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Empowering everyone to build reliable and efficient software.

1,825 mentions on Hacker News by 819 people: 158 stories, 1,667 comments · first 2012-01-20 · latest 2026-10-22

Mentions per year 1,825 mentions · busiest year 2023 (167)
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  1. …available in nightly[2]. [1]: https://rust-lang.github.io/rfcs/3107-derive-enum-default.ht... [2]: https://github.com/rust-lang/rust/pull/86735
    comment by estebank · 2021-08-10 · in When zero cost abstractions aren't zero cost
  2. …don't know if there is any plans for exposing that trait, but it would be a nice thing to see. [0]: https://github.com/rust-lang/rust/blob/master/library/alloc/... [1]: https://github.com/rust-lang/rust/blob/master/library/alloc/...
    comment by erk__ · 2021-08-10 · in When zero cost abstractions aren't zero cost
  3. …by a memset when compiled. godbolt: https://godbolt.org/z/8bM7zz4E7 the specific specialization: https://github.com/rust-lang/rust/blob/master/library/alloc/...
    comment by erk__ · 2021-08-10 · in When zero cost abstractions aren't zero cost
  4. …of output, whereas other languages like Python tend to buffer larger blocks before flushing. [2] https://github.com/rust-lang/rust/issues/60673
    comment by jlledo · 2021-08-09 · in How to write slow Rust code – Part 2
  5. …understand the real problem and apply the real fix yourself. I would appreciate bug reports at https://github.com/rust-lang/rust/issues/ when encountering these kind of situations. If there's something worse than missing suggestions is…
    comment by estebank · 2021-07-31 · in Do Developers Read Compiler Error Messages? [pdf]
  6. Relevant PR (merged): https://github.com/rust-lang/rust/pull/82834
    comment by juancampa · 2021-07-29 · in Rust 1.54.0
  7. …have to contend with the fact that you can't even set a debugger checkpoint where an error occurs: https://github.com/rust-lang/rust/issues/54144 Obviously people wouldn't be asking for that if the type and borrow checkers caught all the…
    comment by oalae5niMiel7qu · 2021-07-27 · in What's bad about Julia?
  8. https://github.com/rust-lang/rust/issues/44650 (Nothing to do with unicode. I haven't got a Windows machine to test, but I assume WinMain will behave the same as main wrt quotes and spaces.) (Note that Rust doesn't use CLTAW any more; it…
    comment by Arnavion · 2021-07-25 · in Windows Command-Line Obfuscation
  9. …mainline rustc [2], supports building for MIPS. [1] https://github.com/antoyo/rustc_codegen_gcc [2] https://github.com/rust-lang/rust/pull/87260 Can you give it a try?
    comment by geofft · 2021-07-24 · in Rust for Linux redux
  10. …(albeit calling `open64` rather than `fopen`), you can see it in the source for the stdlib here https://github.com/rust-lang/rust/blob/master/library/std/sr...
    comment by clappski · 2021-07-24 · in Modern C++ for C Programmers (2018)
  11. …are already feature gated for OOM handling so might not be implemented for String. [0] https://github.com/rust-lang/rust/blob/master/library/alloc/... [1] Note that the compiler knows about it to provide better diagnostics to the user, but…
    comment by Measter · 2021-07-20 · in A GPIO Driver in Rust
  12. …goto cleanup, and break/continue let you emulate any structured uses of goto. (I live in hope that https://github.com/rust-lang/rust/issues/48594 will one day land, so you can use break to skip the remainder of a labelled block, no loop…
    comment by chrismorgan · 2021-07-17 · in Linux: Using goto In Kernel Code (2003)
  13. …most famous bug in the standard library exposing an unsound construction is the “leakpocalypse”: https://github.com/rust-lang/rust/issues/24292
    comment by littlestymaar · 2021-07-17 · in Is Rust Used Safely by Software Developers?
  14. …they do happen. For fun, here's an example of the Rust stdlib itself working around such things: https://github.com/rust-lang/rust/blob/74ef0c3e404cc72c08b2d...
    comment by kibwen · 2021-07-16 · in Is Rust Used Safely by Software Developers?
  15. …is where it's handy to have a decent standard library instead of learning all of this the hard way: https://github.com/rust-lang/rust/blob/b9197978a90be6f757074...
    comment by pornel · 2021-07-15 · in Overflowing timeout
  16. …are only incorrect in combination, like global value numbering causing miscompilations[1][2])? [1]: https://github.com/rust-lang/rust/issues/45839 [2]: https://bugs.llvm.org/show_bug.cgi?id=35229 EDIT: > the critical detail about…
    comment by nyanpasu64 · 2021-07-12 · in Updating the Go Memory Model
  17. …ahead-of-time compilation), as an alternative to LLVM for the standard Rust compiler ("rustc" aka https://github.com/rust-lang/rust ). This allows reusing all the logic inside the Rust compiler for compiling code, checking types and…
    comment by geofft · 2021-07-08 · in Rust GCC back end was officially accepted into the compiler
  18. …exhaustiveness checks has extensive explanations on how it works and what it was inspired by. https://github.com/rust-lang/rust/blob/master/compiler/rustc...
    comment by estebank · 2021-07-08 · in Compiling Rust is NP-hard
  19. https://github.com/rust-lang/rust/pull/84266 We have been excising this with a new opt-out mechanism so there are no allocations behind your back but the same abstractions are notheless used as the rest of the Rust ecosystem.
    comment by Ericson2314 · 2021-07-06 · in Linux Rust Support
  20. …hopeful that this effort could improve the situation for everyone. My small contribution to this, https://github.com/rust-lang/rust/pull/84266 , is supposed to be just that!
    comment by Ericson2314 · 2021-07-06 · in Linux Rust Support
  21. In what way? Rust seems to be proving itself as a reliable mainstay in systems development https://github.com/rust-lang/rust The git repo has over 150,000 commits, 3,000 contributors, and 9 years of release history. The last 6 years of…
    comment by eejjjj82 · 2021-07-06 · in Linux Rust Support
  22. …in a sane pattern such as MVU. FWIW, I have been working towards this for the past year. [1] https://github.com/rust-lang/rust/blob/master/src/librustdoc...
    comment by ironmagma · 2021-06-30 · in Apple's DocC is excellent, but unusable for open source projects
  23. Implemented in https://github.com/rust-lang/rust/pull/37429 ; his website seems to be https://ahicks.io/
    comment by kzrdude · 2021-06-28 · in Deserializing Binary Data Files in Rust
  24. Ok, teach me about https://github.com/rust-lang/rust/issues/82457 then. Unchecked alloca() calls have a pretty bad reputation with non-rust folks. But this is the preferred allocation scheme in Rust. I'm sure our understanding of memory…
    comment by rurban · 2021-06-27 · in NASA can't figure out what's causing computer issues on the Hubble telescope
  25. Then maybe lookup "stack overflow" in rust, and you will be delighted. https://github.com/rust-lang/rust/issues?q=is%3Aissue+is%3Ao... 583 closed, 156 open. That much to "memory safety" in rust.
    comment by rurban · 2021-06-24 · in NASA can't figure out what's causing computer issues on the Hubble telescope
  26. …would allow for async fns directly in traits, but that is probably a long way off [2]. [0]: https://github.com/rust-lang/rust/issues/63063 [1]: https://github.com/rust-lang/rust/issues/44265 [2]: http://smallcultfollowing.com/babysteps/blog…
    comment by ibraheemdev · 2021-06-10 · in Rocket v0.5 Release Candidate
  27. …// string.len() doesn't work in GDB Debuggin rust still involves a lot of println! or debug! https://github.com/rust-lang/rust/issues/33014
    comment by Popegaf · 2021-05-31 · in GCC Rust Monthly Report #6 May 2021
  28. …equivalent to upper_bound(), and it got improved recently. The PR of the improvement: https://github.com/rust-lang/rust/pull/74024 Polkadot's postmortem: https://polkadot.network/a-polkadot-postmortem-24-05-2021/
    comment by xnhbx · 2021-05-30 · in Rust's improvement on slice.binary_search_by() caused OOM on Polkadot
  29. …N times to initialize an array. This basically brings the array-init functionality into std. https://github.com/rust-lang/rust/pull/75644
    comment by CryZe · 2021-05-24 · in Methods for Array Initialization in Rust (2018)
  30. It was stabilized in 2019 by accident: https://twitter.com/m_ou_se/status/1396827152859942921 https://github.com/rust-lang/rust/pull/79270
    comment by m-ou-se · 2021-05-24 · in Methods for Array Initialization in Rust (2018)
  31. …implementation is still limited to N ≤ 32, for technical reasons that haven’t yet been overcome. ( https://github.com/rust-lang/rust/pull/74254 is relevant info that I’ve found on a quick search—I think the trouble is that [T; N] normally…
    comment by chrismorgan · 2021-05-24 · in Methods for Array Initialization in Rust (2018)
  32. …[1] and rustc's cg_clif [2]. 1: https://github.com/bytecodealliance/wasmtime/tree/main/crane... 2: https://github.com/rust-lang/rust/pull/77975
    comment by hexane360 · 2021-05-24 · in Rustc_codegen_GCC can now run libcore’s tests and pass most of them
  33. …today (the original language when the team started to work on it was a bit different to 1.0). https://github.com/rust-lang/rust/graphs/contributors?from=2... The work since 1.0 can be classified as a massive refinement project, which also…
    comment by est31 · 2021-05-22 · in Rust heads into the kernel?
  34. …a similar interface that existed in std, until it was found to be unsound, is totally fascinating: https://github.com/rust-lang/rust/issues/24292 . (Prior to that, std::mem::forget was marked unsafe!) Another detail that's worth clarifying…
    comment by oconnor663 · 2021-05-20 · in Things you can’t do in Rust (and what to do instead)
  35. …cores to the fullest? I don't use Rust, but a quick search returned for example this issue: https://github.com/rust-lang/rust/issues/64913
    comment by NicoJuicy · 2021-05-17 · in How M1 Macs feel faster than Intel models: it’s about QoS
  36. I'd like to add the "Bastion of the Turbofish", which is my personal favorite: https://github.com/rust-lang/rust/blob/master/src/test/ui/ba...
    comment by Zababa · 2021-05-14 · in Rust Weird Expressions
  37. …comment is present, and the rust compiler defaults to the 2015 edition if none was specified. [0]: https://github.com/rust-lang/rust/blob/69b352ef7749825abde2d... [1]: https://github.com/rust-lang/rust/blob/69b352ef7749825abde2d...
    comment by est31 · 2021-05-14 · in Rust Weird Expressions
  38. Yeah. I'd assume a 2018 specific one would show up below https://github.com/rust-lang/rust/tree/master/src/test/ui/ru... if needed.
    comment by phaylon · 2021-05-14 · in Rust Weird Expressions
  39. …The "C-tracking-issue" issues are ones that are open and tracking an RFC that's in implementation, https://github.com/rust-lang/rust/issues?q=is%3Aissue+is%3Ao... ("C" is short for "Category". These prefixes are... well the original ones…
    comment by steveklabnik · 2021-05-11 · in The Plan for the Rust 2021 Edition
  40. …as, exactly as you say, basically nobody else has forged through these paths in LLVM before. [0]: https://github.com/rust-lang/rust/pull/82834 [1]: https://github.com/rust-lang/rust/issues/84958 [2]: https://stackoverflow.com/a/57259339
    comment by nathankleyn · 2021-05-08 · in ABI Mistakes
  41. …performance benefits of adding a push-model complement to Rust's usual pull-model Iterator trait: https://github.com/rust-lang/rust/pull/42782#issuecomment-30... ) But, you can get the same natural-looking output from the pull model if you…
    comment by Rusky · 2021-05-01 · in Query Engines: Push vs. Pull
  42. There's an RFC to add the minimum rust version supported. It was merged! The tracking issue is here: https://github.com/rust-lang/rust/issues/65262
    comment by swsieber · 2021-04-29 · in A brief history of Rust at Facebook
  43. Relying to myself to mention another thing: https://github.com/rust-lang/rust/issues/64796 is adding support for a #[cfg(version(x.y))] tag that will allow crates to more easily provide additional feature when using newer compiler, while…
    comment by ogoffart · 2021-04-29 · in A brief history of Rust at Facebook
  44. …of date compared to what most of the ecosystem expect. However there is hope for a better future: https://github.com/rust-lang/rust/issues/65262 will allow crates to specify a minimum supported rust version (MSRV), this way, we can imagine…
    comment by ogoffart · 2021-04-29 · in A brief history of Rust at Facebook
  45. …for creating maintainable large-scale software. Here's the original elevator pitch from 2010: https://github.com/rust-lang/rust/blob/d6b7c96c3eb29b9244ece... Note the text about "programming in the large".
    comment by brson · 2021-04-22 · in Green vs. Brown Programming Languages
  46. …even account for someone writing `-> Trait` and suggest all the appropriate changes. I just filed https://github.com/rust-lang/rust/issues/84346 to account for some cases brought up and I completely agree with your last sentence. It is…
    comment by estebank · 2021-04-19 · in What's in the Box?
  47. …this case in particular where the result would be !Sized and also suggest Boxing. Edit: filed https://github.com/rust-lang/rust/issues/84346 It is also somehow unfortunate that `impl Trait` in locals isn't yet in stable, but once it is it…
    comment by estebank · 2021-04-19 · in What's in the Box?
  48. I think because split-debuginfo is recently stabilized (Nov 2020). https://github.com/rust-lang/rust/pull/79570 Maybe the default will be switched in the future.
    comment by est31 · 2021-04-18 · in Reducing Rust Incremental Compilation Times on macOS
  49. The `A-LLVM` issue label is probably a good starting point. https://github.com/rust-lang/rust/labels/A-LLVM
    comment by mrec · 2021-04-16 · in LLVM 12
  50. …information. This affects Rust, for instance, and might net 0-5% better run-time performance: https://github.com/rust-lang/rust/issues/54878#issuecomment-...
    comment by myrmidon · 2021-04-16 · in LLVM 12