/usr/include/lzma/LzHash.h is in lzma-dev 9.22-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | /* LzHash.h -- HASH functions for LZ algorithms
2009-02-07 : Igor Pavlov : Public domain */
#ifndef __LZ_HASH_H
#define __LZ_HASH_H
#define kHash2Size (1 << 10)
#define kHash3Size (1 << 16)
#define kHash4Size (1 << 20)
#define kFix3HashSize (kHash2Size)
#define kFix4HashSize (kHash2Size + kHash3Size)
#define kFix5HashSize (kHash2Size + kHash3Size + kHash4Size)
#define HASH2_CALC hashValue = cur[0] | ((UInt32)cur[1] << 8);
#define HASH3_CALC { \
UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
hash2Value = temp & (kHash2Size - 1); \
hashValue = (temp ^ ((UInt32)cur[2] << 8)) & p->hashMask; }
#define HASH4_CALC { \
UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
hash2Value = temp & (kHash2Size - 1); \
hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \
hashValue = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)) & p->hashMask; }
#define HASH5_CALC { \
UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
hash2Value = temp & (kHash2Size - 1); \
hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \
hash4Value = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)); \
hashValue = (hash4Value ^ (p->crc[cur[4]] << 3)) & p->hashMask; \
hash4Value &= (kHash4Size - 1); }
/* #define HASH_ZIP_CALC hashValue = ((cur[0] | ((UInt32)cur[1] << 8)) ^ p->crc[cur[2]]) & 0xFFFF; */
#define HASH_ZIP_CALC hashValue = ((cur[2] | ((UInt32)cur[0] << 8)) ^ p->crc[cur[1]]) & 0xFFFF;
#define MT_HASH2_CALC \
hash2Value = (p->crc[cur[0]] ^ cur[1]) & (kHash2Size - 1);
#define MT_HASH3_CALC { \
UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
hash2Value = temp & (kHash2Size - 1); \
hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); }
#define MT_HASH4_CALC { \
UInt32 temp = p->crc[cur[0]] ^ cur[1]; \
hash2Value = temp & (kHash2Size - 1); \
hash3Value = (temp ^ ((UInt32)cur[2] << 8)) & (kHash3Size - 1); \
hash4Value = (temp ^ ((UInt32)cur[2] << 8) ^ (p->crc[cur[3]] << 5)) & (kHash4Size - 1); }
#endif
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