Struct core::cmp::Reverse 1.19.0[−][src]
#[repr(transparent)]pub struct Reverse<T>(pub T);
A helper struct for reverse ordering.
This struct is a helper to be used with functions like Vec::sort_by_key
and
can be used to reverse order a part of a key.
Examples
use std::cmp::Reverse; let mut v = vec![1, 2, 3, 4, 5, 6]; v.sort_by_key(|&num| (num > 3, Reverse(num))); assert_eq!(v, vec![3, 2, 1, 6, 5, 4]);Run
Trait Implementations
impl<T: Clone> Clone for Reverse<T>
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impl<T: Clone> Clone for Reverse<T>
[src]fn clone(&self) -> Reverse<T>
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fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl<T: PartialOrd> PartialOrd<Reverse<T>> for Reverse<T>
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impl<T: PartialOrd> PartialOrd<Reverse<T>> for Reverse<T>
[src]impl<T: Copy> Copy for Reverse<T>
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impl<T: Eq> Eq for Reverse<T>
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impl<T> StructuralEq for Reverse<T>
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impl<T> StructuralPartialEq for Reverse<T>
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Auto Trait Implementations
impl<T> Send for Reverse<T> where
T: Send,
T: Send,
impl<T> Sync for Reverse<T> where
T: Sync,
T: Sync,
impl<T> Unpin for Reverse<T> where
T: Unpin,
T: Unpin,