# 1.28.0[−][src]Trait alloc::slice::SliceIndex

    pub trait SliceIndex<T>: Sealed where
        T: ?Sized, {
        type Output: ?Sized;
        fn get(self, slice: &T) -> Option<&Self::Output>;
        fn get_mut(self, slice: &mut T) -> Option<&mut Self::Output>;
        unsafe fn get_unchecked(self, slice: &T) -> &Self::Output;
        unsafe fn get_unchecked_mut(self, slice: &mut T) -> &mut Self::Output;
        fn index(self, slice: &T) -> &Self::Output;
        fn index_mut(self, slice: &mut T) -> &mut Self::Output;
    }

A helper trait used for indexing operations.

## Associated Types

### `type Output: ?Sized`

The output type returned by methods.

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## Required methods

### `fn get(self, slice: &T) -> Option<&Self::Output>`

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

### `fn get_mut(self, slice: &mut T) -> Option<&mut Self::Output>`

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

### `unsafe fn get_unchecked(self, slice: &T) -> &Self::Output`

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

### `unsafe fn get_unchecked_mut(self, slice: &mut T) -> &mut Self::Output`

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

### `fn index(self, slice: &T) -> &Self::Output`

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

### `fn index_mut(self, slice: &mut T) -> &mut Self::Output`

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

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## Implementations on Foreign Types

### `impl<T> SliceIndex<[T]> for RangeTo<usize>`[src]

#### `type Output = [T]`

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

#### `type Output = str`

#### `fn get(
self,
slice: &str
) -> Option<&<RangeToInclusive<usize> as SliceIndex<str>>::Output>`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

#### `unsafe fn get_unchecked(
self,
slice: &str
) -> &<RangeToInclusive<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

#### `fn index(
self,
slice: &str
) -> &<RangeToInclusive<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

#### `fn index_mut(
self,
slice: &mut str
) -> &mut <RangeToInclusive<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

### `impl<T> SliceIndex<[T]> for Range<usize>`[src]

#### `type Output = [T]`

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

### `impl SliceIndex<str> for RangeTo<usize>`[src]

#### `type Output = str`

#### `fn get(
self,
slice: &str
) -> Option<&<RangeTo<usize> as SliceIndex<str>>::Output>`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

#### `fn get_mut(
self,
slice: &mut str
) -> Option<&mut <RangeTo<usize> as SliceIndex<str>>::Output>`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

#### `unsafe fn get_unchecked(
self,
slice: &str
) -> &<RangeTo<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

#### `unsafe fn get_unchecked_mut(
self,
slice: &mut str
) -> &mut <RangeTo<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

#### `fn index(self, slice: &str) -> &<RangeTo<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

#### `fn index_mut(
self,
slice: &mut str
) -> &mut <RangeTo<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

### `impl SliceIndex<str> for RangeInclusive<usize>`[src]

#### `type Output = str`

#### `fn get(
self,
slice: &str
) -> Option<&<RangeInclusive<usize> as SliceIndex<str>>::Output>`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

#### `fn get_mut(
self,
slice: &mut str
) -> Option<&mut <RangeInclusive<usize> as SliceIndex<str>>::Output>`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

####
ⓘImportant traits for RangeInclusive<A>

### Important traits for RangeInclusive<A>

`impl<A> Iterator for RangeInclusive<A> where
A: Step, type Item = A;`
`unsafe fn get_unchecked(
self,
slice: &str
) -> &<RangeInclusive<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

####
ⓘImportant traits for RangeInclusive<A>

### Important traits for RangeInclusive<A>

`impl<A> Iterator for RangeInclusive<A> where
A: Step, type Item = A;`
`unsafe fn get_unchecked_mut(
self,
slice: &mut str
) -> &mut <RangeInclusive<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

####
ⓘImportant traits for RangeInclusive<A>

### Important traits for RangeInclusive<A>

`impl<A> Iterator for RangeInclusive<A> where
A: Step, type Item = A;`
`fn index(
self,
slice: &str
) -> &<RangeInclusive<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

####
ⓘImportant traits for RangeInclusive<A>

### Important traits for RangeInclusive<A>

`impl<A> Iterator for RangeInclusive<A> where
A: Step, type Item = A;`
`fn index_mut(
self,
slice: &mut str
) -> &mut <RangeInclusive<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

### `impl<T> SliceIndex<[T]> for RangeFull`[src]

#### `type Output = [T]`

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

#### `type Output = [T]`

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

### `impl SliceIndex<str> for RangeFull`[src]

#### `type Output = str`

#### `fn get(self, slice: &str) -> Option<&<RangeFull as SliceIndex<str>>::Output>`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

#### `fn get_mut(
self,
slice: &mut str
) -> Option<&mut <RangeFull as SliceIndex<str>>::Output>`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

#### `unsafe fn get_unchecked(
self,
slice: &str
) -> &<RangeFull as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

#### `unsafe fn get_unchecked_mut(
self,
slice: &mut str
) -> &mut <RangeFull as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

#### `fn index(self, slice: &str) -> &<RangeFull as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

#### `fn index_mut(
self,
slice: &mut str
) -> &mut <RangeFull as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

### `impl SliceIndex<str> for RangeFrom<usize>`[src]

#### `type Output = str`

#### `fn get(
self,
slice: &str
) -> Option<&<RangeFrom<usize> as SliceIndex<str>>::Output>`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

#### `fn get_mut(
self,
slice: &mut str
) -> Option<&mut <RangeFrom<usize> as SliceIndex<str>>::Output>`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

####
ⓘImportant traits for RangeFrom<A>

### Important traits for RangeFrom<A>

`impl<A> Iterator for RangeFrom<A> where
A: Step, type Item = A;`
`unsafe fn get_unchecked(
self,
slice: &str
) -> &<RangeFrom<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

####
ⓘImportant traits for RangeFrom<A>

### Important traits for RangeFrom<A>

`impl<A> Iterator for RangeFrom<A> where
A: Step, type Item = A;`
`unsafe fn get_unchecked_mut(
self,
slice: &mut str
) -> &mut <RangeFrom<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

####
ⓘImportant traits for RangeFrom<A>

### Important traits for RangeFrom<A>

`impl<A> Iterator for RangeFrom<A> where
A: Step, type Item = A;`
`fn index(self, slice: &str) -> &<RangeFrom<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

####
ⓘImportant traits for RangeFrom<A>

### Important traits for RangeFrom<A>

`impl<A> Iterator for RangeFrom<A> where
A: Step, type Item = A;`
`fn index_mut(
self,
slice: &mut str
) -> &mut <RangeFrom<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

### `impl<T> SliceIndex<[T]> for RangeInclusive<usize>`[src]

#### `type Output = [T]`

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

### `impl<T> SliceIndex<[T]> for RangeFrom<usize>`[src]

#### `type Output = [T]`

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

### `impl SliceIndex<str> for Range<usize>`[src]

#### `type Output = str`

#### `fn get(self, slice: &str) -> Option<&<Range<usize> as SliceIndex<str>>::Output>`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

#### `fn get_mut(
self,
slice: &mut str
) -> Option<&mut <Range<usize> as SliceIndex<str>>::Output>`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

####
ⓘImportant traits for Range<A>

### Important traits for Range<A>

`impl<A> Iterator for Range<A> where
A: Step, type Item = A;`
`unsafe fn get_unchecked(
self,
slice: &str
) -> &<Range<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

####
ⓘImportant traits for Range<A>

### Important traits for Range<A>

`impl<A> Iterator for Range<A> where
A: Step, type Item = A;`
`unsafe fn get_unchecked_mut(
self,
slice: &mut str
) -> &mut <Range<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

####
ⓘImportant traits for Range<A>

### Important traits for Range<A>

`impl<A> Iterator for Range<A> where
A: Step, type Item = A;`
`fn index(self, slice: &str) -> &<Range<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

####
ⓘImportant traits for Range<A>

### Important traits for Range<A>

`impl<A> Iterator for Range<A> where
A: Step, type Item = A;`
`fn index_mut(
self,
slice: &mut str
) -> &mut <Range<usize> as SliceIndex<str>>::Output`[src]

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)
Loading content...

## Implementors

### `impl<T> SliceIndex<[T]> for usize`[src]

#### `type Output = T`

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)

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

🔬 This is a nightly-only experimental API. (`slice_index_methods` #0)
Loading content...

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