1.19.0[−][src]Struct core::cmp::Reverse  
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.
Example usage:
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: PartialEq> PartialEq for Reverse<T>[src] 
impl<T: PartialEq> PartialEq for Reverse<T>fn eq(&self, other: &Reverse<T>) -> bool[src] 
fn eq(&self, other: &Reverse<T>) -> boolThis method tests for self and other values to be equal, and is used by ==. Read more
fn ne(&self, other: &Reverse<T>) -> bool[src] 
fn ne(&self, other: &Reverse<T>) -> boolThis method tests for !=.
impl<T: Eq> Eq for Reverse<T>[src] 
impl<T: Eq> Eq for Reverse<T>impl<T: Debug> Debug for Reverse<T>[src] 
impl<T: Debug> Debug for Reverse<T>fn fmt(&self, f: &mut Formatter) -> Result[src] 
fn fmt(&self, f: &mut Formatter) -> ResultFormats the value using the given formatter. Read more
impl<T: Copy> Copy for Reverse<T>[src] 
impl<T: Copy> Copy for Reverse<T>impl<T: Clone> Clone for Reverse<T>[src] 
impl<T: Clone> Clone for Reverse<T>fn clone(&self) -> Reverse<T>[src] 
fn clone(&self) -> Reverse<T>Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)1.0.0[src] 
fn clone_from(&mut self, source: &Self)Performs copy-assignment from source. Read more
impl<T: Default> Default for Reverse<T>[src] 
impl<T: Default> Default for Reverse<T>impl<T: Hash> Hash for Reverse<T>[src] 
impl<T: Hash> Hash for Reverse<T>fn hash<__HT: Hasher>(&self, state: &mut __HT)[src] 
fn hash<__HT: Hasher>(&self, state: &mut __HT)Feeds this value into the given [Hasher]. Read more
fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where
    Self: Sized, 1.3.0[src] 
fn hash_slice<H: Hasher>(data: &[Self], state: &mut H) where
    Self: Sized, Feeds a slice of this type into the given [Hasher]. Read more
impl<T: PartialOrd> PartialOrd for Reverse<T>[src] 
impl<T: PartialOrd> PartialOrd for Reverse<T>fn partial_cmp(&self, other: &Reverse<T>) -> Option<Ordering>[src] 
fn partial_cmp(&self, other: &Reverse<T>) -> Option<Ordering>This method returns an ordering between self and other values if one exists. Read more
fn lt(&self, other: &Self) -> bool[src] 
fn lt(&self, other: &Self) -> boolThis method tests less than (for self and other) and is used by the < operator. Read more
fn le(&self, other: &Self) -> bool[src] 
fn le(&self, other: &Self) -> boolThis method tests less than or equal to (for self and other) and is used by the <= operator. Read more
fn ge(&self, other: &Self) -> bool[src] 
fn ge(&self, other: &Self) -> boolThis method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
fn gt(&self, other: &Self) -> bool[src] 
fn gt(&self, other: &Self) -> boolThis method tests greater than (for self and other) and is used by the > operator. Read more
impl<T: Ord> Ord for Reverse<T>[src] 
impl<T: Ord> Ord for Reverse<T>fn cmp(&self, other: &Reverse<T>) -> Ordering[src] 
fn cmp(&self, other: &Reverse<T>) -> OrderingThis method returns an Ordering between self and other. Read more
fn max(self, other: Self) -> Self where
    Self: Sized, 1.21.0[src] 
fn max(self, other: Self) -> Self where
    Self: Sized, Compares and returns the maximum of two values. Read more
fn min(self, other: Self) -> Self where
    Self: Sized, 1.21.0[src] 
fn min(self, other: Self) -> Self where
    Self: Sized, Compares and returns the minimum of two values. Read more
Auto Trait Implementations
Blanket Implementations
impl<T, U> Into for T where
    U: From<T>, [src] 
impl<T, U> Into for T where
    U: From<T>, impl<T> From for T[src] 
impl<T> From for Timpl<T, U> TryInto for T where
    U: TryFrom<T>, [src] 
impl<T, U> TryInto for T where
    U: TryFrom<T>, type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(Self) -> Result<U, <U as TryFrom<T>>::Error>[src] 
fn try_into(Self) -> Result<U, <U as TryFrom<T>>::Error>Performs the conversion.
impl<T, U> TryFrom for T where
    T: From<U>, [src] 
impl<T, U> TryFrom for T where
    T: From<U>, type Error = !
The type returned in the event of a conversion error.
fn try_from(U) -> Result<T, <T as TryFrom<U>>::Error>[src] 
fn try_from(U) -> Result<T, <T as TryFrom<U>>::Error>Performs the conversion.
impl<T> Borrow for T where
    T: ?Sized, [src] 
impl<T> Borrow for T where
    T: ?Sized, impl<T> BorrowMut for T where
    T: ?Sized, [src] 
impl<T> BorrowMut for T where
    T: ?Sized, fn borrow_mut(&mut Self) -> &mut T[src] 
fn borrow_mut(&mut Self) -> &mut TMutably borrows from an owned value. Read more
impl<T> Any for T where
    T: 'static + ?Sized, [src] 
impl<T> Any for T where
    T: 'static + ?Sized, fn get_type_id(&Self) -> TypeId[src] 
fn get_type_id(&Self) -> TypeId🔬 This is a nightly-only experimental API.  (get_type_id #27745)
this method will likely be replaced by an associated static
Gets the TypeId of self. Read more