Search icon
Arrow left icon
All Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Newsletters
Free Learning
Arrow right icon
Modern C++ Programming Cookbook - Third Edition

You're reading from  Modern C++ Programming Cookbook - Third Edition

Product type Book
Published in Feb 2024
Publisher Packt
ISBN-13 9781835080542
Pages 816 pages
Edition 3rd Edition
Languages
Author (1):
Marius Bancila Marius Bancila
Profile icon Marius Bancila

Table of Contents (15) Chapters

Preface 1. Learning Modern Core Language Features 2. Working with Numbers and Strings 3. Exploring Functions 4. Preprocessing and Compilation 5. Standard Library Containers, Algorithms, and Iterators 6. General-Purpose Utilities 7. Working with Files and Streams 8. Leveraging Threading and Concurrency 9. Robustness and Performance 10. Implementing Patterns and Idioms 11. Exploring Testing Frameworks 12. C++ 20 Core Features 13. Other Books You May Enjoy
14. Index

Specifying requirements on template arguments with concepts

Template metaprogramming is an important part of the C++ language, empowering the development of general-purpose libraries, including the standard library. However, template metaprogramming is not trivial. On the contrary, complex tasks could be tedious and difficult to get right without a lot of experience. In fact, the C++ Core Guidelines, an initiative created by Bjarne Stroustrup and Herb Sutter, have a rule called Use template metaprogramming only when you really need to, which reasons that:

Template metaprogramming is hard to get right, slows down compilation, and is often very hard to maintain.

An important aspect concerning template metaprogramming has been the specification of constraints for type template parameters, in order to impose restrictions on the types that a template can be instantiated with. The C++20 concepts library is designed to solve this problem. A concept is a named set of constraints...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at €14.99/month. Cancel anytime}