Book Image

Expert C++

By : Vardan Grigoryan, Shunguang Wu
Book Image

Expert C++

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

Diving deeper into recursion

We've already discussed the main features of a recursive function in Chapter 2, Low-level Programming with C++. Let's take a look at the following simple example of calculating the factorial of a number recursively:

int factorial(int n)
{
if (n <= 1) return 1;
return n * factorial(n - 1);
}

Recursive functions provide elegant solutions compared to their iterative counterparts. However, you should carefully approach the decision to use recursion. One of the most popular issues with recursive functions is stack overflows.

Head recursion

Head recursion is the regular recursion that we are already familiar with. In the preceding example, the factorial function behaves as a head recursive...