Struct std::ops::RangeToInclusive

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

🔬 This is a nightly-only experimental API. (inclusive_range #28237)

recently added, follows RFC

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:

#![feature(inclusive_range,inclusive_range_syntax)]
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:

#![feature(inclusive_range_syntax)]

// 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.

#![feature(inclusive_range_syntax)]

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

Fields

end: Idx

🔬 This is a nightly-only experimental API. (inclusive_range #28237)

recently added, follows RFC

The upper bound of the range (inclusive)

Methods

impl<Idx> RangeToInclusive<Idx> where
    Idx: PartialOrd<Idx>, 

pub fn contains(&self, item: Idx) -> bool

🔬 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,inclusive_range_syntax)]

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

Trait Implementations

impl IndexMut<RangeToInclusive<usize>> for str

fn index_mut(&mut self, index: RangeToInclusive<usize>) -> &mut str

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

impl Index<RangeToInclusive<usize>> for str

type Output = str

The returned type after indexing.

fn index(&self, index: RangeToInclusive<usize>) -> &str

Performs the indexing (container[index]) operation.

impl<Idx> Debug for RangeToInclusive<Idx> where
    Idx: Debug, 

fn fmt(&self, fmt: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.

impl<Idx> Hash for RangeToInclusive<Idx> where
    Idx: Hash, 

fn hash<__HIdx>(&self, __arg_0: &mut __HIdx) where
    __HIdx: Hasher, 

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

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

impl<Idx> Clone for RangeToInclusive<Idx> where
    Idx: Clone, 

fn clone(&self) -> RangeToInclusive<Idx>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<Idx> Eq for RangeToInclusive<Idx> where
    Idx: Eq, 

impl<Idx> PartialEq<RangeToInclusive<Idx>> for RangeToInclusive<Idx> where
    Idx: PartialEq<Idx>, 

fn eq(&self, __arg_0: &RangeToInclusive<Idx>) -> bool

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

fn ne(&self, __arg_0: &RangeToInclusive<Idx>) -> bool

This method tests for !=.

impl<Idx> Copy for RangeToInclusive<Idx> where
    Idx: Copy, 

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

type Output = [T]

🔬 This is a nightly-only experimental API. (slice_get_slice #35729)

The output type returned by methods.

fn get(self, slice: &[T]) -> Option<&[T]>

🔬 This is a nightly-only experimental API. (slice_get_slice #35729)

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

fn get_mut(self, slice: &mut [T]) -> Option<&mut [T]>

🔬 This is a nightly-only experimental API. (slice_get_slice #35729)

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

Important traits for &'a [u8]

impl<'a> Read for &'a [u8]impl<'a> Write for &'a mut [u8]

unsafe fn get_unchecked(self, slice: &[T]) -> &[T]

🔬 This is a nightly-only experimental API. (slice_get_slice #35729)

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

Important traits for &'a [u8]

impl<'a> Read for &'a [u8]impl<'a> Write for &'a mut [u8]

unsafe fn get_unchecked_mut(self, slice: &mut [T]) -> &mut [T]

🔬 This is a nightly-only experimental API. (slice_get_slice #35729)

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

Important traits for &'a [u8]

impl<'a> Read for &'a [u8]impl<'a> Write for &'a mut [u8]

fn index(self, slice: &[T]) -> &[T]

🔬 This is a nightly-only experimental API. (slice_get_slice #35729)

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

Important traits for &'a [u8]

impl<'a> Read for &'a [u8]impl<'a> Write for &'a mut [u8]

fn index_mut(self, slice: &mut [T]) -> &mut [T]

🔬 This is a nightly-only experimental API. (slice_get_slice #35729)

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

impl SliceIndex<str> for RangeToInclusive<usize>

type Output = str

🔬 This is a nightly-only experimental API. (slice_get_slice #35729)

The output type returned by methods.

fn get(
    self,
    slice: &str
) -> Option<&<RangeToInclusive<usize> as SliceIndex<str>>::Output>

🔬 This is a nightly-only experimental API. (slice_get_slice #35729)

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

fn get_mut(
    self,
    slice: &mut str
) -> Option<&mut <RangeToInclusive<usize> as SliceIndex<str>>::Output>

🔬 This is a nightly-only experimental API. (slice_get_slice #35729)

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

unsafe fn get_unchecked(
    self,
    slice: &str
) -> &<RangeToInclusive<usize> as SliceIndex<str>>::Output

🔬 This is a nightly-only experimental API. (slice_get_slice #35729)

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

unsafe fn get_unchecked_mut(
    self,
    slice: &mut str
) -> &mut <RangeToInclusive<usize> as SliceIndex<str>>::Output

🔬 This is a nightly-only experimental API. (slice_get_slice #35729)

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

fn index(
    self,
    slice: &str
) -> &<RangeToInclusive<usize> as SliceIndex<str>>::Output

🔬 This is a nightly-only experimental API. (slice_get_slice #35729)

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

fn index_mut(
    self,
    slice: &mut str
) -> &mut <RangeToInclusive<usize> as SliceIndex<str>>::Output

🔬 This is a nightly-only experimental API. (slice_get_slice #35729)

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

impl IndexMut<RangeToInclusive<usize>> for String

fn index_mut(&mut self, index: RangeToInclusive<usize>) -> &mut str

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

impl<T> IndexMut<RangeToInclusive<usize>> for Vec<T>

Important traits for &'a [u8]

impl<'a> Read for &'a [u8]impl<'a> Write for &'a mut [u8]

fn index_mut(&mut self, index: RangeToInclusive<usize>) -> &mut [T]

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

impl<T> Index<RangeToInclusive<usize>> for Vec<T>

type Output = [T]

The returned type after indexing.

Important traits for &'a [u8]

impl<'a> Read for &'a [u8]impl<'a> Write for &'a mut [u8]

fn index(&self, index: RangeToInclusive<usize>) -> &[T]

Performs the indexing (container[index]) operation.

impl Index<RangeToInclusive<usize>> for String

type Output = str

The returned type after indexing.

fn index(&self, index: RangeToInclusive<usize>) -> &str

Performs the indexing (container[index]) operation.

impl<T> RangeArgument<T> for RangeToInclusive<T>

fn start(&self) -> Bound<&T>

🔬 This is a nightly-only experimental API. (collections_range #30877)

waiting for dust to settle on inclusive ranges

Start index bound.

fn end(&self) -> Bound<&T>

🔬 This is a nightly-only experimental API. (collections_range #30877)

waiting for dust to settle on inclusive ranges

End index bound.