crc32

Constants

• crc_table : Uint32Array

Functions

• update_crc(input_crc, buffer, offset, length) ⇒ number

Update a running CRC with the bytes buf[0..len-1]--the CRC should be initialized to all 1's, and the transmitted value is the 1's complement of the final running CRC (see the crc32() routine below)).

• crc32(buffer, [offset], [length]) ⇒ number

32-bit Cyclic Redundancy Checksum.

crc_table : Uint32Array

Kind: global constant

update_crc(input_crc, buffer, offset, length) ⇒ number

Update a running CRC with the bytes buf[0..len-1]--the CRC should be initialized to all 1's, and the transmitted value is the 1's complement of the final running CRC (see the crc32() routine below)).

Kind: global function

Param	Type	Description
input_crc	number	starting CRC value
buffer	Uint8Array
offset	number
length	number

crc32(buffer, [offset], [length]) ⇒ number

32-bit Cyclic Redundancy Checksum.

Kind: global function
Returns: number - Unsigned 32-bit integer value
See: https://en.wikipedia.org/wiki/Cyclic_redundancy_check
Copyright: Company Named Limited (c) 2025

Param	Type	Default	Description
buffer	Uint8Array		byte buffer
[offset]	number	0	where to start in the input buffer
[length]	number	buffer.length	how many bytes to include in checksum calculation

Example

const buffer = new BinaryBuffer();
     buffer.writeASCIIString("Hello World");
     const checksum = crc32(buffer.raw_bytes, 0, buffer.position);