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comparison src/win32/7zip/7z/C/7zCrc.h @ 1:f9f4f1b99eed

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importing src directory
author Robert McIntyre <rlm@mit.edu>
date Sat, 03 Mar 2012 10:31:27 -0600
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0:8ced16adf2e1 1:f9f4f1b99eed
1 /* 7zCrc.h -- CRC32 calculation
2 2008-03-13
3 Igor Pavlov
4 Public domain */
5
6 #ifndef __7Z_CRC_H
7 #define __7Z_CRC_H
8
9 #include <stddef.h>
10
11 #include "Types.h"
12
13 extern UInt32 g_CrcTable[];
14
15 void MY_FAST_CALL CrcGenerateTable(void);
16
17 #define CRC_INIT_VAL 0xFFFFFFFF
18 #define CRC_GET_DIGEST(crc) ((crc) ^ 0xFFFFFFFF)
19 #define CRC_UPDATE_BYTE(crc, b) (g_CrcTable[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
20
21 UInt32 MY_FAST_CALL CrcUpdate(UInt32 crc, const void *data, size_t size);
22 UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size);
23
24 #endif