Book Image

C++20 STL Cookbook

By : Bill Weinman
Book Image

C++20 STL Cookbook

By: Bill Weinman

Overview of this book

Fast, efficient, and flexible, the C++ programming language has come a long way and is used in every area of the industry to solve many problems. The latest version C++20 will see programmers change the way they code as it brings a whole array of features enabling the quick deployment of applications. This book will get you up and running with using the STL in the best way possible. Beginning with new language features in C++20, this book will help you understand the language's mechanics and library features and offer insights into how they work. Unlike other books, the C++20 STL Cookbook takes an implementation-specific, problem-solution approach that will help you overcome hurdles quickly. You'll learn core STL concepts, such as containers, algorithms, utility classes, lambda expressions, iterators, and more, while working on real-world recipes. This book is a reference guide for using the C++ STL with its latest capabilities and exploring the cutting-edge features in functional programming and lambda expressions. By the end of the book C++20 book, you'll be able to leverage the latest C++ features and save time and effort while solving tasks elegantly using the STL.
Table of Contents (13 chapters)

Chapter 8: Utility Classes

The C++ Standard Library includes an assortment of utility classes designed for specific tasks. Some are common, and you've probably seen many of these classes in other recipes in this book.

This chapter covers a broad range of utilities, including time measurement, generic types, smart pointers, and more, in the following recipes:

  • Manage optional values with std::optional
  • Use std::any for type safety
  • Store different types with std::variant
  • Time events with std::chrono
  • Use fold expressions for variadic tuples
  • Manage allocated memory with std::unique_ptr
  • Share objects with std::shared_ptr
  • Use weak pointers with shared objects
  • Share members of a managed object
  • Compare random number engines
  • Compare random number distribution generators