slice - Rust
Description: API documentation for the Rust `slice` primitive in crate `std`.
Keywords: rust, rustlang, rust-lang, slice

# Primitive Type slice 1.0.0 [−]

A dynamically-sized view into a contiguous sequence, `[T]`.

Slices are a view into a block of memory represented as a pointer and a length.

    // slicing a Vec
    let vec = vec![1, 2, 3];
    let int_slice = &vec[..];
    // coercing an array to a slice
    let str_slice: &[&str] = &["one", "two", "three"];Run

Slices are either mutable or shared. The shared slice type is `&[T]`, while the mutable slice type is `&mut [T]`, where `T` represents the element type. For example, you can mutate the block of memory that a mutable slice points to:

    let x = &mut [1, 2, 3];
    x[1] = 7;
    assert_eq!(x, &[1, 7, 3]);Run

See also the `std::slice` module.

## Methods

### `impl<T> [T]`
[src]

#### `fn len(&self) -> usize`

Returns the number of elements in the slice.

# Example

    let a = [1, 2, 3];
    assert_eq!(a.len(), 3);Run

#### `fn is_empty(&self) -> bool`

Returns `true` if the slice has a length of 0.

# Example

    let a = [1, 2, 3];
    assert!(!a.is_empty());Run

#### `fn first(&self) -> Option<&T>`

Returns the first element of a slice, or `None` if it is empty.

# Examples

    let v = [10, 40, 30];
    assert_eq!(Some(&10), v.first());

    let w: &[i32] = &[];
    assert_eq!(None, w.first());Run

#### `fn first_mut(&mut self) -> Option<&mut T>`

Returns a mutable pointer to the first element of a slice, or `None` if it is empty.

# Examples

    let x = &mut [0, 1, 2];

    if let Some(first) = x.first_mut() {
        *first = 5;
    }
    assert_eq!(x, &[5, 1, 2]);Run

#### `fn split_first(&self) -> Option<(&T, &[T])>`
1.5.0

Returns the first and all the rest of the elements of a slice.

# Examples

    let x = &[0, 1, 2];

    if let Some((first, elements)) = x.split_first() {
        assert_eq!(first, &0);
        assert_eq!(elements, &[1, 2]);
    }Run

#### `fn split_first_mut(&mut self) -> Option<(&mut T, &mut [T])>`
1.5.0

Returns the first and all the rest of the elements of a slice.

# Examples

    let x = &mut [0, 1, 2];

    if let Some((first, elements)) = x.split_first_mut() {
        *first = 3;
        elements[0] = 4;
        elements[1] = 5;
    }
    assert_eq!(x, &[3, 4, 5]);Run

#### `fn split_last(&self) -> Option<(&T, &[T])>`
1.5.0

Returns the last and all the rest of the elements of a slice.

# Examples

    let x = &[0, 1, 2];

    if let Some((last, elements)) = x.split_last() {
        assert_eq!(last, &2);
        assert_eq!(elements, &[0, 1]);
    }Run

#### `fn split_last_mut(&mut self) -> Option<(&mut T, &mut [T])>`
1.5.0

Returns the last and all the rest of the elements of a slice.

# Examples

    let x = &mut [0, 1, 2];

    if let Some((last, elements)) = x.split_last_mut() {
        *last = 3;
        elements[0] = 4;
        elements[1] = 5;
    }
    assert_eq!(x, &[4, 5, 3]);Run

#### `fn last(&self) -> Option<&T>`

Returns the last element of a slice, or `None` if it is empty.

# Examples

    let v = [10, 40, 30];
    assert_eq!(Some(&30), v.last());

    let w: &[i32] = &[];
    assert_eq!(None, w.last());Run

#### `fn last_mut(&mut self) -> Option<&mut T>`

Returns a mutable pointer to the last item in the slice.

# Examples

    let x = &mut [0, 1, 2];

    if let Some(last) = x.last_mut() {
        *last = 10;
    }
    assert_eq!(x, &[0, 1, 10]);Run

#### `fn get<I>(&self, index: I) -> Option<&I::Output> where I: SliceIndex<T>`

Returns a reference to an element or subslice depending on the type of index.

- If given a position, returns a reference to the element at that position or `None` if out of bounds.
- If given a range, returns the subslice corresponding to that range, or `None` if out of bounds.

# Examples

    let v = [10, 40, 30];
    assert_eq!(Some(&40), v.get(1));
    assert_eq!(Some(&[10, 40][..]), v.get(0..2));
    assert_eq!(None, v.get(3));
    assert_eq!(None, v.get(0..4));Run

#### `fn get_mut<I>(&mut self, index: I) -> Option<&mut I::Output> where I: SliceIndex<T>`

Returns a mutable reference to an element or subslice depending on the type of index (see `get()`) or `None` if the index is out of bounds.

# Examples

    let x = &mut [0, 1, 2];

    if let Some(elem) = x.get_mut(1) {
        *elem = 42;
    }
    assert_eq!(x, &[0, 42, 2]);Run

#### `unsafe fn get_unchecked<I>(&self, index: I) -> &I::Output where I: SliceIndex<T>`

Returns a reference to an element or subslice, without doing bounds checking. So use it very carefully!

# Examples

    let x = &[1, 2, 4];

    unsafe {
        assert_eq!(x.get_unchecked(1), &2);
    }Run

#### `unsafe fn get_unchecked_mut<I>(&mut self, index: I) -> &mut I::Output where I: SliceIndex<T>`

Returns a mutable reference to an element or subslice, without doing bounds checking. So use it very carefully!

# Examples

    let x = &mut [1, 2, 4];

    unsafe {
        let elem = x.get_unchecked_mut(1);
        *elem = 13;
    }
    assert_eq!(x, &[1, 13, 4]);Run

#### `fn as_ptr(&self) -> *const T`

Returns a raw pointer to the slice's buffer.

The caller must ensure that the slice outlives the pointer this function returns, or else it will end up pointing to garbage.

Modifying the slice may cause its buffer to be reallocated, which would also make any pointers to it invalid.

# Examples

    let x = &[1, 2, 4];
    let x_ptr = x.as_ptr();

    unsafe {
        for i in 0..x.len() {
            assert_eq!(x.get_unchecked(i), &*x_ptr.offset(i as isize));
        }
    }Run

#### `fn as_mut_ptr(&mut self) -> *mut T`

Returns an unsafe mutable pointer to the slice's buffer.

The caller must ensure that the slice outlives the pointer this function returns, or else it will end up pointing to garbage.

Modifying the slice may cause its buffer to be reallocated, which would also make any pointers to it invalid.

# Examples

    let x = &mut [1, 2, 4];
    let x_ptr = x.as_mut_ptr();

    unsafe {
        for i in 0..x.len() {
            *x_ptr.offset(i as isize) += 2;
        }
    }
    assert_eq!(x, &[3, 4, 6]);Run

#### `fn swap(&mut self, a: usize, b: usize)`

Swaps two elements in a slice.

# Arguments

- a - The index of the first element
- b - The index of the second element

# Panics

Panics if `a` or `b` are out of bounds.

# Examples

    let mut v = ["a", "b", "c", "d"];
    v.swap(1, 3);
    assert!(v == ["a", "d", "c", "b"]);Run

#### `fn reverse(&mut self)`

Reverses the order of elements in a slice, in place.

# Example

    let mut v = [1, 2, 3];
    v.reverse();
    assert!(v == [3, 2, 1]);Run

#### `fn iter(&self) -> Iter<T>`

Returns an iterator over the slice.

# Examples

    let x = &[1, 2, 4];
    let mut iterator = x.iter();

    assert_eq!(iterator.next(), Some(&1));
    assert_eq!(iterator.next(), Some(&2));
    assert_eq!(iterator.next(), Some(&4));
    assert_eq!(iterator.next(), None);Run

#### `fn iter_mut(&mut self) -> IterMut<T>`

Returns an iterator that allows modifying each value.

# Examples

    let x = &mut [1, 2, 4];
    for elem in x.iter_mut() {
        *elem += 2;
    }
    assert_eq!(x, &[3, 4, 6]);Run

#### `fn windows(&self, size: usize) -> Windows<T>`

Returns an iterator over all contiguous windows of length `size`. The windows overlap. If the slice is shorter than `size`, the iterator returns no values.

# Panics

Panics if `size` is 0.

# Example

    let slice = ['r', 'u', 's', 't'];
    let mut iter = slice.windows(2);
    assert_eq!(iter.next().unwrap(), &['r', 'u']);
    assert_eq!(iter.next().unwrap(), &['u', 's']);
    assert_eq!(iter.next().unwrap(), &['s', 't']);
    assert!(iter.next().is_none());Run

If the slice is shorter than `size`:

    let slice = ['f', 'o', 'o'];
    let mut iter = slice.windows(4);
    assert!(iter.next().is_none());Run

#### `fn chunks(&self, size: usize) -> Chunks<T>`

Returns an iterator over `size` elements of the slice at a time. The chunks are slices and do not overlap. If `size` does not divide the length of the slice, then the last chunk will not have length `size`.

# Panics

Panics if `size` is 0.

# Example

    let slice = ['l', 'o', 'r', 'e', 'm'];
    let mut iter = slice.chunks(2);
    assert_eq!(iter.next().unwrap(), &['l', 'o']);
    assert_eq!(iter.next().unwrap(), &['r', 'e']);
    assert_eq!(iter.next().unwrap(), &['m']);
    assert!(iter.next().is_none());Run

#### `fn chunks_mut(&mut self, chunk_size: usize) -> ChunksMut<T>`

Returns an iterator over `chunk_size` elements of the slice at a time. The chunks are mutable slices, and do not overlap. If `chunk_size` does not divide the length of the slice, then the last chunk will not have length `chunk_size`.

# Panics

Panics if `chunk_size` is 0.

# Examples

    let v = &mut [0, 0, 0, 0, 0];
    let mut count = 1;

    for chunk in v.chunks_mut(2) {
        for elem in chunk.iter_mut() {
            *elem += count;
        }
        count += 1;
    }
    assert_eq!(v, &[1, 1, 2, 2, 3]);Run

#### `fn split_at(&self, mid: usize) -> (&[T], &[T])`

Divides one slice into two at an index.

The first will contain all indices from `[0, mid)` (excluding the index `mid` itself) and the second will contain all indices from `[mid, len)` (excluding the index `len` itself).

# Panics

Panics if `mid > len`.

# Examples

    let v = [10, 40, 30, 20, 50];
    let (v1, v2) = v.split_at(2);
    assert_eq!([10, 40], v1);
    assert_eq!([30, 20, 50], v2);Run

#### `fn split_at_mut(&mut self, mid: usize) -> (&mut [T], &mut [T])`

Divides one `&mut` into two at an index.

The first will contain all indices from `[0, mid)` (excluding the index `mid` itself) and the second will contain all indices from `[mid, len)` (excluding the index `len` itself).

# Panics

Panics if `mid > len`.

# Examples

    let mut v = [1, 2, 3, 4, 5, 6];

    // scoped to restrict the lifetime of the borrows
    {
       let (left, right) = v.split_at_mut(0);
       assert!(left == []);
       assert!(right == [1, 2, 3, 4, 5, 6]);
    }

    {
        let (left, right) = v.split_at_mut(2);
        assert!(left == [1, 2]);
        assert!(right == [3, 4, 5, 6]);
    }

    {
        let (left, right) = v.split_at_mut(6);
        assert!(left == [1, 2, 3, 4, 5, 6]);
        assert!(right == []);
    }Run

#### `fn split<F>(&self, pred: F) -> Split<T, F> where F: FnMut(&T) -> bool`

Returns an iterator over subslices separated by elements that match `pred`. The matched element is not contained in the subslices.

# Examples

    let slice = [10, 40, 33, 20];
    let mut iter = slice.split(|num| num % 3 == 0);

    assert_eq!(iter.next().unwrap(), &[10, 40]);
    assert_eq!(iter.next().unwrap(), &[20]);
    assert!(iter.next().is_none());Run

If the first element is matched, an empty slice will be the first item returned by the iterator. Similarly, if the last element in the slice is matched, an empty slice will be the last item returned by the iterator:

    let slice = [10, 40, 33];
    let mut iter = slice.split(|num| num % 3 == 0);

    assert_eq!(iter.next().unwrap(), &[10, 40]);
    assert_eq!(iter.next().unwrap(), &[]);
    assert!(iter.next().is_none());Run

If two matched elements are directly adjacent, an empty slice will be present between them:

    let slice = [10, 6, 33, 20];
    let mut iter = slice.split(|num| num % 3 == 0);

    assert_eq!(iter.next().unwrap(), &[10]);
    assert_eq!(iter.next().unwrap(), &[]);
    assert_eq!(iter.next().unwrap(), &[20]);
    assert!(iter.next().is_none());Run

#### `fn split_mut<F>(&mut self, pred: F) -> SplitMut<T, F> where F: FnMut(&T) -> bool`

Returns an iterator over mutable subslices separated by elements that match `pred`. The matched element is not contained in the subslices.

# Examples

    let mut v = [10, 40, 30, 20, 60, 50];

    for group in v.split_mut(|num| *num % 3 == 0) {
        group[0] = 1;
    }
    assert_eq!(v, [1, 40, 30, 1, 60, 1]);Run

#### `fn splitn<F>(&self, n: usize, pred: F) -> SplitN<T, F> where F: FnMut(&T) -> bool`

Returns an iterator over subslices separated by elements that match `pred`, limited to returning at most `n` items. The matched element is not contained in the subslices.

The last element returned, if any, will contain the remainder of the slice.

# Examples

Print the slice split once by numbers divisible by 3 (i.e. `[10, 40]`, `[20, 60, 50]`):

    let v = [10, 40, 30, 20, 60, 50];

    for group in v.splitn(2, |num| *num % 3 == 0) {
        println!("{:?}", group);
    }Run

#### `fn splitn_mut<F>(&mut self, n: usize, pred: F) -> SplitNMut<T, F> where F: FnMut(&T) -> bool`

Returns an iterator over subslices separated by elements that match `pred`, limited to returning at most `n` items. The matched element is not contained in the subslices.

The last element returned, if any, will contain the remainder of the slice.

# Examples

    let mut v = [10, 40, 30, 20, 60, 50];

    for group in v.splitn_mut(2, |num| *num % 3 == 0) {
        group[0] = 1;
    }
    assert_eq!(v, [1, 40, 30, 1, 60, 50]);Run

#### `fn rsplitn<F>(&self, n: usize, pred: F) -> RSplitN<T, F> where F: FnMut(&T) -> bool`

Returns an iterator over subslices separated by elements that match `pred` limited to returning at most `n` items. This starts at the end of the slice and works backwards. The matched element is not contained in the subslices.

The last element returned, if any, will contain the remainder of the slice.

# Examples

Print the slice split once, starting from the end, by numbers divisible by 3 (i.e. `[50]`, `[10, 40, 30, 20]`):

    let v = [10, 40, 30, 20, 60, 50];

    for group in v.rsplitn(2, |num| *num % 3 == 0) {
        println!("{:?}", group);
    }Run

#### `fn rsplitn_mut<F>(&mut self, n: usize, pred: F) -> RSplitNMut<T, F> where F: FnMut(&T) -> bool`

Returns an iterator over subslices separated by elements that match `pred` limited to returning at most `n` items. This starts at the end of the slice and works backwards. The matched element is not contained in the subslices.

The last element returned, if any, will contain the remainder of the slice.

# Examples

    let mut s = [10, 40, 30, 20, 60, 50];

    for group in s.rsplitn_mut(2, |num| *num % 3 == 0) {
        group[0] = 1;
    }
    assert_eq!(s, [1, 40, 30, 20, 60, 1]);Run

#### `fn contains(&self, x: &T) -> bool where T: PartialEq<T>`

Returns `true` if the slice contains an element with the given value.

# Examples

    let v = [10, 40, 30];
    assert!(v.contains(&30));
    assert!(!v.contains(&50));Run

#### `fn starts_with(&self, needle: &[T]) -> bool where T: PartialEq<T>`

Returns `true` if `needle` is a prefix of the slice.

# Examples

    let v = [10, 40, 30];
    assert!(v.starts_with(&[10]));
    assert!(v.starts_with(&[10, 40]));
    assert!(!v.starts_with(&[50]));
    assert!(!v.starts_with(&[10, 50]));Run

Always returns `true` if `needle` is an empty slice:

    let v = &[10, 40, 30];
    assert!(v.starts_with(&[]));
    let v: &[u8] = &[];
    assert!(v.starts_with(&[]));Run

#### `fn ends_with(&self, needle: &[T]) -> bool where T: PartialEq<T>`

Returns `true` if `needle` is a suffix of the slice.

# Examples

    let v = [10, 40, 30];
    assert!(v.ends_with(&[30]));
    assert!(v.ends_with(&[40, 30]));
    assert!(!v.ends_with(&[50]));
    assert!(!v.ends_with(&[50, 30]));Run

Always returns `true` if `needle` is an empty slice:

    let v = &[10, 40, 30];
    assert!(v.ends_with(&[]));
    let v: &[u8] = &[];
    assert!(v.ends_with(&[]));Run

#### `fn binary_search(&self, x: &T) -> Result<usize, usize> where T: Ord`

Binary search a sorted slice for a given element.

If the value is found then `Ok` is returned, containing the index of the matching element; if the value is not found then `Err` is returned, containing the index where a matching element could be inserted while maintaining sorted order.

# Example

Looks up a series of four elements. The first is found, with a uniquely determined position; the second and third are not found; the fourth could match any position in `[1, 4]`.

    let s = [0, 1, 1, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55];

    assert_eq!(s.binary_search(&13),  Ok(9));
    assert_eq!(s.binary_search(&4),   Err(7));
    assert_eq!(s.binary_search(&100), Err(13));
    let r = s.binary_search(&1);
    assert!(match r { Ok(1...4) => true, _ => false, });Run

#### `fn binary_search_by<'a, F>(&'a self, f: F) -> Result<usize, usize> where F: FnMut(&'a T) -> Ordering`

Binary search a sorted slice with a comparator function.

The comparator function should implement an order consistent with the sort order of the underlying slice, returning an order code that indicates whether its argument is `Less`, `Equal` or `Greater` the desired target.

If a matching value is found then returns `Ok`, containing the index for the matched element; if no match is found then `Err` is returned, containing the index where a matching element could be inserted while maintaining sorted order.

# Example

Looks up a series of four elements. The first is found, with a uniquely determined position; the second and third are not found; the fourth could match any position in `[1, 4]`.

    let s = [0, 1, 1, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55];

    let seek = 13;
    assert_eq!(s.binary_search_by(|probe| probe.cmp(&seek)), Ok(9));
    let seek = 4;
    assert_eq!(s.binary_search_by(|probe| probe.cmp(&seek)), Err(7));
    let seek = 100;
    assert_eq!(s.binary_search_by(|probe| probe.cmp(&seek)), Err(13));
    let seek = 1;
    let r = s.binary_search_by(|probe| probe.cmp(&seek));
    assert!(match r { Ok(1...4) => true, _ => false, });Run

#### `fn binary_search_by_key<'a, B, F>(&'a self, b: &B, f: F) -> Result<usize, usize> where B: Ord, F: FnMut(&'a T) -> B`
1.10.0

Binary search a sorted slice with a key extraction function.

Assumes that the slice is sorted by the key, for instance with `sort_by_key` using the same key extraction function.

If a matching value is found then returns `Ok`, containing the index for the matched element; if no match is found then `Err` is returned, containing the index where a matching element could be inserted while maintaining sorted order.

# Examples

Looks up a series of four elements in a slice of pairs sorted by their second elements. The first is found, with a uniquely determined position; the second and third are not found; the fourth could match any position in `[1, 4]`.

    let s = [(0, 0), (2, 1), (4, 1), (5, 1), (3, 1),
             (1, 2), (2, 3), (4, 5), (5, 8), (3, 13),
             (1, 21), (2, 34), (4, 55)];

    assert_eq!(s.binary_search_by_key(&13, |&(a,b)| b),  Ok(9));
    assert_eq!(s.binary_search_by_key(&4, |&(a,b)| b),   Err(7));
    assert_eq!(s.binary_search_by_key(&100, |&(a,b)| b), Err(13));
    let r = s.binary_search_by_key(&1, |&(a,b)| b);
    assert!(match r { Ok(1...4) => true, _ => false, });Run

#### `fn sort(&mut self) where T: Ord`

Sorts the slice.

This sort is stable (i.e. does not reorder equal elements) and `O(n log n)` worst-case.

# Current implementation

The current algorithm is an adaptive, iterative merge sort inspired by timsort. It is designed to be very fast in cases where the slice is nearly sorted, or consists of two or more sorted sequences concatenated one after another.

Also, it allocates temporary storage half the size of `self`, but for short slices a non-allocating insertion sort is used instead.

# Examples

    let mut v = [-5, 4, 1, -3, 2];

    v.sort();
    assert!(v == [-5, -3, 1, 2, 4]);Run

#### `fn sort_by_key<B, F>(&mut self, f: F) where B: Ord, F: FnMut(&T) -> B`
1.7.0

Sorts the slice using `f` to extract a key to compare elements by.

This sort is stable (i.e. does not reorder equal elements) and `O(n log n)` worst-case.

# Current implementation

The current algorithm is an adaptive, iterative merge sort inspired by timsort. It is designed to be very fast in cases where the slice is nearly sorted, or consists of two or more sorted sequences concatenated one after another.

Also, it allocates temporary storage half the size of `self`, but for short slices a non-allocating insertion sort is used instead.

# Examples

    let mut v = [-5i32, 4, 1, -3, 2];

    v.sort_by_key(|k| k.abs());
    assert!(v == [1, 2, -3, 4, -5]);Run

#### `fn sort_by<F>(&mut self, compare: F) where F: FnMut(&T, &T) -> Ordering`

Sorts the slice using `compare` to compare elements.

This sort is stable (i.e. does not reorder equal elements) and `O(n log n)` worst-case.

# Current implementation

The current algorithm is an adaptive, iterative merge sort inspired by timsort. It is designed to be very fast in cases where the slice is nearly sorted, or consists of two or more sorted sequences concatenated one after another.

Also, it allocates temporary storage half the size of `self`, but for short slices a non-allocating insertion sort is used instead.

# Examples

    let mut v = [5, 4, 1, 3, 2];
    v.sort_by(|a, b| a.cmp(b));
    assert!(v == [1, 2, 3, 4, 5]);

    // reverse sorting
    v.sort_by(|a, b| b.cmp(a));
    assert!(v == [5, 4, 3, 2, 1]);Run

#### `fn clone_from_slice(&mut self, src: &[T]) where T: Clone`
1.7.0

Copies the elements from `src` into `self`.

The length of `src` must be the same as `self`.

# Panics

This function will panic if the two slices have different lengths.

# Example

    let mut dst = [0, 0, 0];
    let src = [1, 2, 3];

    dst.clone_from_slice(&src);
    assert!(dst == [1, 2, 3]);Run

#### `fn copy_from_slice(&mut self, src: &[T]) where T: Copy`
1.9.0

Copies all elements from `src` into `self`, using a memcpy.

The length of `src` must be the same as `self`.

# Panics

This function will panic if the two slices have different lengths.

# Example

    let mut dst = [0, 0, 0];
    let src = [1, 2, 3];

    dst.copy_from_slice(&src);
    assert_eq!(src, dst);Run

#### `fn to_vec(&self) -> Vec<T> where T: Clone`

Copies `self` into a new `Vec`.

# Examples

    let s = [10, 40, 30];
    let x = s.to_vec();
    // Here, `s` and `x` can be modified independently.Run

#### `fn into_vec(self: Box<[T]>) -> Vec<T>`

Converts `self` into a vector without clones or allocation.

# Examples

    let s: Box<[i32]> = Box::new([10, 40, 30]);
    let x = s.into_vec();
    // `s` cannot be used anymore because it has been converted into `x`.

    assert_eq!(x, vec![10, 40, 30]);Run

## Trait Implementations

### `impl<T, V> SliceConcatExt<T> for [V] where T: Clone, V: Borrow<[T]>`
[src]

#### `type Output = Vec<T>`

🔬 This is a nightly-only experimental API. (`slice_concat_ext` #27747)

trait should not have to exist

The resulting type after concatenation

#### `fn concat(&self) -> Vec<T>`

Flattens a slice of `T` into a single value `Self::Output`. Read more

#### `fn join(&self, sep: &T) -> Vec<T>`

Flattens a slice of `T` into a single value `Self::Output`, placing a given separator between each. Read more

#### `fn connect(&self, sep: &T) -> Vec<T>`

Deprecated since 1.3.0

: renamed to join

### `impl<S> SliceConcatExt<str> for [S] where S: Borrow<str>`
[src]

#### `type Output = String`

🔬 This is a nightly-only experimental API. (`slice_concat_ext` #27747)

trait should not have to exist

The resulting type after concatenation

#### `fn concat(&self) -> String`

Flattens a slice of `T` into a single value `Self::Output`. Read more

#### `fn join(&self, sep: &str) -> String`

Flattens a slice of `T` into a single value `Self::Output`, placing a given separator between each. Read more

#### `fn connect(&self, sep: &str) -> String`

Deprecated since 1.3.0

: renamed to join

### `impl<T> ToOwned for [T] where T: Clone`
[src]

#### `type Owned = Vec<T>`

#### `fn to_owned(&self) -> Vec<T>`

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

### `impl<T, I> Index<I> for [T] where I: SliceIndex<T>`
[src]

#### `type Output = I::Output`

The returned type after indexing

#### `fn index(&self, index: I) -> &I::Output`

The method for the indexing (`container[index]`) operation

### `impl<A, B> PartialEq<[B]> for [A] where A: PartialEq<B>`
[src]

#### `fn eq(&self, other: &[B]) -> bool`

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

#### `fn ne(&self, other: &[B]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 0]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 0]) -> bool`

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

#### `fn ne(&self, other: &[A; 0]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 0]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 0]) -> bool`

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

#### `fn ne(&self, other: &[A; 0]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 0]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 0]) -> bool`

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

#### `fn ne(&self, other: &[A; 0]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 1]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 1]) -> bool`

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

#### `fn ne(&self, other: &[A; 1]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 1]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 1]) -> bool`

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

#### `fn ne(&self, other: &[A; 1]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 1]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 1]) -> bool`

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

#### `fn ne(&self, other: &[A; 1]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 2]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 2]) -> bool`

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

#### `fn ne(&self, other: &[A; 2]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 2]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 2]) -> bool`

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

#### `fn ne(&self, other: &[A; 2]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 2]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 2]) -> bool`

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

#### `fn ne(&self, other: &[A; 2]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 3]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 3]) -> bool`

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

#### `fn ne(&self, other: &[A; 3]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 3]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 3]) -> bool`

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

#### `fn ne(&self, other: &[A; 3]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 3]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 3]) -> bool`

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

#### `fn ne(&self, other: &[A; 3]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 4]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 4]) -> bool`

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

#### `fn ne(&self, other: &[A; 4]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 4]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 4]) -> bool`

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

#### `fn ne(&self, other: &[A; 4]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 4]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 4]) -> bool`

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

#### `fn ne(&self, other: &[A; 4]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 5]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 5]) -> bool`

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

#### `fn ne(&self, other: &[A; 5]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 5]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 5]) -> bool`

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

#### `fn ne(&self, other: &[A; 5]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 5]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 5]) -> bool`

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

#### `fn ne(&self, other: &[A; 5]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 6]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 6]) -> bool`

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

#### `fn ne(&self, other: &[A; 6]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 6]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 6]) -> bool`

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

#### `fn ne(&self, other: &[A; 6]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 6]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 6]) -> bool`

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

#### `fn ne(&self, other: &[A; 6]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 7]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 7]) -> bool`

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

#### `fn ne(&self, other: &[A; 7]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 7]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 7]) -> bool`

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

#### `fn ne(&self, other: &[A; 7]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 7]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 7]) -> bool`

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

#### `fn ne(&self, other: &[A; 7]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 8]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 8]) -> bool`

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

#### `fn ne(&self, other: &[A; 8]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 8]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 8]) -> bool`

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

#### `fn ne(&self, other: &[A; 8]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 8]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 8]) -> bool`

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

#### `fn ne(&self, other: &[A; 8]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 9]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 9]) -> bool`

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

#### `fn ne(&self, other: &[A; 9]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 9]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 9]) -> bool`

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

#### `fn ne(&self, other: &[A; 9]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 9]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 9]) -> bool`

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

#### `fn ne(&self, other: &[A; 9]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 10]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 10]) -> bool`

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

#### `fn ne(&self, other: &[A; 10]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 10]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 10]) -> bool`

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

#### `fn ne(&self, other: &[A; 10]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 10]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 10]) -> bool`

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

#### `fn ne(&self, other: &[A; 10]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 11]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 11]) -> bool`

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

#### `fn ne(&self, other: &[A; 11]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 11]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 11]) -> bool`

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

#### `fn ne(&self, other: &[A; 11]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 11]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 11]) -> bool`

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

#### `fn ne(&self, other: &[A; 11]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 12]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 12]) -> bool`

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

#### `fn ne(&self, other: &[A; 12]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 12]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 12]) -> bool`

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

#### `fn ne(&self, other: &[A; 12]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 12]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 12]) -> bool`

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

#### `fn ne(&self, other: &[A; 12]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 13]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 13]) -> bool`

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

#### `fn ne(&self, other: &[A; 13]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 13]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 13]) -> bool`

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

#### `fn ne(&self, other: &[A; 13]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 13]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 13]) -> bool`

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

#### `fn ne(&self, other: &[A; 13]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 14]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 14]) -> bool`

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

#### `fn ne(&self, other: &[A; 14]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 14]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 14]) -> bool`

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

#### `fn ne(&self, other: &[A; 14]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 14]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 14]) -> bool`

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

#### `fn ne(&self, other: &[A; 14]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 15]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 15]) -> bool`

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

#### `fn ne(&self, other: &[A; 15]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 15]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 15]) -> bool`

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

#### `fn ne(&self, other: &[A; 15]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 15]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 15]) -> bool`

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

#### `fn ne(&self, other: &[A; 15]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 16]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 16]) -> bool`

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

#### `fn ne(&self, other: &[A; 16]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 16]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 16]) -> bool`

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

#### `fn ne(&self, other: &[A; 16]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 16]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 16]) -> bool`

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

#### `fn ne(&self, other: &[A; 16]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 17]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 17]) -> bool`

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

#### `fn ne(&self, other: &[A; 17]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 17]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 17]) -> bool`

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

#### `fn ne(&self, other: &[A; 17]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 17]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 17]) -> bool`

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

#### `fn ne(&self, other: &[A; 17]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 18]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 18]) -> bool`

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

#### `fn ne(&self, other: &[A; 18]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 18]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 18]) -> bool`

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

#### `fn ne(&self, other: &[A; 18]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 18]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 18]) -> bool`

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

#### `fn ne(&self, other: &[A; 18]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 19]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 19]) -> bool`

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

#### `fn ne(&self, other: &[A; 19]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 19]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 19]) -> bool`

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

#### `fn ne(&self, other: &[A; 19]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 19]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 19]) -> bool`

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

#### `fn ne(&self, other: &[A; 19]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 20]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 20]) -> bool`

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

#### `fn ne(&self, other: &[A; 20]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 20]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 20]) -> bool`

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

#### `fn ne(&self, other: &[A; 20]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 20]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 20]) -> bool`

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

#### `fn ne(&self, other: &[A; 20]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 21]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 21]) -> bool`

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

#### `fn ne(&self, other: &[A; 21]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 21]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 21]) -> bool`

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

#### `fn ne(&self, other: &[A; 21]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 21]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 21]) -> bool`

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

#### `fn ne(&self, other: &[A; 21]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 22]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 22]) -> bool`

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

#### `fn ne(&self, other: &[A; 22]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 22]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 22]) -> bool`

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

#### `fn ne(&self, other: &[A; 22]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 22]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 22]) -> bool`

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

#### `fn ne(&self, other: &[A; 22]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 23]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 23]) -> bool`

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

#### `fn ne(&self, other: &[A; 23]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 23]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 23]) -> bool`

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

#### `fn ne(&self, other: &[A; 23]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 23]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 23]) -> bool`

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

#### `fn ne(&self, other: &[A; 23]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 24]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 24]) -> bool`

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

#### `fn ne(&self, other: &[A; 24]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 24]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 24]) -> bool`

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

#### `fn ne(&self, other: &[A; 24]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 24]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 24]) -> bool`

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

#### `fn ne(&self, other: &[A; 24]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 25]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 25]) -> bool`

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

#### `fn ne(&self, other: &[A; 25]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 25]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 25]) -> bool`

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

#### `fn ne(&self, other: &[A; 25]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 25]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 25]) -> bool`

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

#### `fn ne(&self, other: &[A; 25]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 26]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 26]) -> bool`

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

#### `fn ne(&self, other: &[A; 26]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 26]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 26]) -> bool`

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

#### `fn ne(&self, other: &[A; 26]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 26]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 26]) -> bool`

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

#### `fn ne(&self, other: &[A; 26]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 27]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 27]) -> bool`

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

#### `fn ne(&self, other: &[A; 27]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 27]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 27]) -> bool`

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

#### `fn ne(&self, other: &[A; 27]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 27]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 27]) -> bool`

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

#### `fn ne(&self, other: &[A; 27]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 28]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 28]) -> bool`

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

#### `fn ne(&self, other: &[A; 28]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 28]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 28]) -> bool`

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

#### `fn ne(&self, other: &[A; 28]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 28]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 28]) -> bool`

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

#### `fn ne(&self, other: &[A; 28]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 29]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 29]) -> bool`

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

#### `fn ne(&self, other: &[A; 29]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 29]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 29]) -> bool`

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

#### `fn ne(&self, other: &[A; 29]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 29]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 29]) -> bool`

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

#### `fn ne(&self, other: &[A; 29]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 30]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 30]) -> bool`

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

#### `fn ne(&self, other: &[A; 30]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 30]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 30]) -> bool`

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

#### `fn ne(&self, other: &[A; 30]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 30]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 30]) -> bool`

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

#### `fn ne(&self, other: &[A; 30]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 31]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 31]) -> bool`

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

#### `fn ne(&self, other: &[A; 31]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 31]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 31]) -> bool`

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

#### `fn ne(&self, other: &[A; 31]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 31]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 31]) -> bool`

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

#### `fn ne(&self, other: &[A; 31]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 32]> for [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 32]) -> bool`

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

#### `fn ne(&self, other: &[A; 32]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 32]> for &'b [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 32]) -> bool`

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

#### `fn ne(&self, other: &[A; 32]) -> bool`

This method tests for `!=`.

### `impl<'a, 'b, A, B> PartialEq<[A; 32]> for &'b mut [B] where B: PartialEq<A>`
[src]

#### `fn eq(&self, other: &[A; 32]) -> bool`

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

#### `fn ne(&self, other: &[A; 32]) -> bool`

This method tests for `!=`.

### `impl<'a, T> IntoIterator for &'a [T]`
[src]

#### `type Item = &'a T`

The type of the elements being iterated over.

#### `type IntoIter = Iter<'a, T>`

Which kind of iterator are we turning this into?

#### `fn into_iter(self) -> Iter<'a, T>`

Creates an iterator from a value. Read more

### `impl<'a, T> IntoIterator for &'a mut [T]`
[src]

#### `type Item = &'a mut T`

The type of the elements being iterated over.

#### `type IntoIter = IterMut<'a, T>`

Which kind of iterator are we turning this into?

#### `fn into_iter(self) -> IterMut<'a, T>`

Creates an iterator from a value. Read more

### `impl<'a, T> Default for &'a [T]`
[src]

#### `fn default() -> &'a [T]`

Creates an empty slice.

### `impl<'a, T> Default for &'a mut [T]`
1.5.0
[src]

#### `fn default() -> &'a mut [T]`

Creates a mutable empty slice.

### `impl<T> AsMut<[T]> for [T]`
[src]

#### `fn as_mut(&mut self) -> &mut [T]`

Performs the conversion.

### `impl<T> SliceExt for [T]`
[src]

#### `type Item = T`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn split_at(&self, mid: usize) -> (&[T], &[T])`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn iter(&self) -> Iter<T>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn split<P>(&self, pred: P) -> Split<T, P> where P: FnMut(&T) -> bool`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn splitn<P>(&self, n: usize, pred: P) -> SplitN<T, P> where P: FnMut(&T) -> bool`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn rsplitn<P>(&self, n: usize, pred: P) -> RSplitN<T, P> where P: FnMut(&T) -> bool`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn windows(&self, size: usize) -> Windows<T>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn chunks(&self, size: usize) -> Chunks<T>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn get<I>(&self, index: I) -> Option<&I::Output> where I: SliceIndex<T>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn first(&self) -> Option<&T>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn split_first(&self) -> Option<(&T, &[T])>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn split_last(&self) -> Option<(&T, &[T])>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn last(&self) -> Option<&T>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `unsafe fn get_unchecked<I>(&self, index: I) -> &I::Output where I: SliceIndex<T>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn as_ptr(&self) -> *const T`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn binary_search_by<'a, F>(&'a self, f: F) -> Result<usize, usize> where F: FnMut(&'a T) -> Ordering`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn len(&self) -> usize`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn get_mut<I>(&mut self, index: I) -> Option<&mut I::Output> where I: SliceIndex<T>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn split_at_mut(&mut self, mid: usize) -> (&mut [T], &mut [T])`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn iter_mut(&mut self) -> IterMut<T>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn last_mut(&mut self) -> Option<&mut T>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn first_mut(&mut self) -> Option<&mut T>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn split_first_mut(&mut self) -> Option<(&mut T, &mut [T])>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn split_last_mut(&mut self) -> Option<(&mut T, &mut [T])>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn split_mut<P>(&mut self, pred: P) -> SplitMut<T, P> where P: FnMut(&T) -> bool`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn splitn_mut<P>(&mut self, n: usize, pred: P) -> SplitNMut<T, P> where P: FnMut(&T) -> bool`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn rsplitn_mut<P>(&mut self, n: usize, pred: P) -> RSplitNMut<T, P> where P: FnMut(&T) -> bool`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn chunks_mut(&mut self, chunk_size: usize) -> ChunksMut<T>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn swap(&mut self, a: usize, b: usize)`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn reverse(&mut self)`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `unsafe fn get_unchecked_mut<I>(&mut self, index: I) -> &mut I::Output where I: SliceIndex<T>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn as_mut_ptr(&mut self) -> *mut T`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn contains(&self, x: &T) -> bool where T: PartialEq<T>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn starts_with(&self, needle: &[T]) -> bool where T: PartialEq<T>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn ends_with(&self, needle: &[T]) -> bool where T: PartialEq<T>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn binary_search<Q>(&self, x: &Q) -> Result<usize, usize> where Q: Ord + ?Sized, T: Borrow<Q>`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn clone_from_slice(&mut self, src: &[T]) where T: Clone`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn copy_from_slice(&mut self, src: &[T]) where T: Copy`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

#### `fn binary_search_by_key<'a, B, F, Q>(&'a self,
b: &Q,
f: F)
-> Result<usize, usize> where B: Borrow<Q>, F: FnMut(&'a [T]::Item) -> B, Q: Ord + ?Sized`

🔬 This is a nightly-only experimental API. (`core_slice_ext` #32110)

stable interface provided by `impl [T]` in later crates

### `impl<T> Eq for [T] where T: Eq`
[src]

### `impl<'a, 'b> Pattern<'a> for &'b [char]`
[src]

Searches for chars that are equal to any of the chars in the array

#### `type Searcher = CharSliceSearcher<'a, 'b>`

🔬 This is a nightly-only experimental API. (`pattern` #27721)

API not fully fleshed out and ready to be stabilized

Associated searcher for this pattern

#### `fn into_searcher(self, haystack: &'a str) -> CharSliceSearcher<'a, 'b>`

🔬 This is a nightly-only experimental API. (`pattern` #27721)

API not fully fleshed out and ready to be stabilized

Constructs the associated searcher from `self` and the `haystack` to search in. Read more

#### `fn is_contained_in(self, haystack: &'a str) -> bool`

🔬 This is a nightly-only experimental API. (`pattern` #27721)

API not fully fleshed out and ready to be stabilized

Checks whether the pattern matches anywhere in the haystack

#### `fn is_prefix_of(self, haystack: &'a str) -> bool`

🔬 This is a nightly-only experimental API. (`pattern` #27721)

API not fully fleshed out and ready to be stabilized

Checks whether the pattern matches at the front of the haystack

#### `fn is_suffix_of(self, haystack: &'a str) -> bool where CharSliceSearcher<'a, 'b>: ReverseSearcher<'a>`

🔬 This is a nightly-only experimental API. (`pattern` #27721)

API not fully fleshed out and ready to be stabilized

Checks whether the pattern matches at the back of the haystack

### `impl<T> AsRef<[T]> for [T]`
[src]

#### `fn as_ref(&self) -> &[T]`

Performs the conversion.

### `impl<T> Debug for [T] where T: Debug`
[src]

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

Formats the value using the given formatter.

### `impl<T> Ord for [T] where T: Ord`
[src]

#### `fn cmp(&self, other: &[T]) -> Ordering`

This method returns an `Ordering` between `self` and `other`. Read more

### `impl<T> Hash for [T] where T: Hash`
[src]

#### `fn hash<H>(&self, state: &mut H) where H: Hasher`

Feeds this value into the state given, updating the hasher as necessary.

#### `fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher`
1.3.0

Feeds a slice of this type into the state provided.

### `impl<T> PartialOrd<[T]> for [T] where T: PartialOrd<T>`
[src]

#### `fn partial_cmp(&self, other: &[T]) -> Option<Ordering>`

This method returns an ordering between `self` and `other` values if one exists. Read more

#### `fn lt(&self, other: &Rhs) -> bool`

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

#### `fn le(&self, other: &Rhs) -> bool`

This method tests less than or equal to (for `self` and `other`) and is used by the `<=` operator. Read more

#### `fn gt(&self, other: &Rhs) -> bool`

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

#### `fn ge(&self, other: &Rhs) -> bool`

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more

### `impl<T, I> IndexMut<I> for [T] where I: SliceIndex<T>`
[src]

#### `fn index_mut(&mut self, index: I) -> &mut I::Output`

The method for the mutable indexing (`container[index]`) operation

### `impl AsciiExt for [u8]`
[src]

#### `type Owned = Vec<u8>`

Container type for copied ASCII characters.

#### `fn is_ascii(&self) -> bool`

Checks if the value is within the ASCII range. Read more

#### `fn to_ascii_uppercase(&self) -> Vec<u8>`

Makes a copy of the string in ASCII upper case. Read more

#### `fn to_ascii_lowercase(&self) -> Vec<u8>`

Makes a copy of the string in ASCII lower case. Read more

#### `fn eq_ignore_ascii_case(&self, other: &[u8]) -> bool`

Checks that two strings are an ASCII case-insensitive match. Read more

#### `fn make_ascii_uppercase(&mut self)`

Converts this type to its ASCII upper case equivalent in-place. Read more

#### `fn make_ascii_lowercase(&mut self)`

Converts this type to its ASCII lower case equivalent in-place. Read more

### `impl<'a> Read for &'a [u8]`
[src]

Read is implemented for `&[u8]` by copying from the slice.

Note that reading updates the slice to point to the yet unread part. The slice will be empty when EOF is reached.

#### `fn read(&mut self, buf: &mut [u8]) -> Result<usize>`

Pull some bytes from this source into the specified buffer, returning how many bytes were read. Read more

#### `fn read_exact(&mut self, buf: &mut [u8]) -> Result<()>`

Read the exact number of bytes required to fill `buf`. Read more

#### `fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize>`

Read all bytes until EOF in this source, placing them into `buf`. Read more

#### `fn read_to_string(&mut self, buf: &mut String) -> Result<usize>`

Read all bytes until EOF in this source, placing them into `buf`. Read more

#### `fn by_ref(&mut self) -> &mut Self where Self: Sized`

Creates a "by reference" adaptor for this instance of `Read`. Read more

#### `fn bytes(self) -> Bytes<Self> where Self: Sized`

Transforms this `Read` instance to an `Iterator` over its bytes. Read more

#### `fn chars(self) -> Chars<Self> where Self: Sized`

🔬 This is a nightly-only experimental API. (`io` #27802)

the semantics of a partial read/write of where errors happen is currently unclear and may change

Transforms this `Read` instance to an `Iterator` over `char`s. Read more

#### `fn chain<R: Read>(self, next: R) -> Chain<Self, R> where Self: Sized`

Creates an adaptor which will chain this stream with another. Read more

#### `fn take(self, limit: u64) -> Take<Self> where Self: Sized`

Creates an adaptor which will read at most `limit` bytes from it. Read more

### `impl<'a> BufRead for &'a [u8]`
[src]

#### `fn fill_buf(&mut self) -> Result<&[u8]>`

Fills the internal buffer of this object, returning the buffer contents. Read more

#### `fn consume(&mut self, amt: usize)`

Tells this buffer that `amt` bytes have been consumed from the buffer, so they should no longer be returned in calls to `read`. Read more

#### `fn read_until(&mut self, byte: u8, buf: &mut Vec<u8>) -> Result<usize>`

Read all bytes into `buf` until the delimiter `byte` or EOF is reached. Read more

#### `fn read_line(&mut self, buf: &mut String) -> Result<usize>`

Read all bytes until a newline (the 0xA byte) is reached, and append them to the provided buffer. Read more

#### `fn split(self, byte: u8) -> Split<Self> where Self: Sized`

Returns an iterator over the contents of this reader split on the byte `byte`. Read more

#### `fn lines(self) -> Lines<Self> where Self: Sized`

Returns an iterator over the lines of this reader. Read more

### `impl<'a> Write for &'a mut [u8]`
[src]

Write is implemented for `&mut [u8]` by copying into the slice, overwriting its data.

Note that writing updates the slice to point to the yet unwritten part. The slice will be empty when it has been completely overwritten.

#### `fn write(&mut self, data: &[u8]) -> Result<usize>`

Write a buffer into this object, returning how many bytes were written. Read more

#### `fn write_all(&mut self, data: &[u8]) -> Result<()>`

Attempts to write an entire buffer into this write. Read more

#### `fn flush(&mut self) -> Result<()>`

Flush this output stream, ensuring that all intermediately buffered contents reach their destination. Read more

#### `fn write_fmt(&mut self, fmt: Arguments) -> Result<()>`

Writes a formatted string into this writer, returning any error encountered. Read more

#### `fn by_ref(&mut self) -> &mut Self where Self: Sized`

Creates a "by reference" adaptor for this instance of `Write`. Read more

### `impl<'a> ToSocketAddrs for &'a [SocketAddr]`
1.8.0
[src]

#### `type Iter = Cloned<Iter<'a, SocketAddr>>`

Returned iterator over socket addresses which this type may correspond to. Read more

#### `fn to_socket_addrs(&self) -> Result<Self::Iter>`

Converts this object to an iterator of resolved `SocketAddr`s. Read more

# Help

## Keyboard Shortcuts

?
  Show this help dialog
S
  Focus the search field
⇤
  Move up in search results
⇥
  Move down in search results
⏎
  Go to active search result
+
  Collapse/expand all sections

## Search Tricks

Prefix searches with a type followed by a colon (e.g. `fn:`) to restrict the search to a given type.

Accepted types are: `fn`, `mod`, `struct`, `enum`, `trait`, `type`, `macro`, and `const`.

Search functions by type signature (e.g. `vec -> usize` or `* -> vec`)