That's not true when the topic is operating system kernels.

checker659 · 2025-12-10T04:44:48 1765341888

OS kernels? Everything from numpy to CUDA to NCCL is using C/C++ (doing all the behind the scene heavy lifting), never mind the classic systems software like web browsers, web servers, networking control plane (the list goes on).

lmm · 2025-12-10T04:56:55 1765342615

Newer web servers have already moved away from C/C++.

Web browsers have been written in restricted subsets of C/C++ with significant additional tooling for decades at this point, and are already beginning to move to Rust.

drnick1 · 2025-12-10T05:08:29 1765343309

There is not a single major browser written in Rust. Even Ladybird, a new project, adopted C++.

lmm · 2025-12-10T05:34:01 1765344841

Firefox and Chrome already contain significant amounts of Rust code, and the proportion is increasing.

vbezhenar · 2025-12-10T06:22:00 1765347720

https://github.com/chromium/chromium : C++ 74.0%, Java 8.8%, Objective-C++ 4.8%, TypeScript 4.2%, HTML 2.5%, Python 2.4%, Other 3.3%

https://github.com/mozilla-firefox/firefox : JavaScript 28.9%, C++ 27.9%, HTML 21.8%, C 10.4%, Python 2.9%, Kotlin 2.7%, Other 5.4%

How significant?

estebank · 2025-12-10T06:50:44 1765349444

According to https://4e6.github.io/firefox-lang-stats/, 12%.

I would love an updated version of https://docs.google.com/spreadsheets/d/1flUGg6Ut4bjtyWdyH_9e... (which stops in 2020).

For Chrome, I don't know if anyone has compiled the stats, but navigating from https://chromium.googlesource.com/chromium/src/+/refs/heads/... I see at least a bunch of vendored crates, so there's some use, which makes sense since in 2023 they announced that they would support it.

RealityVoid · 2025-12-10T06:40:12 1765348812

> Web browsers have been written in restricted subsets of C/C++ with significant additional tooling for decades at this point

So, written in C/C++? It seems to me you're trying to make a point that reality doesn't agree with but you stubbornly keep pushing it.

lmm · 2025-12-10T06:59:06 1765349946

> So, written in C/C++?

Not in the sense that people who are advocating writing new code in C/C++ generally mean. If someone is advocating following the same development process as Chrome does, then that's a defensible position. But if someone is advocating developing in C/C++ without any feature restrictions or additional tooling and arguing "it's fine because Chrome uses C/C++", no, it isn't.