pub enum Bound<T> {
Included(T),
Excluded(T),
Unbounded,
}
An endpoint of a range of keys.
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));
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());Included(T)
An inclusive bound.
Excluded(T)
An exclusive bound.
Unbounded
An infinite endpoint. Indicates that there is no bound in this direction.
impl<'_, T> Bound<&'_ T> where
T: Clone, [src]
pub fn cloned(self) -> Bound<T>[src]
Map a Bound<&T> to a Bound<T> by cloning the contents of the bound.
#![feature(bound_cloned)] use std::ops::Bound::*; use std::ops::RangeBounds; assert_eq!((1..12).start_bound(), Included(&1)); assert_eq!((1..12).start_bound().cloned(), Included(1));
impl<T> Clone for Bound<T> where
T: Clone, [src]
impl<T> Copy for Bound<T> where
T: Copy, [src]
impl<T> Debug for Bound<T> where
T: Debug, [src]
impl<T> Eq for Bound<T> where
T: Eq, [src]
impl<T> Hash for Bound<T> where
T: Hash, [src]
fn hash<__H>(&self, state: &mut __H) where
__H: Hasher, [src]
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher, [src]1.3.0
impl<T> PartialEq<Bound<T>> for Bound<T> where
T: PartialEq<T>, [src]
impl<T> StructuralEq for Bound<T>[src]
impl<T> StructuralPartialEq for Bound<T>[src]
impl<T> RefUnwindSafe for Bound<T> where
T: RefUnwindSafe, impl<T> Send for Bound<T> where
T: Send, impl<T> Sync for Bound<T> where
T: Sync, impl<T> Unpin for Bound<T> where
T: Unpin, impl<T> UnwindSafe for Bound<T> where
T: UnwindSafe, impl<T> Any for T where
T: 'static + ?Sized, [src]
impl<T> Borrow<T> for T where
T: ?Sized, [src]
fn borrow(&self) -> &TⓘNotable traits for &'_ mut F
impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized,
type Output = <F as Future>::Output;
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized,
type Item = <I as Iterator>::Item;
impl<R: Read + ?Sized, '_> Read for &'_ mut R
impl<W: Write + ?Sized, '_> Write for &'_ mut W
[src]
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
fn borrow_mut(&mut self) -> &mut TⓘNotable traits for &'_ mut F
impl<'_, F> Future for &'_ mut F where
F: Unpin + Future + ?Sized,
type Output = <F as Future>::Output;
impl<'_, I> Iterator for &'_ mut I where
I: Iterator + ?Sized,
type Item = <I as Iterator>::Item;
impl<R: Read + ?Sized, '_> Read for &'_ mut R
impl<W: Write + ?Sized, '_> Write for &'_ mut W
[src]
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
impl<T> ToOwned for T where
T: Clone, [src]
type Owned = TThe resulting type after obtaining ownership.
fn to_owned(&self) -> T[src]
fn clone_into(&self, target: &mut T)[src]
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
type Error = InfallibleThe type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
© 2010 The Rust Project Developers
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/ops/enum.Bound.html