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October 2020

A Tour of C++ Modules in Visual Studio--Will Buik

By Adrien Hamelin | Oct 30, 2020 01:04 PM | Tags: community

Reading to use them?

A Tour of C++ Modules in Visual Studio

by Will Buik

From the article:

C++ module support has arrived in Visual Studio! Grab the latest Visual Studio Preview if you want to try it out. C++ modules can help you compartmentalize your code, speed up build times, and they work seamlessly, side-by-side with your existing code.

This preview only supports C++ modules in the IDE for MSBuild projects. While the MSVC toolset is supported by any build system, Visual Studio’s IDE support for CMake doesn’t support C++ modules yet. We will let you know once it is! As always, please try it out and let us know if you have any feedback...

My CppCon 2020 trip report--Honey Sukesan

By Adrien Hamelin | Oct 30, 2020 01:03 PM | Tags: community

A new report.

My CppCon 2020 trip report

by Honey Sukesan

From the article:

Here is a brief (but lo..ng grin) report on my CppCon 2020 virtual trip experience. CppCon 2020 happened on September 2020 (September 13th - September 18th).

P.S:- Don't miss the references section of this write-up. I have curated all important reference links there.

Jonathan Boccaras Meeting C++ 2020 opening keynote: meta-polymorphism

By Meeting C++ | Oct 29, 2020 03:05 AM | Tags: performance meetingcpp efficiency conference community c++17 c++14 c++11 basics advanced

Some details for the opening keynote of Meeting C++ 2020 in two weeks!

Jonathan Boccaras Meeting C++ 2020 opening keynote: meta-polymorphism

by Jens Weller

From the article:

When you hear polymorphism you may think virtual functions, but this is just one speck of dust in the polymorphism universe.

Semantic requirements in concepts

By Adrien Hamelin | Oct 28, 2020 12:34 PM | Tags: c++20

More concepts.

Semantic requirements in concepts

by Andrzej Krzemieński

From the article:

The word ‘concept’ in the context of C++ generic programming has two meanings. The first is more abstract: it is the notion from the domain of Generic Programming (GP) in general. GP is not tied to any specific language: it is an approach to writing programs, and concepts are part of this approach. In this sense concepts have been with us since the inception of the STL. The second meaning is the keyword concept in C++20 with its associated semantics: its goal is to approximate the more abstract notion of a concept from GP, and this works only to some extent. One notable difference is that concepts in GP specify semantic requirements on types they constrain, and C++ concepts cannot express them directly.

In this post we will see how semantic requirements in concepts can break your program if you don’t pay attention to them, and what can be done in C++20 concepts to account for semantic requirements...

Tricks with Default Template Arguments--Jonathan Müller

By Adrien Hamelin | Oct 28, 2020 12:01 PM | Tags: intermediate

Did you know?

Tricks with Default Template Arguments

by Jonathan Müller

From the article:

Just like regular function parameters, template parameters can also have default parameters. For class templates, this behaves mostly just like default function arguments: if you pass fewer template arguments than required, default template arguments are used to fill the remaining places. However, for function templates, it gets more complicated as template parameters for functions can be deduced by the normal function arguments. This leads to some interesting side-effects. In particular, default arguments of template parameters don’t need to be put at the end!

Let’s take a look at a couple of things we can do with default template arguments...

Jason Turner and Rob Irving join Meeting C++ 2020 for an shared AMA

By Meeting C++ | Oct 27, 2020 09:46 AM | Tags: meetingcpp conference community

The 3rd and last AMA planned for Meeting C++ 2020 is with Jason Turner and Rob Irving!

Jason Turner and Rob Irving join Meeting C++ 2020 for an shared AMA

by Jens Weller

From the article:

Jason and Rob are well known for being the Hosts of CppCast, but also have a live beyond this in the tech world. Jason is well known for his C++ weekly and recently published a book about C++ best practices. While Rob is an experienced software developer and team lead with a strong focus on C++, but also knows C#, Objective C, Java and Ruby.

Checking Clang 11 with PVS-Studio

By Andrey Karpov | Oct 27, 2020 05:23 AM | Tags: static code analysis sast pvs-studio open source llvm clang 11 clang bugs

It's no secret that compilers employ their own built-in static code analyzers, and those are developing as well. That's why we write articles every now and then to show that our static analyzer, PVS-Studio, can find bugs even inside compilers and that we are worth our salt.

Checking Clang 11 with PVS-Studio

by Andrey Karpov

From the article:

The programmer is using a modulo operation to get a random value of either 0 or 1. But the value 1 seems to confuse developers and make them write the classic anti-pattern in which the modulo operation is performed on 1 instead of 2. The X % 1 operation is meaningless as it always evaluates to 0.

ACCU 2021 Call for Papers -- ACCU

By Felix Petriconi | Oct 26, 2020 11:20 AM | Tags: None

The ACCU is now putting together its program, and they want you to speak on C++. The ACCU conference has strong C++ tracks, though it is not a C++-only conference. If you have something to share, check out their

Call for Papers

by the ACCU

About the conference:

The ACCU 2021 will be from 2021-03-10 to 2021-03-13, with a pre-conference workshops on 2021-03-09.

The ACCU 2021 will be an online event because of the COVID-19 pandemic.

Historically, ACCU has a lot of C++ and C content, and is proud of that: ACCU is the foremost annual conference for people interested in C++ and C, at least in and around the UK. But it is not just a C++ and C conference, ACCU is about programming in whatever language people are using, with whatever tools and processes people are using: D, Chapel, Java, Kotlin, C#, F#, Groovy, Rust, Go, Python, Ruby, Lisp, to name just a few programming languages about which there have been sessions at ACCU conferences. Git, Mercurial, CMake, Meson, TDD, BDD, allthese tools and techniques have been the focus of sessions at ACCU. The ACCU Conference is looking for sessions that will be interesting to people who create software.
The ACCU Conference is put on by ACCU (https://accu.org), but is open to anyone who wishes to be there either as a presenter or an attender.

The Call for Papers lasts for about 3 weeks and will close on Friday 2020-11-13 23:59 GMT