Hands-On Functional Programming with C++: An effective guide to writing accelerated functional code using C++17 and C++20

Book Description
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.

What you will learn
Understand the fundamentals of functional programming
Structure your code by understanding the building blocks of functional programming
Compare design styles in functional programming and object-oriented programming (OOP)
Use the concept of currying to create new functions in C++
Become skilled at implementing design patterns in a functional way
Get to grips with multithreading by means of functional programming
Learn how to improve memory consumption when using functional constructs
Who this book is for
This book is for C++ developers who want to learn functional programming but have little to no knowledge of the paradigm. Although no prior knowledge of functional programming is necessary, basic C++ programming experience will help you understand key concepts covered in the book.

Table of Contents
An Introduction to Functional Programming
Understanding Pure Functions
Deep Dive into Lambdas
The Idea of Functional Composition
Partial Application and Currying
Thinking in Functions: From Data In to Data Out
Removing Duplication Using Currying and Functional Composition
Improving Cohesion Using Classes
Test Driven Development For Functional Programming
Performance optimization
Property-based testing
Refactoring to and through pure functions
Immutability and architecture: event sourcing
Lazy Evaluation Using Ranges Library
STL support and proposals
Standard language support and proposals