Struct swar::Bits2

pub struct Bits2<N>(pub N);

This is used when every 2 bits is a number stored in parallel.

Methods

impl Bits2<u128>

pub fn sum_weight2(self) -> Bits4<u128>

pub fn hwd(self, other: Self) -> Self

This computes the hamming weight distance from hamming weights.

use swar::*;

// All combinations of inputs 0-2 (hamming weights)
let a = Bits2(0b00_01_10_00_01_10_00_01_10u128);
let b = Bits2(0b00_00_00_01_01_01_10_10_10u128);
// Expected output weights
let e = Bits2(0b00_01_10_01_00_01_10_01_00u128);

assert_eq!(a.hwd(b), e, "got hamming distances {:b} expected {:b}", a.hwd(b).0, e.0);

pub fn split(self) -> (Bits2x4<u128>, Bits2x4<u128>)

Trait Implementations

impl<N: Copy> Copy for Bits2<N>

impl<N: Debug> Debug for Bits2<N>

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

Formats the value using the given formatter.

impl<N: PartialEq> PartialEq<Bits2<N>> for Bits2<N>

fn eq(&self, other: &Bits2<N>) -> bool

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

fn ne(&self, other: &Bits2<N>) -> bool

This method tests for !=.

impl<N: Eq> Eq for Bits2<N>

impl<N> From<Bits1x2<N>> for Bits2<N>

fn from(n: Bits1x2<N>) -> Self

Performs the conversion.

impl BitAnd<u128> for Bits2<u128>

type Output = Self

The resulting type after applying the & operator.

fn bitand(self, rhs: u128) -> Self

Performs the & operation.

impl Shr<u32> for Bits2<u128>

type Output = Self

The resulting type after applying the >> operator.

fn shr(self, rhs: u32) -> Self

Performs the >> operation.

impl<N: Clone> Clone for Bits2<N>

fn clone(&self) -> Bits2<N>

Returns a copy of the value.

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

Performs copy-assignment from source.