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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No Diagnostic Required
Every month we bring you news from the world of C++, in the form of a podcast and a YouTube show. Our hosts are Anastasia Kazakova (PMM for CLion and ReSharper C++ at JetBrains) and Phil Nash (Developer Advocated for C++ at SonarSource)
Heterogeneous Computing and C++ Language Evolution
Erich Keane joins Timur and Phil. Erich chats about the recent WG21 meeting in Tokyo, his roles as chair and co-chair of the Language Evolution and Language Evolution Incubator working groups, respectively, as well as heterogeneous computing and his work at NVidia. News CppCon - Call for Speakers ACCU 2024 Online Bjarne Stroustrup responds to White House warning against C++ David Sankel's post on Boost split Links New C++ meetup in Vienna, Austria Tokyo ISO C++ Committee Trip Reports: In-depth status report Herb Sutter's report Think-Cell's trip report (Jonathan Müller) Papers discussed: P2900R6 - "Contracts for C++" P2996R2 - "Reflection for C++26" P2688R1 - "Pattern Matching: match Expression" P2830R1 - "Standardized Type Ordering"
Psychology and Starting Out as a Developer
Gail Ollis joins Phil and Matt Godbolt. Gail talks to us about why, after two decades of software development, she took a degree in psychology followed by a PhD that researched the psychology of software development - and how she now uses this to help others get started and, hopefully, avoid many of the human issues that can plague our software projects. News "Contracts MVP is Feature Complete" - Reddit "Contracts for C++" Timur's C++ London talk Gemini refuses to talk about C++ 20 Concepts to someone under the age of 18! Hacker News thread Twitch streamer's reaction (ThePrimeTime) “White House urges developers to dump C and C++” - InfoWorld Conferences: C++ on Sea Early Bird tickets and option, CfP closes soon (3rd-5th July) using std::cpp, Madrid (24th-26th April) C++ Now (29th April - 3rd May) ACCU full schedule and volunteers programme (17th-20th April) Links "Early Careers Day: A mini-conference for junior developers" - Gail's ACCU 2024 workshop "The kids are alright" - Gail's ACCU 2024 session showcasing her students Paper's Gail has co-authored on blending cyber security and software development: Putting the Sec in DevSecOps: Using Social Practice Theory to Improve Secure Software Development Dancing, not Wrestling: Moving from Compliance to Concordance for Secure Software Development "Helping developers to help each other: a technique to facilitate understanding among professional software developers" - Gail's PhD thesis
Compiler Explorer Revisited
Patrick Quist joins Phil and Timur. Patrick chats with us about their work on the Compiler Explorer team and how they got into it. We explore some useful features that may not be as widely known, and take a peek under the hood at how it all runs. News "C++ Package Managers: The Ultimate Roundup" - blog post by Christopher McArthur "Demystifying Lakos Rule via Visualization and How It Could Relate to Constexpr" blog post by Miro Palmu "A Year of C++ Improvements in Visual Studio, VS Code, and vcpkg" - blog post by Sy Brand NVidia interview question - Reddit thread Links History of Delphi Compiler Explorer Also Compiler Explorer Compiler Explorer Public Dashboard (live stats)
Teaching and Training Modern C++
Rainer Grimm joins Timur and Phil. Rainer talks to us about what he has learnt from many years of teaching C++ as a professional trainer, how training has become more accessible now more people are taking it online, and his thoughts on modern C++. News The C++ Iceberg "C++20 Concepts applied - Safe bitmasks using scoped enums" - blog post by Andreas Fertig ACCU conference: Early-bird tickets and workshops Links Reddit thread on Episode 375 with Daveed Vandervoorde Rainer's website and blog Rainer at Meeting C++ online, Feb 21st Rainer's "Concurreny in Modern C++" workshop at C++ Online, March 14th
Reflection for C++26
Daveed Vandevoorde joins Phil and Timur. Daveed talks a bit about his work at EDG, but mostly his efforts to get Reflection into C++26, along with his co-authors, and how that fits into the big picture. News Meeting C++ 2023 videos (including all keynotes) "A 2024 Discussion Whether To Convert The Linux Kernel From C To Modern C++" How do you correctly implement std::clamp? Blog post Reddit discussion C++ Online Workshops Links P2996R1 - "Reflection for C++26" P1240R2 - "Scalable Reflection in C++" "C++ Templates - The Complete Guide" - book (Vandevoorde, Josuttis)
Modern C++ with Qt
Ville Voutilainen joins Timur and guest co-host, Guy Davidson. Ville talks about his work at The Qt Company and on the C++ standard committee, and about how modern C++ features such as Modules and Sender/Receiver can integrate with the Qt framework. News Matt Godbolt on Computerphile PVS-Studio C++ quiz Boston C++ meetup C++ Now Links P2300R7 - std::execution (a.k.a. Sender/Receiver)
2023 Holiday Special
Phil and Timur are joined by ... Timur and Phil for a Holiday Special. We look back on the last year, discuss the news, and talk about what we're working on. News "The Case for Memory Safe Roadmaps" - CISA Experimental EDG Reflection Support Boost 1.84.0 released Cling 1.0 released "About time - how to unit test code that depends on time" - Björn Fahller CppNorth: Call for Speakers "Earlist Bird" tickets ACCU Early bird tickets C++ Online tickets Links Phil and Timur speaking at the December meetup in Munich "Digital Security by Design, CHERI and the Morello Board" - C++ London P2900R3 - "Contracts for C++"
SIMD
Matthias Kretz joins Phil and Timur. Matthias talks about SIMD, including what it is, how it works, and what its useful for. We also discuss his proposal to introduce SIMD vocabulary types and functionality into the C++ standard and how it relates to what was in the Parallelism TS. News MISRA C++ 2023 published Sonar webinar on MISRA C++ 2023 with Andreas Weis nlohmann/json 3.11.3 released reflect-cpp - Reflection library for C++20 Links P1928R7 - "std::simd — merge data-parallel types from the Parallelism TS 2" Matthias' CppCon 2023 talk on std::simd
Catch2 v3 and Random Numbers
Martin Hořeňovský joins Timur and Phil. Martin returns to talk about v3 of Catch2 and how it is different to v2. We also revisit the topic of random numbers and how Martin is still working on portable distributions and why that is important to testing and other domains. News P2662R3 - "Pack Indexing" P1673R13 - "A free function linear algebra interface based on the BLAS" P2546R5 - "Debugging Support" P2996R0 - "Reflection for C++26" "Why I think C++ is still a desirable coding platform compared to Rust" - Henrique Bucher CLion Nova Links Martin's NDC TechTown 2021 talk on Catch2 v3
Physical Units and a System of Quantities
Mateusz Pusz joins Phil and new guest co-host, Anastasia Kazakova. Mateusz talks to us about his physical units (and quantities) library, mp-units, why v2 is a complete redesign compared to the previous version, and how incorporating a system of quantities is so central to this new design. News clang 17 released Conference videos released in October AMA with Abbas Sabra (automatic/ static analysis) Is it too hard for junior developers to get on the C++ career ladder (Reddit) Links mp-units on GitHub mp-units - Documentation C++ on Sea 2023 video The Mars Climate Orbiter crash p1935 - "A C++ Approach to Physical Units" p2980 - "A motivation, scope, and plan for a physical quantities and units library" p2981 - "Improving our safety with a physical quantities and units library" p2982 - "std::quantity as a numeric type" p3003 - "The design of a library of number concepts"
AI and Random Numbers
Frances Buontempo joins Phil and returning guest co-host, Matt Godbolt. Frances talks to us about her new book on modern C++ as well as her the topic of her previous book on machine learning. We discuss the differences between LLM-based AI and more statistical approaches, as well as where random numbers fit into all this and the limitations of their current support in C++. News CppCon programme announced C++ on Sea videos "Inside STL" - The Old New Thing (August archive) Open source C++ projects that use modern C++ features (Reddit) Links "C++ Bookcamp" (title may change) - Frances' new book "Genetic Algorithms and Machine Learning for Programmers" - Frances' previous book Overload issues (submit articles on the main ACCU site) Frances' paper bag escapology certificate Shannon's mind reading paper ERNIE (Electronic Random Number Indicator Equipment) P2059R0 - "Make Pseudo-random Numbers Portable" (defunct) "Using, Generating and Testing with Pseudo-Random Numbers" - Frances' ACCU 2023 talk "Program your way out of a paper bag" series: "How to program your way out of a paper bag" (slides) "How to Evolve Your Way Out of a Paper Bag" (video) "Diffuse your way out of a paper bag" (video) "How to Evolve Your Way Out of a Paper Bag" (video) "Crowd Your Way Out of a Paper Bag" (video)
Automatic Static Analysis
Abbas Sabra joins Phil and Timur. Abbas talks to us about static analysis, the challenges - and benefits - of analysing C++ code, and a new feature from Sonar that can scan public repos with zero config. News Boost 1.83.0 released fmt 10.1 released The downsides of C++ Coroutines Links "All the defaults are backwards" - Phil's Lightning Talk "No, C++ static analysis does not have to be painful" - Sonar blog video showing Sonar's Automatic Analysis in action Sonar Community Discourse forums
Soagen
Mark Gillard joins Timur and guest co-host Jason Turner. Mark talks to us about reflection, SIMD, and his library soagen, a structure-of-arrays generator for C++. News What is Low Latency C++? C++Now 2023, part 1 What is Low Latency C++? C++Now 2023, part 2 Inside STL: The vector Inside STL: The string Experimenting with Modules in Flux pycmake cpptrace Links Soagen on GitHub Soagen documentation Mike Acton: Data-Oriented Design and C++ at CppCon 2014 Bryce Adelstein Lelbach on SoA and reflection at ACCU 2023 Data-Oriented Design and Modern C++ at CppNow 2023 Godbolt's law toml++ on GitHub PVS-Studio: 60 terrible tips for a C++ developer
How CLion works under the hood
Dmitry Kozhevnikov joins Timur and guest co-host Matt Godbolt. Dmitry talks to us about how the CLion IDE works under the hood. News mold 2.0.0 released CLion 2023.2 released Should we stop writing functions? Links C++ Lambda Idioms: technique to separate user-specified and deduced template parameters The Kotlin Foundation JetBrains Runtime CLion data flow analysis engine PVS-Studio: 60 terrible tips for a C++ developer
Safety, Security and Modern C++, with Bjarne Stroustrup
Bjarne Stroustrup joins Phil and Timur. Bjarne talks to us about safety in C++ through profiles, as well as modules and concepts - and looks ahead to what else is coming next. News C++ Now 2023 videos ACCU 2023 videos JetBrains Developer Ecosystem Survey 2023 Upcoming Boost 1.83 release Links P2739R0 - 'A call to action: Think seriously about “safety"; then do something sensible about it' P2687R0 - 'Design Alternatives for Type-and-Resource Safe C++' 'Contemporary C++ in Action' (video) - Daniela Engert