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cppyy: Automatic Python-C++ Bindings

news.ycombinator.com Unknown 2025-07-25 01:39:51

cppyy: Automatic Python-C++ bindings cppyy is an automatic, run-time, Python-C++ bindings generator, for calling C++ from Python and Python from C++. Run-time generation enables detailed specialization for higher performance, lazy loading for reduced memory use in large scale projects, Python-side cross-inheritance and callbacks for working with C++ frameworks, run-time template instantiation, automatic object downcasting, exception mapping, and interactive exploration of C++ libraries. cppyy

Topics: boost cppyy int python std

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C++ Coroutines Advanced: Converting std:future to asio:awaitable

news.ycombinator.com Lei Xia 2025-07-27 23:50:12

July 15, 2025 · 696 words · 4 min In modern C++ development, coroutines have brought revolutionary changes to asynchronous programming. However, when using boost::asio or standalone asio, we often encounter scenarios where we need to convert traditional std::future<T> to asio::awaitable<T> . This article will detail an efficient, thread-safe conversion method. Problem Background When using asio coroutines, we often encounter scenarios like: Need to call third-party libraries that return std:

Topics: asio future handler result std

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Jank is C++

news.ycombinator.com Unknown 2025-07-28 19:22:01

jank is C++ If you've wondered how much a solo dev can build for seamless C++ interop on a quarter, you're about to find out. In April, jank was unable to reach into C++ at all. Toward the end of this post, I'll show some real world examples of what works today. Before that, though, I want to say thank you for the sponsorship this quarter, not only by all of my individual Github sponsors, but also by Clojurists Together. I also want to say thank you to Vassil Vassilev and Lang Hames for buildin

Topics: cpp ftxui jank std type

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Show HN: BinaryRPC – Lightweight WebSocket-based RPC framework in modern C++

news.ycombinator.com Unknown 2025-07-29 23:32:12

BinaryRPC 🧭 Motivation While working at my company, I had previously developed a WebSocket server prototype in Java. However, over time, we started to experience performance issues. This led me to turn to C++, a language that offers more speed and low-level system control. Through my research, I discovered that uWebSockets was one of the best options in terms of performance, so I began developing with this library. However, since uWebSockets is a very "core" library, I had to handle many deta

Topics: app binaryrpc session std string

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jank is C++

news.ycombinator.com Unknown 2025-07-30 21:22:01

jank is C++ If you've wondered how much a solo dev can build for seamless C++ interop on a quarter, you're about to find out. In April, jank was unable to reach into C++ at all. Toward the end of this post, I'll show some real world examples of what works today. Before that, though, I want to say thank you for the sponsorship this quarter, not only by all of my individual Github sponsors, but also by Clojurists Together. I also want to say thank you to Vassil Vassilev and Lang Hames for buildin

Topics: cpp ftxui jank std type

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jank Is C++

news.ycombinator.com Unknown 2025-07-31 02:22:01

jank is C++ If you've wondered how much a solo dev can build for seamless C++ interop on a quarter, you're about to find out. In April, jank was unable to reach into C++ at all. Toward the end of this post, I'll show some real world examples of what works today. Before that, though, I want to say thank you for the sponsorship this quarter, not only by all of my individual Github sponsors, but also by Clojurists Together. I also want to say thank you to Vassil Vassilev and Lang Hames for buildin

Topics: cpp ftxui jank std type

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Features of D That I Love

news.ycombinator.com Unknown 2025-08-15 05:45:28

10 features of D that I love This is a beginner-friendly post exploring some of my favourite parts of the D programming language, ranging from smaller quality of life stuff, to more major features. I won’t talk much about D’s metaprogramming in this post as that topic basically requires its own dedicated feature list, but I still want to mention that D’s metaprogramming is world class - allowing a level of flexibility & modelling power that few statically compiled languages are able to rival.

Topics: import int lower std string

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Math.Pow(-1, 2) == -1 in Windows 11 Insider build

news.ycombinator.com Unknown 2025-08-16 21:04:45

Description The following is copied with extra bits from https://aka.ms/AAwwjwl (Feedback Hub) to raise awareness of this issue: Hello, I'm a contributor to osu! (https://github.com/ppy/osu). A user reported a really weird problem with our game that only happens in the current version of Canary (27881.1000) in ppy/osu#33948. I've narrowed it down to ppy/osu#33948 (comment), which is Math.Pow(-1, 2) returning -1 instead of 1 for some odd reason. Used VSCode for C# installation of .NET 8 (what

Topics: https osu pow ppy std

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C++ Seeding Surprises (2015)

news.ycombinator.com M.E. O'Neill 2025-08-18 15:11:40

Properly seeding random number generators doesn't always get the attention it deserves. Quite often, people do a terrible job, supplying low-quality seed data (such as the system time or process id) or combining multiple poor sources in a half-baked way. C++11 provides std::seed_seq as a way to encourage the use of better seeds, but if you haven't thought about what's really going on when you use it, you may be in for a few surprises. In contrast to C++11, some languages, such as popular script

Topics: 32 bit seed seed_seq std

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CUDA Ray Tracing 2x Faster Than RTX: My CUDA Ray Tracing Journey

news.ycombinator.com Tanguy Fautré 2025-08-26 08:42:38

Welcome! This article is a deep dive into how I made a CUDA-based ray tracer that outperforms a Vulkan/RTX implementation—sometimes by more than 3x—on the same hardware. If you're interested in GPU programming, performance optimization, or just want to see how far you can push a path tracer, you're in the right place. The comparison is with RayTracingInVulkan by GPSnoopy, a well-known Vulkan/RTX renderer. My goal wasn't just to port Ray Tracing in One Weekend to CUDA, but to squeeze every last

Topics: cuda float memory ray std

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String Interpolation in C++ Using Glaze Stencil/Mustache

news.ycombinator.com Unknown 2025-09-01 11:05:14

Glaze provides string interpolation for C++ structs through the stencil and mustache formats. These provide templating mechanisms for formatting structured data into strings, inspired by the Mustache templating language. This enables the generation of dynamic output by combining predefined templates with C++ structs. Basic Usage¶ struct person { std :: string first_name {}; std :: string last_name {}; uint32_t age {}; bool hungry {}; bool employed {}; }; // Basic interpolation std :: string_vi

Topics: glz html layout result std

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Type-based vs. Value-based Reflection

news.ycombinator.com Unknown 2025-09-15 21:34:42

Type-based vs Value-based Reflection Frequently, whenever the topic of Reflection comes up, I see a lot of complains specifically about the new syntax being added to support Reflection in C++26. I’ve always thought of that as being largely driven by unfamiliarity — this syntax is new, unfamiliar, and thus bad. I thought I’d take a different tactic in this post: let’s take a problem that can only be solved with Reflection and compare what the solution would look like between: the C++26 value-ba

Topics: reflection std template type value

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Latest Tech News

cppyy: Automatic Python-C++ Bindings

C++ Coroutines Advanced: Converting std:future to asio:awaitable

Jank is C++

Show HN: BinaryRPC – Lightweight WebSocket-based RPC framework in modern C++

jank is C++

jank Is C++

Features of D That I Love

Math.Pow(-1, 2) == -1 in Windows 11 Insider build

C++ Seeding Surprises (2015)

CUDA Ray Tracing 2x Faster Than RTX: My CUDA Ray Tracing Journey

String Interpolation in C++ Using Glaze Stencil/Mustache

Type-based vs. Value-based Reflection

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