For example, the following pseudo-code reads a file from a directory and then prints a welcome message to the screen:

auto f = read_file("filename");
cout << "Welcome to the app!";
process_file_contents(f);

Attached to the synchronous execution pattern, we know that the message Welcome to the app! will be printed...