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