Struct MinCdcHash4 

pub struct MinCdcHash4 { /* private fields */ }

An instance of MinCDCHash4.

This chooses the first splitpoint i where hash(u32::from_le_bytes(bytes[i-4..i])) is minimized, where hash(v) = v.wrapping_mul(multiplier).wrapping_add(addend).

Implementations

impl MinCdcHash4

pub const fn new() -> Self

Create a new instance of MinCDCHash4 with the default hash parameters.

pub const fn with_params(multiplier: u32, addend: u32) -> Self

Create a new instance of MinCDCHash4, specifying the hash parameters.

Panics

Panics if the multiplier isn’t odd. An even multiplier is always strictly worse.

Trait Implementations

impl Cdc for MinCdcHash4

fn window_size(&self) -> usize

The amount of bytes needed before position i to determine if i is a splitpoint.

fn best_splitpoint(&self, bytes: &[u8]) -> usize

Returns the best splitpoint i <= bytes.len(), indicating bytes is to be split into bytes[..i] and bytes[i..].

impl Clone for MinCdcHash4

fn clone(&self) -> MinCdcHash4

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MinCdcHash4

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

Formats the value using the given formatter.

impl Default for MinCdcHash4

fn default() -> Self

Returns the “default value” for a type.

impl Copy for MinCdcHash4