CppCast

Hosted by Mathieu Ropert & Jason Turner

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Episodes

406

Latest episode

May 2026

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About the show

Once a month, Jason sits 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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60 recent

May 18, 2026Episode 4071 hr 8 min

GPU Programming and HLSL with Chris Bieneman

Jason and Mathieu are joined by Chris Bieneman to discuss GPU programming and the evolution of HLSL, the challenges of floating-point determinism on GPUs, and lessons from over a decade of shading language and compiler work. News Sure, xor'ing a register with itself is the idiom for zeroing it out, but why not sub? - Raymond Chen, The Old New Thing Preventing Integer Overflow in Physical Computations - Mateusz Pusz, mp-units Let's check vibe code that acts like optimized C++ but is actually a mess - Andrey Karpov, PVS-Studio Links Developer Toolchain for the PlayStation 4 - Paul Robinson (2013 LLVM US Dev Meeting) HLSL: Decades in the Making - Chris Bieneman (Khronos Shading Languages Symposium 2026) GLSL: Origins, Observations and Opportunities - Randi Rost (Khronos Shading Languages Symposium 2026) Redefining the Software Engineering Profession for AI - Mark Russinovich & Scott Hanselman (ACM) Two Compilers, One Language, No Specification - Chris Bieneman (2024 LLVM Developers' Meeting) Ecma TC57 - HLSL Standardization Committee (GitHub) microsoft/hlsl-specs - HLSL Specifications (GitHub)

April 20, 2026Episode 4061 hr 4 min

Compiler Warnings as Errors with Keith Stockdale

Jason and Mathieu are joined by Keith Stockdale to discuss C++26 news, his experience upgrading Sea of Thieves from C++14 to C++20 across compilers, and the practical challenges of raising compiler warning levels and enabling warnings as errors. C++26 is Done - Trip Report, March 2026 ISO C++ Standards Meeting Announcing Meeting C++ 2026 Dear ImGui Explorer Common Package Specification Is Out the Gate

April 6, 2026Episode 40559 min

Building a Compiler Inside the C++ Compiler with Daniel Nikpayuk

Daniel Nikpayuk joins Jason to talk about ccTMP, his C++17 template metaprogramming library that builds a functional type system at compile time by encoding bytecode as template parameters in continuation-passing style — letting the C++ compiler itself optimise away the interpretation layer. They also cover Daniel's path into C++, from typesetting Inuktitut in LaTeX to his longer-term goal of a multimedia programming language for Indigenous storytelling. Cache-Explorer TeaScript C++ Library imrefl autocereal

February 23, 2026Episode 40452 min

Job Hunting and Optimizing Compilers with Jamie Pendergast

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 and Systems Programming Cyrex Optimizing Compiler

October 24, 2025Episode 4031 hr 2 min

Reflecting on Timur and Phil

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 350, with Timur and Phil ACCU Conference and C++ on Sea, merging: Announcement post Tickets - Super Early Bird at time of posting Catch23 repo P3846R0 - "C++26 Contract Assertions, Reasserted" ADSP: The Podcast Two's Complement - A Programming Podcast by Matt (Godbolt) and Ben (Rady)

October 10, 2025Episode 4021 hr 3 min

Reflection and C++26, with Herb Sutter

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

July 3, 2025Episode 40151 min

BrontoSource and Swiss Tables

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 cppreference/com Arthur O'Dwyer's acronym glossary Matt’s Swiss Tables talk at CppCon Example of BrontoSource integration in Compiler Explorer

June 13, 2025Episode 4001 hr 2 min

Friends-and-Family Special

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 Grimm Rainer's website and blog - with updates on his ALS journey

May 30, 2025Episode 39951 min

From Refactoring to (physical) Relocation

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++ on Sea schedule (with Kristen and Timur's keynotes) BrontoSource "What Can We Learn From the Results of C++ Community Surveys?" - Anastasia Kazakova "Sorting Resumes" - Joel Spolsky (introducing the idea of filtering) "How to Build Your First C++ Automated Refactoring Tool" - Kristen's CppCon 2023 talk

May 16, 2025Episode 3981 hr 2 min

libstdc++

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