mirror of
https://github.com/RobTillaart/Arduino.git
synced 2024-10-03 18:09:02 -04:00
65 lines
1.1 KiB
C++
65 lines
1.1 KiB
C++
#pragma once
|
|
//
|
|
// FILE: Adler.h
|
|
// AUTHOR: Rob Tillaart
|
|
// VERSION: 0.1.2
|
|
// DATE: 2022-01-27
|
|
// PURPOSE: Arduino Library for calculating Adler-32 checksum
|
|
// URL: https://github.com/RobTillaart/Adler
|
|
// https://en.wikipedia.org/wiki/Adler-32
|
|
|
|
|
|
#include "Arduino.h"
|
|
|
|
|
|
#define ADLER32_LIB_VERSION (F("0.1.2"))
|
|
|
|
|
|
const uint16_t ADLER32_MOD_PRIME = 65521;
|
|
|
|
|
|
|
|
/////////////////////////////////////////////////
|
|
//
|
|
// STATIC FUNCTIONS
|
|
//
|
|
uint32_t adler32(uint8_t *data, uint16_t length);
|
|
|
|
|
|
|
|
/////////////////////////////////////////////////
|
|
//
|
|
// CLASS VERSION
|
|
//
|
|
class Adler32
|
|
{
|
|
public:
|
|
Adler32();
|
|
|
|
void begin(uint32_t s1 = 1, uint32_t s2 = 0);
|
|
|
|
void add(uint8_t value);
|
|
void add(uint8_t * array, uint16_t length);
|
|
// trade PROGMEM for speed
|
|
void addFast(uint8_t * array, uint16_t length);
|
|
|
|
// wrappers for strings
|
|
void add(char value);
|
|
void add(char * array, uint16_t length);
|
|
void addFast(char * array, uint16_t length);
|
|
|
|
|
|
uint32_t getAdler();
|
|
uint32_t count() { return _count; };
|
|
|
|
private:
|
|
uint32_t _s1;
|
|
uint32_t _s2;
|
|
uint32_t _count;
|
|
};
|
|
|
|
|
|
// -- END OF FILE --
|
|
|
|
|