Struct VTable 

pub struct VTable { /* private fields */ }

A distance VTable for a PaddedTable.

See: PaddedTable::vtable.

Implementations

impl VTable

pub fn distance( &self, padded: &PaddedTable, vector: &[f32], codes: &[u8], ) -> Result<f32, DistanceError>

Compute the distance between vector and the PQ vector encoded by codes.

Errors

Returns an error if:

• vector.len() != padded.dim()
• codes.len() != padded.nchunks()
• Any element in codes is equal to or greater than padded.ncenters().

In addition, an error may be returned if self was created for a different PaddedTable. Mixing VTables in this way is not a safety issue, but is also not guaranteed to work.

pub fn self_distance( &self, padded: &PaddedTable, a: &[u8], b: &[u8], ) -> Result<f32, SelfDistanceError>

Compute the distance between two compressed vectors.

Errors

Returns an error if:

• a.len() != padded.nchunks()
• b.len() != padded.nchunks()
• Any element in a or b is equal to or greater than padded.ncenters().

In addition, an error may be returned if self was created for a different PaddedTable. Mixing VTables in this way is not a safety issue, but is also not guaranteed to work.

Trait Implementations

impl Clone for VTable

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for VTable

impl Debug for VTable

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

Formats the value using the given formatter.