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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. Mind you that there is a runtime overhead. If we look at access beyond on a slice's boundary: https://github.com/rust-lang/rust/blob/ea37e8091fe87ae0a7e20... This bounds check is what enables Rust code to fail with a panic vs continuing…
    comment by WirelessGigabit · 2024-02-05 · in New Linux glibc flaw lets attackers get root on major distros
  2. There was a similar bug in the past in Rust: Integer overflow causing a buffer overflow: https://github.com/rust-lang/rust/pull/54399/commits/8ac88d3... So the answer is: Not necessarily. I agree though that the memory safety features in…
    comment by uecker · 2024-02-04 · in New Linux glibc flaw lets attackers get root on major distros
  3. …of this kind of noise. It's not like heap overflows are impossible in other languages. Consult https://github.com/rust-lang/rust/issues/80894 or consult your preferred CVE database. Would love to know what language the author thinks glibc…
    comment by stonogo · 2024-02-01 · in "No way to prevent this" say users of only language where this regularly happens
  4. …pay for what you use” when the binaries contained half of H. P. Lovecraft's œuvre. See issue #13871 https://github.com/rust-lang/rust/issues/13871 I exaggerate, point is that we've come a long way and are still getting better. Different…
    comment by weinzierl · 2024-01-24 · in Making Rust binaries smaller by default
  5. …part of code [1] and somehow it is still in the std even though other algorithms now exist [2]. [1] https://github.com/rust-lang/rust/pull/24612 [2] https://github.com/rust-lang/rust/issues/52811
    comment by lifthrasiir · 2024-01-24 · in Making Rust binaries smaller by default
  6. …this by turning on the CPU feature directly, but that doesn't seem to affect codegen in this case. https://github.com/rust-lang/rust/issues/21690 It would be nice to get these intrinsics stabilized, at least. EDIT: oops you figured this…
    comment by steveklabnik · 2024-01-23 · in From slow to SIMD: A Go optimization story
  7. …to work: https://godbolt.org/z/G4Enf59Kb Edit: from what I can tell this is still an open issue??? https://github.com/rust-lang/rust/issues/21690 Edit: relevant SO post: https://stackoverflow.com/questions/76055058/why-cant-the-ru...…
    comment by camel-cdr · 2024-01-23 · in From slow to SIMD: A Go optimization story
  8. Here's the code performing the allocation reuse: https://github.com/rust-lang/rust/blob/25f8d01fd8bda339612d0... It's not supposed to waste more space than a regular `collect()` or `push()` would when growing the capacity exponentially.
    comment by pornel · 2024-01-19 · in Identifying Rust's collect:<Vec<_>>() memory leak footgun
  9. …documentation is slightly wrong, and no copies occur. Edit: I submitted a PR to clear up the docs: https://github.com/rust-lang/rust/pull/120110
    comment by invpt · 2024-01-18 · in Identifying Rust's collect:<Vec<_>>() memory leak footgun
  10. …it would be interesting to catch regressions before they land. Someone already filed this as a bug: https://github.com/rust-lang/rust/issues/120091
    comment by the_mitsuhiko · 2024-01-18 · in Identifying Rust's collect:<Vec<_>>() memory leak footgun
  11. …as a pure language perhaps not, but Rust as an ecosystem, has a standard UEFI alloc/dealloc system: https://github.com/rust-lang/rust/blob/master/library/std/sr... One could, of course, write their own allocator and heap tracking system as…
    comment by jeroenhd · 2024-01-17 · in PixieFail: Nine Vulnerabilities UEFI Implementations
  12. …o/g/devel/search?p=recentpostdate%2Fsti... Rust also has a basic standard library implementation now: https://github.com/rust-lang/rust/pull/105861
    comment by jeroenhd · 2024-01-17 · in PixieFail: Nine Vulnerabilities UEFI Implementations
  13. …I happened to be reading the Rust 1.75.0 release notes today and fell into this 50-tab rabbit hole: https://github.com/rust-lang/rust/pull/113053/
    comment by fl0ki · 2024-01-16 · in Std: Clamp generates less efficient assembly than std:min(max,std:max(min,v))
  14. Yup! https://github.com/rust-lang/rust/issues/12037
    comment by steveklabnik · 2024-01-16 · in A lowering strategy for control effects in Rust
  15. …got me down this rathole: https://users.rust-lang.org/t/fixing-rusts-webassembly-targe... and https://github.com/rust-lang/rust/issues/83788 I did find older alternative solutions that uses wasm32-unknown-emscripten, like…
    comment by FullyFunctional · 2024-01-16 · in Show HN: A minimal working Rust / SDL2 / WASM browser game
  16. Looks like rust is reasonably well working with cygwin/msys2 based on some github issues, https://github.com/rust-lang/rust/issues/79854 . Given that, I'd expect that this rust rewrite should work under them at least. Though it's obviously…
    comment by simcop2387 · 2024-01-16 · in Fishshell rewrite-it-in Rust progress: 100%
  17. See https://github.com/rust-lang/rust/issues/9795 and the linked PR that removed them.
    comment by steveklabnik · 2024-01-16 · in A lowering strategy for control effects in Rust
  18. …unsafe code to implement any non-trivial data structures That seems like a gross overstatement. https://github.com/rust-lang/rust/blob/master/library/std/sr... CTRL-F: unsafe Only one result, an optional utility function: "pub unsafe fn…
    comment by jbboehr · 2024-01-15 · in OpenD, a D language fork that is open to your contributions
  19. …standard library. According to bing.com chat, https://github.com/dotnet/runtime has 3.5M LOC, and https://github.com/rust-lang/rust has 6M LOC. The right panel of https://github.com/dotnet/runtime says 80% of the .NET runtime is written in…
    comment by Const-me · 2024-01-15 · in OpenD, a D language fork that is open to your contributions
  20. Both (line-buffered stdout, raw stderr) date to the initial implementation 10 years ago: https://github.com/rust-lang/rust/commit/94d71f8836b3bfac337... . The commit message mentions that stderr is no longer buffered (probably as a result…
    comment by loeg · 2024-01-10 · in Why is stdout faster than stderr?
  21. …As far as I know, there is currently no way to deny unsafe code in the output of proc macros. [0] https://github.com/rust-lang/rust/pull/52467
    comment by LegionMammal978 · 2024-01-09 · in totally_safe_transmute, Line-by-Line (2021)
  22. …absolute requirement that "newly added" functions cannot be stabilized. Off the top of my head: https://github.com/rust-lang/rust/issues/111544 `OsStr::as_encoded_bytes` was proposed in 2023-05, finished being implemented in 2023-07,…
    comment by Arnavion · 2023-12-29 · in You can't do that because I hate you
  23. …issues, etc. is a totally separate discussion from "Rust thinks four year old code is new" [0]: https://github.com/rust-lang/rust/commit/c784720f3a2d0b66142...
    comment by shepherdjerred · 2023-12-29 · in You can't do that because I hate you
  24. …the standard tracking issue template that lists any blockers, stabilization steps, etc. (Compare to https://github.com/rust-lang/rust/issues/119364 that happens to be the newest "Tracking issue" atm.) Also since the OP didn't intend for it…
    comment by Arnavion · 2023-12-28 · in You can't do that because I hate you
  25. …to being "newly added". Where did you get this from? The tracking issue says nothing of the sort: https://github.com/rust-lang/rust/issues/61695
    comment by shepherdjerred · 2023-12-28 · in You can't do that because I hate you
  26. …since that point, unfortunately, or if something similar could be applied to C++ somehow. [0]: https://github.com/rust-lang/rust/issues/47317#issuecomment-...
    comment by aw1621107 · 2023-12-19 · in C++ Should Be C++
  27. …https://www.jsdocs.io/package/ts-results-es#package-index [1] https://github.com/rust-lang/rust/issues/66249 [2] https://github.com/lune-climate/ts-results-es
    comment by jstasiak · 2023-12-19 · in Tsdocs.dev: Type docs for any JavaScript library
  28. …is supposed to be. It is explicitly not a spec[3], but the project is working on one[4]. 1: https://github.com/rust-lang/rust/issues?q=is%3Aopen+is%3Ais... 2: https://doc.rust-lang.org/reference/introduction.html 3:…
    comment by estebank · 2023-12-19 · in Progress toward a GCC-based Rust compiler
  29. …to verify for yourself without having the risk of being mislead by any person might tell you: https://github.com/rust-lang/rust/tree/master/compiler
    comment by estebank · 2023-12-18 · in Progress toward a GCC-based Rust compiler
  30. …in rustc. One example is generators[1] but there's a longer list in The Unstable Book.[2] [1] https://github.com/rust-lang/rust/issues/43122 [2] https://doc.rust-lang.org/stable/unstable-book/language-feat...
    comment by nequo · 2023-12-18 · in Progress toward a GCC-based Rust compiler
  31. …pairs of method names were considered better. [1] https://github.com/rust-lang/rfcs/pull/2757 [2] https://github.com/rust-lang/rust/issues/64260
    comment by lifthrasiir · 2023-12-16 · in Bug in my code from compiler optimization [video]
  32. ▲ 4
    Fuchsia is now a part of Rust CI
    story by dannyrosen · 2023-12-12 · 0 comments
  33. `rustc` used to use different terminology than the nomicom, but this is no longer the case: https://github.com/rust-lang/rust/pull/107339
    comment by Georgelemental · 2023-12-05 · in Common Rust Lifetime Misconceptions (2020)
  34. This is not true anymore: https://github.com/rust-lang/rust/pull/107339
    comment by Georgelemental · 2023-12-05 · in Common Rust Lifetime Misconceptions (2020)
  35. Here is the original GitHub issue on the question: https://github.com/rust-lang/rust/issues/15699 And an RFC by some people that felt frustrated by this arguably implementation-centric view that kind of lost steam:…
    comment by cwzwarich · 2023-12-05 · in Common Rust Lifetime Misconceptions (2020)
  36. …14 bugs https://gcc.gnu.org/bugzilla/buglist.cgi?quicksearch=Ada%20s... Rust: 243 (plus 830 closed) https://github.com/rust-lang/rust/issues?q=is%3Aissue+is%3Ao... Choose by yourself which seems safer
    comment by rurban · 2023-12-02 · in Is Ada safer than Rust?
  37. …is often far from perfect, it at least has been widely tested as a general-purpose allocator. [0] https://github.com/rust-lang/rust/issues/36963
    comment by kelnos · 2023-11-30 · in Rust std fs slower than Python? No, it's hardware
  38. …less clear to me: You can find them at the original motivation for removing jemalloc, 7 years ago: https://github.com/rust-lang/rust/issues/36963 Also it's not "glibc's allocator", it's the system allocator. If you're unhappy with glibc's,…
    comment by masklinn · 2023-11-29 · in Rust std fs slower than Python? No, it's hardware
  39. …feel free to test it out and open an issue, but maybe take a gander at the previous attempt: https://github.com/rust-lang/rust/pull/103944 which died for the exact same reason the the one before that (…
    comment by masklinn · 2023-11-29 · in Rust std fs slower than Python? No, it's hardware
  40. …function as inline. Essentially rustc converted it from an intrinsic to a regular function call. https://github.com/rust-lang/rust/issues/107617#issuecomment...
    comment by celeritascelery · 2023-11-28 · in Designing a SIMD Algorithm from Scratch
  41. …the old search). It's as simple as appending the repo URL, starting from github.com: e.g. sourcegraph.com/github.com/rust-lang/rust/ (you can try searching for unit on this repo)
    comment by bilkow · 2023-11-27 · in GitHub: Can no longer search code without being logged in
  42. …smart pointers defined outside of std. Box patterns are likely to be superseded by one of these: https://github.com/rust-lang/rust/issues/42640 https://github.com/rust-lang/rust/issues/87121
    comment by ForkMeOnTinder · 2023-11-23 · in Enums in Rust – and why they feel better
  43. …because those foreign functions may start making unsynchronised calls to getenv/setenv. [1] https://github.com/rust-lang/rust/blob/master/library/std/sr... [2] https://github.com/rust-lang/rust/blob/master/library/std/sr...
    comment by Measter · 2023-11-20 · in Setenv Is Not Thread Safe and C Doesn't Want to Fix It
  44. It was orginally me ( https://github.com/rust-lang/rust/pull/65875 )
    comment by Matthias247 · 2023-11-10 · in A four year plan for async Rust
  45. …common types and patterns it's probably easier to find the information you're looking for, e.g.: https://github.com/rust-lang/rust/issues/46213 In general Rust chases a "zero cost abstraction" ethos, so a lot of the type system niceties…
    comment by inferiorhuman · 2023-11-10 · in Why Rust in Production?
  46. Here is one I know of: https://github.com/rust-lang/rust/pull/90346 I believe this is one as well: https://github.com/rust-lang/rust/pull/113535
    comment by steveklabnik · 2023-11-08 · in Officially Qualified – Ferrocene
  47. …you don't understand are bugs and I'd encourage you all to file a ticket when encountering any: https://github.com/rust-lang/rust/issues/new?assignees=&labe...
    comment by estebank · 2023-11-07 · in Why Golang instead of Rust to develop the Krater desktop app
  48. As far as I know, the proposal to add one was determined to need an RFC: https://github.com/rust-lang/rust/pull/65875
    comment by steveklabnik · 2023-11-07 · in A four year plan for async Rust
  49. …for UBSAN, ASAN, TSAN and MSAN sanitizers. Unfortunately it has been WIP for almost 7 years: https://github.com/rust-lang/rust/issues/39699
    comment by menaerus · 2023-11-02 · in Bjarne Stroustrup's Plan for Bringing Safety to C++
  50. …which wasn’t very useful. I wasn’t happy with this, and so proposed turning into a macro < https://github.com/rust-lang/rust/issues/8991 >, which fixed both of those problems. The import thing alone could have been resolved by adding it to…
    comment by chrismorgan · 2023-10-27 · in Things I like about Gleam's Syntax