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Key benefits

Modularize your applications and make them highly reusable and testable

Get familiar with complex concepts such as metaprogramming, concurrency, and immutability

A highly practical guide to building functional code in C++ filled with lots of examples and real-world use cases

Description

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.

What you will learn

• Get to know the difference between imperative and functional approaches

• See the use of first-class functions and pure functions in a functional style

• Discover various techniques to apply immutable state to avoid side effects

• Design a recursive algorithm effectively

• Create faster programs using lazy evaluation

• Structure code using design patterns to make the design process easier

• Use concurrency techniques to develop responsive software

• Learn how to use the C++ Standard Template Library and metaprogramming in a functional way to improve code optimization

What do you get with a Packt Subscription?

Free for first 7 days. ₹800 p/m after that. Cancel any time!

Unlimited ad-free access to the largest independent learning library in tech. Access this title and thousands more!

50+ new titles added per month, including many first-to-market concepts and exclusive early access to books as they are being written.

Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.

Thousands of reference materials covering every tech concept you need to stay up to date.

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View plans & pricing

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Mike Jan 05, 2018

The grammar issue is bad but the author still manages to make himself understood. The content is decent but not worth the price.

Amazon Verified review

John Carter Sep 21, 2018

Very difficult to get to get to grips with initially but gets easier as you go.

Hangzhou Tang May 31, 2018

It's not as perfect as I assume before. I found an error even in the beginning of the book. For example in page 11, the book shows "auto main ->int" which should be "auto main() -> int".

Jonathan Apr 22, 2018

Grammar is terrible. Code snippets are duplicated over and over again - concepts that can be shown in one or two lines are surrounded by 20 lines of boilerplate.Coming from functional programming languages, I was excited for what might be possible in c++ but was disappointed by the lack of depth in the book. I don't know enough about c++ to say that's the author's fault or the language's.

Mr. Moo May 09, 2018

I have quite a few Packt Publishing titles in my library and normally they are well written, concise and informative, but this is certainly not the case for this book, and to be honest the quality and content is shocking. As has been said in other reviews the grammar is terrible and the repetition of the example code a complete waste of space. But the book's does not live up to it's hype!From the back of the book “This book will help you discover all the C++17 features that can be applied to build software in a functional way.”, I read this and based my purchase decision on it, all very well you might think. But inside the book on page 40 there is the following paragraph:“The C++17 language plans to introduce two new features for the Lambda expression—they are capturing *this, which allows the expression to capture the enclosing object by copy, and the constexpr Lambda expressions, which allows us to use the result of the Lambda expressions and generate constexpr objects at compile time. However, since C++17 has not been released yet, we cannot try it for now.”Considering the quote above the book’s obviously been rushed to print and written prior to the availability of a C++ 17 compiler, so why Packt used the blurb they did I do not understand when they and the author clearly couldn’t produce what the back cover was offering.If I were you I’d keep your money and buy something else and if you want to know more about Functional programming with C++ there are plenty of articles available for free on the internet.

Learning C++ Functional Programming: Explore functional C++ with concepts like currying, metaprogramming and more

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