Book Image

Template Metaprogramming with C++

By : Marius Bancila
Book Image

Template Metaprogramming with C++

By: Marius Bancila

Overview of this book

Learn how the metaprogramming technique enables you to create data structures and functions that allow computation to happen at compile time. With this book, you'll realize how templates help you avoid writing duplicate code and are key to creating generic libraries, such as the standard library or Boost, that can be used in a multitude of programs. The introductory chapters of this book will give you insights into the fundamentals of templates and metaprogramming. You'll then move on to practice writing complex templates and exploring advanced concepts such as template recursion, template argument deduction, forwarding references, type traits, and conditional compilation. Along the way, you'll learn how to write variadic templates and how to provide requirements to the template arguments with C++20 constraints and concepts. Finally, you'll apply your knowledge of C++ metaprogramming templates to implement various metaprogramming patterns and techniques. By the end of this book, you'll have learned how to write effective templates and implement metaprogramming in your everyday programming journey.
Table of Contents (16 chapters)
Part 1: Core Template Concepts
Part 2: Advanced Template Features
Part 3: Applied Templates
Appendix: Closing Notes

Chapter 8: Ranges and Algorithms

By reaching this point of the book, you have learned everything about the syntax and the mechanism of templates in C++, up to the latest version of the standard, C++20. This has equipped you with the necessary knowledge to write templates from simple forms to complex ones. Templates are the key to writing generic libraries. Even though you might not write such a library yourself, you’d still be using one or more. In fact, the everyday code that you’re writing in C++ uses templates. And the main reason for that is that as a modern C++ developer, you’re using the standard library, which is a library based on templates.

However, the standard library is a collection of many libraries, such as the containers library, iterators library, algorithms library, numeric library, input/output library, filesystem library, regular expressions library, thread support library, utility libraries, and others. Overall, it’s a large library...