Episodit
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Christoper Apple joins Timur and Phil. Chris talks to us about his work on the new Realtime Sanitizer in the Clang20 release, as well as the associated Performance Constraints attributes, how they differ, and how they work together. NewsThe C++23 Standard has finally been released by ISO"Why Safety Profiles Failed" - draft of new paper from Sean Baxter"if constexpr requires requires { requires }" - Jonathan MüllerLinksRealtimeSanitizer docsPerformance Constraints docsRealtimeSanitizer helper repo (including how to run it "standalone" and find the team on discord)slides from Chris and David Trevelyan's CppCon 2024 talk
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Eduardo Madrid joins Phil and Timur. Eduardo talks to us about the Zoo libraries, including his advanced type-erasure library, as well as the SWAR library which simulates ad-hoc SIMD within a register. We also discuss how he has taken inspiration and cues from the worlds of Biology and Physics to arrive at new thinking around software development, design and architecture. NewsQT 6.8 is released"Named Loops" proposal adopted into C - will C++ follow?C++ Online Call for Speakers is openLinksThe Zoo libraries"C++ Software Design" (book) - Klaus IglbergerKlaus Iglberger's talks on Type Erasure:"A Design Analysis""The Implementation Details"(Some of ) Ed's talks:"Using Integers as Arrays of Bitfields a.k.a. SWAR Techniques - CppCon 2019""Rehashing Hash Tables And Associative Containers" - C++ Now 2022" "Empowerment with the C++ Generic Programming Paradigm" - C++ Online 2024
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Yuri Minaev joins Timur and Phil. Yuri talks to us about static analysis and how PVS Studio helps. Then we chat about his work on a custom C++ parser, and what challenges he's encountered. News
CppCon 2024 keynotes on YouTube (via CppCon site):
Herb Sutter - "Peering Forward: C++'s Next Decade"Khalil Estell - "C++ Exceptions for Smaller Firmware"Amanda Rousseau - "Embracing an Adversarial Mindset for C++ Security"David Gross - "Ultrafast Trading Systems in C++"Daveed Vandevoorde - "Gazing Beyond Reflection for C++26"Coros - task-based parallelism library built on C++20 Coroutines
"The case of the crash when destructing a std::map" - Raymond ChenACCU 2025 Call for Speakers and (super) Early Bird TicketsLinksC++ Under the SeaPVS-Studio (download)PVS-Studio Blog Yuri's Webinar: Parsing C++ -
Phil and Timur are joined by a live audience at CppCon as we chat about Safety in C++, AI and the running of CppCast itself. NewsClang 19.1 releasedSean Baxter's "Safe C++"P3390R0: "Safe C++" - Sean's work written up as a proposalpartnership announcement from C++ AllianceSummary article on The RegisterLinksCore C++ (Israel) - Call for Speakers closes 22nd Sept!"Robots Are After Your Job: Exploring Generative AI for C++" - Andrei Alexandrescu's CppCon 2023 talk
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Benjamin Summerton joins Timur and Phil. Ben talks to us about what led him to benchmark the impact of the final and noexcept keywords, how to interpret his results, and the project that inspired him to do so in the first place. NewsBoost 1.86 releasedRealtimeSanitizer - new real-time safety testing tool for C and C++ projects that comes with Clang 20"Honey, I shrunk {fmt}: bringing binary size to 14k and ditching the C++ runtime" LinksJoin us for the CppCast CppCon SpecialPrevious episodes covering std lib implementations:Stephan T. Lavavej (MSVC)Stephan T. Lavavej and Sy Brand (MSVC)Billy O'Neil (MSVC)Marshall Clow (libc++)Eric Fiselier (libc++) "noexcept affects libstdc++’s unordered_set" - Arthur O'DwyerEpisode with Martin Hořeňovský, discussing non-portal random distributionEpisode with Frances Buontempo, also mentioning random numbers and the portable distribution issue"Free Your Functions" (video) - Klaus Iglberger (timed link to the bit that talks about performance)Ben's PSRayTracing repo
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Sándor Dargó joins Phil and Anastasia Kazakova. Sándor talks to us about why and how to reduce the final binary sizes your code produces, as well as the importance of clean code. News"cppfront: Midsummer update"Reddit Threadcpp2 episode from last yearAutoConfig: C++ Code Analysis Redefined (Sonar)“noexcept Can (Sometimes) Help (or Hurt) Performance” - Ben SummertonLinksBinary Sizes posts on Sándor's blogSándor's books"Parameterized testing with GTest" - Sándor Dargó"How to keep your binaries small?" - Sándor's C++ on Sea talk(s)(will add video links when available)
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Doug Gregor joins Phil and Kevin Carpenter. Doug talks to us about his work on Swift at Apple, what the language is like and how it can interoperate with C++. News"Memory Safety in C++ vs Rust vs Zig" - B Shyam SundarC++ under the Sea workshops announcedmp-units 2.2.0 releasedLinks"Swift for C++ Practioners" - first in blog series from Doug GregorEpisode 341, with Dave Abraham talking about Swift/ C++ interop"Start with a Protocol" - blog post from Rob Napier (but link to Dave Abraham's "Crusty" talk no longer works)"Option(al) is not a Failure" - Phil's talk about Swift Error Handling"Option(al) is not a Failure" (yes, same name) - Phil's talk about past, present and possible future C++ error handling"Swift Concurrency"
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Luigi Ballabio joins Phil and Matt Godbolt. Luigi talks to us about QuantLib, an open-source library for financial models that he co-founded and now maintains. NewsWG21 St. Luis trip reports:"Official" report, collated by Inbal LevyHerb Sutter's trip reportLinksQuantLib home pageEpisode about borrow-checked C++ with Sean Baxter"QuantLib Python Cookbook" - book by Luigi"Implementing QuantLib" - book by Luigi
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Jessica Wong and Ian Petersen join Timur and Phil. Ian and Jessica talk to us about libunifex and other async code projects at Meta, how it has evolved in the proposed std::execution and what structured concurrency is. NewsXCode 16 betaThe std library that ships with XCode 16 supports "hardening"libc++ hardening modes"What’s the deal with std::type_identity?" - Raymond Chen"C++ programmer's guide to undefined behavior: part 1 of 11" - PVS Studio"C++ Brain Teasers: Exercise Your Mind" - Anders Schau KnattenLinks"std::execution" - P2300R9"async_scope – Creating scopes for non-sequential concurrency" - P3149R3"Notes on structured concurrency, or: Go statement considered harmful"Folly Coro
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Zach Laine joins Phil and Timur. Zach talks to us about the Boost collection of libraries, his contributions to it, a little of its history and where it's going, and a new project that aims to get back to Boost's original roots. NewsTiming vulnerability in Kyber due to compiler optimization passJUCE 8 releasedC++ Under the Sea - new conference in The NetherlandsLinksBoost
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Sean Baxter joins Timur and Phil. Sean explains how he has managed to implement a borrow checker for C++ in his Circle compiler. In fact his implementation addresses all the same safety issues that Rust addresses. News"Noisy: The Class You Wrote a Hundred Times"Reddit discussion"Addressing That Post About final"Conference News:Pure Virtual C++ 2024 videosC++ on Sea 2024 - full scheduled published LinksJet Propulsion LabCircle homepage"Safe C++" - Sean's video covering the implementation discussed on the episodeP2687R0 - "Design Alternatives for Type-and-Resource Safe C++" - Stroustrup & Dos ReisP2771R0 - "Towards memory safety in C++"Clang's "Lifetime Extensions for C++" RFC
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Mara Bos joins Phil and Timur. Mara talks to us about her work on the Rust evolution team and how she uses embedded Rust for drone flight controllers. We chat about some of the differences and similarities between C++ and Rust, and what the two languages can, and should, learn from each other. NewsGCC 14 releasedChangesReddit discussion"An informal comparison of the three major implementations of std::string" (updated) - Raymond ChenBugInsight – New memory leak and deadlock finder for C and C++ on WindowsReddit discussion Links"Rust Atomics and Locks" - Mara's book"driveway moment" (Wiktionary)
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Niels Lohmann joins Timur and Phil. Niels talks to us about his popular JSON library, JSON for Modern C++ (often just known as nlohmann/json, after its github repo). We chat about the history and purpose of the library, with an interesting aside into starting and maintaining a popular OSS library, as well as what Niels is up to today. News"The Performance Impact of C++'s final Keyword" - Benjamin SummertonReddit discussionKris Jusiak: Meta-meta programming! (Reddit)Links"Tips on Surveying the C++ Community" - Anastasia Kazakova's talkJSON for Modern C++
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Sy Brand joins Phil and Timur. Sy talks about the imminent Pure Virtual C++ conference that they have been running with Microsoft's backing for a few years. Sy also discuss what they have been up to as Developer Advocate at Microsoft, as well as some fascinating outside interests. NewsC++ Foundation's C++ 2024 Developer survey resultsP3236R0: "Please reject P2786 and adopt P1144"P2786R5: "Trivial Relocatability For C++26"P1144R10: "std::is_trivially_relocatable"P1029R3: "move = bitcopies" (earlier alt paper)"C++20 modules and Boost: an analysis""Boston C++ April 2024 online meetup"LinksSy's short filmsPure Virtual C++ 2024 conference'BF' written in DWARF debug info
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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. NewsCppCon - Call for SpeakersACCU 2024 OnlineBjarne Stroustrup responds to White House warning against C++David Sankel's post on Boost splitLinksNew C++ meetup in Vienna, AustriaTokyo ISO C++ Committee Trip Reports:In-depth status reportHerb Sutter's reportThink-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"
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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 talkGemini refuses to talk about C++ 20 Concepts to someone under the age of 18!Hacker News threadTwitch streamer's reaction (ThePrimeTime)“White House urges developers to dump C and C++” - InfoWorldConferences: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 studentsPaper'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 DevelopmentDancing, 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
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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 BrandNVidia interview question - Reddit threadLinksHistory of DelphiCompiler ExplorerAlso Compiler ExplorerCompiler Explorer Public Dashboard (live stats)
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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++. NewsThe C++ Iceberg"C++20 Concepts applied - Safe bitmasks using scoped enums" - blog post by Andreas FertigACCU conference: Early-bird tickets and workshopsLinksReddit thread on Episode 375 with Daveed VandervoordeRainer's website and blogRainer at Meeting C++ online, Feb 21stRainer's "Concurreny in Modern C++" workshop at C++ Online, March 14th
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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. NewsMeeting 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 postReddit discussion C++ Online WorkshopsLinksP2996R1 - "Reflection for C++26"P1240R2 - "Scalable Reflection in C++""C++ Templates - The Complete Guide" - book (Vandevoorde, Josuttis)
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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. NewsMatt Godbolt on ComputerphilePVS-Studio C++ quizBoston C++ meetupC++ Now LinksP2300R7 - std::execution (a.k.a. Sender/Receiver)
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