libz-crc32.c File Reference

#include <stdint.h>

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Macros
#define	_S_CRC32_H
#define	DO1_CRC32(buf)   crc = crc_table[((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8);
#define	DO2_CRC32(buf)   DO1_CRC32(buf); DO1_CRC32(buf);
#define	DO4_CRC32(buf)   DO2_CRC32(buf); DO2_CRC32(buf);
#define	DO8_CRC32(buf)   DO4_CRC32(buf); DO4_CRC32(buf);

Functions
unsigned long	crc32 (unsigned long crc, const unsigned char *buf, unsigned int len)
const uint32_t *	get_crc_table (void)

Variables
static const unsigned long	crc_table [256]

Macro Definition Documentation

_S_CRC32_H

#define _S_CRC32_H

DO1_CRC32

#define DO1_CRC32

(

buf

)

crc = crc_table[((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8);

DO2_CRC32

#define DO2_CRC32

(

buf

)

DO1_CRC32(buf); DO1_CRC32(buf);

DO4_CRC32

#define DO4_CRC32

(

buf

)

DO2_CRC32(buf); DO2_CRC32(buf);

DO8_CRC32

#define DO8_CRC32

(

buf

)

DO4_CRC32(buf); DO4_CRC32(buf);

Function Documentation

crc32()

unsigned long crc32	(	unsigned long	crc,
		const unsigned char *	buf,
		unsigned int	len
	)

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get_crc_table()

const uint32_t* get_crc_table

(

void

)

Variable Documentation

crc_table

const unsigned long crc_table[256]

static