1.17.0[−][src]Enum core::ops::Bound  
An endpoint of a range of keys.
Examples
Bounds are range endpoints:
use std::ops::Bound::*; use std::ops::RangeBounds; assert_eq!((..100).start_bound(), Unbounded); assert_eq!((1..12).start_bound(), Included(&1)); assert_eq!((1..12).end_bound(), Excluded(&12));Run
Using a tuple of Bounds as an argument to BTreeMap::range.
Note that in most cases, it's better to use range syntax (1..5) instead.
use std::collections::BTreeMap; use std::ops::Bound::{Excluded, Included, Unbounded}; let mut map = BTreeMap::new(); map.insert(3, "a"); map.insert(5, "b"); map.insert(8, "c"); for (key, value) in map.range((Excluded(3), Included(8))) { println!("{}: {}", key, value); } assert_eq!(Some((&3, &"a")), map.range((Unbounded, Included(5))).next());Run
Variants
Included(T)An inclusive bound.
Excluded(T)An exclusive bound.
UnboundedAn infinite endpoint. Indicates that there is no bound in this direction.
Trait Implementations
impl<T: Clone> Clone for Bound<T>[src] 
impl<T: Clone> Clone for Bound<T>fn clone(&self) -> Bound<T>[src] 
fn clone(&self) -> Bound<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: Copy> Copy for Bound<T>[src] 
impl<T: Copy> Copy for Bound<T>impl<T: Debug> Debug for Bound<T>[src] 
impl<T: Debug> Debug for Bound<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: Hash> Hash for Bound<T>[src] 
impl<T: Hash> Hash for Bound<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: PartialEq> PartialEq for Bound<T>[src] 
impl<T: PartialEq> PartialEq for Bound<T>fn eq(&self, other: &Bound<T>) -> bool[src] 
fn eq(&self, other: &Bound<T>) -> boolThis method tests for self and other values to be equal, and is used by ==. Read more
fn ne(&self, other: &Bound<T>) -> bool[src] 
fn ne(&self, other: &Bound<T>) -> boolThis method tests for !=.
impl<T: Eq> Eq for Bound<T>[src] 
impl<T: Eq> Eq for Bound<T>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