Book Image

Modern C++ Programming Cookbook - Second Edition

By : Marius Bancila
Book Image

Modern C++ Programming Cookbook - Second Edition

By: Marius Bancila

Overview of this book

C++ has come a long way to be one of the most widely used general-purpose languages that is fast, efficient, and high-performance at its core. The updated second edition of Modern C++ Programming Cookbook addresses the latest features of C++20, such as modules, concepts, coroutines, and the many additions to the standard library, including ranges and text formatting. The book is organized in the form of practical recipes covering a wide range of problems faced by modern developers. The book also delves into the details of all the core concepts in modern C++ programming, such as functions and classes, iterators and algorithms, streams and the file system, threading and concurrency, smart pointers and move semantics, and many others. It goes into the performance aspects of programming in depth, teaching developers how to write fast and lean code with the help of best practices. Furthermore, the book explores useful patterns and delves into the implementation of many idioms, including pimpl, named parameter, and attorney-client, teaching techniques such as avoiding repetition with the factory pattern. There is also a chapter dedicated to unit testing, where you are introduced to three of the most widely used libraries for C++: Boost.Test, Google Test, and Catch2. By the end of the book, you will be able to effectively leverage the features and techniques of C++11/14/17/20 programming to enhance the performance, scalability, and efficiency of your applications.
Table of Contents (16 chapters)
13
Bibliography
14
Other Books You May Enjoy
15
Index

Using vector as a default container

The standard library provides various types of containers that store collections of objects; the library includes sequence containers (such as vector, array, and list), ordered and unordered associative containers (such as set and map), and container adapters that do not store data but provide an adapted interface toward a sequence container (such as stack and queue). All of them are implemented as class templates, which means they can be used with any type (providing it meets the container requirements). In general, you should always use the container that is the most appropriate for a particular problem, which not only provides good performance in terms of speed of inserts, deletes, access to elements, and memory usage but also makes the code easy to read and maintain. However, the default choice should be vector. In this recipe, we will see why vector should be the preferred choice for a container in many cases and what the most common...