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Merged
merged 7 commits into from
Apr 11, 2018
Merged

Add specialized predicates #18

merged 7 commits into from
Apr 11, 2018

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epage
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@epage epage commented Apr 1, 2018

  • All external crates are optional
  • Specialized functions are in a child module with a name for the type.
    • Names would be verbose anyways
    • This provides the user the opportunity to shorten it if they desire.

Particular notes

@epage epage requested a review from nastevens April 1, 2018 04:37
@epage
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epage commented Apr 1, 2018

I think the main remaining predicates that assert_cli will want are

  • Creating a predicate from a file
  • A dir-diff predicate

After that, I'm going to explore ergonomics

  • EqPredicate stores T and its eval takes a &T. But what about Vec/slice, String/str, and PathBuf/path?
  • Adapters from one Item type to another, like wrapping a predicate on str with a predicate on [u8] that will do a from_utf8 on the variable before passing it down.

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There are some things I'd like to see addressed before merging, but this is seriously good stuff.

@@ -0,0 +1,101 @@
use float_cmp::ApproxEq;
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New files need a copyright notice - I recommend the following:

// Copyright (c) 2018 The predicates-rs Project Developers.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

I will also plan to go back and modify the notices that list me as the copyright holder and replace with the statement above.

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I personally rely on the project-wide license rather than per file.

If you prefer pre-file, we should make sure to get a CONTRIBUTING that mentions that.

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The recommendation of the FSF (via the GPLv3) is to include the license statement in all source files, and having dealt with way more FOSS licensing BS than I care to think about, I just feel better having the license in all files to avoid any confusion.

I've opened #22 and #23 to track the other changes needed so the whole project is licensed to the "predicates-rs Project Developers" and to make sure we get a CONTRIBUTING document. For this PR I think just adding the statement above is sufficient.


/// Creates a new `Predicate` that ensures the path doesn't exist.
///
///
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Extra newline here

};
metadata
.map(|m| self.ft.eval(&m.file_type()))
.unwrap_or_default()
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Would be more readable with .unwrap_or(false) - it took me three clicks to recognize that this is the default -> for type boolean -> which means false because false is the default for boolean.

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In cases like this, I'm on the fence and I just happened to lean the other way :)

///
/// # Examples
///
/// ```ignore
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Since all the tests should be false, wouldn't it be okay to un-ignore this doctest?

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I guess it still has some value even if it isn't actually testing true for anything.

/// - `"\n" for line-level.
///
/// Default: `"\n"`
pub fn split<S>(mut self, split: S) -> Self
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Instead of forcing a potential allocation, this could use the copy-on-write Cow type

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I'm always on the fence on allocation vs indirection (Cow). I'll go ahead and switch it to Cow.

/// let predicate_fn = str::diff("Hello World");
/// assert_eq!(true, predicate_fn.eval("Hello World"));
/// ```
pub fn diff<S>(orig: S) -> DifferencePredicate
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The behavior of this predicate seems backwards to me based on the name. diff to me sounds like the predicate should be satisfied (return true) when the strings are different. But the behavior seems to be that the result is true when the strings are similar. Is there a better name that could be used for this - maybe like distance?

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While this has features for edit-distance, as a user, my real care about is showing the diff between the strings once #7 is available and I was going for a name that communicated that.

I can see how the name implies the opposite meaning. What if instead I reversed the behavior of eval instead? The downside is that almost everyone will now need to not it.

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Would it make sense to create two different predicates that handle the two different cases (looking to see if strings differ, looking to see if strings are the same)? The underlying type could easily be shared between two facades with clear naming.

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Eh, sure. Updated.

}
}

/// Creates a new `Predicate` that diffs two strings.
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Should actually be something like "applies a regular expression match to a string"

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EqPredicate stores T and its eval takes a &T. But what about Vec/slice, String/str, and PathBuf/path?

The Predicate trait could be changed to accept Borrow<T> instead of &T. Since Borrow<T> is implemented for &T, this probably won't even end up being a breaking change, and would allow things using String and Vec to be way more ergonomic.

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epage commented Apr 2, 2018

Just force-pushed a fix for everything except diff.

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Looks like you picked up some stray commits (8c292d1 and 8afa6ae) during the last rebase - those commits already exist on master.

epage added 6 commits April 4, 2018 06:56
This will be more helpful when assert-rs#7 is implemented.

Fixes assert-rs#9
This is a short term API.  Different issues we'll need to consider when
evolving this include:
- Easy to create predicate
- The ability to customize the regex (e.g. case sensitivity, multi-line,
  ignoring whityespace).
  - It looks like the flags can be enabled with `(?flag)` inside the
    regex. Good enough?
- How error handling should work. Re-export? A single error type for
  the whole crate?

This is a part of assert-rs#12
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epage commented Apr 4, 2018

Fixed

Can't believe I forgot to rebase master after rebase -i.

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epage commented Apr 6, 2018

FYI This should now be ready to go

(I would have merged it already but you've set up the repo to require approval from a reviewer and I've wanted to respect that and not just disable it)

nastevens
nastevens previously approved these changes Apr 11, 2018
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Found some typos - I'll leave it up to you if you want to fix before merging or just tack them onto a different PR. I don't want to hold you up more than I already have.


//! Float Predicates
//!
//! This module contains predicates specifiuc to string handling.
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typo: "specifiuc"

impl IsClosePredicate {
/// Set the amount of error allowed.
///
/// Values `1`-`5` should work in most cases. Some times more control is needed and you will
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typo: "Some times" -> "Sometimes"


//! Path Predicates
//!
//! This module contains predicates specifiuc to the file system.
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typo: specifiuc


//! String Predicates
//!
//! This module contains predicates specifiuc to string handling.
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Another instance of this specifiuc copy-paste ;-)

@epage epage merged commit 083fe5d into assert-rs:master Apr 11, 2018
@epage epage deleted the pred branch April 11, 2018 14:38
epage pushed a commit to epage/predicates-rs that referenced this pull request Jun 4, 2025
This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [STABLE](https://redirect.github.com/rust-lang/rust) | minor | `1.76`
-> `1.87` |

---

### Release Notes

<details>
<summary>rust-lang/rust (STABLE)</summary>

###
[`v1.87`](https://redirect.github.com/rust-lang/rust/blob/HEAD/RELEASES.md#Version-1870-2025-05-15)

[Compare
Source](https://redirect.github.com/rust-lang/rust/compare/1.86.0...1.87.0)

\==========================

<a id="1.87.0-Language"></a>

## Language

- [Stabilize `asm_goto`
feature](https://redirect.github.com/rust-lang/rust/pull/133870)
- [Allow parsing open beginning ranges (`..EXPR`) after unary operators
`!`, `-`, and
`*`](https://redirect.github.com/rust-lang/rust/pull/134900).
- [Don't require method impls for methods with `Self: Sized` bounds in
`impl`s for unsized
types](https://redirect.github.com/rust-lang/rust/pull/135480)
- [Stabilize `feature(precise_capturing_in_traits)` allowing `use<...>`
bounds on return position `impl Trait` in
`trait`s](https://redirect.github.com/rust-lang/rust/pull/138128)

<a id="1.87.0-Compiler"></a>

## Compiler

- [x86: make SSE2 required for i686 targets and use it to pass SIMD
types](https://redirect.github.com/rust-lang/rust/pull/135408)

<a id="1.87.0-Platform-Support"></a>

## Platform Support

- [Remove `i586-pc-windows-msvc`
target](https://redirect.github.com/rust-lang/rust/pull/137957)

Refer to Rust's [platform support page][platform-support-doc]
for more information on Rust's tiered platform support.

[platform-support-doc]:
https://doc.rust-lang.org/rustc/platform-support.html

<a id="1.87.0-Libraries"></a>

## Libraries

- [Stabilize the anonymous pipe
API](https://redirect.github.com/rust-lang/rust/issues/127154)
- [Add support for unbounded left/right shift
operations](https://redirect.github.com/rust-lang/rust/issues/129375)
- [Print pointer metadata in `Debug` impl of raw
pointers](https://redirect.github.com/rust-lang/rust/pull/135080)
- [`Vec::with_capacity` guarantees it allocates with the amount
requested, even if `Vec::capacity` returns a different
number.](https://redirect.github.com/rust-lang/rust/pull/135933)
- Most `std::arch` intrinsics which don't take pointer arguments can now
be called from safe code if the caller has the appropriate target
features already enabled
([https://github.com/rust-lang/stdarch/pull/1714](https://redirect.github.com/rust-lang/stdarch/pull/1714),
[https://github.com/rust-lang/stdarch/pull/1716](https://redirect.github.com/rust-lang/stdarch/pull/1716),
[https://github.com/rust-lang/stdarch/pull/1717](https://redirect.github.com/rust-lang/stdarch/pull/1717))
- [Undeprecate
`env::home_dir`](https://redirect.github.com/rust-lang/rust/pull/137327)
- [Denote `ControlFlow` as
`#[must_use]`](https://redirect.github.com/rust-lang/rust/pull/137449)
- [Macros such as `assert_eq!` and `vec!` now support `const {...}`
expressions](https://redirect.github.com/rust-lang/rust/pull/138162)

<a id="1.87.0-Stabilized-APIs"></a>

## Stabilized APIs

-
[`Vec::extract_if`](https://doc.rust-lang.org/stable/std/vec/struct.Vec.html#method.extract_if)
-
[`vec::ExtractIf`](https://doc.rust-lang.org/stable/std/vec/struct.ExtractIf.html)
-
[`LinkedList::extract_if`](https://doc.rust-lang.org/stable/std/collections/struct.LinkedList.html#method.extract_if)
-
[`linked_list::ExtractIf`](https://doc.rust-lang.org/stable/std/collections/linked_list/struct.ExtractIf.html)
-
[`<[T]>::split_off`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.split_off)
-
[`<[T]>::split_off_mut`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.split_off_mut)
-
[`<[T]>::split_off_first`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.split_off_first)
-
[`<[T]>::split_off_first_mut`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.split_off_first_mut)
-
[`<[T]>::split_off_last`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.split_off_last)
-
[`<[T]>::split_off_last_mut`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.split_off_last_mut)
-
[`String::extend_from_within`](https://doc.rust-lang.org/stable/alloc/string/struct.String.html#method.extend_from_within)
-
[`os_str::Display`](https://doc.rust-lang.org/stable/std/ffi/os_str/struct.Display.html)
-
[`OsString::display`](https://doc.rust-lang.org/stable/std/ffi/struct.OsString.html#method.display)
-
[`OsStr::display`](https://doc.rust-lang.org/stable/std/ffi/struct.OsStr.html#method.display)
-   [`io::pipe`](https://doc.rust-lang.org/stable/std/io/fn.pipe.html)
-
[`io::PipeReader`](https://doc.rust-lang.org/stable/std/io/struct.PipeReader.html)
-
[`io::PipeWriter`](https://doc.rust-lang.org/stable/std/io/struct.PipeWriter.html)
- [`impl From<PipeReader> for
OwnedHandle`](https://doc.rust-lang.org/stable/std/os/windows/io/struct.OwnedHandle.html#impl-From%3CPipeReader%3E-for-OwnedHandle)
- [`impl From<PipeWriter> for
OwnedHandle`](https://doc.rust-lang.org/stable/std/os/windows/io/struct.OwnedHandle.html#impl-From%3CPipeWriter%3E-for-OwnedHandle)
- [`impl From<PipeReader> for
Stdio`](https://doc.rust-lang.org/stable/std/process/struct.Stdio.html)
- [`impl From<PipeWriter> for
Stdio`](https://doc.rust-lang.org/stable/std/process/struct.Stdio.html#impl-From%3CPipeWriter%3E-for-Stdio)
- [`impl From<PipeReader> for
OwnedFd`](https://doc.rust-lang.org/stable/std/os/fd/struct.OwnedFd.html#impl-From%3CPipeReader%3E-for-OwnedFd)
- [`impl From<PipeWriter> for
OwnedFd`](https://doc.rust-lang.org/stable/std/os/fd/struct.OwnedFd.html#impl-From%3CPipeWriter%3E-for-OwnedFd)
-
[`Box<MaybeUninit<T>>::write`](https://doc.rust-lang.org/stable/std/boxed/struct.Box.html#method.write)
- [`impl TryFrom<Vec<u8>> for
String`](https://doc.rust-lang.org/stable/std/string/struct.String.html#impl-TryFrom%3CVec%3Cu8%3E%3E-for-String)
- [`<*const
T>::offset_from_unsigned`](https://doc.rust-lang.org/stable/std/primitive.pointer.html#method.offset_from_unsigned)
- [`<*const
T>::byte_offset_from_unsigned`](https://doc.rust-lang.org/stable/std/primitive.pointer.html#method.byte_offset_from_unsigned)
- [`<*mut
T>::offset_from_unsigned`](https://doc.rust-lang.org/stable/std/primitive.pointer.html#method.offset_from_unsigned-1)
- [`<*mut
T>::byte_offset_from_unsigned`](https://doc.rust-lang.org/stable/std/primitive.pointer.html#method.byte_offset_from_unsigned-1)
-
[`NonNull::offset_from_unsigned`](https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.offset_from_unsigned)
-
[`NonNull::byte_offset_from_unsigned`](https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.byte_offset_from_unsigned)
-
[`<uN>::cast_signed`](https://doc.rust-lang.org/stable/std/primitive.usize.html#method.cast_signed)
-
[`NonZero::<uN>::cast_signed`](https://doc.rust-lang.org/stable/std/num/struct.NonZero.html#method.cast_signed-5).
-
[`<iN>::cast_unsigned`](https://doc.rust-lang.org/stable/std/primitive.isize.html#method.cast_unsigned).
-
[`NonZero::<iN>::cast_unsigned`](https://doc.rust-lang.org/stable/std/num/struct.NonZero.html#method.cast_unsigned-5).
-
[`<uN>::is_multiple_of`](https://doc.rust-lang.org/stable/std/primitive.usize.html#method.is_multiple_of)
-
[`<uN>::unbounded_shl`](https://doc.rust-lang.org/stable/std/primitive.usize.html#method.unbounded_shl)
-
[`<uN>::unbounded_shr`](https://doc.rust-lang.org/stable/std/primitive.usize.html#method.unbounded_shr)
-
[`<iN>::unbounded_shl`](https://doc.rust-lang.org/stable/std/primitive.isize.html#method.unbounded_shl)
-
[`<iN>::unbounded_shr`](https://doc.rust-lang.org/stable/std/primitive.isize.html#method.unbounded_shr)
-
[`<iN>::midpoint`](https://doc.rust-lang.org/stable/std/primitive.isize.html#method.midpoint)
-
[`<str>::from_utf8`](https://doc.rust-lang.org/stable/std/primitive.str.html#method.from_utf8)
-
[`<str>::from_utf8_mut`](https://doc.rust-lang.org/stable/std/primitive.str.html#method.from_utf8\_mut)
-
[`<str>::from_utf8_unchecked`](https://doc.rust-lang.org/stable/std/primitive.str.html#method.from_utf8\_unchecked)
-
[`<str>::from_utf8_unchecked_mut`](https://doc.rust-lang.org/stable/std/primitive.str.html#method.from_utf8\_unchecked_mut)

These previously stable APIs are now stable in const contexts:

-
[`core::str::from_utf8_mut`](https://doc.rust-lang.org/stable/std/str/fn.from_utf8\_mut.html)
-
[`<[T]>::copy_from_slice`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.copy_from_slice)
-
[`SocketAddr::set_ip`](https://doc.rust-lang.org/stable/std/net/enum.SocketAddr.html#method.set_ip)
-
[`SocketAddr::set_port`](https://doc.rust-lang.org/stable/std/net/enum.SocketAddr.html#method.set_port),
-
[`SocketAddrV4::set_ip`](https://doc.rust-lang.org/stable/std/net/struct.SocketAddrV4.html#method.set_ip)
-
[`SocketAddrV4::set_port`](https://doc.rust-lang.org/stable/std/net/struct.SocketAddrV4.html#method.set_port),
-
[`SocketAddrV6::set_ip`](https://doc.rust-lang.org/stable/std/net/struct.SocketAddrV6.html#method.set_ip)
-
[`SocketAddrV6::set_port`](https://doc.rust-lang.org/stable/std/net/struct.SocketAddrV6.html#method.set_port)
-
[`SocketAddrV6::set_flowinfo`](https://doc.rust-lang.org/stable/std/net/struct.SocketAddrV6.html#method.set_flowinfo)
-
[`SocketAddrV6::set_scope_id`](https://doc.rust-lang.org/stable/std/net/struct.SocketAddrV6.html#method.set_scope_id)
-
[`char::is_digit`](https://doc.rust-lang.org/stable/std/primitive.char.html#method.is_digit)
-
[`char::is_whitespace`](https://doc.rust-lang.org/stable/std/primitive.char.html#method.is_whitespace)
- [`<[[T;
N]]>::as_flattened`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.as_flattened)
- [`<[[T;
N]]>::as_flattened_mut`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.as_flattened_mut)
-
[`String::into_bytes`](https://doc.rust-lang.org/stable/std/string/struct.String.html#method.into_bytes)
-
[`String::as_str`](https://doc.rust-lang.org/stable/std/string/struct.String.html#method.as_str)
-
[`String::capacity`](https://doc.rust-lang.org/stable/std/string/struct.String.html#method.capacity)
-
[`String::as_bytes`](https://doc.rust-lang.org/stable/std/string/struct.String.html#method.as_bytes)
-
[`String::len`](https://doc.rust-lang.org/stable/std/string/struct.String.html#method.len)
-
[`String::is_empty`](https://doc.rust-lang.org/stable/std/string/struct.String.html#method.is_empty)
-
[`String::as_mut_str`](https://doc.rust-lang.org/stable/std/string/struct.String.html#method.as_mut_str)
-
[`String::as_mut_vec`](https://doc.rust-lang.org/stable/std/string/struct.String.html#method.as_mut_vec)
-
[`Vec::as_ptr`](https://doc.rust-lang.org/stable/std/vec/struct.Vec.html#method.as_ptr)
-
[`Vec::as_slice`](https://doc.rust-lang.org/stable/std/vec/struct.Vec.html#method.as_slice)
-
[`Vec::capacity`](https://doc.rust-lang.org/stable/std/vec/struct.Vec.html#method.capacity)
-
[`Vec::len`](https://doc.rust-lang.org/stable/std/vec/struct.Vec.html#method.len)
-
[`Vec::is_empty`](https://doc.rust-lang.org/stable/std/vec/struct.Vec.html#method.is_empty)
-
[`Vec::as_mut_slice`](https://doc.rust-lang.org/stable/std/vec/struct.Vec.html#method.as_mut_slice)
-
[`Vec::as_mut_ptr`](https://doc.rust-lang.org/stable/std/vec/struct.Vec.html#method.as_mut_ptr)

<a id="1.87.0-Cargo"></a>

## Cargo

- [Add terminal integration via ANSI OSC 9;4
sequences](https://redirect.github.com/rust-lang/cargo/pull/14615/)
- [chore: bump openssl to
v3](https://redirect.github.com/rust-lang/cargo/pull/15232/)
- [feat(package): add --exclude-lockfile
flag](https://redirect.github.com/rust-lang/cargo/pull/15234/)

<a id="1.87.0-Compatibility-Notes"></a>

## Compatibility Notes

- [Rust now raises an error for macro invocations inside the
`#![crate_name]`
attribute](https://redirect.github.com/rust-lang/rust/pull/127581)
- [Unstable fields are now always considered to be
inhabited](https://redirect.github.com/rust-lang/rust/pull/133889)
- [Macro arguments of unary operators followed by open beginning ranges
may now be matched
differently](https://redirect.github.com/rust-lang/rust/pull/134900)
- [Make `Debug` impl of raw pointers print metadata if
present](https://redirect.github.com/rust-lang/rust/pull/135080)
- [Warn against function pointers using unsupported ABI strings in
dependencies](https://redirect.github.com/rust-lang/rust/pull/135767)
- [Associated types on `dyn` types are no longer
deduplicated](https://redirect.github.com/rust-lang/rust/pull/136458)
- [Forbid attributes on `..` inside of struct patterns (`let Struct {
#[attribute] .. })
=`](https://redirect.github.com/rust-lang/rust/pull/136490)
- [Make `ptr_cast_add_auto_to_object` lint into hard
error](https://redirect.github.com/rust-lang/rust/pull/136764)
- Many `std::arch` intrinsics are now safe to call in some contexts,
there may now be new `unused_unsafe` warnings in existing codebases.
- [Limit `width` and `precision` formatting options to 16 bits on all
targets](https://redirect.github.com/rust-lang/rust/pull/136932)
- [Turn order dependent trait objects future incompat warning into a
hard error](https://redirect.github.com/rust-lang/rust/pull/136968)
- [Denote `ControlFlow` as
`#[must_use]`](https://redirect.github.com/rust-lang/rust/pull/137449)
- [Windows: The standard library no longer links `advapi32`, except on
win7.](https://redirect.github.com/rust-lang/rust/pull/138233) Code such
as C libraries that were relying on this assumption may need to
explicitly link advapi32.
- [Proc macros can no longer observe expanded `cfg(true)`
attributes.](https://redirect.github.com/rust-lang/rust/pull/138844)
- [Start changing the internal representation of pasted
tokens](https://redirect.github.com/rust-lang/rust/pull/124141). Certain
invalid declarative macros that were previously accepted in obscure
circumstances are now correctly rejected by the compiler. Use of a `tt`
fragment specifier can often fix these macros.
- [Don't allow flattened format_args in
const.](https://redirect.github.com/rust-lang/rust/pull/139624)

<a id="1.87.0-Internal-Changes"></a>

## Internal Changes

These changes do not affect any public interfaces of Rust, but they
represent
significant improvements to the performance or internals of rustc and
related
tools.

- [Update to LLVM
20](https://redirect.github.com/rust-lang/rust/pull/135763)

###
[`v1.86`](https://redirect.github.com/rust-lang/rust/blob/HEAD/RELEASES.md#Version-1860-2025-04-03)

[Compare
Source](https://redirect.github.com/rust-lang/rust/compare/1.85.0...1.86.0)

\==========================

<a id="1.86.0-Language"></a>

## Language

- [Stabilize upcasting trait objects to
supertraits.](https://redirect.github.com/rust-lang/rust/pull/134367)
- [Allow safe functions to be marked with the `#[target_feature]`
attribute.](https://redirect.github.com/rust-lang/rust/pull/134090)
- [The `missing_abi` lint now
warns-by-default.](https://redirect.github.com/rust-lang/rust/pull/132397)
- Rust now lints about double negations, to catch cases that might have
intended to be a prefix decrement operator (`--x`) as written in other
languages. This was previously a clippy lint, `clippy::double_neg`, and
is [now available directly in Rust as
`double_negations`.](https://redirect.github.com/rust-lang/rust/pull/126604)
- [More pointers are now detected as definitely not-null based on their
alignment in const
eval.](https://redirect.github.com/rust-lang/rust/pull/133700)
- [Empty `repr()` attribute applied to invalid items are now correctly
rejected.](https://redirect.github.com/rust-lang/rust/pull/133925)
- [Inner attributes `#![test]` and `#![rustfmt::skip]` are no longer
accepted in more places than
intended.](https://redirect.github.com/rust-lang/rust/pull/134276)

<a id="1.86.0-Compiler"></a>

## Compiler

- [Debug-assert that raw pointers are non-null on
access.](https://redirect.github.com/rust-lang/rust/pull/134424)
- [Change `-O` to mean `-C opt-level=3` instead of `-C opt-level=2` to
match Cargo's
defaults.](https://redirect.github.com/rust-lang/rust/pull/135439)
- [Fix emission of `overflowing_literals` under certain macro
environments.](https://redirect.github.com/rust-lang/rust/pull/136393)

<a id="1.86.0-Platform-Support"></a>

## Platform Support

- [Replace `i686-unknown-redox` target with
`i586-unknown-redox`.](https://redirect.github.com/rust-lang/rust/pull/136698)
- [Increase baseline CPU of `i686-unknown-hurd-gnu` to Pentium
4.](https://redirect.github.com/rust-lang/rust/pull/136700)
-   New tier 3 targets:
-
[`{aarch64-unknown,x86_64-pc}-nto-qnx710_iosock`](https://redirect.github.com/rust-lang/rust/pull/133631).
        For supporting Neutrino QNX 7.1 with `io-socket` network stack.
-
[`{aarch64-unknown,x86_64-pc}-nto-qnx800`](https://redirect.github.com/rust-lang/rust/pull/133631).
        For supporting Neutrino QNX 8.0 (`no_std`-only).
-
[`{x86_64,i686}-win7-windows-gnu`](https://redirect.github.com/rust-lang/rust/pull/134609).
Intended for backwards compatibility with Windows 7.
`{x86_64,i686}-win7-windows-msvc` are the Windows MSVC counterparts that
already exist as Tier 3 targets.
-
[`amdgcn-amd-amdhsa`](https://redirect.github.com/rust-lang/rust/pull/134740).
-
[`x86_64-pc-cygwin`](https://redirect.github.com/rust-lang/rust/pull/134999).
-
[`{mips,mipsel}-mti-none-elf`](https://redirect.github.com/rust-lang/rust/pull/135074).
        Initial bare-metal support.
-
[`m68k-unknown-none-elf`](https://redirect.github.com/rust-lang/rust/pull/135085).
- [`armv7a-nuttx-{eabi,eabihf}`, `aarch64-unknown-nuttx`, and
`thumbv7a-nuttx-{eabi,eabihf}`](https://redirect.github.com/rust-lang/rust/pull/135757).

Refer to Rust's \[platform support page]\[platform-support-doc]
for more information on Rust's tiered platform support.

<a id="1.86.0-Libraries"></a>

## Libraries

- The type of `FromBytesWithNulError` in
`CStr::from_bytes_with_nul(bytes: &[u8]) -> Result<&Self,
FromBytesWithNulError>` was [changed from an opaque struct to an
enum](https://redirect.github.com/rust-lang/rust/pull/134143), allowing
users to examine why the conversion failed.
- [Remove `RustcDecodable` and
`RustcEncodable`.](https://redirect.github.com/rust-lang/rust/pull/134272)
- [Deprecate libtest's `--logfile`
option.](https://redirect.github.com/rust-lang/rust/pull/134283)
- [On recent versions of Windows, `std::fs::remove_file` will now remove
read-only
files.](https://redirect.github.com/rust-lang/rust/pull/134679)

<a id="1.86.0-Stabilized-APIs"></a>

## Stabilized APIs

-
[`{float}::next_down`](https://doc.rust-lang.org/stable/std/primitive.f64.html#method.next_down)
-
[`{float}::next_up`](https://doc.rust-lang.org/stable/std/primitive.f64.html#method.next_up)
-
[`<[_]>::get_disjoint_mut`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.get_disjoint_mut)
-
[`<[_]>::get_disjoint_unchecked_mut`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.get_disjoint_unchecked_mut)
-
[`slice::GetDisjointMutError`](https://doc.rust-lang.org/stable/std/slice/enum.GetDisjointMutError.html)
-
[`HashMap::get_disjoint_mut`](https://doc.rust-lang.org/std/collections/hash_map/struct.HashMap.html#method.get_disjoint_mut)
-
[`HashMap::get_disjoint_unchecked_mut`](https://doc.rust-lang.org/std/collections/hash_map/struct.HashMap.html#method.get_disjoint_unchecked_mut)
-
[`NonZero::count_ones`](https://doc.rust-lang.org/stable/std/num/struct.NonZero.html#method.count_ones)
-
[`Vec::pop_if`](https://doc.rust-lang.org/std/vec/struct.Vec.html#method.pop_if)
-
[`sync::Once::wait`](https://doc.rust-lang.org/stable/std/sync/struct.Once.html#method.wait)
-
[`sync::Once::wait_force`](https://doc.rust-lang.org/stable/std/sync/struct.Once.html#method.wait_force)
-
[`sync::OnceLock::wait`](https://doc.rust-lang.org/stable/std/sync/struct.OnceLock.html#method.wait)

These APIs are now stable in const contexts:

-
[`hint::black_box`](https://doc.rust-lang.org/stable/std/hint/fn.black_box.html)
-
[`io::Cursor::get_mut`](https://doc.rust-lang.org/stable/std/io/struct.Cursor.html#method.get_mut)
-
[`io::Cursor::set_position`](https://doc.rust-lang.org/stable/std/io/struct.Cursor.html#method.set_position)
-
[`str::is_char_boundary`](https://doc.rust-lang.org/stable/std/primitive.str.html#method.is_char_boundary)
-
[`str::split_at`](https://doc.rust-lang.org/stable/std/primitive.str.html#method.split_at)
-
[`str::split_at_checked`](https://doc.rust-lang.org/stable/std/primitive.str.html#method.split_at_checked)
-
[`str::split_at_mut`](https://doc.rust-lang.org/stable/std/primitive.str.html#method.split_at_mut)
-
[`str::split_at_mut_checked`](https://doc.rust-lang.org/stable/std/primitive.str.html#method.split_at_mut_checked)

<a id="1.86.0-Cargo"></a>

## Cargo

- [When merging, replace rather than combine configuration keys that
refer to a program path and its
arguments.](https://redirect.github.com/rust-lang/cargo/pull/15066/)
- [Error if both `--package` and `--workspace` are passed but the
requested package is
missing.](https://redirect.github.com/rust-lang/cargo/pull/15071/) This
was previously silently ignored, which was considered a bug since
missing packages should be reported.
- [Deprecate the token argument in `cargo login` to avoid shell history
leaks.](https://redirect.github.com/rust-lang/cargo/pull/15057/)
- [Simplify the implementation of `SourceID`
comparisons.](https://redirect.github.com/rust-lang/cargo/pull/14980/)
This may potentially change behavior if the canonicalized URL compares
differently in alternative registries.

<a id="1.86.0-Rustdoc"></a>

## Rustdoc

- [Add a sans-serif font
setting.](https://redirect.github.com/rust-lang/rust/pull/133636)

<a id="1.86.0-Compatibility-Notes"></a>

## Compatibility Notes

- [The `wasm_c_abi` future compatibility warning is now a hard
error.](https://redirect.github.com/rust-lang/rust/pull/133951)
Users of `wasm-bindgen` should upgrade to at least version 0.2.89,
otherwise compilation will fail.
- [Remove long-deprecated no-op attributes `#![no_start]` and
`#![crate_id]`.](https://redirect.github.com/rust-lang/rust/pull/134300)
- [The future incompatibility lint `cenum_impl_drop_cast` has been made
into a hard
error.](https://redirect.github.com/rust-lang/rust/pull/135964) This
means it is now an error to cast a field-less enum to an integer if the
enum implements `Drop`.
- [SSE2 is now required for "i686" 32-bit x86 hard-float targets;
disabling it causes a warning that will become a hard error
eventually.](https://redirect.github.com/rust-lang/rust/pull/137037)
    To compile for pre-SSE2 32-bit x86, use a "i586" target instead.

<a id="1.86.0-Internal-Changes"></a>

## Internal Changes

These changes do not affect any public interfaces of Rust, but they
represent
significant improvements to the performance or internals of rustc and
related
tools.

- [Build the rustc on AArch64 Linux with ThinLTO +
PGO.](https://redirect.github.com/rust-lang/rust/pull/133807)
The ARM 64-bit compiler (AArch64) on Linux is now optimized with ThinLTO
and PGO, similar to the optimizations we have already performed for the
x86-64 compiler on Linux. This should make it up to 30% faster.

###
[`v1.85`](https://redirect.github.com/rust-lang/rust/blob/HEAD/RELEASES.md#Version-1851-2025-03-18)

[Compare
Source](https://redirect.github.com/rust-lang/rust/compare/1.84.0...1.85.0)

\==========================

<a id="1.85.1"></a>

- [Fix the doctest-merging feature of the 2024
Edition.](https://redirect.github.com/rust-lang/rust/pull/137899/)
- [Relax some `target_feature` checks when generating
docs.](https://redirect.github.com/rust-lang/rust/pull/137632/)
- [Fix errors in `std::fs::rename` on Windows 10, version
1607.](https://redirect.github.com/rust-lang/rust/pull/137528/)
- [Downgrade bootstrap `cc` to fix custom
targets.](https://redirect.github.com/rust-lang/rust/pull/137460/)
- [Skip submodule updates when building Rust from a source
tarball.](https://redirect.github.com/rust-lang/rust/pull/137338/)

###
[`v1.84`](https://redirect.github.com/rust-lang/rust/blob/HEAD/RELEASES.md#Version-1841-2025-01-30)

[Compare
Source](https://redirect.github.com/rust-lang/rust/compare/1.83.0...1.84.0)

\==========================

<a id="1.84.1"></a>

- [Fix ICE 132920 in duplicate-crate
diagnostics.](https://redirect.github.com/rust-lang/rust/pull/133304/)
- [Fix errors for overlapping impls in incremental
rebuilds.](https://redirect.github.com/rust-lang/rust/pull/133828/)
- [Fix slow compilation related to the next-generation trait
solver.](https://redirect.github.com/rust-lang/rust/pull/135618/)
- [Fix debuginfo when LLVM's location discriminator value limit is
exceeded.](https://redirect.github.com/rust-lang/rust/pull/135643/)
-   Fixes for building Rust from source:
- [Only try to distribute `llvm-objcopy` if llvm tools are
enabled.](https://redirect.github.com/rust-lang/rust/pull/134240/)
- [Add Profile Override for Non-Git
Sources.](https://redirect.github.com/rust-lang/rust/pull/135433/)
- [Resolve symlinks of LLVM tool binaries before copying
them.](https://redirect.github.com/rust-lang/rust/pull/135585/)
- [Make it possible to use ci-rustc on tarball
sources.](https://redirect.github.com/rust-lang/rust/pull/135722/)

###
[`v1.83`](https://redirect.github.com/rust-lang/rust/blob/HEAD/RELEASES.md#Version-1830-2024-11-28)

[Compare
Source](https://redirect.github.com/rust-lang/rust/compare/1.82.0...1.83.0)

\==========================

<a id="1.83.0-Language"></a>

## Language

- [Stabilize `&mut`, `*mut`, `&Cell`, and `*const Cell` in
const.](https://redirect.github.com/rust-lang/rust/pull/129195)
- [Allow creating references to statics in `const`
initializers.](https://redirect.github.com/rust-lang/rust/pull/129759)
- [Implement raw lifetimes and labels
(`'r#ident`).](https://redirect.github.com/rust-lang/rust/pull/126452)
- [Define behavior when atomic and non-atomic reads
race.](https://redirect.github.com/rust-lang/rust/pull/128778)
- [Non-exhaustive structs may now be
empty.](https://redirect.github.com/rust-lang/rust/pull/128934)
- [Disallow implicit coercions from places of type
`!`](https://redirect.github.com/rust-lang/rust/pull/129392)
- [`const extern` functions can now be defined for other calling
conventions.](https://redirect.github.com/rust-lang/rust/pull/129753)
- [Stabilize `expr_2021` macro fragment specifier in all
editions.](https://redirect.github.com/rust-lang/rust/pull/129972)
- [The `non_local_definitions` lint now fires on less code and warns by
default.](https://redirect.github.com/rust-lang/rust/pull/127117)

<a id="1.83.0-Compiler"></a>

## Compiler

- [Deprecate unsound `-Csoft-float`
flag.](https://redirect.github.com/rust-lang/rust/pull/129897)
-   Add many new tier 3 targets:
-
[`aarch64_unknown_nto_qnx700`](https://redirect.github.com/rust-lang/rust/pull/127897)
-
[`arm64e-apple-tvos`](https://redirect.github.com/rust-lang/rust/pull/130614)
-
[`armv7-rtems-eabihf`](https://redirect.github.com/rust-lang/rust/pull/127021)
-
[`loongarch64-unknown-linux-ohos`](https://redirect.github.com/rust-lang/rust/pull/130750)
- [`riscv32-wrs-vxworks` and
`riscv64-wrs-vxworks`](https://redirect.github.com/rust-lang/rust/pull/130549)
-
[`riscv32{e|em|emc}-unknown-none-elf`](https://redirect.github.com/rust-lang/rust/pull/130555)
-
[`x86_64-unknown-hurd-gnu`](https://redirect.github.com/rust-lang/rust/pull/128345)
-
[`x86_64-unknown-trusty`](https://redirect.github.com/rust-lang/rust/pull/130453)

Refer to Rust's \[platform support page]\[platform-support-doc]
for more information on Rust's tiered platform support.

<a id="1.83.0-Libraries"></a>

## Libraries

- [Implement `PartialEq` for
`ExitCode`.](https://redirect.github.com/rust-lang/rust/pull/127633)
- [Document that `catch_unwind` can deal with foreign exceptions without
UB, although the exact behavior is
unspecified.](https://redirect.github.com/rust-lang/rust/pull/128321)
- [Implement `Default` for `HashMap`/`HashSet` iterators that don't
already have
it.](https://redirect.github.com/rust-lang/rust/pull/128711)
- [Bump Unicode to version
16.0.0.](https://redirect.github.com/rust-lang/rust/pull/130183)
- [Change documentation of `ptr::add`/`sub` to not claim equivalence
with `offset`.](https://redirect.github.com/rust-lang/rust/pull/130229)

<a id="1.83.0-Stabilized-APIs"></a>

## Stabilized APIs

-
[`BufRead::skip_until`](https://doc.rust-lang.org/stable/std/io/trait.BufRead.html#method.skip_until)
-
[`ControlFlow::break_value`](https://doc.rust-lang.org/stable/core/ops/enum.ControlFlow.html#method.break_value)
-
[`ControlFlow::continue_value`](https://doc.rust-lang.org/stable/core/ops/enum.ControlFlow.html#method.continue_value)
-
[`ControlFlow::map_break`](https://doc.rust-lang.org/stable/core/ops/enum.ControlFlow.html#method.map_break)
-
[`ControlFlow::map_continue`](https://doc.rust-lang.org/stable/core/ops/enum.ControlFlow.html#method.map_continue)
-
[`DebugList::finish_non_exhaustive`](https://doc.rust-lang.org/stable/core/fmt/struct.DebugList.html#method.finish_non_exhaustive)
-
[`DebugMap::finish_non_exhaustive`](https://doc.rust-lang.org/stable/core/fmt/struct.DebugMap.html#method.finish_non_exhaustive)
-
[`DebugSet::finish_non_exhaustive`](https://doc.rust-lang.org/stable/core/fmt/struct.DebugSet.html#method.finish_non_exhaustive)
-
[`DebugTuple::finish_non_exhaustive`](https://doc.rust-lang.org/stable/core/fmt/struct.DebugTuple.html#method.finish_non_exhaustive)
-
[`ErrorKind::ArgumentListTooLong`](https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html#variant.ArgumentListTooLong)
-
[`ErrorKind::Deadlock`](https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html#variant.Deadlock)
-
[`ErrorKind::DirectoryNotEmpty`](https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html#variant.DirectoryNotEmpty)
-
[`ErrorKind::ExecutableFileBusy`](https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html#variant.ExecutableFileBusy)
-
[`ErrorKind::FileTooLarge`](https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html#variant.FileTooLarge)
-
[`ErrorKind::HostUnreachable`](https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html#variant.HostUnreachable)
-
[`ErrorKind::IsADirectory`](https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html#variant.IsADirectory)
-
[`ErrorKind::NetworkDown`](https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html#variant.NetworkDown)
-
[`ErrorKind::NetworkUnreachable`](https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html#variant.NetworkUnreachable)
-
[`ErrorKind::NotADirectory`](https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html#variant.NotADirectory)
-
[`ErrorKind::NotSeekable`](https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html#variant.NotSeekable)
-
[`ErrorKind::ReadOnlyFilesystem`](https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html#variant.ReadOnlyFilesystem)
-
[`ErrorKind::ResourceBusy`](https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html#variant.ResourceBusy)
-
[`ErrorKind::StaleNetworkFileHandle`](https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html#variant.StaleNetworkFileHandle)
-
[`ErrorKind::StorageFull`](https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html#variant.StorageFull)
-
[`ErrorKind::TooManyLinks`](https://doc.rust-lang.org/stable/std/io/enum.ErrorKind.html#variant.TooManyLinks)
-
[`Option::get_or_insert_default`](https://doc.rust-lang.org/stable/core/option/enum.Option.html#method.get_or_insert_default)
-
[`Waker::data`](https://doc.rust-lang.org/stable/core/task/struct.Waker.html#method.data)
-
[`Waker::new`](https://doc.rust-lang.org/stable/core/task/struct.Waker.html#method.new)
-
[`Waker::vtable`](https://doc.rust-lang.org/stable/core/task/struct.Waker.html#method.vtable)
-
[`char::MIN`](https://doc.rust-lang.org/stable/core/primitive.char.html#associatedconstant.MIN)
-
[`hash_map::Entry::insert_entry`](https://doc.rust-lang.org/stable/std/collections/hash_map/enum.Entry.html#method.insert_entry)
-
[`hash_map::VacantEntry::insert_entry`](https://doc.rust-lang.org/stable/std/collections/hash_map/struct.VacantEntry.html#method.insert_entry)

These APIs are now stable in const contexts:

-
[`Cell::into_inner`](https://doc.rust-lang.org/stable/core/cell/struct.Cell.html#method.into_inner)
-
[`Duration::as_secs_f32`](https://doc.rust-lang.org/stable/core/time/struct.Duration.html#method.as_secs_f32)
-
[`Duration::as_secs_f64`](https://doc.rust-lang.org/stable/core/time/struct.Duration.html#method.as_secs_f64)
-
[`Duration::div_duration_f32`](https://doc.rust-lang.org/stable/core/time/struct.Duration.html#method.div_duration_f32)
-
[`Duration::div_duration_f64`](https://doc.rust-lang.org/stable/core/time/struct.Duration.html#method.div_duration_f64)
-
[`MaybeUninit::as_mut_ptr`](https://doc.rust-lang.org/stable/core/mem/union.MaybeUninit.html#method.as_mut_ptr)
-
[`NonNull::as_mut`](https://doc.rust-lang.org/stable/core/ptr/struct.NonNull.html#method.as_mut)
-
[`NonNull::copy_from`](https://doc.rust-lang.org/stable/core/ptr/struct.NonNull.html#method.copy_from)
-
[`NonNull::copy_from_nonoverlapping`](https://doc.rust-lang.org/stable/core/ptr/struct.NonNull.html#method.copy_from_nonoverlapping)
-
[`NonNull::copy_to`](https://doc.rust-lang.org/stable/core/ptr/struct.NonNull.html#method.copy_to)
-
[`NonNull::copy_to_nonoverlapping`](https://doc.rust-lang.org/stable/core/ptr/struct.NonNull.html#method.copy_to_nonoverlapping)
-
[`NonNull::slice_from_raw_parts`](https://doc.rust-lang.org/stable/core/ptr/struct.NonNull.html#method.slice_from_raw_parts)
-
[`NonNull::write`](https://doc.rust-lang.org/stable/core/ptr/struct.NonNull.html#method.write)
-
[`NonNull::write_bytes`](https://doc.rust-lang.org/stable/core/ptr/struct.NonNull.html#method.write_bytes)
-
[`NonNull::write_unaligned`](https://doc.rust-lang.org/stable/core/ptr/struct.NonNull.html#method.write_unaligned)
-
[`OnceCell::into_inner`](https://doc.rust-lang.org/stable/core/cell/struct.OnceCell.html#method.into_inner)
-
[`Option::as_mut`](https://doc.rust-lang.org/stable/core/option/enum.Option.html#method.as_mut)
-
[`Option::expect`](https://doc.rust-lang.org/stable/core/option/enum.Option.html#method.expect)
-
[`Option::replace`](https://doc.rust-lang.org/stable/core/option/enum.Option.html#method.replace)
-
[`Option::take`](https://doc.rust-lang.org/stable/core/option/enum.Option.html#method.take)
-
[`Option::unwrap`](https://doc.rust-lang.org/stable/core/option/enum.Option.html#method.unwrap)
-
[`Option::unwrap_unchecked`](https://doc.rust-lang.org/stable/core/option/enum.Option.html#method.unwrap_unchecked)
-
[`Option::<&_>::copied`](https://doc.rust-lang.org/stable/core/option/enum.Option.html#method.copied)
- [`Option::<&mut
_>::copied`](https://doc.rust-lang.org/stable/core/option/enum.Option.html#method.copied-1)
-
[`Option::<Option<_>>::flatten`](https://doc.rust-lang.org/stable/core/option/enum.Option.html#method.flatten)
- [`Option::<Result<_,
_>>::transpose`](https://doc.rust-lang.org/stable/core/option/enum.Option.html#method.transpose)
-
[`RefCell::into_inner`](https://doc.rust-lang.org/stable/core/cell/struct.RefCell.html#method.into_inner)
-
[`Result::as_mut`](https://doc.rust-lang.org/stable/core/result/enum.Result.html#method.as_mut)
- [`Result::<&_,
_>::copied`](https://doc.rust-lang.org/stable/core/result/enum.Result.html#method.copied)
- [`Result::<&mut _,
_>::copied`](https://doc.rust-lang.org/stable/core/result/enum.Result.html#method.copied-1)
- [`Result::<Option<_>,
_>::transpose`](https://doc.rust-lang.org/stable/core/result/enum.Result.html#method.transpose)
-
[`UnsafeCell::get_mut`](https://doc.rust-lang.org/stable/core/cell/struct.UnsafeCell.html#method.get_mut)
-
[`UnsafeCell::into_inner`](https://doc.rust-lang.org/stable/core/cell/struct.UnsafeCell.html#method.into_inner)
-
[`array::from_mut`](https://doc.rust-lang.org/stable/core/array/fn.from_mut.html)
-
[`char::encode_utf8`](https://doc.rust-lang.org/stable/core/primitive.char.html#method.encode_utf8)
-
[`{float}::classify`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.classify)
-
[`{float}::is_finite`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_finite)
-
[`{float}::is_infinite`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_infinite)
-
[`{float}::is_nan`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_nan)
-
[`{float}::is_normal`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_normal)
-
[`{float}::is_sign_negative`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_sign_negative)
-
[`{float}::is_sign_positive`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_sign_positive)
-
[`{float}::is_subnormal`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.is_subnormal)
-
[`{float}::from_bits`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.from_bits)
-
[`{float}::from_be_bytes`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.from_be_bytes)
-
[`{float}::from_le_bytes`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.from_le_bytes)
-
[`{float}::from_ne_bytes`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.from_ne_bytes)
-
[`{float}::to_bits`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.to_bits)
-
[`{float}::to_be_bytes`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.to_be_bytes)
-
[`{float}::to_le_bytes`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.to_le_bytes)
-
[`{float}::to_ne_bytes`](https://doc.rust-lang.org/stable/core/primitive.f64.html#method.to_ne_bytes)
-
[`mem::replace`](https://doc.rust-lang.org/stable/core/mem/fn.replace.html)
-
[`ptr::replace`](https://doc.rust-lang.org/stable/core/ptr/fn.replace.html)
-
[`ptr::slice_from_raw_parts_mut`](https://doc.rust-lang.org/stable/core/ptr/fn.slice_from_raw_parts_mut.html)
-
[`ptr::write`](https://doc.rust-lang.org/stable/core/ptr/fn.write.html)
-
[`ptr::write_unaligned`](https://doc.rust-lang.org/stable/core/ptr/fn.write_unaligned.html)
- [`<*const
_>::copy_to`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.copy_to)
- [`<*const
_>::copy_to_nonoverlapping`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.copy_to_nonoverlapping)
- [`<*mut
_>::copy_from`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.copy_from)
- [`<*mut
_>::copy_from_nonoverlapping`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.copy_from_nonoverlapping)
- [`<*mut
_>::copy_to`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.copy_to-1)
- [`<*mut
_>::copy_to_nonoverlapping`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.copy_to_nonoverlapping-1)
- [`<*mut
_>::write`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.write)
- [`<*mut
_>::write_bytes`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.write_bytes)
- [`<*mut
_>::write_unaligned`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.write_unaligned)
-
[`slice::from_mut`](https://doc.rust-lang.org/stable/core/slice/fn.from_mut.html)
-
[`slice::from_raw_parts_mut`](https://doc.rust-lang.org/stable/core/slice/fn.from_raw_parts_mut.html)
-
[`<[_]>::first_mut`](https://doc.rust-lang.org/stable/core/primitive.slice.html#method.first_mut)
-
[`<[_]>::last_mut`](https://doc.rust-lang.org/stable/core/primitive.slice.html#method.last_mut)
-
[`<[_]>::first_chunk_mut`](https://doc.rust-lang.org/stable/core/primitive.slice.html#method.first_chunk_mut)
-
[`<[_]>::last_chunk_mut`](https://doc.rust-lang.org/stable/core/primitive.slice.html#method.last_chunk_mut)
-
[`<[_]>::split_at_mut`](https://doc.rust-lang.org/stable/core/primitive.slice.html#method.split_at_mut)
-
[`<[_]>::split_at_mut_checked`](https://doc.rust-lang.org/stable/core/primitive.slice.html#method.split_at_mut_checked)
-
[`<[_]>::split_at_mut_unchecked`](https://doc.rust-lang.org/stable/core/primitive.slice.html#method.split_at_mut_unchecked)
-
[`<[_]>::split_first_mut`](https://doc.rust-lang.org/stable/core/primitive.slice.html#method.split_first_mut)
-
[`<[_]>::split_last_mut`](https://doc.rust-lang.org/stable/core/primitive.slice.html#method.split_last_mut)
-
[`<[_]>::split_first_chunk_mut`](https://doc.rust-lang.org/stable/core/primitive.slice.html#method.split_first_chunk_mut)
-
[`<[_]>::split_last_chunk_mut`](https://doc.rust-lang.org/stable/core/primitive.slice.html#method.split_last_chunk_mut)
-
[`str::as_bytes_mut`](https://doc.rust-lang.org/stable/core/primitive.str.html#method.as_bytes_mut)
-
[`str::as_mut_ptr`](https://doc.rust-lang.org/stable/core/primitive.str.html#method.as_mut_ptr)
-
[`str::from_utf8_unchecked_mut`](https://doc.rust-lang.org/stable/core/str/fn.from_utf8\_unchecked_mut.html)

<a id="1.83.0-Cargo"></a>

## Cargo

- [Introduced a new `CARGO_MANIFEST_PATH` environment variable, similar
to `CARGO_MANIFEST_DIR` but pointing directly to the manifest
file.](https://redirect.github.com/rust-lang/cargo/pull/14404/)
- [Added `package.autolib` to the manifest, allowing `[lib]`
auto-discovery to be
disabled.](https://redirect.github.com/rust-lang/cargo/pull/14591/)
- [Declare support level for each crate in Cargo's Charter / crate
docs.](https://redirect.github.com/rust-lang/cargo/pull/14600/)
- [Declare new Intentional Artifacts as 'small'
changes.](https://redirect.github.com/rust-lang/cargo/pull/14599/)

<a id="1.83-Rustdoc"></a>

## Rustdoc

- [The sidebar / hamburger menu table of contents now includes the `#
headers` from the main item's doc
comment](https://redirect.github.com/rust-lang/rust/pull/120736). This
is similar to a third-party feature provided by the
rustdoc-search-enhancements browser extension.

<a id="1.83.0-Compatibility-Notes"></a>

## Compatibility Notes

- [Warn against function pointers using unsupported ABI
strings.](https://redirect.github.com/rust-lang/rust/pull/128784)
- [Check well-formedness of the source type's signature in fn pointer
casts.](https://redirect.github.com/rust-lang/rust/pull/129021) This
partly closes a soundness hole that comes when casting a function item
to function pointer
- [Use equality instead of subtyping when resolving type dependent
paths.](https://redirect.github.com/rust-lang/rust/pull/129073)
- Linking on macOS now correctly includes Rust's default deployment
target. Due to a linker bug, you might have to pass
`MACOSX_DEPLOYMENT_TARGET` or fix your `#[link]` attributes to point to
the correct frameworks. See
[#&#8203;129369](https://redirect.github.com/rust-lang/rust/pull/129369).
- [Rust will now correctly raise an error for `repr(Rust)` written on
non-`struct`/`enum`/`union` items, since it previous did not have any
effect.](https://redirect.github.com/rust-lang/rust/pull/129422)
- The future incompatibility lint `deprecated_cfg_attr_crate_type_name`
[has been made into a hard
error](https://redirect.github.com/rust-lang/rust/pull/129670). It was
used to deny usage of `#![crate_type]` and `#![crate_name]` attributes
in `#![cfg_attr]`, which required a hack in the compiler to be able to
change the used crate type and crate name after cfg expansion.
Users can use `--crate-type` instead of `#![cfg_attr(..., crate_type =
"...")]` and `--crate-name` instead of `#![cfg_attr(..., crate_name =
"...")]` when running `rustc`/`cargo rustc` on the command line.
Use of those two attributes outside of `#![cfg_attr]` continue to be
fully supported.
- Until now, paths into the sysroot were always prefixed with
`/rustc/$hash` in diagnostics, codegen, backtrace, e.g.

        thread 'main' panicked at 'hello world', map-panic.rs:2:50
        stack backtrace:
           0: std::panicking::begin_panic
at
/rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:616:12
           1: map_panic::main::{{closure}}
                     at ./map-panic.rs:2:50
           2: core::option::Option<T>::map
at
/rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/option.rs:929:29
           3: map_panic::main
                     at ./map-panic.rs:2:30
           4: core::ops::function::FnOnce::call_once
at
/rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/ops/function.rs:248:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a
verbose backtrace.

[RFC 3127
said](https://rust-lang.github.io/rfcs/3127-trim-paths.html#changing-handling-of-sysroot-path-in-rustc)

> We want to change this behaviour such that, when `rust-src` source
files can be discovered, the virtual path is discarded and therefore the
local path will be embedded, unless there is a `--remap-path-prefix`
that causes this local path to be remapped in the usual way.


[#&#8203;129687](https://redirect.github.com/rust-lang/rust/pull/129687)
implements this behaviour, when `rust-src` is present at compile time,
`rustc` replaces `/rustc/$hash` with a real path into the local
`rust-src` component with best effort.
To sanitize this, users must explicitly supply
`--remap-path-prefix=<path to rust-src>=foo` or not have the `rust-src`
component installed.
- The allow-by-default `missing_docs` lint used to disable itself when
invoked through `rustc --test`/`cargo test`, resulting in
`#[expect(missing_docs)]` emitting false positives due to the
expectation being wrongly unfulfilled. This behavior [has now been
removed](https://redirect.github.com/rust-lang/rust/pull/130025), which
allows `#[expect(missing_docs)]` to be fulfilled in all scenarios, but
will also report new `missing_docs` diagnostics for publicly reachable
`#[cfg(test)]` items, [integration
test](https://doc.rust-lang.org/cargo/reference/cargo-targets.html#integration-tests)
crate-level documentation, and publicly reachable items in integration
tests.
- [The `armv8r-none-eabihf` target now uses the Armv8-R required set of
floating-point
features.](https://redirect.github.com/rust-lang/rust/pull/130295)
- [Fix a soundness bug where rustc wouldn't detect unconstrained
higher-ranked lifetimes in a `dyn Trait`'s associated types that occur
due to
supertraits.](https://redirect.github.com/rust-lang/rust/pull/130367)
- [Update the minimum external LLVM version to
18.](https://redirect.github.com/rust-lang/rust/pull/130487)
- [Remove `aarch64-fuchsia` and `x86_64-fuchsia` target aliases in favor
of `aarch64-unknown-fuchsia` and `x86_64-unknown-fuchsia`
respectively.](https://redirect.github.com/rust-lang/rust/pull/130657)
- [The ABI-level exception class of a Rust panic is now encoded with
native-endian bytes, so it is legible in hex
dumps.](https://redirect.github.com/rust-lang/rust/pull/130897)
- [Visual Studio 2013 is no longer supported for MSVC
targets.](https://redirect.github.com/rust-lang/rust/pull/131070)
- [The sysroot no longer contains the `std` dynamic library in its
top-level `lib/`
dir.](https://redirect.github.com/rust-lang/rust/pull/131188)

###
[`v1.82`](https://redirect.github.com/rust-lang/rust/blob/HEAD/RELEASES.md#Version-1820-2024-10-17)

[Compare
Source](https://redirect.github.com/rust-lang/rust/compare/1.81.0...1.82.0)

\==========================

<a id="1.82.0-Language"></a>

## Language

- [Don't make statement nonterminals match pattern
nonterminals](https://redirect.github.com/rust-lang/rust/pull/120221/)
- [Patterns matching empty types can now be omitted in common
cases](https://redirect.github.com/rust-lang/rust/pull/122792)
- [Enforce supertrait outlives obligations when using trait
impls](https://redirect.github.com/rust-lang/rust/pull/124336)
- [`addr_of(_mut)!` macros and the newly stabilized `&raw (const|mut)`
are now safe to use with all static
items](https://redirect.github.com/rust-lang/rust/pull/125834)
- [size_of_val_raw: for length 0 this is safe to
call](https://redirect.github.com/rust-lang/rust/pull/126152/)
- [Reorder trait bound modifiers *after* `for<...>` binder in trait
bounds](https://redirect.github.com/rust-lang/rust/pull/127054/)
- [Stabilize `+ use<'lt>` opaque type precise capturing (RFC
3617)](https://redirect.github.com/rust-lang/rust/pull/127672)
- [Stabilize `&raw const` and `&raw mut` operators (RFC
2582)](https://redirect.github.com/rust-lang/rust/pull/127679)
- [Stabilize unsafe extern blocks (RFC
3484)](https://redirect.github.com/rust-lang/rust/pull/127921)
- [Stabilize nested field access in
`offset_of!`](https://redirect.github.com/rust-lang/rust/pull/128284)
- [Do not require `T` to be live when dropping `[T;
0]`](https://redirect.github.com/rust-lang/rust/pull/128438)
- [Stabilize `const` operands in inline
assembly](https://redirect.github.com/rust-lang/rust/pull/128570)
- [Stabilize floating-point arithmetic in `const
fn`](https://redirect.github.com/rust-lang/rust/pull/128596)
- [Stabilize explicit opt-in to unsafe
attributes](https://redirect.github.com/rust-lang/rust/pull/128771)
- [Document NaN bit patterns
guarantees](https://redirect.github.com/rust-lang/rust/pull/129559)

<a id="1.82.0-Compiler"></a>

## Compiler

- [Promote riscv64gc-unknown-linux-musl to tier
2](https://redirect.github.com/rust-lang/rust/pull/122049)
- [Promote Mac Catalyst targets `aarch64-apple-ios-macabi` and
`x86_64-apple-ios-macabi` to Tier 2, and ship them with
rustup](https://redirect.github.com/rust-lang/rust/pull/126450)
- [Add tier 3 NuttX based targets for RISC-V and
ARM](https://redirect.github.com/rust-lang/rust/pull/127755)
- [Add tier 3 powerpc-unknown-linux-muslspe
target](https://redirect.github.com/rust-lang/rust/pull/127905)
- [Improved diagnostics to explain why a pattern is
unreachable](https://redirect.github.com/rust-lang/rust/pull/128034)
- [The compiler now triggers the unreachable code warning properly for
async functions that don't return/are `->
!`](https://redirect.github.com/rust-lang/rust/pull/128443)
- [Promote `aarch64-apple-darwin` to Tier
1](https://redirect.github.com/rust-lang/rust/pull/128592)
- [Add Trusty OS target `aarch64-unknown-trusty` and
`armv7-unknown-trusty` as tier 3
targets](https://redirect.github.com/rust-lang/rust/pull/129490)
- [Promote `wasm32-wasip2` to Tier
2.](https://redirect.github.com/rust-lang/rust/pull/126967/)

<a id="1.82.0-Libraries"></a>

## Libraries

- [Generalize `{Rc,Arc}::make_mut()` to `Path`, `OsStr`, and
`CStr`.](https://redirect.github.com/rust-lang/rust/pull/126877)

<a id="1.82.0-Stabilized-APIs"></a>

## Stabilized APIs

-
[`std::thread::Builder::spawn_unchecked`](https://doc.rust-lang.org/stable/std/thread/struct.Builder.html#method.spawn_unchecked)
-
[`std::str::CharIndices::offset`](https://doc.rust-lang.org/nightly/std/str/struct.CharIndices.html#method.offset)
-
[`std::option::Option::is_none_or`](https://doc.rust-lang.org/nightly/std/option/enum.Option.html#method.is_none_or)
-
[`[T]::is_sorted`](https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.is_sorted)
-
[`[T]::is_sorted_by`](https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.is_sorted_by)
-
[`[T]::is_sorted_by_key`](https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.is_sorted_by_key)
-
[`Iterator::is_sorted`](https://doc.rust-lang.org/nightly/std/iter/trait.Iterator.html#method.is_sorted)
-
[`Iterator::is_sorted_by`](https://doc.rust-lang.org/nightly/std/iter/trait.Iterator.html#method.is_sorted_by)
-
[`Iterator::is_sorted_by_key`](https://doc.rust-lang.org/nightly/std/iter/trait.Iterator.html#method.is_sorted_by_key)
-
[`std::future::Ready::into_inner`](https://doc.rust-lang.org/nightly/std/future/struct.Ready.html#method.into_inner)
-
[`std::iter::repeat_n`](https://doc.rust-lang.org/nightly/std/iter/fn.repeat_n.html)
- [`impl<T: Clone> DoubleEndedIterator for
Take<Repeat<T>>`](https://doc.rust-lang.org/nightly/std/iter/struct.Take.html#impl-DoubleEndedIterator-for-Take%3CRepeat%3CT%3E%3E)
- [`impl<T: Clone> ExactSizeIterator for
Take<Repeat<T>>`](https://doc.rust-lang.org/nightly/std/iter/struct.Take.html#impl-ExactSizeIterator-for-Take%3CRepeat%3CT%3E%3E)
- [`impl<T: Clone> ExactSizeIterator for
Take<RepeatWith<T>>`](https://doc.rust-lang.org/nightly/std/iter/struct.Take.html#impl-ExactSizeIterator-for-Take%3CRepeatWith%3CF%3E%3E)
- [`impl Default for
std::collections::binary_heap::Iter`](https://doc.rust-lang.org/nightly/std/collections/binary_heap/struct.Iter.html#impl-Default-for-Iter%3C'\_,+T%3E)
- [`impl Default for
std::collections::btree_map::RangeMut`](https://doc.rust-lang.org/nightly/std/collections/btree_map/struct.RangeMut.html#impl-Default-for-RangeMut%3C'\_,+K,+V%3E)
- [`impl Default for
std::collections::btree_map::ValuesMut`](https://doc.rust-lang.org/nightly/std/collections/btree_map/struct.ValuesMut.html#impl-Default-for-ValuesMut%3C'\_,+K,+V%3E)
- [`impl Default for
std::collections::vec_deque::Iter`](https://doc.rust-lang.org/nightly/std/collections/vec_deque/struct.Iter.html#impl-Default-for-Iter%3C'\_,+T%3E)
- [`impl Default for
std::collections::vec_deque::IterMut`](https://doc.rust-lang.org/nightly/std/collections/vec_deque/struct.IterMut.html#impl-Default-for-IterMut%3C'\_,+T%3E)
-
[`Rc<T>::new_uninit`](https://doc.rust-lang.org/nightly/std/rc/struct.Rc.html#method.new_uninit)
-
[`Rc<MaybeUninit<T>>::assume_init`](https://doc.rust-lang.org/nightly/std/rc/struct.Rc.html#method.assume_init)
-
[`Rc<[T]>::new_uninit_slice`](https://doc.rust-lang.org/nightly/std/rc/struct.Rc.html#method.new_uninit_slice)
-
[`Rc<[MaybeUninit<T>]>::assume_init`](https://doc.rust-lang.org/nightly/std/rc/struct.Rc.html#method.assume_init-1)
-
[`Arc<T>::new_uninit`](https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.new_uninit)
-
[`Arc<MaybeUninit<T>>::assume_init`](https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.assume_init)
-
[`Arc<[T]>::new_uninit_slice`](https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.new_uninit_slice)
-
[`Arc<[MaybeUninit<T>]>::assume_init`](https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.assume_init-1)
-
[`Box<T>::new_uninit`](https://doc.rust-lang.org/nightly/std/boxed/struct.Box.html#method.new_uninit)
-
[`Box<MaybeUninit<T>>::assume_init`](https://doc.rust-lang.org/nightly/std/boxed/struct.Box.html#method.assume_init)
-
[`Box<[T]>::new_uninit_slice`](https://doc.rust-lang.org/nightly/std/boxed/struct.Box.html#method.new_uninit_slice)
-
[`Box<[MaybeUninit<T>]>::assume_init`](https://doc.rust-lang.org/nightly/std/boxed/struct.Box.html#method.assume_init-1)
-
[`core::arch::x86_64::_bextri_u64`](https://doc.rust-lang.org/stable/core/arch/x86\_64/fn.\_bextri_u64.html)
-
[`core::arch::x86_64::_bextri_u32`](https://doc.rust-lang.org/stable/core/arch/x86\_64/fn.\_bextri_u32.html)
-
[`core::arch::x86::_mm_broadcastsi128_si256`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_mm_broadcastsi128\_si256.html)
-
[`core::arch::x86::_mm256_stream_load_si256`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_mm256\_stream_load_si256.html)
-
[`core::arch::x86::_tzcnt_u16`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_tzcnt_u16.html)
-
[`core::arch::x86::_mm_extracti_si64`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_mm_extracti_si64.html)
-
[`core::arch::x86::_mm_inserti_si64`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_mm_inserti_si64.html)
-
[`core::arch::x86::_mm_storeu_si16`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_mm_storeu_si16.html)
-
[`core::arch::x86::_mm_storeu_si32`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_mm_storeu_si32.html)
-
[`core::arch::x86::_mm_storeu_si64`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_mm_storeu_si64.html)
-
[`core::arch::x86::_mm_loadu_si16`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_mm_loadu_si16.html)
-
[`core::arch::x86::_mm_loadu_si32`](https://doc.rust-lang.org/stable/core/arch/x86/fn.\_mm_loadu_si32.html)
-
[`core::arch::wasm32::u8x16_relaxed_swizzle`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u8x16\_relaxed_swizzle.html)
-
[`core::arch::wasm32::i8x16_relaxed_swizzle`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i8x16\_relaxed_swizzle.html)
-
[`core::arch::wasm32::i32x4_relaxed_trunc_f32x4`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i32x4\_relaxed_trunc_f32x4.html)
-
[`core::arch::wasm32::u32x4_relaxed_trunc_f32x4`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u32x4\_relaxed_trunc_f32x4.html)
-
[`core::arch::wasm32::i32x4_relaxed_trunc_f64x2_zero`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i32x4\_relaxed_trunc_f64x2\_zero.html)
-
[`core::arch::wasm32::u32x4_relaxed_trunc_f64x2_zero`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u32x4\_relaxed_trunc_f64x2\_zero.html)
-
[`core::arch::wasm32::f32x4_relaxed_madd`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f32x4\_relaxed_madd.html)
-
[`core::arch::wasm32::f32x4_relaxed_nmadd`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f32x4\_relaxed_nmadd.html)
-
[`core::arch::wasm32::f64x2_relaxed_madd`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f64x2\_relaxed_madd.html)
-
[`core::arch::wasm32::f64x2_relaxed_nmadd`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f64x2\_relaxed_nmadd.html)
-
[`core::arch::wasm32::i8x16_relaxed_laneselect`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i8x16\_relaxed_laneselect.html)
-
[`core::arch::wasm32::u8x16_relaxed_laneselect`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u8x16\_relaxed_laneselect.html)
-
[`core::arch::wasm32::i16x8_relaxed_laneselect`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i16x8\_relaxed_laneselect.html)
-
[`core::arch::wasm32::u16x8_relaxed_laneselect`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u16x8\_relaxed_laneselect.html)
-
[`core::arch::wasm32::i32x4_relaxed_laneselect`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i32x4\_relaxed_laneselect.html)
-
[`core::arch::wasm32::u32x4_relaxed_laneselect`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u32x4\_relaxed_laneselect.html)
-
[`core::arch::wasm32::i64x2_relaxed_laneselect`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.i64x2\_relaxed_laneselect.html)
-
[`core::arch::wasm32::u64x2_relaxed_laneselect`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.u64x2\_relaxed_laneselect.html)
-
[`core::arch::wasm32::f32x4_relaxed_min`](https://doc.rust-lang.org/nightly/core/arch/wasm32/fn.f32x4\_relaxed_min.htm

</details>

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