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/Rust

Struct std::ops::RangeToInclusive

pub struct RangeToInclusive<Idx> {
    pub end: Idx,
}

A range only bounded inclusively above (..=end).

The RangeToInclusive ..=end contains all values with x <= end. It cannot serve as an Iterator because it doesn't have a starting point.

Examples

The ..=end syntax is a RangeToInclusive:

assert_eq!((..=5), std::ops::RangeToInclusive{ end: 5 });

It does not have an IntoIterator implementation, so you can't use it in a for loop directly. This won't compile:

ⓘThis example deliberately fails to compile
// error[E0277]: the trait bound `std::ops::RangeToInclusive<{integer}>:
// std::iter::Iterator` is not satisfied
for i in ..=5 {
    // ...
}

When used as a slicing index, RangeToInclusive produces a slice of all array elements up to and including the index indicated by end.

let arr = [0, 1, 2, 3];
assert_eq!(arr[ ..=2], [0,1,2  ]);  // RangeToInclusive
assert_eq!(arr[1..=2], [  1,2  ]);

Fields

The upper bound of the range (inclusive)

Methods

impl<Idx> RangeToInclusive<Idx> where
    Idx: PartialOrd<Idx>, 
[src]

🔬 This is a nightly-only experimental API. (range_contains #32311)recently added as per RFC

Returns true if item is contained in the range.

Examples

#![feature(range_contains)]

use std::f32;

assert!( (..=5).contains(&-1_000_000_000));
assert!( (..=5).contains(&5));
assert!(!(..=5).contains(&6));

assert!( (..=1.0).contains(&1.0));
assert!(!(..=1.0).contains(&f32::NAN));
assert!(!(..=f32::NAN).contains(&0.5));

Trait Implementations

impl<T> SliceIndex<[T]> for RangeToInclusive<usize> [src]

The output type returned by methods.

🔬 This is a nightly-only experimental API. (slice_index_methods)

Returns a shared reference to the output at this location, if in bounds. Read more

🔬 This is a nightly-only experimental API. (slice_index_methods)

Returns a mutable reference to the output at this location, if in bounds. Read more

ⓘImportant traits for &'a [u8]
impl<'a> Read for &'a [u8]
impl<'a> Write for &'a mut [u8]
🔬 This is a nightly-only experimental API. (slice_index_methods)

Returns a shared reference to the output at this location, without performing any bounds checking. Read more

ⓘImportant traits for &'a [u8]
impl<'a> Read for &'a [u8]
impl<'a> Write for &'a mut [u8]
🔬 This is a nightly-only experimental API. (slice_index_methods)

Returns a mutable reference to the output at this location, without performing any bounds checking. Read more

ⓘImportant traits for &'a [u8]
impl<'a> Read for &'a [u8]
impl<'a> Write for &'a mut [u8]
🔬 This is a nightly-only experimental API. (slice_index_methods)

Returns a shared reference to the output at this location, panicking if out of bounds. Read more

ⓘImportant traits for &'a [u8]
impl<'a> Read for &'a [u8]
impl<'a> Write for &'a mut [u8]
🔬 This is a nightly-only experimental API. (slice_index_methods)

Returns a mutable reference to the output at this location, panicking if out of bounds. Read more

impl SliceIndex<str> for RangeToInclusive<usize> [src]

The output type returned by methods.

🔬 This is a nightly-only experimental API. (slice_index_methods)

Returns a shared reference to the output at this location, if in bounds. Read more

🔬 This is a nightly-only experimental API. (slice_index_methods)

Returns a mutable reference to the output at this location, if in bounds. Read more

🔬 This is a nightly-only experimental API. (slice_index_methods)

Returns a shared reference to the output at this location, without performing any bounds checking. Read more

🔬 This is a nightly-only experimental API. (slice_index_methods)

Returns a mutable reference to the output at this location, without performing any bounds checking. Read more

🔬 This is a nightly-only experimental API. (slice_index_methods)

Returns a shared reference to the output at this location, panicking if out of bounds. Read more

🔬 This is a nightly-only experimental API. (slice_index_methods)

Returns a mutable reference to the output at this location, panicking if out of bounds. Read more

impl<Idx> Hash for RangeToInclusive<Idx> where
    Idx: Hash
[src]

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

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

impl<Idx> Clone for RangeToInclusive<Idx> where
    Idx: Clone
[src]

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

impl IndexMut<RangeToInclusive<usize>> for str [src]

Performs the mutable indexing (container[index]) operation.

impl Index<RangeToInclusive<usize>> for str [src]

The returned type after indexing.

Performs the indexing (container[index]) operation.

impl<Idx> Debug for RangeToInclusive<Idx> where
    Idx: Debug
[src]

Formats the value using the given formatter. Read more

impl<Idx> Eq for RangeToInclusive<Idx> where
    Idx: Eq
[src]

impl<Idx> PartialEq<RangeToInclusive<Idx>> for RangeToInclusive<Idx> where
    Idx: PartialEq<Idx>, 
[src]

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

This method tests for !=.

impl<Idx> Copy for RangeToInclusive<Idx> where
    Idx: Copy
[src]

impl<T> RangeBounds<T> for RangeToInclusive<T> [src]
1.28.0

Start index bound. Read more

End index bound. Read more

🔬 This is a nightly-only experimental API. (range_contains #32311)recently added as per RFC

Returns true if item is contained in the range. Read more

impl<'a, T> RangeBounds<T> for RangeToInclusive<&'a T> [src]
1.28.0

Start index bound. Read more

End index bound. Read more

🔬 This is a nightly-only experimental API. (range_contains #32311)recently added as per RFC

Returns true if item is contained in the range. Read more

impl IndexMut<RangeToInclusive<usize>> for String [src]

Performs the mutable indexing (container[index]) operation.

impl Index<RangeToInclusive<usize>> for String [src]

The returned type after indexing.

Performs the indexing (container[index]) operation.

Auto Trait Implementations

impl<Idx> Send for RangeToInclusive<Idx> where
    Idx: Send

impl<Idx> Sync for RangeToInclusive<Idx> where
    Idx: Sync

Blanket Implementations

impl<T, U> TryFrom for T where
    T: From<U>, 
[src]

🔬 This is a nightly-only experimental API. (try_from #33417)

The type returned in the event of a conversion error.

🔬 This is a nightly-only experimental API. (try_from #33417)

Performs the conversion.

impl<T> From for T [src]

Performs the conversion.

impl<T, U> TryInto for T where
    U: TryFrom<T>, 
[src]

🔬 This is a nightly-only experimental API. (try_from #33417)

The type returned in the event of a conversion error.

🔬 This is a nightly-only experimental API. (try_from #33417)

Performs the conversion.

impl<T, U> Into for T where
    U: From<T>, 
[src]

Performs the conversion.

impl<T> Borrow for T where
    T: ?Sized
[src]

ⓘImportant traits for &'a mut I
impl<'a, I> Iterator for &'a mut I where
    I: Iterator + ?Sized, 
    type Item = <I as Iterator>::Item;
impl<'a, R: Read + ?Sized> Read for &'a mut R
impl<'a, W: Write + ?Sized> Write for &'a mut W

Immutably borrows from an owned value. Read more

impl<T> BorrowMut for T where
    T: ?Sized
[src]

ⓘImportant traits for &'a mut I
impl<'a, I> Iterator for &'a mut I where
    I: Iterator + ?Sized, 
    type Item = <I as Iterator>::Item;
impl<'a, R: Read + ?Sized> Read for &'a mut R
impl<'a, W: Write + ?Sized> Write for &'a mut W

Mutably borrows from an owned value. Read more

impl<T> Any for T where
    T: 'static + ?Sized
[src]

🔬 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]

Creates owned data from borrowed data, usually by cloning. Read more

🔬 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

© 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/struct.RangeToInclusive.html