this post was submitted on 13 Apr 2024
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There is no C++ allowed in the Linux kernel and Linus has gone on several major rants about how terrible a language it is.
Then why does he write C++?
https://github.com/subsurface/subsurface/commit/1b16d570a1b6700295153bd6597b148b65000458
Is it all C?
Always has been
Why do I suddenly feel a meme coming on? 😅
Lots of core UNIX and Linux projects are. C++ is not liked by a lot of low level FOSS community. I think Rust is going to get further into these areas. I know C++ well but prefer C. I know plenty of others who feel the same.
I've read that they are writing parts of the kernel in Rust
Yes, I think Rust is a better C++ and will replace it in many places. Though all three will be around for ever to be honest.
Personally I find the syntax unreadable.
Yes, first Rust code was released in 6.6 I think and MS also started implementing Rust code in the Windows kernel.
Rust is certainly interesting. I think it's the C++ we need.
Exactly my thoughts 👍.
According to the github analysis, the kernel repository is:
So yeah, its basically all C, plus a tiny bit of assembly for very low level bootstrapping and some helper scripts.
Wot no Delphi?
Yeah, indeed, why not 🤔...
Yeah but a lot of that C code has inline assembly so it's more like 5-10% asm.
Inline assembly is such a shit practice. But c++ bad.
Sometimes you can't get around it though.
Afaik MSVC forbids it and it’s one of the very few nice things about c++ on windows.
If you need to write assembly don’t fucking do it in a cpp file. Create a header, an assembly file, assemble it and link to it.
There’s assembly and makefiles too
Less of a joke answer, there has been work to allow Rust bindings for drivers.
rust too