this post was submitted on 13 Apr 2024
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    Supreme leader mad (sh.itjust.works)
    submitted 7 months ago by [email protected] to c/[email protected]
    102 comments fedilink hide all child comments
     
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    [–] [email protected] 137 points 7 months ago (2 children)

    There is no C++ allowed in the Linux kernel and Linus has gone on several major rants about how terrible a language it is.

    [–] [email protected] 53 points 7 months ago (4 children)

    Is it all C?

    [–] [email protected] 86 points 7 months ago (1 children)

    There’s assembly and makefiles too

    Less of a joke answer, there has been work to allow Rust bindings for drivers.

    [–] [email protected] 26 points 7 months ago

    rust too

    [–] [email protected] 85 points 7 months ago (2 children)

    According to the github analysis, the kernel repository is:

    • C 98.3%
    • Assembly 0.7%
    • Shell 0.4%
    • Makefile 0.2%
    • Python 0.2%
    • Perl 0.1%
    • Other 0.1%

    So yeah, its basically all C, plus a tiny bit of assembly for very low level bootstrapping and some helper scripts.

    [–] [email protected] 30 points 7 months ago (1 children)

    Yeah but a lot of that C code has inline assembly so it's more like 5-10% asm.

    [–] [email protected] 13 points 7 months ago (1 children)

    Inline assembly is such a shit practice. But c++ bad.

    [–] [email protected] 11 points 7 months ago (1 children)

    Sometimes you can't get around it though.

    [–] [email protected] 1 points 7 months ago

    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.

    [–] [email protected] 1 points 7 months ago (2 children)

    Wot no Delphi?

    [–] [email protected] 1 points 7 months ago

    Yeah, indeed, why not 🤔...

    [–] [email protected] 17 points 7 months ago (1 children)

    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.

    [–] [email protected] 3 points 7 months ago (1 children)

    I've read that they are writing parts of the kernel in Rust

    [–] [email protected] 4 points 7 months ago (2 children)

    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.

    [–] [email protected] 2 points 7 months ago (1 children)

    Yes, first Rust code was released in 6.6 I think and MS also started implementing Rust code in the Windows kernel.

    [–] [email protected] 3 points 7 months ago (1 children)

    Rust is certainly interesting. I think it's the C++ we need.

    [–] [email protected] 1 points 7 months ago

    Exactly my thoughts 👍.

    [–] [email protected] 1 points 7 months ago

    Personally I find the syntax unreadable.

    [–] [email protected] 1 points 7 months ago (1 children)

    Always has been

    [–] [email protected] 4 points 7 months ago

    Why do I suddenly feel a meme coming on? 😅