/**
 * @file di/crc.h
 * @brief Cyclic-reduncancy checks
 * @date Mar 23, 2016
 * @author jjacobs
 * @copyright 2016 Dual Inventive Technology Centre B.V.
 *
 * descr
 */
#ifndef INCLUDE_DI_CRC_H_
#define INCLUDE_DI_CRC_H_

#ifdef __cplusplus
extern "C" {
#endif

/** CRC-16-CCITT-FALSE, IV 0xffff, Poly 0x1021
 * See http://reveng.sourceforge.net/crc-catalogue/16.htm#crc.cat.crc-16-ccitt-false
 */
uint16_t di_crc16_ccitt(const void *msg, size_t n);

uint16_t di_crc16_ccitt_new(void);
void di_crc16_ccitt_update(uint16_t *crc, const void *msg, size_t size);
uint16_t di_crc16_ccitt_digest(uint16_t crc);

#ifdef __cplusplus
}
#endif

#endif /* INCLUDE_DI_CRC_H_ */