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)
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Creating raw user-defined literals

In the previous recipe, we looked at the way C++11 allows library implementers and developers to create user-defined literals and the user-defined literals available in the C++14 standard. However, user-defined literals have two forms: a cooked form, where the literal value is processed by the compiler before being supplied to the literal operator, and a raw form, in which the literal is not processed by the compiler before being supplied to the literal operator. The latter is only available for integral and floating-point types. Raw literals are useful for altering the compiler's normal behavior. For instance, a sequence such as 3.1415926 is interpreted by the compiler as a floating-point value, but with the use of a raw user-defined literal, it could be interpreted as a user-defined decimal value. In this recipe, we will look at creating raw user-defined literals.

Getting ready

Before continuing with this recipe, it is strongly recommended...