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++

Parallelism – taking advantage of immutability

Writing code that runs in parallel has been the source of much pain in software development. It seems like the problems arising from multithreaded, multi-process, or multi-server environments are fundamentally difficult to solve. Deadlocks, starvation, data races, locks, or debugging multi-threaded code are just a few terms that make those of us who've seen them afraid of ever meeting them again. However, we have to face parallel code because of multi-core CPUs, GPUs, and multiple servers. Can functional programming help with this?

Everyone agrees that this is one of the strong points of functional programming, specifically derived from immutability. If your data never changes, there are no locks and the synchronization is so simple that it can be generalized. If you just use pure functions and functional transformations...