GotW #97 Solution: Assertions -- Herb Sutter

By Blog Staff | Jan 11, 2021 12:53 PM | Tags: None

Solution just posted:

GotW #97 Solution: Assertions

by Herb Sutter

From the article:

Assertions have been a foundational tool for writing understandable computer code since we could write computer code... far older than C’s assert() macro, they go back to at least John von Neumann and Herman Goldstine (1947) and Alan Turing (1949). [1,2] How well do we understand them... exactly?

ACCU Overload 160 -- accu.org

By Felix Petriconi | Jan 11, 2021 12:38 PM | Tags: None

The latest magazine of ACCU is online available or as paper copy for members.

by accu.org

From the index

Debt – My First Thirty Years.
Reflecting on code often reveals gnarliness. Frances Buontempo reminds herself about all the tech debt she’s ever caused.

Questions on the Form of Software.
Writing software can be difficult. Lucian Teodorescu considers whether these difficulties are rooted in the essence of development.

Building g++ From the GCC Modules Branch.
Using the WSL to build the g++ modules branch. Roger Orr demonstrates how to get a compiler that supports modules up and running.

Consuming the uk-covid19 API.
Covid-19 data is available in many places. Donald Hernik demonstrates how to wrangle data out of the UK API.

What is the Strict Aliasing Rule and Why Do We Care?
Type Punning, Undefined Behavior and Alignment, Oh My! Strict aliasing is explained.

Afterwood.
Design Patterns emerged last century. Chris Oldwood explains why he thinks they are still relevant.

Include What You Use--Jonathan Boccara

By Adrien Hamelin | Jan 5, 2021 12:53 PM | Tags: community

Did you know that tool?

Include What You Use

by Jonathan Boccara

From the article:

I’ve used the clang based include-what-you-use tool on a fairly large chunk of code — a couple of hundreds of files, containing dozens of includes each.

That was an interesting experiment.

Here are my takeaways on this powerful tool, what it can bring to your code, and a few things I wish I had known when I started using it...

C++ at the end of 2020--Bartlomiej Filipek

By Adrien Hamelin | Jan 5, 2021 12:38 PM | Tags: community c++23 c++20

A summary of the year and the future.

C++ at the end of 2020

by Bartlomiej Filipek

From the article:

While 2020 was a crazy and hard year we were fortunate - C++20 was accepted and published, and the work on new features continues.

As usually every year, here’s my overview of the year: the standardization process, features, implementation, compilers, tools, books and more...

Firsts in 2020 (or, A little dose of good news)--Herb Sutter

By Adrien Hamelin | Jan 5, 2021 12:29 PM | Tags: community

A year full of accomplishments.

Firsts in 2020 (or, A little dose of good news)

by Herb Sutter

From the article:

2020 has been mostly terrible. That includes for the C++ committee and many of our communities, where just this month we lost Beman Dawes. Beman was one of the most important and influential C++ experts in the world, and made his many contributions mostly behind the scenes. I and everyone else who has ever benefited from any of the standardized STL, Boost, C++Now, std::filesystem, C++98/11/14/17, and more — so, really, most people who have ever used C++ — all owe Beman a debt of gratitude. We miss him greatly.

To end the year with a little dose of good news, I thought I’d mention a just few positive C++ accomplishments that did happen for 2020, and were happier “first-ever” achievements.

First, the big one…

One Trick with Private Names and Function Templates--Bartlomiej Filipek

By Adrien Hamelin | Jan 4, 2021 12:12 PM | Tags: advanced

Will you use it?

One Trick with Private Names and Function Templates

by Bartlomiej Filipek

From the article:

Last time in my blog post about How to Share Code with Const and Non-Const Functions in C++ I had a custom type declared and defined in one place (like in a header file). Recently, I tried to separate the declaration from implementation, and I got into a situation where one private function template was left.

In this article, I’d like to show you one trick that allowed me to convert this function template into a non-member function without giving up private details of the class...

Interactive C++ for Data Science--Vassil Vassilev, David Lange, Simeon Ehrig, Sylvain Corlay

By Adrien Hamelin | Jan 4, 2021 12:07 PM | Tags: community advanced

Helping research.

Interactive C++ for Data Science

by Vassil Vassilev, David Lange, Simeon Ehrig, Sylvain Corlay

From the article:

In our previous blog post “Interactive C++ with Cling” we mentioned that exploratory programming is an effective way to reduce the complexity of the problem. This post will discuss some applications of Cling developed to support data science researchers. In particular, interactively probing data and interfaces makes complex libraries and complex data more accessible users. We aim to demonstrate some of Cling’s features at scale; Cling’s eval-style programming support; projects related to Cling; and show interactive C++/CUDA...

Synchronization with Atomics in C++20--Rainer Grimm

By Adrien Hamelin | Jan 4, 2021 12:06 PM | Tags: c++20

Are you familiar with it?

Synchronization with Atomics in C++20

by Rainer Grimm

From the article:

Sender/receiver workflows are quite common for threads. In such a workflow, the receiver is waiting for the sender's notification before it continues to work. There are various ways to implement these workflows. With C++11, you can use condition variables or promise/future pairs; with C++20, you can use atomics...

C++ Day 2020--Marco Arena

By Marco Arena | Dec 28, 2020 08:00 AM | Tags: community

Event report with some details on the online organization:

C++ Day 2020

by Marco Arena

2020-12 mailing available

By Administrator | Dec 26, 2020 11:22 AM | Tags: None

The 2020-12 mailing of new standards papers is now available.