blob: 3812a83f971fd8a43f8fc4b8e335479ce54888e2 (
plain) (
tree)
|
|
/*-
* COPYRIGHT (C) 1986 Gary S. Brown. You may use this program, or
* code or tables extracted from it, as desired without restriction.
*
* $FreeBSD$
*/
#ifndef _CRC32_H_
#define _CRC32_H_
#include <stdint.h> /* uint32_t */
#include <stdlib.h> /* size_t */
extern uint32_t crc32_tab[];
static __inline uint32_t
crc32(const void *buf, size_t size)
{
const uint8_t *p = buf;
uint32_t crc;
crc = ~0U;
while (size--)
crc = crc32_tab[(crc ^ *p++) & 0xFF] ^ (crc >> 8);
return (crc ^ ~0U);
}
#endif /* !_CRC32_H_ */
|
