Book Image

Modern C++ Programming Cookbook - Second Edition

By : Marius Bancila
5 (1)
Book Image

Modern C++ Programming Cookbook - Second Edition

5 (1)
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

Exploring Functions

Functions are a fundamental concept in programming; regardless of the topic we discuss, we end up writing functions. Trying to cover functions in a single chapter is not only hard but also not very rational. Being a fundamental element of the language, functions are encountered in every recipe of this book. This chapter, however, covers modern language features related to functions and callable objects, with a focus on lambda expressions, concepts from functional languages such as higher-order functions, and type-safe functions with a variable number of arguments.

The recipes included in this chapter are as follows:

  • Defaulted and deleted functions
  • Using lambdas with standard algorithms
  • Using generic and template lambdas
  • Writing a recursive lambda
  • Writing a function template with a variable number of arguments
  • Using fold expressions to simplify variadic function templates
  • Implementing the higher-order functions...