pub enum RangeInclusive<Idx> {
Empty {
at: Idx,
},
NonEmpty {
start: Idx,
end: Idx,
},
}
Unstable (inclusive_range
#28237): recently added, follows RFC
An inclusive range which is bounded at both ends: { x | start <= x <= end }.
Use start...end
(three dots) for its shorthand.
See the contains()
method for its characterization.
#![feature(inclusive_range,inclusive_range_syntax,iter_arith)]
fn main() {
assert_eq!((3...5), std::ops::RangeInclusive::NonEmpty{ start: 3, end: 5 });
assert_eq!(3+4+5, (3...5).sum());
let arr = [0, 1, 2, 3];
assert_eq!(arr[ ...2], [0,1,2 ]);
assert_eq!(arr[1...2], [ 1,2 ]); // RangeInclusive
}
#![feature(inclusive_range,inclusive_range_syntax,iter_arith)]
fn main() {
assert_eq!((3...5), std::ops::RangeInclusive::NonEmpty{ start: 3, end: 5 });
assert_eq!(3+4+5, (3...5).sum());
let arr = [0, 1, 2, 3];
assert_eq!(arr[ ...2], [0,1,2 ]);
assert_eq!(arr[1...2], [ 1,2 ]);
}
Variants
Empty | Unstable (inclusive_range #28237): recently added, follows RFC
Empty range (iteration has finished)
Fields
at | Unstable (inclusive_range #28237): recently added, follows RFC
The point at which iteration finished
|
| |
NonEmpty | Unstable (inclusive_range #28237): recently added, follows RFC
Non-empty range (iteration will yield value(s))
Fields
start | Unstable (inclusive_range #28237): recently added, follows RFC
The lower bound of the range (inclusive).
| end | Unstable (inclusive_range #28237): recently added, follows RFC
The upper bound of the range (inclusive).
|
| |
Methods
fn contains(&self, item: Idx) -> bool
Unstable (range_contains
#32311): recently added as per RFC
#![feature(range_contains,inclusive_range_syntax)]
fn main() {
assert!( ! (3...5).contains(2));
assert!( (3...5).contains(3));
assert!( (3...5).contains(4));
assert!( (3...5).contains(5));
assert!( ! (3...5).contains(6));
assert!( (3...3).contains(3));
assert!( ! (3...2).contains(3));
}
#![feature(range_contains,inclusive_range_syntax)]
fn main() {
assert!( ! (3...5).contains(2));
assert!( (3...5).contains(3));
assert!( (3...5).contains(4));
assert!( (3...5).contains(5));
assert!( ! (3...5).contains(6));
assert!( (3...3).contains(3));
assert!( ! (3...2).contains(3));
}
fn step_by(self, by: A) -> StepBy<A, Self>
Unstable (step_by
#27741): recent addition
Creates an iterator with the same range, but stepping by the
given amount at each iteration.
The resulting iterator handles overflow by stopping.
#![feature(step_by, inclusive_range_syntax)]
fn main() {
for i in (0...10).step_by(2) {
println!("{}", i);
}
}
#![feature(step_by, inclusive_range_syntax)]
for i in (0...10).step_by(2) {
println!("{}", i);
}
This prints:
0
2
4
6
8
10
Trait Implementations
Unstable (inclusive_range
#28237): recently added, follows RFC
Unstable (inclusive_range
#28237): recently added, follows RFC
fn len(&self) -> usize
1.0.0
fn len(&self) -> usize
1.0.0
fn len(&self) -> usize
1.0.0
fn len(&self) -> usize
1.0.0
fn len(&self) -> usize
1.0.0
fn len(&self) -> usize
1.0.0
fn len(&self) -> usize
1.0.0
fn len(&self) -> usize
1.0.0
type Item = A
Unstable (inclusive_range
#28237): recently added, follows RFC
fn next(&mut self) -> Option<A>
Unstable (inclusive_range
#28237): recently added, follows RFC
Unstable (inclusive_range
#28237): recently added, follows RFC
fn count(self) -> usize where Self: Sized
1.0.0
fn last(self) -> Option<Self::Item> where Self: Sized
1.0.0
fn nth(&mut self, n: usize) -> Option<Self::Item> where Self: Sized
1.0.0
fn chain<U>(self, other: U) -> Chain<Self, U::IntoIter> where Self: Sized, U: IntoIterator<Item=Self::Item>
1.0.0
fn zip<U>(self, other: U) -> Zip<Self, U::IntoIter> where Self: Sized, U: IntoIterator
1.0.0
fn map<B, F>(self, f: F) -> Map<Self, F> where Self: Sized, F: FnMut(Self::Item) -> B
1.0.0
fn filter<P>(self, predicate: P) -> Filter<Self, P> where Self: Sized, P: FnMut(&Self::Item) -> bool
1.0.0
fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P> where Self: Sized, P: FnMut(&Self::Item) -> bool
1.0.0
fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P> where Self: Sized, P: FnMut(&Self::Item) -> bool
1.0.0
fn skip(self, n: usize) -> Skip<Self> where Self: Sized
1.0.0
fn take(self, n: usize) -> Take<Self> where Self: Sized
1.0.0
fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F> where Self: Sized, F: FnMut(&mut St, Self::Item) -> Option<B>
1.0.0
fn fuse(self) -> Fuse<Self> where Self: Sized
1.0.0
fn inspect<F>(self, f: F) -> Inspect<Self, F> where Self: Sized, F: FnMut(&Self::Item)
1.0.0
fn by_ref(&mut self) -> &mut Self where Self: Sized
1.0.0
fn partition<B, F>(self, f: F) -> (B, B) where Self: Sized, B: Default + Extend<Self::Item>, F: FnMut(&Self::Item) -> bool
1.0.0
fn fold<B, F>(self, init: B, f: F) -> B where Self: Sized, F: FnMut(B, Self::Item) -> B
1.0.0
fn all<F>(&mut self, f: F) -> bool where Self: Sized, F: FnMut(Self::Item) -> bool
1.0.0
fn any<F>(&mut self, f: F) -> bool where Self: Sized, F: FnMut(Self::Item) -> bool
1.0.0
fn find<P>(&mut self, predicate: P) -> Option<Self::Item> where Self: Sized, P: FnMut(&Self::Item) -> bool
1.0.0
fn position<P>(&mut self, predicate: P) -> Option<usize> where Self: Sized, P: FnMut(Self::Item) -> bool
1.0.0
fn unzip<A, B, FromA, FromB>(self) -> (FromA, FromB) where FromA: Default + Extend<A>, FromB: Default + Extend<B>, Self: Sized + Iterator<Item=(A, B)>
1.0.0
fn cloned<'a, T: 'a>(self) -> Cloned<Self> where Self: Sized + Iterator<Item=&'a T>, T: Clone
1.0.0
fn sum<S>(self) -> S where S: Add<Self::Item, Output=S> + Zero, Self: Sized
fn product<P>(self) -> P where P: Mul<Self::Item, Output=P> + One, Self: Sized
fn eq<I>(self, other: I) -> bool where I: IntoIterator, Self::Item: PartialEq<I::Item>, Self: Sized
1.5.0
fn ne<I>(self, other: I) -> bool where I: IntoIterator, Self::Item: PartialEq<I::Item>, Self: Sized
1.5.0
fn lt<I>(self, other: I) -> bool where I: IntoIterator, Self::Item: PartialOrd<I::Item>, Self: Sized
1.5.0
fn le<I>(self, other: I) -> bool where I: IntoIterator, Self::Item: PartialOrd<I::Item>, Self: Sized
1.5.0
fn gt<I>(self, other: I) -> bool where I: IntoIterator, Self::Item: PartialOrd<I::Item>, Self: Sized
1.5.0
fn ge<I>(self, other: I) -> bool where I: IntoIterator, Self::Item: PartialOrd<I::Item>, Self: Sized
1.5.0
Unstable (inclusive_range
#28237): recently added, follows RFC
Derived Implementations
fn eq(&self, __arg_0: &RangeInclusive<Idx>) -> bool
Unstable (inclusive_range
#28237): recently added, follows RFC
fn ne(&self, __arg_0: &RangeInclusive<Idx>) -> bool
Unstable (inclusive_range
#28237): recently added, follows RFC
Unstable (inclusive_range
#28237): recently added, follows RFC
fn clone_from(&mut self, source: &Self)
1.0.0