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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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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++

An overview of the ranges library

The ranges library offers a variety of helpful new tools for the C++ programmer. All of them are useful, but many are particularly so for our functional programming needs.

But first, let's see how to set it up. To use the ranges library with C++ 17, you need to use the instructions from https://ericniebler.github.io/range-v3/. Then, you just need to include the all.hpp header file:

#include <range/v3/all.hpp>

As for C++ 20, you just need to include the <ranges> header since the library was included in the standard:

#include <ranges>

However, if you get a compilation error when trying out the previous line of code, don't be surprised. At the time of writing, the latest version of g++ is 9.1, but the ranges library hasn't yet been included in the standard. Due to its size, the implementations are expected to be quite...

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