Zig’s io.threaded is neat

(matklad.github.io)

47 points | by chilipepperhott 16 hours ago

3 comments

  • two_handfuls 15 hours ago
    Oh man this finishes too early, I would want to read more!
  • phplovesong 1 hour ago
    I know syntax does not REALLY matter, but Zig is just kind of subpar syntax wise. Its really verbose and picked weirdly from what already exists. Zig code is usually hard to read because it really noicy, and has weird things not existing in other languages without merit.
    • pzittlau 36 minutes ago
      I don't think that it's really subpar. It's just unusual compared to others. In and of itself it's very consistent. For instance there's `|capture|` for capturing all sort of things(errors, optionals, ...) in nearly all control flow constructs. `blk:` for naming blocks, `if`s, `switch`, and so on. Have a look at this blog post: https://matklad.github.io/2025/08/09/zigs-lovely-syntax.html
      • ulbu 22 minutes ago
        |capture| hides an inconsistency that bugs me – everywhere else, assignment to a variable flows leftwards. |capture| is an unnatural rightwards assignment.

        in general, I like zig syntax, but i find that it had very little regard to how the eye moves on the page. it’s jarring at times.

      • phplovesong 28 minutes ago
        I saw that article previously. Nearly all of the syntax seem to be in-house with little benefit. All the examples could just use some modern c-like thing.

        Zig has benefits, like comptime, no hidden control flow, memory mngmt, cross compilation etc. But its syntax is just a mouthfull of wats, whys and wtfs.

        I can forsee a compile to Zig languge popping up sometime soon.

    • nromiun 6 minutes ago
      Of course syntax matters in any programming language. That is like saying the alphabet and grammar does not really matter in English.
  • zuzululu 1 hour ago
    I'm shipping in Rust but any reason to do so in Zig ? What does it offer over Rust ? Something tangible benefit to end user or developer using ai assisted development ?
    • rahen 46 minutes ago
      Use Rust if you're not writing code yourself.

      The borrow checker will catch all kinds of bugs that AI-generated code will happily compile in Zig but will blow up as UB at runtime.

      Zig's value prop is different and closer to a modern C: it fits in your head and it maps fairly closely to assembly. There is no hidden control flow or hidden allocations, so you can tweak performance at a very low level. You're the pilot, not the compiler.

      Rust trades the low-level clarity for compiler-enforced safety. If you're not a code artisan or don't care about being one, then please use Rust.

      • solatic 10 minutes ago
        > The borrow checker will catch all kinds of bugs that AI-generated code will happily compile in Zig but will blow up as UB at runtime.

        This has not been my experience; Claude does a great job of writing unit tests for the Zig code, and combined with Zig's fuzzing features and a Python-based integration testing suite, I have avoided hitting runtime UB so far. In exchange, I get much faster compile times, which are important for the agentic development loop.

      • eptcyka 17 minutes ago
        > You're the pilot, not the compiler.

        This to me reads like an LLMism.

    • hiccuphippo 27 minutes ago
      Zig lets you be very explicit about what you want. Zig's hello world takes 3 or 4 lines where other languages take 1. That is how much other languages make decisions for you. Some people care to make those decisions themselves.
      • applfanboysbgon 20 minutes ago
        This is the weirdest basis for comparing a language I've ever seen. Zig is one line as well, `std.debug.print("Hello, world!\n", .{});`, unless you're counting defining main and its brackets as 4 lines, in which case... Rust has that too, Java is 7 lines and C# is 8 lines to import System library and define the Program class as well if you're not using top-level statements / implicit usings.
    • applfanboysbgon 34 minutes ago
      I often use LLMs to build and modify open-source tools for personal use and Rust's compile times are disgusting, eg. Codex CLI taking over 15 minutes to recompile on my fairly high-end machine. Zig's incremental compilation optimizations are amazing, giving near-instant recompiles measured in ms instead of minutes. I would certainly classify four orders of magnitude faster compilation as a tangible benefit even if you're not writing the code by hand.