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Modern C++ Programming Cookbook

You're reading from   Modern C++ Programming Cookbook Master C++ core language and standard library features, with over 100 recipes, updated to C++20

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Product type Paperback
Published in Sep 2020
Publisher Packt
ISBN-13 9781800208988
Length 750 pages
Edition 2nd 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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Toc

Table of Contents (16) Chapters Close

Preface Learning Modern Core Language Features Working with Numbers and Strings FREE CHAPTER Exploring Functions Preprocessing and Compilation Standard Library Containers, Algorithms, and Iterators General-Purpose Utilities Working with Files and Streams Leveraging Threading and Concurrency Robustness and Performance Implementing Patterns and Idioms Exploring Testing Frameworks C Plus Plus 20 Core Features Bibliography Other Books You May Enjoy
Index

Defaulted and deleted functions

In C++, classes have special members (constructors, destructors, and assignment operators) that may be either implemented by default by the compiler or supplied by the developer. However, the rules for what can be default implemented are a bit complicated and can lead to problems. On the other hand, developers sometimes want to prevent objects from being copied, moved, or constructed in a particular way. This is possible by implementing different tricks using these special members. The C++11 standard has simplified many of these by allowing functions to be deleted or defaulted in the manner we will see in the next section.

Getting started

For this recipe, you need to be familiar with the following concepts:

  • Special member functions (default constructor, destructor, copy constructor, move constructor, copy assignment operator, move assignment operator)
  • The copyable concept (a class features a copy constructor and copy assignment...
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