Struct hashbrown::raw::inner::sse2::Group

source ·
pub(crate) struct Group(__m128i);
Expand description

Abstraction over a group of control bytes which can be scanned in parallel.

This implementation uses a 128-bit SSE value.

Tuple Fields§

§0: __m128i

Implementations§

source§

impl Group

source

pub(crate) const WIDTH: usize = 16usize

Number of bytes in the group.

source

pub(crate) const fn static_empty() -> &'static [u8; 16]

Returns a full group of empty bytes, suitable for use as the initial value for an empty hash table.

This is guaranteed to be aligned to the group size.

source

pub(crate) unsafe fn load(ptr: *const u8) -> Self

Loads a group of bytes starting at the given address.

source

pub(crate) unsafe fn load_aligned(ptr: *const u8) -> Self

Loads a group of bytes starting at the given address, which must be aligned to mem::align_of::<Group>().

source

pub(crate) unsafe fn store_aligned(self, ptr: *mut u8)

Stores the group of bytes to the given address, which must be aligned to mem::align_of::<Group>().

source

pub(crate) fn match_byte(self, byte: u8) -> BitMask

Returns a BitMask indicating all bytes in the group which have the given value.

source

pub(crate) fn match_empty(self) -> BitMask

Returns a BitMask indicating all bytes in the group which are EMPTY.

source

pub(crate) fn match_empty_or_deleted(self) -> BitMask

Returns a BitMask indicating all bytes in the group which are EMPTY or DELETED.

source

pub(crate) fn match_full(&self) -> BitMask

Returns a BitMask indicating all bytes in the group which are full.

source

pub(crate) fn convert_special_to_empty_and_full_to_deleted(self) -> Self

Performs the following transformation on all bytes in the group:

  • EMPTY => EMPTY
  • DELETED => EMPTY
  • FULL => DELETED

Trait Implementations§

source§

impl Clone for Group

source§

fn clone(&self) -> Group

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
source§

impl Copy for Group

Auto Trait Implementations§

§

impl Freeze for Group

§

impl RefUnwindSafe for Group

§

impl Send for Group

§

impl Sync for Group

§

impl Unpin for Group

§

impl UnwindSafe for Group

Blanket Implementations§

source§

impl<T> Any for T
where T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T, U> Into<U> for T
where U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source§

impl<T> ToOwned for T
where T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

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

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.