Introduction to C++20

Getting started

Before I dive into the details of C++20, I want to give a quick overview of the features in C++20. This overview should serve two purposes; to give a first impression and to provide links to the relevant sections you can use to dive directly into the details.

Note: Consequently, this chapter has only code snippets but no complete programs.

This course starts with a short historical detour into the previous C++ standards. This detour provides context when comparing C++20 to previous revisions and demonstrates the importance of C++20 by providing a historical context.

C++20 has four outstanding features: concepts, ranges, coroutines, and modules. Each deserves its own subsection. Let’s get started.

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