1.17.0[−][src]Enum std::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> PartialEq<Bound<T>> for Bound<T> where
    T: PartialEq<T>, [src] 
impl<T> PartialEq<Bound<T>> for Bound<T> where
    T: PartialEq<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> Hash for Bound<T> where
    T: Hash, [src] 
impl<T> Hash for Bound<T> where
    T: Hash, fn hash<__HT>(&self, state: &mut __HT) where
    __HT: Hasher, [src] 
fn hash<__HT>(&self, state: &mut __HT) where
    __HT: Hasher, Feeds this value into the given [Hasher]. Read more
fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 1.3.0[src] 
fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, Feeds a slice of this type into the given [Hasher]. Read more
impl<T> Debug for Bound<T> where
    T: Debug, [src] 
impl<T> Debug for Bound<T> where
    T: Debug, fn fmt(&self, f: &mut Formatter) -> Result<(), Error>[src] 
fn fmt(&self, f: &mut Formatter) -> Result<(), Error>Formats the value using the given formatter. Read more
impl<T> Copy for Bound<T> where
    T: Copy, [src] 
impl<T> Copy for Bound<T> where
    T: Copy, impl<T> Eq for Bound<T> where
    T: Eq, [src] 
impl<T> Eq for Bound<T> where
    T: Eq, impl<T> Clone for Bound<T> where
    T: Clone, [src] 
impl<T> Clone for Bound<T> where
    T: Clone, Auto Trait Implementations
Blanket Implementations
impl<T> From for T[src] 
impl<T> From for Timpl<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(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src] 
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>Performs the conversion.
impl<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> Into for T where
    U: From<T>, [src] 
impl<T, U> Into for T where
    U: From<T>, impl<T> Borrow for T where
    T: ?Sized, [src] 
impl<T> Borrow for T where
    T: ?Sized, ⓘImportant traits for &'a mut Ifn borrow(&self) -> &T[src] 
fn borrow(&self) -> &TImmutably borrows from an owned value. Read more
impl<T> BorrowMut for T where
    T: ?Sized, [src] 
impl<T> BorrowMut for T where
    T: ?Sized, ⓘImportant traits for &'a mut Ifn 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
impl<T> ToOwned for T where
    T: Clone, [src] 
impl<T> ToOwned for T where
    T: Clone, type Owned = T
fn to_owned(&self) -> T[src] 
fn to_owned(&self) -> TCreates owned data from borrowed data, usually by cloning. Read more
fn clone_into(&self, target: &mut T)[src] 
fn clone_into(&self, target: &mut T)🔬 This is a nightly-only experimental API.  (toowned_clone_into #41263)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more