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Hands-On Functional Programming with C++

Hands-On Functional Programming with C++

By : Alexandru Bolboacă
4 (2)
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Hands-On Functional Programming with C++

Hands-On Functional Programming with C++

4 (2)
By: Alexandru Bolboacă

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)
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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++

Functional programming constructs are everywhere

Around 10 years after I finished the university functional programming course, I had a casual chat with my friend, Felix. As any two geeks, we would rarely see each other, but we had, for years, an ongoing conversation on instant messaging discussing all kinds of nerdy topics and, of course, programming.

Somehow, the topic of functional programming came up. Felix pointed out that one of my favorite and most enjoyable programming languages, LOGO, was, in fact, a functional programming language.

LOGO is an educational programming language whose main characteristic is utilization of so-called turtle graphics.

It was obvious in retrospect; here is how to write a function that draws a square in the KTurtle version of LOGO:

learn square {
repeat 4 {forward 50 turnright 90}
}

The result is shown in the following screenshot:

Can you...

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