third_party/lzma_sdk/7zCrc.h - Issue 10152012: Second attempt to update lzma_sdk to 9.20

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Side by Side Diff: third_party/lzma_sdk/7zCrc.h

Issue 10152012: Second attempt to update lzma_sdk to 9.20 (Closed) Base URL: http://git.chromium.org/chromium/src.git@master

Patch Set: Created 8 years, 8 months ago

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1 /* 7zCrc.h */	1 /* 7zCrc.h -- CRC32 calculation

	2 2009-11-21 : Igor Pavlov : Public domain */

2	3

3 #ifndef __7Z_CRC_H	4 #ifndef __7Z_CRC_H

4 #define __7Z_CRC_H	5 #define __7Z_CRC_H

5	6

6 #include <stddef.h>	7 #include "Types.h"

7	8

8 #include "Types.h"	9 EXTERN_C_BEGIN

9	10

10 extern UInt32 g_CrcTable[];	11 extern UInt32 g_CrcTable[];

11	12

12 void MY_FAST_CALL CrcGenerateTable();	13 /* Call CrcGenerateTable one time before other CRC functions */

	14 void MY_FAST_CALL CrcGenerateTable(void);

13	15

14 #define CRC_INIT_VAL 0xFFFFFFFF	16 #define CRC_INIT_VAL 0xFFFFFFFF

15 #define CRC_GET_DIGEST(crc) ((crc) ^ 0xFFFFFFFF)	17 #define CRC_GET_DIGEST(crc) ((crc) ^ CRC_INIT_VAL)

16 #define CRC_UPDATE_BYTE(crc, b) (g_CrcTable[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8) )	18 #define CRC_UPDATE_BYTE(crc, b) (g_CrcTable[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8) )

17	19

18 UInt32 MY_FAST_CALL CrcUpdate(UInt32 crc, const void *data, size_t size);	20 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);	21 UInt32 MY_FAST_CALL CrcCalc(const void *data, size_t size);

20	22

	23 EXTERN_C_END

	24

21 #endif	25 #endif

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