Struct ThinSlicePtr

pub struct ThinSlicePtr<'a, T> { /* private fields */ }

Conceptually equivalent to &'a [T] but with length information cut out for performance reasons.

Because this type does not store the length of the slice, it is unable to do any sort of bounds checking. As such, only Self::get_unchecked() is available for indexing into the slice, where the user is responsible for checking the bounds.

When compiled in debug mode (#[cfg(debug_assertion)]), this type will store the length of the slice and perform bounds checking in Self::get_unchecked().

Example

let slice: &[u32] = &[2, 4, 8];
let thin_slice = ThinSlicePtr::from(slice);

assert_eq!(*unsafe { thin_slice.get_unchecked(0) }, 2);
assert_eq!(*unsafe { thin_slice.get_unchecked(1) }, 4);
assert_eq!(*unsafe { thin_slice.get_unchecked(2) }, 8);

Implementations

impl<'a, T> ThinSlicePtr<'a, T>

pub unsafe fn get_unchecked(&self, index: usize) -> &'a T

Indexes the slice without performing bounds checks.

Safety

index must be in-bounds.

pub unsafe fn get(self, index: usize) -> &'a T

👎Deprecated since 0.18.0: use get_unchecked() instead

Indexes the slice without performing bounds checks.

Safety

index must be in-bounds.

Trait Implementations

impl<'a, T> Clone for ThinSlicePtr<'a, T>

fn clone(&self) -> ThinSlicePtr<'a, T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a, T> From<&'a [T]> for ThinSlicePtr<'a, T>

fn from(slice: &'a [T]) -> ThinSlicePtr<'a, T>

Converts to this type from the input type.

impl<'a, T> Copy for ThinSlicePtr<'a, T>