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Stabilize cmp::Reverse

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Closes #40893
This commit is contained in:
Steven Fackler 2017-06-08 11:34:22 -04:00
parent 14c2f99f80
commit 05cbdb1bad
1 changed files with 3 additions and 4 deletions
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7
src/libcore/cmp.rs
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@ -335,7 +335,6 @@ pub fn then_with<F: FnOnce() -> Ordering>(self, f: F) -> Ordering {
/// Example usage:
///
/// ```
/// #![feature(reverse_cmp_key)]
/// use std::cmp::Reverse;
///
/// let mut v = vec![1, 2, 3, 4, 5, 6];
@ -343,10 +342,10 @@ pub fn then_with<F: FnOnce() -> Ordering>(self, f: F) -> Ordering {
/// assert_eq!(v, vec![3, 2, 1, 6, 5, 4]);
/// ```
#[derive(PartialEq, Eq, Debug)]
#[unstable(feature = "reverse_cmp_key", issue = "40893")]
#[stable(feature = "reverse_cmp_key", since = "1.19.0")]
pub struct Reverse<T>(pub T);
#[unstable(feature = "reverse_cmp_key", issue = "40893")]
#[stable(feature = "reverse_cmp_key", since = "1.19.0")]
impl<T: PartialOrd> PartialOrd for Reverse<T> {
#[inline]
fn partial_cmp(&self, other: &Reverse<T>) -> Option<Ordering> {
@ -363,7 +362,7 @@ fn ge(&self, other: &Self) -> bool { other.0 >= self.0 }
fn gt(&self, other: &Self) -> bool { other.0 > self.0 }
}
#[unstable(feature = "reverse_cmp_key", issue = "40893")]
#[stable(feature = "reverse_cmp_key", since = "1.19.0")]
impl<T: Ord> Ord for Reverse<T> {
#[inline]
fn cmp(&self, other: &Reverse<T>) -> Ordering {