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30 lines
689 B
C
30 lines
689 B
C
/* 7zCrc.h -- CRC32 calculation
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2009-11-21 : Igor Pavlov : Public domain */
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#ifndef __7Z_CRC_H
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#define __7Z_CRC_H
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#include "Types.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern uint32_t g_CrcTable[];
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/* Call CrcGenerateTable one time before other CRC functions */
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void MY_FAST_CALL CrcGenerateTable(void);
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#define CRC_INIT_VAL 0xFFFFFFFF
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#define CRC_GET_DIGEST(crc) ((crc) ^ CRC_INIT_VAL)
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#define CRC_UPDATE_BYTE(crc, b) (g_CrcTable[((crc) ^ (b)) & 0xFF] ^ ((crc) >> 8))
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uint32_t MY_FAST_CALL CrcUpdate(uint32_t crc, const void *data, size_t size);
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uint32_t MY_FAST_CALL CrcCalc(const void *data, size_t size);
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#ifdef __cplusplus
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}
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#endif
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#endif
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