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Improved bounds for cmp::Reverse

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This commit is contained in:
Armin Ronacher 2017-03-22 14:16:41 +01:00
parent dabff15142
commit d005d91778
1 changed files with 6 additions and 6 deletions
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12
src/libcore/cmp.rs
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@ -337,19 +337,19 @@ impl Ordering {
/// assert_eq!(v, vec![3, 2, 1, 6, 5, 4]);
/// ```
#[derive(PartialEq, Eq, Debug)]
#[stable(feature = "rust1", since = "1.8.0")]
pub struct Reverse<T: Ord + PartialOrd + Eq + PartialEq>(pub T);
#[stable(feature = "rust1", since = "1.18.0")]
pub struct Reverse<T>(pub T);
#[stable(feature = "rust1", since = "1.8.0")]
impl<T: Ord + PartialOrd + Eq + PartialEq> PartialOrd for Reverse<T> {
#[stable(feature = "rust1", since = "1.18.0")]
impl<T: PartialOrd> PartialOrd for Reverse<T> {
#[inline]
fn partial_cmp(&self, other: &Reverse<T>) -> Option<Ordering> {
other.0.partial_cmp(&self.0)
}
}
#[stable(feature = "rust1", since = "1.8.0")]
impl<T: Ord + PartialOrd + Eq + PartialEq> Ord for Reverse<T> {
#[stable(feature = "rust1", since = "1.18.0")]
impl<T: Ord> Ord for Reverse<T> {
#[inline]
fn cmp(&self, other: &Reverse<T>) -> Ordering {
other.0.cmp(&self.0)