1 /* 7zCrc.h */

     2 

     3 #ifndef __7Z_CRC_H

     4 #define __7Z_CRC_H

     5 

     6 #include <stddef.h>

     7 

     8 #include "Types.h"

     9 

    10 extern UInt32 g_CrcTable[];

    11 

    12 void MY_FAST_CALL CrcGenerateTable(void);

    13 

    14 #define CRC_INIT_VAL 0xFFFFFFFF

    15 #define CRC_GET_DIGEST(crc) ((crc) ^ 0xFFFFFFFF)

    16 #define CRC_UPDATE_BYTE(crc, b) (g_CrcTable[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))

    17 

    18 UInt32 MY_FAST_CALL CrcUpdate(UInt32 crc, const void *data, size_t size);

    19 UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size);

    20 

    21 #endif