Book Image

Learning C++ Functional Programming

By : Wisnu Anggoro
5 (1)
Book Image

Learning C++ Functional Programming

5 (1)
By: Wisnu Anggoro

Overview of this book

Functional programming allows developers to divide programs into smaller, reusable components that ease the creation, testing, and maintenance of software as a whole. Combined with the power of C++, you can develop robust and scalable applications that fulfill modern day software requirements. This book will help you discover all the C++ 17 features that can be applied to build software in a functional way. The book is divided into three modules—the first introduces the fundamentals of functional programming and how it is supported by modern C++. The second module explains how to efficiently implement C++ features such as pure functions and immutable states to build robust applications. The last module describes how to achieve concurrency and apply design patterns to enhance your application’s performance. Here, you will also learn to optimize code using metaprogramming in a functional way. By the end of the book, you will be familiar with the functional approach of programming and will be able to use these techniques on a daily basis.
Table of Contents (15 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Enumerating the benefits of being immutable


After our discussion, we now know that an immutable object is an essential part of the functional programming. The following are the benefits we can get from the immutable object:

  • We won't deal with the side effect. It's because we have ensured that no outside state is modified. We also create a new object every time we intend to change the value inside the object.
  • There is no invalid object's state. It's because we will always be in an inconsistent state. If we forget to invoke a particular method, we will definitely get the correct state since there is no connection between methods.
  • It will be thread-safe since we can run many methods together with no need to lock the first method that is run in the pool. In other words, we will never face any synchronization issues.