Struct Metadata 

pub struct Metadata { /* private fields */ }

8-byte header at the start of a DiskANN binary file: npoints and ndims as little-endian u32.

Implementations

impl Metadata

pub fn new<T, U>( npoints: T, ndims: U, ) -> Result<Self, MetadataError<T::Error, U::Error>>

where T: TryInto<u32>, U: TryInto<u32>,

Construct from any integer types that fit in u32.

pub fn npoints(&self) -> usize

Number of points as usize.

pub fn npoints_u32(&self) -> u32

Number of points as u32.

pub fn ndims(&self) -> usize

Number of dimensions as usize.

pub fn ndims_u32(&self) -> u32

Number of dimensions as u32.

pub fn into_dims(&self) -> (usize, usize)

Destructure into (npoints, ndims) as usize.

pub fn read<R>(reader: &mut R) -> Result<Self>

where R: Read,

Deserialize the 8-byte header from a reader.

pub fn write<W>(&self, writer: &mut W) -> Result<usize>

where W: Write,

Serialize the 8-byte header to a writer. Returns the number of bytes written (always 8).

Trait Implementations

impl Clone for Metadata

fn clone(&self) -> Metadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Metadata

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

Formats the value using the given formatter.

impl PartialEq for Metadata

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for Metadata

impl Eq for Metadata

impl StructuralPartialEq for Metadata