CppCast

Jason is joined this week by Jamie Pendergast to discuss the current job market, learning to program, and optimizing compilers. Designated Initializers, the best feature of C++20 · Mathieu Ropert Support for C++26 Reflection has been merged into GCC trunk! : r/cpp Latest News From Upcoming C++ Conferences (2026-01-14) : r/cpp Call for Papers - NDC TechTown 2026 | Software Conference for Embedded a...

Timur and Phil reflect on Phil and Timur. We share some personal updates as well as news from the community. News "Why we didn't rewrite our feed handler in Rust" - post from DataBento "C++ reflection (P2996) and moc" - from Qt wiki "Poll: Does your project use terminating assertions in production?" - from Herb's blog Links Episode 376, with Rainer Grimm Final entry on Rainer's blog :-( Epsiode 35...

Phil and Timur are joined by Herb Sutter to catch up on what's going in to C++26 which, let's be honest, is dominated by reflection. News CLion now has a constexpr debugger "CMake for complex projects" - tutorial: Part one Part two Safe C++ proposal is not being continued Episode with Sean Baxter Links Herb's Reflection talk at CppCon 2025 Herb's Contract's talk at CppCon 2025

Matt Kulukundis joins Timur and Phil. Matt talks to us about BrontoSource, his start-up focused on refactoring, updating or migrating large codebases, as well as his work on Swiss Tables. News Herb Sutter's WG21, Bulgaria, trip report End of active development on jemalloc "Amortized O(1) complexity" - Andreas Weiss' lightning talk Reddit discussion of filter view issue Links Acronyms on cppreferen...

Phil and Timur are joined by Jason Turner, Matt Godbolt, Anastasia Kazakova and Guy Davidson to celebrate 400 episodes of CppCast and catch up with the co-hosts that have helped us keep up for the last 50 of them! News Boost. Bloom has been accepted into Boost "Three types of name lookups in C++" - Sandor Dargo "How Compiler Explorer Works in 2025" - Matt Godbolt Links Episode 376 with Rainer Grim...

Kristen Shaker joins Timur and Phil. Kristen talks to us about her C++ on Sea keynote about the C++ interview process, her previous work at Google, and why she has made a slightly unusual career change. News libc++ removed the base template for std::char_traits "how to break or continue from a lambda loop?" - Vittoria Romeo Results from the 2025 Annual C++ Developer Survey "Lite" (pdf) Links C++ o...

Jonathan Wakely joins Phil and Timur. Jonathan talks to us about libstdc++ (GCC's standard library implementation), of which he is the lead maintainer, and tackles some tough questions like ABI compatibility - and how GCC and libstdc++ approach it. News GCC 15 released (release notes) Boost. OpenMethod review (finished) 2025 Annual C++ Developer Survey "Lite" (closed) Links GCC Mailing Lists

Daisy Hollman joins Phil and Anastasia. Daisy talks to us about the current state of the art in using LLM-based AI agents to help with software development, as well as where that is going in the future, and what impacts it is having (good and bad). News Clang 20 released Boost 1.88 released JSON for Modern C++ 3.12.0 Conferences: Pure Virtual C++ 2025 Full schedule C++ Now 2025 C++ on Sea 2025 - s...

Louis Dionne joins Phil and Timur. Louis talks to us about his role as code owner of libc++ (clang's standard library implementation) and the standard library hardening proposal that was just accepted into C++26, why this is important, and what you can do even today. News GDC 2025: How Build Insights Reduced Call of Duty: Modern Warfare II’s Build Times by 50% C++ Core Guidelines issue to remove ....

Timur and Phil return after an extended break with news and updates News Bjarne Stroustrup on How He Sees C++ Evolving Conferences round-up: ACCU Conference 2025 C++ Now 2025 C++ on Sea 2025 C++ North 2025 CppCon New Meetups: Singapore C++ USers Group ACCU Cambridge Links "Contracts and Safety for C++26" - C++ London January event "Not Your Grandparent's C++" - Phil's ACCU Cambridge talk

Anders Knatten joins Phil and Timur. Anders reminds us about cppquiz.org and tells to us about his new book, C++ Brain Teasers, how that relates to the site and why it's has good practical applicability. News New report by the US Cybersecurity and Infrastructure Security Agency (CISA) C++ Safe Buffers - a new Clang20 feature CppFront version 0.8 is out “Safe and efficient C++ interoperability via...

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. News The 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...

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. News QT 6.8 is released "...

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 Mindse...

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. News Clang 19.1 released Sean Baxter's "Safe C++" P3390R0: "Safe C++" - Sean's work written up as a proposal partnership announcement from C++ Alliance Summary article on The Register Links Core C++ (Israel) - Call for Speakers closes 22nd Sept! "Robots Are After Your Job: E...

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. News Boost 1.86 released RealtimeSanitizer - new real-time safety testing tool for C and C++ projects that comes with Clang 20 "Honey, I shrunk {fmt}: bringing binary size...

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 Thread cpp2 episode from last year AutoConfig: C++ Code Analysis Redefined (Sonar) “noexcept Can (Sometimes) Help (or Hurt) Performance” - Ben Summerton Links Binary Sizes posts on...

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 Sundar C++ under the Sea workshops announced mp-units 2.2.0 released Links "Swift for C++ Practioners" - first in blog series from Doug Gregor Episode 341, with Dave Abraham talking about...

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. News WG21 St. Luis trip reports: "Official" report, collated by Inbal Levy Herb Sutter's trip report Links QuantLib home page Episode about borrow-checked C++ with Sean Baxter "QuantLib Python Cookbook" - book by Luigi "Implementing QuantLi...

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. News XCode 16 beta The 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 g...

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. News Timing vulnerability in Kyber due to compiler optimization pass JUCE 8 released C++ Under the Sea - new conference in The Netherlands Links Boost

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 videos C++ on Sea 2024 - full scheduled publ...

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. News GCC 14 released Changes Reddit discussion "An informal comparison of the three major implementations...

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...