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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Working with calendars

The chrono library, available in C++11, offered support for clocks, time points, and durations but did not make it easy for expressing times and dates, especially with respect to calendars and time zones. The new C++20 standard corrects this by extending the existing chrono library with:

  • More clocks, such as a UTC clock, an International Atomic Time clock, a GPS clock, a file time clock, and a pseudo-clock representing local time.
  • Time of day, representing the time elapsed since midnight split into hours, minutes, and seconds.
  • Calendars, which enable us to express dates with year, month, and day parts.
  • Time zones, which enable us to express time points with respect to a time zone and make it possible to convert times between different time zones.
  • I/O support for parsing chrono objects from a stream.

In this recipe, we will learn about working with calendar objects.

Getting ready

All the new chrono functionalities...