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)
Sequence-Oriented Programming
Tristan Brindle joins Timur and Phil. Tristan talks to us about a safer alternative to iterators and his library, Flux, that implements it. News 60 terrible tips for a C++ developer Big, combined, committee trip report from Varna CLion 2023.2 EAP4: AI Assistant "Making C++ Memory-Safe Without Borrow Checking, Reference Counting, or Tracing Garbage Collection" Links Episode 78 of CppCast, mentioning Cling Episode of ADSP recorded at C++ on Sea Episode 152 of CppCast, with Tristan and the C++ London Uni team Flux on GitHub
Contracts
Joshua Berne joins Phil and Timur. Joshua talks to us about the previous week's ISO C++ meeting in Varna, Bulgaria, then focuses on the current state of the contracts proposal that he has been central to, as well as a bit of its history. News ISO C++ trip report's from Varna: Herb Sutter's trip report Jonathan Müller's trip report GCC 14 NRVO enhancements (Reddit) P2025 proposes guaranteed NRVO How to get NRVO before C++26 XCode 15 beta Links P2831 - "Functions having a narrow contract should not be noexcept" P2521 - The current contracts MVP P2695 - "A proposed plan for Contracts in C++" P2811 - "Contract-Violation Handlers" P2834 - "Semantic Stability Across Contract-Checking Build Modes" P2877R0 - "Contract Build Modes, Semantics, and Implementation Strategies" P2751 - "Evaluation of Checked Contract-Checking Annotations" P2552 - "On the ignorability of standard attributes" p2786 - "Trivial relocatability options" P2839 - "Nontrivial Relocation via a New owning reference Type" P0843R8 - "inplace_vector"
Modules and build systems
Daniel Ruoso joins Phil and Timur. After covering a couple of blog posts and a new UI library, we welcome Daniel back to talk with us about modules, package and build systems and SG15, the tooling study group. We also revisit the Ecosystem International Standard. News Modern C++ In-Depth — Is string_view Worth It? How to check if a pointer is in a range of memory - Raymond Chen Nui - new C++ Webview UI library Nui on Reddit Timur's Undefined Behaviour survey Links P2898R0 - "Importable Headers are Not Universally Implementable" "Clang Automated Refactoring for everyone with clangmetatool" - Daniel's C++ Now 2019 talk P1689R5 - "Format for describing dependencies of source files" (Kitware)
C++ in Finance
Antony Peacock joins Timur and Phil. After rounding up the news, we chat with Antony about what it's like to work in finance as a C++ developer, the similarities and differences to games dev and how you can break in to a role in finance. We also discuss what it's like to work in tech as someone with dyslexia. News Visual Studio 17.6 released Valgrind 3.21 released Snitch 1.1 Meeting C++ Call for Speakers (until June 18) CppCon Call for Speakers (until June 25) Links P2547R1 - "Language Support for Customisable Functions" Maven on C++ "How to get into the tech industry" (Maven's blog) Interview question at Maven "C++ 20 Techniques for Algorithmic Trading" (webinar) "C++ Concepts and Fireside Chat on Algorithmic Trading" (webinar) "C++ and Python for Algorithmic Trading" (webinar) Example algo trading code from webinar series (1) Example algo trading code from webinar series (2) Antony's article on Neurodiversity and Dyslexia Diversita (UK) P0201R6 - "polymorphic_value: A Polymorphic Value Type for C++" P1950R2 - "indirect_value: A Free-Store-Allocated Value Type For C++" EVE - the Expressive Vector Engine P1385R7 - "Linear Algebra" P1935R2 - "A C++ Approach to Physical Units" mp-units - Mateusz Pusz' implementation of physical units P2547R0 - "Language support for customisable functions" "Why tag_invoke is not the solution I want" - Barry Revzin
Conan 2.0
Luis Campos joins Phil and Timur. After some compiler and language news, we chat with Luis about the recent Conan 2.0 release, the state of package management in C++, today and what's happening in the world of C++ standards that may impact it in the future. News GCC 13 released CppFront "spring update" Mojo - a new language with Python-like syntax but runs like C++ CrabLang - a fork of Rust Timur's Undefined Behaviour survey Links Conan 2.0 P2656R2 - "C++ Ecosystem International Standard" Conan on Twitter "A Lock-free Atomic shared_ptr" - Timur's C++ Now 2022 talk "Advanced Dependencies Model in Conan 2.0" - Diego's ACCU 2022 talk
AI Infrastructure
Ashot Vardanian joins Timur and Phil. After some conference updates, news about the ISO C++ Developer Survey, Sonar integration in Compiler Explorer and some posts on modules and performance, we chat with Ashot Vardanian about AI and the infrastructure that underpins it. Ashot talks to us about some of the libraries and tools he and his startup have been developing over the past few years with some impressive numbers behind them. News Core C++ (Israel) - 5th-8th June Meeting C++ 2023 - 12th-14th November C++ Now 2023 - 7th-12th May C++ on Sea 2023 schedule announced - 27th-30th June CppNorth - 17th-19th July 2023 ISO C++ Developer Survey "Sonar ❤️ Compiler Explorer: Write clean C++ code inside your browser" "C++20 modules in clang" "Horrible Code, Clean Performance" Links Unum (Ash's AI research company) Unum repos on GitHub Cpp Armenia User Group
Native Languages (programming and natural)
Mathew Benson joins Phil and Timur. After some news on new dev tool releases and some welcome improvements to iostreams in GCC13, we talk to Mathew Benson about what it's like to learn and use C++ in Africa and the implications for the hardware and our choices in programming language. Mathew also draws an interesting parallel to natural languages. News CLion 2023.1 released Qt Creator 10 released Buck2 released "A leaner <iostream> in libstdc++ for GCC 13" Links Timur's three-question Undefined Behaviour survey CppAfrica on Twitter CppAfrica on Discord
Cpp2, with Herb Sutter
Herb Sutter joins Phil and Timur. We catch up on the news about LLVM 16 being released, a new book on initialisation in C++ and a couple of new user groups. Then we talk to Herb about his new language/ alternate syntax, Cpp2, which compiles down to C++ in much the same way that C with Classes compiled down to C. News LLVM 16.0.0 released "C++ initialisation story" - a new book by Bartlomiej Filipek New user group forming in Prague - Miloš Anđelković New user group forming in Helsinki - Timur Doumler Links CppFront - the compiler for Cpp2 "Can C++ be 10x Simpler & Safer?" - Herb's CppCon keynote introducing Cpp2 and CppFront
Safety Critical C++
Andreas Weis joins Timur and Phil. After some news about Boost, std::format and performance, Andreas talks to us about safety critical application domains, safety in C++ in general, and the difference between safety in security. News Boost libraries may drop support for older language versions "Fun with printing tables with std::format and C++20" - Bartlomiej Filipek "C++20 Formatting Library, Parts 1. 2 and 3" - Gajendra Gulgulia "Decreasing the Number of Memory Accesses, 1/2" - Ivica Bogosavljevic using std::cpp (conference in Madrid) Links MUC++ (The Munich C++ User Group) ComicSansMs - Andreas on StackOverflow The EU's Cyber Resilience Act "Why not simply implement borrow checking in C++?" - Sean Baxter on Twitter P2771R0 - "Towards memory safety in C++" "Rust Safety is not superior to C++" - Bjarne Stroustrup P2739R0 - "A call to action: Think seriously about 'safety'; then do something sensible about it" P2759R1 - "DG Opinion on safety for ISO C++" P2723R1 - "Zero-initialize objects of automatic storage duration" D2795R0 - "Correct and incorrect code, and 'erroneous behaviour'" P2809R0 - "Trivial infinite loops are not Undefined Behavior" MISRA
Carbon, with Richard Smith
Richard Smith joins Timur and Phil. After the usual news round-up, we chat with Richard about the new C++ successor language, Carbon. Richard is one of the three lead contributors to Carbon and he discusses the philosophy and some of the special features that make Carbon different. News Conan 2.0 release CMake debugger in Visual Studio Unreal Engine - C++ Complete Guide The Italian C++ Conference Links P1881R0 - Epochs proposal P2137R0 - "Goals and priorities for C++" (from March 2020) Carbon GitHub org - with lots of links
Issaquah trip report and how the C++ sausage is made
Nina Ranns joins Timur and Phil. After community news, including conferences, a new C++ community in Africa and a new project manager and build system, we talk to Nina about the recent ISO committee meeting in Issaquah where the technical work on C++23 was finalised, as well as an inside look at how the committee works and Nina's current project: allocator-friendly library types that don't allocate. News Core C++ (cfp open) CppIndia cfp C++ Now - call for volunteers C++ on Sea (speakers and tickets) C++ Africa Zork++ 0.5 Links Orsen Scott Card's Beekeeper Analogy P2806R0 - "Do Expressions" Nina's user type categories talk P2644R1 - "Final Fix of Broken Range‐based for Loop" P2047R1 - "An allocator aware optional type" Embracing Modern C++ Safely P2674R1 - "A trait for implicit lifetime types"
CppNorth and the Forgotten Developers
Mike Daum joins Phil and Timur. After some community news, including the state of modules support in CMake and a new compile-time parsing library inspired by Rust's macros, we talk to Mike about CppNorth - what it is, how it got started and what makes it different - then about company cultures, a new language from Epic, and the importance of catering to 'Dark Matter Developers'. News ACCU Schedule and registration CMake blog post about the state of C++20 Modules support P1689R5 "Format for describing dependencies of source files" "Macro Rules" - compile-time parser library from Max Pasichnyk Reddit discussion of Macro Rules Links CppNorth Exclusive Discount code for CppNorth registration (while available) CppNorth mentoring email CppNorth mentoring channel on Discord Orsen Scott Card's Beekeeper Analogy Verse, the new Unreal scripting language Talk on Verse, by Simon Peyton Jones "C++ Software Design" (book) - Klaus Iglberger
Val and Mutable Value Semantics
Dimi Racordon joins Timur and Phil. They first have a couple more conference speaker calls, a new C++20 test framework, and and some updates about Safety in C++ and the C++ successor languages announced last year. Then they talk to Dimi Racordon about the new language, Val, how it relates to C++, and why mutable value semantics are so powerful. News C++ Now Call for Speakers CppNorth Call for Speakers Snitch v1.0 - a "Lightweight C++20 testing framework" "The Year of C++ Successor Languages" - Lucian Radu Teodorescu "Supporting the Use of Rust in the Chromium Project" - Google Security Blog Links Dimi's CppCon 2022 talk on Val and C++ interop "I'll Build Myself" - Phil's song about building C++ P2739R0 - "A call to action: Think seriously about “safety”; then do something sensible about it" P2759R0 - "DG Opinion on Saftety for ISO C++" "The Rule of Two" val-lang.dev - the official website for Val
From Healthcare to Automotive
Honey Sukesan joins Phil and Timur. They first have a couple more conference announcements, an update on Cpp2 and a round-up of C++ in 2022. Then they talk to Honey Sukesan about her journey from working in Healthcare to working in the Automotive industry, and some of the surprising overlaps - as well as her personal journey during along the way. News CppNorth tickets on sale using std::cpp Call for Speakers "Cpp2 and cppfront: Year-end mini-update" "C++ at the end of 2022" - Bartlomiej Filipek "libstdc++13 gets C++20 " Links ToastMasters "Can software developers draw pictures" (Honey's CppCon 2020 Lightning Talk) "SOLID Principles Unleashed" (Honey's CppIndia 2022 talk)
Holiday Special with Phil Nash and Timur Doumler
Rob and Jason are back, at least for the holidays, and are joined by Timur Doumler and Phil Nash to talk about some of their recent news, and a super secret new project they are working on together. News Boost 1.81.0 released CLion 2022.3 released, with CMake debug and new (opt-in) UI C++ support in JetBrains' Fleet C++ passes Java on the TIOBE index "If we must, let's talk about safety" (Corentin Jabot) P2723R0 "Zero-initialize objects of automatic storage duration" (JF Bastien) NDC TechTown - Call for Speakers (ends May 19th) C++ on Sea - Call for Speakers (ends Jan 8th) ACCU - speakers selected, schedule soon Links P1774R8 "Portable Assumption" ([[assume]]) P2590R2 "Explicit lifetime managerment" (std::start_lifetime_as) "Type punning in modern C++" (video) "The Rules of Three, Five and Zero" (article) "Beyond the Rules of Three, Five and Zero" (article) "The Power of Clean C++" (webinar) Jason's C++ eBooks Jason's C++ print books Jason's "C++ Weekly" Youtube channel "Making C++ Fun, Safe, and Accessible" - Jason's C++ on Sea keynote