XzCrc64.h

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/* XzCrc64.h -- CRC64 calculation
2023-04-02 : Igor Pavlov : Public domain */
 
#ifndef ZIP7_INC_XZ_CRC64_H
#define ZIP7_INC_XZ_CRC64_H
 
#include <stddef.h>
 
#include "7zTypes.h"
 
EXTERN_C_BEGIN
 
extern UInt64 g_Crc64Table[];
 
void Z7_FASTCALL Crc64GenerateTable(void);
 
#define CRC64_INIT_VAL UINT64_CONST(0xFFFFFFFFFFFFFFFF)
#define CRC64_GET_DIGEST(crc) ((crc) ^ CRC64_INIT_VAL)
#define CRC64_UPDATE_BYTE(crc, b) (g_Crc64Table[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
 
UInt64 Z7_FASTCALL Crc64Update(UInt64 crc, const void *data, size_t size);
UInt64 Z7_FASTCALL Crc64Calc(const void *data, size_t size);
 
EXTERN_C_END
 
#endif