Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Modern C++ Programming Cookbook

You're reading from   Modern C++ Programming Cookbook Recipes to explore data structure, multithreading, and networking in C++17

Arrow left icon
Product type Paperback
Published in May 2017
Publisher Packt
ISBN-13 9781786465184
Length 590 pages
Edition 1st Edition
Languages
Tools
Arrow right icon
Author (1):
Arrow left icon
Marius Bancila Marius Bancila
Author Profile Icon Marius Bancila
Marius Bancila
Arrow right icon
View More author details
Toc

Table of Contents (13) Chapters Close

Preface 1. Learning Modern Core Language Features FREE CHAPTER 2. Working with Numbers and Strings 3. Exploring Functions 4. Preprocessor 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. Bibliography

Using vector<bool> for variable-size sequences of bits


In the previous recipe, we looked at using std::bitset for fixed-size sequences of bits. Sometimes, however, an std::bitset is not a good choice because you do not know the number of bits at compile time, and just defining a set of a large enough number of bits is not a good idea because you can get into a situation when the number is not actually large enough. The standard alternative for this is to use the std::vector<bool> container that is a specialization of std::vector with space and speed optimizations, as implementations do not actually store Boolean values, but individual bits for each element.

Note

For this reason, however, std::vector<bool> does not meet the requirements of a standard container or sequential container, nor does std::vector<bool>::iterator meet the requirements of a forward iterator. As a result, this specialization cannot be used in generic code where a vector is expected. On the other...

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 $19.99/month. Cancel anytime