C++23 in Practice: An Introduction for Day-to-day Use

Nicolai M. Josuttis

⏱ 1-day-workshop
beginner
intermediate
advanced
10:00-18:00, Tuesday, 16th June 2026

C++23 is now fully available by major C++ compilers so that more and more projects and companies are using it. Therefore, it is time to look at the contents of C++23 (new features and significant extensions in both the language and the standard library).

This one-day workshop introduces and discusses the major language and library features of C++23. The goal is to understand their purpose and know the most important things to use them in practice.

Many features extend C++20 features and make them (more) usable in practice. For example, std::generator is the first interface class to deal easily with coroutines, so that C++23 introdcues a new paradigm to implement generators and state machines. For these topics, the basics of C++20 will be part of this training.

As usual for his trainings and books, Nicolai Josuttis will focus on both the design and the practical usability of the new features. Attendees will understand why we have them and how to use them right. As a long-term active member of the C++ Standard Commitee and well-known educator, the quality of this training will give you the best revenue for understanding, use, and avoiding the traps of C++23.

Outline

We will cover the following topics:

  • Formatted output extensions (std::println())
  • std::generator<> coroutine interface
  • std::expected<>
  • std::stacktrace
  • New standard views
  • Using views in practice (const, sorting, moving, traps)
  • std::mdspan
  • std::flat_set and std::flat_map
  • Small new language features


🏷 C++23
🏷 generator
🏷 views
🏷 ranges
🏷 println
🏷 formatting
🏷 stacktrace
🏷 expected
🏷 language
🏷 library

Nicolai M. Josuttis

Nicolai Josuttis (www.josuttis.com) is well-known in the community for his authoritative books and talks. For more than 25 years he has been a member of the C++ Standard Committee. He is the author of several worldwide best-sellers, including:

  • C++23: The Complete Guide
  • C++20: The Complete Guide
  • C++17: The Complete Guide
  • C++ Move Semantics: The Complete Guide
  • The C++ Standard Library: A tutorial and Reference
  • C++ Templates: The Complete Guide (w/ David Vandevoorde & Doug Gregor)