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1 | /* 7zCrc.h -- CRC32 calculation\r |
2 | 2013-01-18 : Igor Pavlov : Public domain */\r |
3 | \r |
4 | #ifndef __7Z_CRC_H\r |
5 | #define __7Z_CRC_H\r |
6 | \r |
7 | #include "7zTypes.h"\r |
8 | \r |
9 | EXTERN_C_BEGIN\r |
10 | \r |
11 | extern UInt32 g_CrcTable[];\r |
12 | \r |
13 | /* Call CrcGenerateTable one time before other CRC functions */\r |
14 | void MY_FAST_CALL CrcGenerateTable(void);\r |
15 | \r |
16 | #define CRC_INIT_VAL 0xFFFFFFFF\r |
17 | #define CRC_GET_DIGEST(crc) ((crc) ^ CRC_INIT_VAL)\r |
18 | #define CRC_UPDATE_BYTE(crc, b) (g_CrcTable[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))\r |
19 | \r |
20 | UInt32 MY_FAST_CALL CrcUpdate(UInt32 crc, const void *data, size_t size);\r |
21 | UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size);\r |
22 | \r |
23 | EXTERN_C_END\r |
24 | \r |
25 | #endif\r |