Book Image

Hands-On Functional Programming with C++

By : Alexandru Bolboaca
Book Image

Hands-On Functional Programming with C++

By: Alexandru Bolboaca

Overview of this book

Functional programming enables you to divide your software into smaller, reusable components that are easy to write, debug, and maintain. Combined with the power of C++, you can develop scalable and functional applications for modern software requirements. This book will help you discover the functional features in C++ 17 and C++ 20 to build enterprise-level applications. Starting with the fundamental building blocks of functional programming and how to use them in C++, you’ll explore functions, currying, and lambdas. As you advance, you’ll learn how to improve cohesion and delve into test-driven development, which will enable you in designing better software. In addition to this, the book covers architectural patterns such as event sourcing to help you get to grips with the importance of immutability for data storage. You’ll even understand how to “think in functions” and implement design patterns in a functional way. By the end of this book, you’ll be able to write faster and cleaner production code in C++ with the help of functional programming.
Table of Contents (23 chapters)
Free Chapter
1
Section 1: Functional Building Blocks in C++
7
Section 2: Design with Functions
12
Section 3: Reaping the Benefits of Functional Programming
17
Section 4: The Present and Future of Functional Programming in C++

Thinking in Functions - from Data in to Data out

In my journey toward understanding functional programming, I hit a difficult hurdle—my mind was trained in a completely different style of programming. Let's call it imperative object-oriented programming. So, how could I shift my thought patterns from thinking in objects to thinking in functions? And how could I mix these two in a good way?

I first looked into functional programming resources. Unfortunately, most of them are focused on the mathematics and the inner beauty of the concepts—which is great for anyone who can already think in these terms. But what if you're just trying to learn them? Is going through mathematical theories the only way to learn? While I like math, I'm rusty at it, and I'd rather find more practical ways.

I've then been exposed to various ways of writing code through...