Enum Bits 

pub enum Bits {
    One,
    Four,
}

How many bits a coordinate is rounded to.

Variants

One

The sign, which is 96 bytes for a 768 dimensional vector.

Four

Sixteen levels, which is 384 bytes for the same vector and about a quarter of the error.

Implementations

impl Bits

pub fn count(self) -> usize

How many bits one coordinate takes, which is also how many planes a code is written in.

pub fn query_bits(self) -> usize

How many bits a query is quantised to before it is scanned against codes this wide.

Four bits either side is what RaBitQ specifies, and it is right for a one bit code and wrong for a four bit one, because a four bit code is ten times more accurate and a four bit query is not. Eight is what puts the query’s error back under the code’s, and the cost is four more ANDs and four more popcounts per word on the path that was already paying for four times the bytes.

Trait Implementations

impl Clone for Bits

fn clone(&self) -> Bits

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Bits

impl Debug for Bits

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

Formats the value using the given formatter.

impl Eq for Bits

impl PartialEq for Bits

fn eq(&self, other: &Bits) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Bits