Struct CrcTable 

pub struct CrcTable { /* private fields */ }

Precomputed 256-entry CRC-32 lookup table.

Implementations

impl CrcTable

pub fn new() -> Self

Build the CRC-32 lookup table.

pub fn checksum(&self, data: &[u8]) -> u32

Compute CRC-32 of a byte slice.

pub fn update(&self, crc: u32, data: &[u8]) -> u32

Update an ongoing CRC computation with more bytes.

pub fn combine(&self, crc1: u32, crc2: u32, len2: usize) -> u32

Combine two CRC values for independent byte sequences. This is an approximation: re-run is always more accurate.

pub fn entry(&self, i: usize) -> u32

Return the raw table entry for byte index i.

pub fn verify(&self, data: &[u8], expected: u32) -> bool

True if data has the expected CRC.

Trait Implementations

impl Default for CrcTable

fn default() -> Self

Returns the “default value” for a type.