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By Giovanni Dicanio | Apr 10, 2021 12:04 PM | Tags: None
Are you ready to modernize your C++ code using std::string_view?
Well, there might be some subtle bug hiding!
The Case of string_view and the Magic String
by Giovanni Dicanio
From the article:
Is there some magic string hidden inside string_view? Let's figure this bug out!
By bfilipek | Apr 10, 2021 11:59 AM | Tags: None
<img alt="" data-cke-saved-src="https://www.cppstories.com/2021/images/lambda_print.png" src="https://www.cppstories.com/2021/images/lambda_print.png" 138px;="" height:="" 160px;="" float:="" right;"="" style="float: right; height: 267px; width: 230px;">I'm happy to announce that my book on Lambdas is complete and available in paperback/print version!
C++ Lambda Story in Print
by Bartlomiej Filipek
About the book
I packed my knowledge about lambdas into a beautiful ebook, with lots of examples and additional descriptions. And just as with my book about C++17, I made it available at Leanpub. The platform makes it easy for me to publish new updates, and everyone who has the book can immediately access the latest changes (at no charge). Also, the platform allows you to read it as PDF and Epub, Mobi or Online.
By Meeting C++ | Apr 10, 2021 02:56 AM | Tags: meetingcpp c++20 basics
Hightlighting a less known C++20 feature:
Mathematical constants in C++20
by Jens Weller
From the article:
When I researched the library and language features of C++20 for the Meeting C++ Community survey, this feature catched my eye.
And I thought its such a nice small feature, I should mention it on the blog. As all other C++20 blog posts right now seem to be about coroutines. It also is a nice follow up on an old blog of mine: C++ & π, where I showed the various ways of obtaining pi for C++ in 2013...
By Adrien Hamelin | Apr 8, 2021 12:55 PM | Tags: c++20
The series continue.
C++ coroutines: Building a result holder for movable types
by Raymond Chen
From the article:
One of the pieces we need for the simple_promise we use to construct a coroutine is what we have been calling the “result holder”. This is basically a variant that starts out empty, and can atomically transition to holding either the result of a successful coroutine, an exception pointer for a failed coroutine...
By Adrien Hamelin | Apr 8, 2021 12:55 PM | Tags: c++20
More coroutines.
Starting Jobs with Coroutines
by Rainer Grimm
From the article:
C++20 has three new keywords to make a coroutine out of a function: co_return, co_yield, and co_await. co_await requires an Awaitable as arguments and starts the Awaiter workflow. Let me show in this post, what that means...
By Adrien Hamelin | Apr 7, 2021 01:13 PM | Tags: c++20
The series continue.
C++ coroutines: Making the promise itself be the shared state, the outline
by Raymond Chen
From the article:
Last time, we got the idea of putting the result holder state directly inside the coroutine state. This time, we’ll set to work on the implementation...
By Adrien Hamelin | Apr 7, 2021 01:11 PM | Tags: c++20
All you want to know about c++20!
All C++20 core language features with examples
by Oleksandr Koval
From the article:
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!
By Adrien Hamelin | Apr 7, 2021 01:10 PM | Tags: c++20
The series continue.
C++ coroutines: Making the promise itself be the shared state, the inspiration
by Raymond Chen
From the article:
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...
By Meeting C++ | Apr 7, 2021 06:24 AM | Tags: usergroup meetingcpp community
A new kind of online event: a tool fair to watch tool demos, meet with vendors and learn about C++ tooling.
Organizing the first Meeting C++ online tool fair on April 20th!
by Jens Weller
From the article:
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!
By Adrien Hamelin | Apr 6, 2021 12:06 PM | Tags: c++11
A refresher.
What auto&& means
by Jonathan Boccara
From the article:
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...