third_party/lzma_sdk/C/7zCrc.h - Issue 6730044: Upgrading lzma_sdk to version 9.20.

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

Issue 6730044: Upgrading lzma_sdk to version 9.20. Base URL: svn://chrome-svn.corp.google.com/chrome/trunk/src/

Patch Set: '' Created 9 years, 8 months ago

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	1 /* 7zCrc.h -- CRC32 calculation

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

	3

	4 #ifndef __7Z_CRC_H

	5 #define __7Z_CRC_H

	6

	7 #include "Types.h"

	8

	9 EXTERN_C_BEGIN

	10

	11 extern UInt32 g_CrcTable[];

	12

	13 /* Call CrcGenerateTable one time before other CRC functions */

	14 void MY_FAST_CALL CrcGenerateTable(void);

	15

	16 #define CRC_INIT_VAL 0xFFFFFFFF

	17 #define CRC_GET_DIGEST(crc) ((crc) ^ CRC_INIT_VAL)

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

	19

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

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

	22

	23 EXTERN_C_END

	24

	25 #endif

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