Hacker News: dubi_steinkek

New comment by dubi_steinkek in "Rust project goals: Immobile types and guaranteed destructors"

dubi_steinkek — Mon, 03 Aug 2026 11:44:18 +0000

Which stdlib collections and types should become `!Move`?

New comment by dubi_steinkek in "Rust project goals: Immobile types and guaranteed destructors"

dubi_steinkek — Mon, 03 Aug 2026 11:42:30 +0000

How so? This feel distinct from the "algebraic effects"-like features like constness, async, can-panic, can-unwind, etc., since this is a property of the types themselves rather than of functions.

crates.io: Development Update

dubi_steinkek — Mon, 13 Jul 2026 14:10:20 +0000

Article URL: https://blog.rust-lang.org/2026/07/13/crates-io-development-update/

Comments URL: https://news.ycombinator.com/item?id=48893007

Points: 5

# Comments: 0

New comment by dubi_steinkek in "Air is full of DNA"

dubi_steinkek — Mon, 20 Apr 2026 14:09:01 +0000

Do you have links to these youtubers? Sounds interesting

New comment by dubi_steinkek in "Chromium Has Merged JpegXL"

dubi_steinkek — Tue, 13 Jan 2026 15:38:05 +0000

That looks pretty good to me. Every `unsafe` function has clearly stated safety requirements, and every `unsafe` blocks justifies why the requirements are met.

New comment by dubi_steinkek in "LLVM: The bad parts"

dubi_steinkek — Tue, 13 Jan 2026 15:29:04 +0000

mainly, but it also supports alternative codegen backends (cranelift, rustc_codegen_gcc)

New comment by dubi_steinkek in "How well do you know C++ auto type deduction?"

dubi_steinkek — Mon, 15 Dec 2025 13:23:23 +0000

Why is this a perf footgun? As someone who doesn't write a lot of c++, I don't see anything intuitively wrong.

Is it that iterating over map yields something other than `std::pair`, but which can be converted to `std::pair` (with nontrivial cost) and that result is bound by reference?

New comment by dubi_steinkek in "Java Hello World, LLVM Edition"

dubi_steinkek — Mon, 08 Dec 2025 11:05:27 +0000

Maybe they can with postinstall scripts, but they usually don't.

For the most part, installing packaged software simply extracts an archive to the filesystem, and you can uninstall using the standard method (apt remove, uv tool remove, ...).

Scripts are way less standardized. In this case it's not an argument about security, but about convenience and not messing up your system.

New comment by dubi_steinkek in "Jujutsu worktrees are convenient (2024)"

dubi_steinkek — Mon, 08 Dec 2025 10:59:29 +0000

> there is no difference as jj is only a frontend to git.

That's not really true in this case, as the worktree feature from jujutsu is not implemented on top of git worktrees.

New comment by dubi_steinkek in "Jujutsu for busy devs"

dubi_steinkek — Tue, 22 Jul 2025 13:44:29 +0000

I don't think that's a fair characterization.

It's more that there isn't really a big difference between the workflow of

    # you're on
      staging area
    @ commit A
    # make some untracked changes and console logs you don't wanna commit
    git add -p && git commit # select only what you want

    # you're on
    @ empty commit 
    | commit A
    # make some local changes (which are tracked in @)
    jj commit -i # select only what you want

You're still "in charge what gets tracked" if you treat the last @ commit as your local playground, exactly the same as the staging area. The only difference is that you can use exactly the same tools to manipulate your "staging area" as other commits. The only difference being that you can manipulate your staging area with the same tools as any other commit.

New comment by dubi_steinkek in "Small Strings in Rust: smolstr vs. smartstring (2020)"

dubi_steinkek — Sun, 25 Aug 2024 06:30:34 +0000

It's possible but I would prefer to just pass &str at that point, leading to less monomorphizations and a simpler API

New comment by dubi_steinkek in "4B If Statements"

dubi_steinkek — Thu, 28 Dec 2023 21:10:35 +0000

This seems to be a somewhat common occurrence. When I was first learning programming with python I wanted multiple balls in a pong-like game, so after some googling I ended up writing something like `globals()["ball" + i]` until someone mentioned that arrays were a thing I could use for that.