March 18-23, Tokyo, Japan
April 17-20, Bristol, UK
April 24-26, Leganes, Spain
April 30, Online
May 7-12, Aspen, CO, USA
June 24-29, St. Louis, MO, USA
July 2-5, Folkestone, Kent, UK
By Adrien Hamelin | Oct 15, 2021 01:54 PM | Tags: intermediate
Simple and surprising.
A simple and clear example of undefined behavior
by Jens Weller
From the article:
If you work with C++ you'll sooner or later will have to deal with undefined behavior. I stumbled upon an easy example to help folks understand the scope of undefined behavoir...
By Adrien Hamelin | Oct 15, 2021 01:52 PM | Tags: community
Will you attend?
CppCon 2021 Keynote: Warning: std::find() is Broken! by Sean Parent Live, In Person
From the article:
We’ve previously announced keynotes by Bjarne Stroustrup, Herb Sutter, Lisa Lippincott and Michael Caisse. This is the fifth of our six conference keynotes to be announced...
By Blog Staff | Oct 15, 2021 10:07 AM | Tags: None
Thanks to the Chinese C++ experts who did this translation of Bjarne Stroustrup's latest History of Programming Languages paper! That's a massive job, and translations of technical papers are very rare in our field.
Bjarne Stroustrup: Thriving in a crowded and changing world: C++ 2006-2020
See also: Pre-recording and Q&A
ACM/SIGPLAN History of Programming Languages conference, HOPL-IV. London. June 2020.
All the HOPL-4 papers are posted as Proceedings of the ACM on Programming Languages Vol. 4.
By Felix Petriconi | Oct 15, 2021 06:15 AM | Tags: community
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 2022 conference will be from 2022-04-06 to 2022-04-09, with a pre-conference workshops on 2022-04-05.
The ACCU 2022 will be a hybrit event.
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 5th November 2021 at 23:59:59 GMT.
By Meeting C++ | Oct 15, 2021 06:05 AM | Tags: meetingcpp events community c++20
Next week Meeting C++ online hosts two events!
Highlighting two events next week
by Jens Weller
From the article
The two events will be on Wednesday and Thursday evening (CEST/Berlin):
- The Meeting C++ online book & tool fair
- The monthly meeting with Andreas Reischuck speaking about Using C++20 Coroutines for Asynchronous Parsers.
By Adrien Hamelin | Oct 12, 2021 12:10 PM | Tags: community
Registration is now open for CppCon 2021, which starts on October 24 and will be held both in person and online. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2021 to attend in person, online, or both!
C++20’s ＜chrono＞ Calendars and Time Zones in MSVC
Thursday, October 28 • 10:30am - 11:30am
by Miya Natsuhara
Summary of the talk:
The ＜chrono＞ header has existed since C++11, but C++20 dramatically increased its capabilities. MSVC has completed this C++20 feature and this session will focus on the development of our implementation and Windows-specific considerations that we encountered. For instance, how do we know if a given point in time is during a leap second insertion? Where do we get the data for time zones? If you are excited by these new chrono features and want to support a Windows platform, come and learn about its developments and caveats for a Windows implementation!
We will also touch on how STL maintainers and our valued external contributors developed the new features collaboratively. If you’re interested in participating in our open-source repo by reporting issues, contributing to discussions, or submitting pull requests, we hope that hearing about an example of collaboration will encourage you to visit our repo in the future.
By Adrien Hamelin | Oct 11, 2021 12:54 PM | Tags: community
Registration is now open for CppCon 2021, which starts on October 24 and will be held both in person and online. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2021 to attend in person, online, or both!
From Problem to Coroutine: Reducing I/O Latency
Wednesday, October 27 • 10:30am - 11:30am
by Cheinan Marks
Summary of the talk:
Coroutines are now officially part of the C++20 standard and one of their advertised uses is reducing I/O latency. Almost all of the literature on coroutines that I found illustrated either synchronous generators or described the nitty gritty details of coroutines using very simple usages. The best talk I found was Gor Nishanov's excellent talk from CppCon 2018, "Nanocoroutines to the Rescue!" (go watch it!) which solves a different problem than mine, but mostly illustrates the power of coroutines.
In this talk I want to approach coroutines from another direction. I will start with the problem, which almost all engineers face in some form, that of reducing I/O latency while searching and gathering data from a sequential file. Instead of going into the details of how the coroutines work, I will start with the naive synchronous solution and build up coroutines step by step to try and reduce latency, illustrating the pieces as they are added.
Finally I will compare this solution to an old-fashioned solution using threads and we'll see how the coroutines performance measures up and whether all the additional boilerplate needed is worth the additional trouble. I hope discussing the value of coroutines and future proposals for RAII and executors will spark a good discussion with the audience.
By Adrien Hamelin | Oct 11, 2021 12:50 PM | Tags: intermediate
The series continue.
Dependent Names
by Rainer Grimm
From the articles:
A dependent name is essentially a name that depends on a template parameter. A dependent name can be a type, a non-type, or a template parameter. To express that a dependent name stands for a type or a template, you have to use the keywords typename or template...
By Adrien Hamelin | Oct 11, 2021 12:47 PM | Tags: community
Give it a try!
Improved Null Pointer Dereference Detection in Visual Studio 2022 version 17.0 Preview 4
by Gabor Horvath
From the article:
The C++ static analysis team is committed to making your C++ coding experience as safe as possible. We are adding richer code safety checks and addressing high impact customer feedback bugs posted on the C++ Developer Community page. Thank you for engaging with us and giving us great feedback on the past releases and early previews leading to this point. Below is the detailed overview of a new experimental code analysis check that can detect null pointer dereference errors, along with a comparison to an existing check that has the same purpose...
By Andrey Karpov | Oct 11, 2021 01:08 AM | Tags: static code analysis static analysis tool misra compliance misra c misra cwe top 25 cwe
We are actively developing the PVS-Studio static analysis tool towards detecting Safety and Security-related errors. To be more precise, we've expanded the coverage of the MISRA C:2012 and OWASP ASVS standards. We have supported the MISRA Compliance 2020 standard. One of the more extraordinary innovations is the Best Warnings display mode.
PVS-Studio 7.15: MISRA, CWE, OWASP, Unreal Engine
by Andrey Karpov
From the article:
We have introduced a new feature for the PVS-Studio plugin for Visual Studio. Now you can display the Best Warnings the analyzer issued for a project. In other words, these are the analyzer's most valuable warnings. They demonstrate the analyzer's capabilities for someone, who is just starting out with the analyzer. We call this feature Analyzer Best Warnings. PVS-Studio has always been grouping analyzer warnings by 3 certainty levels. We've been traditionally using these levels to prioritize showing the analysis results — all best warnings should be first-level warnings. For the new version of our analyzer, we have developed a more accurate mechanism to evaluate warnings. Now the mechanism uses many extra criteria in addition to levels — both static (the average diagnostic "value") and dynamic. The dynamic criteria are based on warnings the analyzer issues for a specific code base (for example, detection frequency).
