Struct Last 

pub struct Last;

🔬This is a nightly-only experimental API. (sliceindex_wrappers #146179)

Always accesses the last element of the slice.

Examples

#![feature(sliceindex_wrappers)]
#![feature(slice_index_methods)]

use core::index::Last;
use core::slice::SliceIndex;

let s = &[0, 1, 2, 3];

assert_eq!(&3, &s[Last]);
assert_eq!(None, Last.get(&[] as &[usize]));

Trait Implementations

impl Debug for Last

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T> SliceIndex<[T]> for Last

type Output = T

The output type returned by methods.

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

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

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)

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

unsafe fn get_unchecked(self, slice: *const [T]) -> *const Self::Output

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

Returns a pointer 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)

Returns a mutable pointer 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)

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)

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

impl Sealed for Last