Enum core::ops::Bound1.17.0 [] [src]

pub enum Bound<T> {

An endpoint of a range of keys.


Bounds are range endpoints:


use std::ops::Bound::*;
use std::ops::RangeBounds;

assert_eq!((..100).start(), Unbounded);
assert_eq!((1..12).start(), Included(&1));
assert_eq!((1..12).end(), 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


An inclusive bound.

An exclusive bound.

An infinite endpoint. Indicates that there is no bound in this direction.

Trait Implementations

impl<T: Clone> Clone for Bound<T>

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

impl<T: Copy> Copy for Bound<T>

impl<T: Debug> Debug for Bound<T>

Formats the value using the given formatter. Read more

impl<T: Hash> Hash for Bound<T>

Feeds this value into the given [Hasher]. Read more

Feeds a slice of this type into the given [Hasher]. Read more

impl<T: PartialEq> PartialEq for Bound<T>

This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

impl<T: Eq> Eq for Bound<T>

Auto Trait Implementations

impl<T> Send for Bound<T> where
    T: Send

impl<T> Sync for Bound<T> where
    T: Sync