• Blackthorn@programming.dev
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    1 year ago

    Follow up of: “Mmm… should I put lifecycle annotation in these 10 structs or just use and Rc and call it a day?”. Rc and Box FTW.

  • skomposzczet@lemm.ee
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    1 year ago

    I think that’s the only thing I dislike about rust. Not having to use * to dereference but later having to use is tad confusing. I know it’s still clever solution but in this case I prefer c++'s straightforward consistency.

    Using ampersand never was problematic for me.

    • Pfosten@feddit.de
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      1 year ago

      C++ does have the problem that references are not objects, which introduces many subtle issues. For example, you cannot use a type like std::vector, so that templated code will often have to invoke std::remove_reference and so on. Rust opts for a more consistent data model, but then introduces auto-deref (and the Deref trait) to get about the same usability C++ has with references and operator->. Note that C++ will implicitly chain operator-> calls until a plain pointer is reached, whereas Rust will stop dereferencing once a type with a matching method/field is found. Having deep knowledge of both languages, I’m not convinced that C++ features “straightforward consistency” here…

  • danwardvs@sh.itjust.works
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    1 year ago

    This was me in courses that used C. Keep adding and removing * and & until the IDE was happy and it usually worked.

  • nothacking@discuss.tchncs.de
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    1 year ago

    Same for C, & yields a pointer to a value, and * allows you to access the data. (For rust people, a pointer is like a reference with looser type checking)

  • raubarno@lemmy.ml
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    1 year ago

    So… now the rustc borrow checker is the new video game boss that is nearly impossible to beat for newcomers, right?

      • nautilus@lemmy.dbzer0.com
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        1 year ago

        honestly with Go in general I’m in a perpetual cycle of being annoyed with it and then immediately being amazed when I find some little trick for efficiency - with stringer interfaces and the like