45 lines
910 B
C
45 lines
910 B
C
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//***************************************************************************
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//
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// (c) 1999-2001 by Microsoft Corp. All Rights Reserved.
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//
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// crc64.h
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//
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// cvadai 12-Nov-1999 created
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//
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//***************************************************************************
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#ifndef _CRC64_H_
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#define _CRC64_H_
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#define TESTHSIZE (4 * 1024 * 1024)
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#define TESTHMASK (TESTHSIZE - 1)
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#define HINIT1 0xFAC432B1UL
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#define HINIT2 0x0CD5E44AUL
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#define POLY1 0x00600340UL
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#define POLY2 0x00F0D50BUL
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typedef unsigned int hint_t; /* we want a 32 bit unsigned integer here */
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typedef __int64 hash_t ;
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class POLARITY CRC64
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{
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public:
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static hash_t GenerateHashValue(const wchar_t *p);
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private:
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static void Initialize(void);
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static void * RMalloc(int bytes);
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CRC64() {};
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~CRC64() {};
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static BOOL bInit;
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static hash_t CrcXor[256];
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static hash_t Poly[64+1];
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};
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#endif
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