1 /* XzCrc64.h -- CRC64 calculation 2 2013-01-18 : Igor Pavlov : Public domain */ 3 4 #ifndef __XZ_CRC64_H 5 #define __XZ_CRC64_H 6 7 #include <stddef.h> 8 9 #include "7zTypes.h" 10 11 EXTERN_C_BEGIN 12 13 extern UInt64 g_Crc64Table[]; 14 15 void MY_FAST_CALL Crc64GenerateTable(void); 16 17 #define CRC64_INIT_VAL UINT64_CONST(0xFFFFFFFFFFFFFFFF) 18 #define CRC64_GET_DIGEST(crc) ((crc) ^ CRC64_INIT_VAL) 19 #define CRC64_UPDATE_BYTE(crc, b) (g_Crc64Table[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8)) 20 21 UInt64 MY_FAST_CALL Crc64Update(UInt64 crc, const void *data, size_t size); 22 UInt64 MY_FAST_CALL Crc64Calc(const void *data, size_t size); 23 24 EXTERN_C_END 25 26 #endif 27
