I presented in my last post "Calendar and Time Zone in C++20: Calendar Dates" the new calendar-related data types. Today, I go one step further and interact with them.

A new type of the chrono extension in C++20 is a calendar date. C++20 offers various ways to create a calendar date and interact with them.

With C++20, the chrono library from C++11 receives important additions. The most prominent ones are a calendar and time-zones support. But this is by far not all. C++20 gets new clocks, powerful formatting functionality for time durations, and a time of day type.

Today, I present a few utilities for calculating the midpoint of two values, check if a std::string starts or ends with a substring, and create callables with std::bind_front. These little utilities may not seem so little when you need them.

Peter Gottschling presented in his last post "std::format in C++20" the basics of the new formatting library in C++20. In today's post, Peter writes about the formatting of user-defined types.

Today, I'm happy to present Peter Gottschling's guest post to the new formatting library in C++20: std::format.  Thanks to std::format, text formatting becomes in C++20 as easy as in Python.

Removing elements from a container or asking if an associative container has a specific key, is too complicated. I should say was because with C++20 the story changes.

Probably the most viral keyword in modern C++ is constexpr. With C++20, we have a constexpr std::vector and a constexpr std::string. Additionally, both containers can be manipulated with the constexpr algorithms of the Standard Template Library. 

In my seminar, I often hear the question: How can I safely pass a plain array to a function? With C++20, the answer is quite easy: Use a std::span.

Today, I complete my tour through the C++20 core language features with a few small improvements. One interesting of these minor improvements is that most of volatile has been deprecated.