Skip to content

Constify PartialEq for Ordering #101810

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Sep 15, 2022
Merged

Constify PartialEq for Ordering #101810

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
15 changes: 14 additions & 1 deletion library/core/src/cmp.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@
#![stable(feature = "rust1", since = "1.0.0")]

use crate::marker::Destruct;
use crate::marker::StructuralPartialEq;

use self::Ordering::*;

Expand Down Expand Up @@ -338,7 +339,7 @@ pub struct AssertParamIsEq<T: Eq + ?Sized> {
/// let result = 2.cmp(&1);
/// assert_eq!(Ordering::Greater, result);
/// ```
#[derive(Clone, Copy, PartialEq, Eq, Debug, Hash)]
#[derive(Clone, Copy, Eq, Debug, Hash)]
#[stable(feature = "rust1", since = "1.0.0")]
#[repr(i8)]
pub enum Ordering {
Expand Down Expand Up @@ -884,6 +885,18 @@ pub macro Ord($item:item) {
/* compiler built-in */
}

#[stable(feature = "rust1", since = "1.0.0")]
impl StructuralPartialEq for Ordering {}

#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_const_unstable(feature = "const_cmp", issue = "92391")]
impl const PartialEq for Ordering {
#[inline]
fn eq(&self, other: &Self) -> bool {
(*self as i32).eq(&(*other as i32))
}
}

#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_const_unstable(feature = "const_cmp", issue = "92391")]
impl const Ord for Ordering {
Expand Down