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Template Metaprogramming with C++

You're reading from   Template Metaprogramming with C++ Learn everything about C++ templates and unlock the power of template metaprogramming

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Product type Paperback
Published in Aug 2022
Publisher Packt
ISBN-13 9781803243450
Length 480 pages
Edition 1st Edition
Languages
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Author (1):
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Marius Bancila Marius Bancila
Author Profile Icon Marius Bancila
Marius Bancila
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Table of Contents (16) Chapters Close

Preface 1. Part 1: Core Template Concepts
2. Chapter 1: An Introduction to Templates FREE CHAPTER 3. Chapter 2: Template Fundamentals 4. Chapter 3: Variadic Templates 5. Part 2: Advanced Template Features
6. Chapter 4: Advanced Template Concepts 7. Chapter 5: Type Traits and Conditional Compilation 8. Chapter 6: Concepts and Constraints 9. Part 3: Applied Templates
10. Chapter 7: Patterns and Idioms 11. Chapter 8: Ranges and Algorithms 12. Chapter 9: The Ranges Library 13. Assignment Answers 14. Other Books You May Enjoy Appendix: Closing Notes

Summary

In this chapter, we have explored an important category of templates, variadic templates, which are templates with a variable number of template arguments. We can create variadic function templates, class templates, variable templates, and alias templates. The techniques to create variadic function templates and variadic class templates are different but incur a form of compile-time recursion. For the latter, this is done with template specialization, while for the former with function overloads. Fold expressions help to expand a variable number of arguments into a single expression, avoiding the need of using function overloads and enabling the creation of some categories of variadic variable templates such as the ones we have previously seen.

In the next chapter, we will look into a series of more advanced features that will help you consolidate your knowledge of templates.

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