All C++20 core language features with examples

by Oleksandr Koval

The story behind this article is very simple, I wanted to learn about new C++20 language features and to have a brief summary for all of them on a single page. So, I decided to read all proposals and create this “cheat sheet” that explains and demonstrates each feature. This is not a “best practices” kind of article, it serves only demonstrational purpose. Most examples were inspired or directly taken from corresponding proposals, all credit goes to their authors and to members of ISO C++ committee for their work. Enjoy!

C++ coroutines: Making the promise itself be the shared state, the inspiration

by Raymond Chen

Earlier, we improved our simple coroutine promise by delaying the resumption of awaiting coroutines until local variables have destructed. This time, we’ll look at another improvement...

Organizing the first Meeting C++ online tool fair on April 20th!

by Jens Weller

On the evening of April 20th you'll be able to see demos, meet and chat with different C++ tool vendors at the online C++ tool fair!

Join the event on Meetup.

What auto&& means

by Jonathan Boccara

Since C++11, we have a && in the language, and it can take some time to understand its meaning and all the consequences this can have on your code.

We’ve been through a detailed explanation of lvalues, rvalues and their references, which covers a lot of ground on this topic.

But there is one aspect that we have to talk about: what does auto&&, X&&, or even int&& means in code...

C++ coroutines: What happens if an exception occurs in my return_value?

by Raymond Chen

When I introduced a basic implementation of a promise type, I noted that the return_value method or return_void method is called when the coroutine performs a co_return. But what happens if the return_value or return_void method raises an exception?

C++ coroutines: The initial and final suspend, and improving our return_value method

by Raymond Chen

Last time, we had a basic implementation of a promise type but left with the question of what the initial_suspend and final_suspend are for...

C++ coroutines: Basic implementation of a promise type

by Raymond Chen

Last time, we diagrammed out how the pieces of a coroutine fit together. Today we’ll fill in the diagram with code.

Fortunately, most of the hard work has already been done for us by the result_holder class we already wrote. We just need to adapt it to the format required by the coroutine specification...

A Generic Data Stream with Coroutines in C++20

by Rainer Grimm

In my last post in this mini-series to coroutines from the practical perspective, I presented the workflow of "An Infinite Data Stream with Coroutines in C++20". In this post, I use the generic potential of the data stream...

C++ User Group Meetings in April 2021

by Jens Weller

The monthly list of upcoming C++ User Group meetings, still online due to the pandemic!

In April Meeting C++ online hosts two different events: on April 8th Andreas Fertig will speak about C++ insights and on April 20th Meeting C++ hosts an online C++ Tool fair.

Taming the power of C++ with AI

by Jens Weller

In January Bryce Adelstein Lelbach gave a talk about NDVIDIAS CUDASTL fork at my online C++ User Group. Shortly after this talk was published on YouTube I got contacted by a start up, seeking feedback on their ideas of accelerating C++ with help of GPUs and AI...