Every two weeks, or so, we sit down with guests from the C++ community to discuss the latest news and what they have been up to. Find us at cppcast.com
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Virtual Teaching and Plenary
Rob and Jason are joined by Patrice Roy. They first talk discuss JeanHeyd Meneide's blog post regarding ABI breakage in C and C++. Then they talk to Patrice Roy about his experience teaching C++ during the COVID pandemic, the first ISO Virtual Plenary and more. Transcript CppCast 277: Virtual Teaching and Plenary from PVS Studio News A Special Kind of Hell - intmax_t in C and C++ Lexy Clion 2020.3 Released Links Some Things C++ Does Right - Patrice Roy - CppCon 2020 Sponsors PVS-Studio. Write #cppcast in the message field on the download page and get one month license PVS-Studio: analyzing pull requests in Azure DevOps using self-hosted agents Why it is important to apply static analysis for open libraries that you add to your project
Networking TS
Rob and Jason are joined by Robert Leahy. They first talk about an open source flappy bird clone and the C++ framework it was built with. Then they talk to Robert Leahy about the Networking TS that will hopefully be a major feature of C++23. Transcript CppCast 276: Networking TS Transcript from PVS Studio News A Small Open Source Game in C++ The C++20 initialization flowchart Error codes are far slower than exceptions Beman Dawes has passed away Links The Networking TS from Scratch: I/O Objects - Robert Leahy - CppCon 2020 N3747 - A Universal Model for Asynchronous Operations P2161 - Remove Default Candidate Executor Sponsors PVS-Studio. Write #cppcast in the message field on the download page and get one month license PVS-Studio: analyzing pull requests in Azure DevOps using self-hosted agents Why it is important to apply static analysis for open libraries that you add to your project Use code JetBrainsForCppCast during checkout at JetBrains.com for a 25% discount
Fuzz Testing on the GPU
Rob and Jason are joined by Artem Dinaburg and Ryan Eberhardt. They first talk about a new version of CMake that was just released, an interview with Bjarne Stroustrup and another month of new ISO papers. Then they talk to Artem and Ryan who talk about fuzz testing, including a new fuzz testing project being worked at Trail of Bits to enable fuzz testing on the GPU. News Cmake 3.19 available for download How C++ became the invisible foundation for everything, and what's next November Monthly Mailing Links Let's build a high-performance fuzzer with GPUs! The Relevance of Classic Fuzz Testing: Have We Solved This One? Vectorized Emulation: Hardware accelerated taint tracking at 2 trillion instructions per second DeepState - Parameterized Unit Testing Framework MCSema - Tool to translate binaries to LLVM bitcode Remill - Library of CPU instruction semantics Anvill - Tool to make translated bitcode look closer to what a compiler would emit Rellic - Translates LLVM bitcode to C using Clang's AST library Sponsors PVS-Studio. Write #cppcast in the message field on the download page and get one month license PVS-Studio: analyzing pull requests in Azure DevOps using self-hosted agents Why it is important to apply static analysis for open libraries that you add to your project Use code JetBrainsForCppCast during checkout at JetBrains.com for a 25% discount
Concepts and Algorithm Intuition
Rob and Jason are joined by Conor Hoekstra. They first talk about new and updated libraries in Boost and Herb Sutter's trip report covering news from the recent virtual ISO plenary meeting where the first new features were voted into C++23. Then they talk to Conor about some of his recent conference talks on Algorithm Intuition and Concepts vs typeclasses. News Butano: a modern C++ high level engine for the GBA New Boost libraries in v1.75 Trip report: Autumn ISO C++ standards meeting (virtual) Links Conor's Conference Talks ADSP: The Podcast Sponsors PVS-Studio. Write #cppcast in the message field on the download page and get one month license PVS-Studio: analyzing pull requests in Azure DevOps using self-hosted agents Why it is important to apply static analysis for open libraries that you add to your project Use code JetBrainsForCppCast during checkout at JetBrains.com for a 25% discount
Video Games, Robotics and Audio
Rob and Jason are joined by Joël Lamotte. They first talk about C++20 Modules support in GCC and MSVC and a micro benchmarking library. Then they talk to Joël about how he got involved in C++, and his experiences working on indie video games, robotics and his recent transition to the audio industry working on a web assembly powered website. News P0847R5 Deducing This C++20 Modules Compiler Code Under Review, Could still land for GCC 11 Criterion micro-benchmarking library A Tour of C++ Modules in Visual Studio Links Best of Klaim's Music on Soundcloud Glacierbound OST on Soundcloud HomeTeam GameDev Jellynote Sponsors PVS-Studio. Write #cppcast in the message field on the download page and get one month license PVS-Studio: analyzing pull requests in Azure DevOps using self-hosted agents Why it is important to apply static analysis for open libraries that you add to your project Use code JetBrainsForCppCast during checkout at JetBrains.com for a 25% discount
Unicode Progress and C++/C Study Group
Rob and JeanHeyd are joined by Aaron Ballman and Peter Brett, both members of the ISO C++ committee. They first talk about an extension for Visual Studio and Visual Code for visualizing struct layout and a blog post proposing a safer boolean type. Then they talk about Aaron and Peter about progress being made at virtual ISO meetings and the upcoming virtual Plenary meeting. News StructLayout Visual C++ Extension Fun with Concepts: Do You Even Lift, Bool? Meeting C++: My thoughts on "The... Community?" Links ISO C++ October 2020 Mailing P1787: Declarations and where to find them WG21 SG16 Unicode study group Editing the C Standard Sponsors PVS-Studio. Write #cppcast in the message field on the download page and get one month license PVS-Studio: analyzing pull requests in Azure DevOps using self-hosted agents Why it is important to apply static analysis for open libraries that you add to your project Use code JetBrainsForCppCast during checkout at JetBrains.com for a 25% discount
ThinLTO
Rob and Jason are joined by Teresa Johnson from Google. They first discuss the Qt6 beta release and a blog post proposing range_ref, a lightweight view for ranges. Then they talk to Teresa about ThinLTO, the scalable and incremental Link Time Optimization built into LLVM. News Qt 6.0 Beta Released Range_ref Rob and Jason AMA Links ThinLTO CppCon 2017: Teresa Johnson "ThinLTO: Scalable and Incremental Link-Time Optimization" Meeting C++ 2020 - ThinLTO Whole Program Optimization: Past, Present and Future Sponsors PVS-Studio. Write #cppcast in the message field on the download page and get one month license PVS-Studio: analyzing pull requests in Azure DevOps using self-hosted agents Why it is important to apply static analysis for open libraries that you add to your project Use code JetBrainsForCppCast during checkout at JetBrains.com for a 25% discount
Programming History, JIT Compilations and Generic Algorithms
Rob and Jason are joined by Ben Deane from Quantlab. They first discuss the 11.0 update of Clang and an a blog post highlighting some of the smaller features that were added in C++17. They then talk to Ben about some of his recent CppCon talks including one on what we can learn from the history of programming languages and another on the ability to JIT C++ code. News Clang 11.0.0 is out 17 Smaller but Handy C++17 Features Links Careers at Quantlab Constructing Generic Algorithms: Principles and Practice - Ben Deane - CppCon 2020 Just-in-Time Compilation: The Next Big Thing? - Ben Deane & Kris Jusiak - CppCon 2020 How We Used To Be - Ben Deane - CppCon 2020 Sponsors PVS-Studio. Write #cppcast in the message field on the download page and get one month license PVS-Studio is now in Compiler Explorer! Free PVS-Studio for Students and Teachers Use code JetBrainsForCppCast during checkout at JetBrains.com for a 25% discount
Bazel
Rob and Jason are joined by Lukács Berki and Julio Merino from Google's Bazel team. They discuss CppCon trip reports, the cpp subreddit and a video on C++ 20 Concepts. Then Lukács and Julio talk all about the advantages of Bazel and some of the key features of Google's open source build tool. News My favorite way to TDD CppCon Trip Reports r/cpp status update Concepts in C++20 Links Bazel Bazel on GitHub The final boss: Bazel's own JNI code
Meeting C++ 2020
Rob and Jason are joined by Jens Weller from Meeting C++. They discuss a blog post on Immediately Invoked Function Expressions, a syntactic sugar library and JeanHeyd Meneid's blog and video about the C++ Community. Then they talk with Jens about the upcoming Meeting C++ conference, on line user groups and job fairs and more. News Coding Cards Technique: Immediately Invoked Function Expression for Metaprogramming SugarPP: syntactic 🍬 for programming in C++ The Community Links Meeting C++ Survey Meeting C++ 2020 Meeting C++ Online Burnout - Jens Weller - Meeting C++ 2019 secret lightning talks Sponsors PVS-Studio. Write #cppcast in the message field on the download page and get one month license PVS-Studio is now in Compiler Explorer! Free PVS-Studio for Students and Teachers
Performance Matters
Rob and Jason are joined by Emery Berger from the University of Massachusetts Amherst. They first discuss updates to GCC and the September ISO mailing. Then they talk to Emery Berger about Performance tooling and how improvements in Performance should be measured. News New C++ features in GCC 10 September C++ ISO Mailing std::exchange patterns: Fast, Safe, Expressive and Probably Underused include Meeting C++2020 scholarship Links Plenary: Performance Matters - Emery Berger - CppCon 2020 Quantifying the Performance of Garbage Collection vs. Explicit Memory Management Stabilizer Coz Sponsors PVS-Studio. Write #cppcast in the message field on the download page and get one month license PVS-Studio is now in Compiler Explorer! Free PVS-Studio for Students and Teachers
CppCon 2020 Wrapup
Rob and Jason are joined by Jon Kalb. They talk about the first on-line CppCon conference and plans for the future. Links CppCon CppCon 2020 YouTube Playlist C++Now Sponsors PVS-Studio. Write #cppcast in the message field on the download page and get one month license PVS-Studio is now in Compiler Explorer! Free PVS-Studio for Students and Teachers
Microsoft Announcements at CppCon 2020
Rob and Jason are joined by Julia Reid, Sy Brand and Augustin Popa from Microsoft. They talk about the virtual CppCon, favorite talks and the virtual conference experience. Then they talk about some of the announcements being made by the Microsoft Visual C++ team during the CppCon conference talks. Links Microsoft C++ Team at CppCon 2020 C++ in Visual Studio Code reaches version 1.0! vcpkg: Accelerate your team development environment with binary caching and manifests A Multitude of Updates in Visual Studio 2019 version 16.8 Preview 3 Standard C++20 Modules support with MSVC in Visual Studio 2019 version 16.8 C++ Coroutines in Visual Studio 2019 Version 16.8 Debug Linux core dumps in Visual Studio Project OneFuzz: new open source developer tool to find and fix bugs at scale Sponsors PVS-Studio. Write #cppcast in the message field on the download page and get one month license PVS-Studio is now in Compiler Explorer! Free PVS-Studio for Students and Teachers
stdpar
Rob and Jason are joined by David Olsen from NVIDIA. They first discuss the news from the ISO Committee that C++20 has been approved and work on C++23 will continue virtually. Then they talk with David about his work on NVIDIA's C++ compiler to run parallel algorithm code on the GPU and a proposal he's working on to introduce 16-bit floats to standard C++. News C++20 approved, C++23 meetings and schedule update If everyone hates it, why is OOP still so widely spread? New safety rules in C++ Core Check Links Accelerating Standard C++ with GPUs using stdpar P1467R4 Extended floating-point types and standard names Sponsors Clang Power Tools
Unit Testing
Rob and Jason are joined by Oleg Rabaev. They first discuss some papers from the latest ISO mailing and a new feature in Microsoft's vcperf tool. Then they talk to Oleg Rabaev about Unit Testing methodologies and why it's important to write testable code. News 2020-08 mailing Introducing vcperf /timetrace for C++ build time analysis Question regarding optional virtual destructor in C++20 Links Bloomberg Blog Sponsors Clang Power Tools