Struct std::ops::RangeToInclusive

[+] Show type declaration

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

[−] Expand description

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:

// 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

end: Idx

[−] Expand description

The upper bound of the range (inclusive)

Methods

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

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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)]

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

Trait Implementations

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

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

[+]

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

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Formats the value using the given formatter.

impl Index<RangeToInclusive<usize>> for str

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type Output = str

The returned type after indexing.

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

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Performs the indexing (container[index]) operation.

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

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

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Feeds this value into the given [Hasher].

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

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

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

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

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

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

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This method tests for !=.

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>

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

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

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Returns a copy of the value.

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

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Performs copy-assignment from source.

impl IndexMut<RangeToInclusive<usize>> for str

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

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

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

impl<T> RangeBounds<T> for RangeToInclusive<T>

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

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

might be replaced with Into<_> and a type containing two Bound values

Start index bound.

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

[−]

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

might be replaced with Into<_> and a type containing two Bound values

End index bound.

impl<'a, T> RangeBounds<T> for RangeToInclusive<&'a T>

[+]

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

[−]

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

might be replaced with Into<_> and a type containing two Bound values

Start index bound.

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

[−]

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

might be replaced with Into<_> and a type containing two Bound values

End index bound.

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 IndexMut<RangeToInclusive<usize>> for String

[+]

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

[−]

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