Updating to new OTS repo from https://github.com/khaledhosny/ots.git

third_party/lzma_sdk/LzFind.c

Index: third_party/lzma_sdk/LzFind.c
diff --git a/third_party/lzma_sdk/LzFind.c b/third_party/lzma_sdk/LzFind.c
deleted file mode 100644
index f33f1c6b594a635c9ced1ab6bc3ea398cfe5ab72..0000000000000000000000000000000000000000
--- a/third_party/lzma_sdk/LzFind.c
+++ /dev/null
@@ -1,762 +0,0 @@
-/* LzFind.c -- Match finder for LZ algorithms
-2009-04-22 : Igor Pavlov : Public domain
-in the public domain */
-
-#include <string.h>
-
-#include "LzFind.h"
-#include "LzHash.h"
-
-#define kEmptyHashValue 0
-#define kMaxValForNormalize ((UInt32)0xFFFFFFFF)
-#define kNormalizeStepMin (1 << 10) /* it must be power of 2 */
-#define kNormalizeMask (~(kNormalizeStepMin - 1))
-#define kMaxHistorySize ((UInt32)3 << 30)
-
-#define kStartMaxLen 3
-
-static void LzInWindow_Free(CMatchFinder *p, ISzAlloc *alloc)
-{
-  if (!p->directInput)
-  {
-    alloc->Free(alloc, p->bufferBase);
-    p->bufferBase = 0;
-  }
-}
-
-/* keepSizeBefore + keepSizeAfter + keepSizeReserv must be < 4G) */
-
-static int LzInWindow_Create(CMatchFinder *p, UInt32 keepSizeReserv, ISzAlloc *alloc)
-{
-  UInt32 blockSize = p->keepSizeBefore + p->keepSizeAfter + keepSizeReserv;
-  if (p->directInput)
-  {
-    p->blockSize = blockSize;
-    return 1;
-  }
-  if (p->bufferBase == 0 || p->blockSize != blockSize)
-  {
-    LzInWindow_Free(p, alloc);
-    p->blockSize = blockSize;
-    p->bufferBase = (Byte *)alloc->Alloc(alloc, (size_t)blockSize);
-  }
-  return (p->bufferBase != 0);
-}
-
-Byte *MatchFinder_GetPointerToCurrentPos(CMatchFinder *p) { return p->buffer; }
-Byte MatchFinder_GetIndexByte(CMatchFinder *p, Int32 index) { return p->buffer[index]; }
-
-UInt32 MatchFinder_GetNumAvailableBytes(CMatchFinder *p) { return p->streamPos - p->pos; }
-
-void MatchFinder_ReduceOffsets(CMatchFinder *p, UInt32 subValue)
-{
-  p->posLimit -= subValue;
-  p->pos -= subValue;
-  p->streamPos -= subValue;
-}
-
-static void MatchFinder_ReadBlock(CMatchFinder *p)
-{
-  if (p->streamEndWasReached || p->result != SZ_OK)
-    return;
-  if (p->directInput)
-  {
-    UInt32 curSize = 0xFFFFFFFF - p->streamPos;
-    if (curSize > p->directInputRem)
-      curSize = (UInt32)p->directInputRem;
-    p->directInputRem -= curSize;
-    p->streamPos += curSize;
-    if (p->directInputRem == 0)
-      p->streamEndWasReached = 1;
-    return;
-  }
-  for (;;)
-  {
-    Byte *dest = p->buffer + (p->streamPos - p->pos);
-    size_t size = (p->bufferBase + p->blockSize - dest);
-    if (size == 0)
-      return;
-    p->result = p->stream->Read(p->stream, dest, &size);
-    if (p->result != SZ_OK)
-      return;
-    if (size == 0)
-    {
-      p->streamEndWasReached = 1;
-      return;
-    }
-    p->streamPos += (UInt32)size;
-    if (p->streamPos - p->pos > p->keepSizeAfter)
-      return;
-  }
-}
-
-void MatchFinder_MoveBlock(CMatchFinder *p)
-{
-  memmove(p->bufferBase,
-    p->buffer - p->keepSizeBefore,
-    (size_t)(p->streamPos - p->pos + p->keepSizeBefore));
-  p->buffer = p->bufferBase + p->keepSizeBefore;
-}
-
-int MatchFinder_NeedMove(CMatchFinder *p)
-{
-  if (p->directInput)
-    return 0;
-  /* if (p->streamEndWasReached) return 0; */
-  return ((size_t)(p->bufferBase + p->blockSize - p->buffer) <= p->keepSizeAfter);
-}
-
-void MatchFinder_ReadIfRequired(CMatchFinder *p)
-{
-  if (p->streamEndWasReached)
-    return;
-  if (p->keepSizeAfter >= p->streamPos - p->pos)
-    MatchFinder_ReadBlock(p);
-}
-
-static void MatchFinder_CheckAndMoveAndRead(CMatchFinder *p)
-{
-  if (MatchFinder_NeedMove(p))
-    MatchFinder_MoveBlock(p);
-  MatchFinder_ReadBlock(p);
-}
-
-static void MatchFinder_SetDefaultSettings(CMatchFinder *p)
-{
-  p->cutValue = 32;
-  p->btMode = 1;
-  p->numHashBytes = 4;
-  p->bigHash = 0;
-}
-
-#define kCrcPoly 0xEDB88320
-
-void MatchFinder_Construct(CMatchFinder *p)
-{
-  UInt32 i;
-  p->bufferBase = 0;
-  p->directInput = 0;
-  p->hash = 0;
-  MatchFinder_SetDefaultSettings(p);
-
-  for (i = 0; i < 256; i++)
-  {
-    UInt32 r = i;
-    int j;
-    for (j = 0; j < 8; j++)
-      r = (r >> 1) ^ (kCrcPoly & ~((r & 1) - 1));
-    p->crc[i] = r;
-  }
-}
-
-static void MatchFinder_FreeThisClassMemory(CMatchFinder *p, ISzAlloc *alloc)
-{
-  alloc->Free(alloc, p->hash);
-  p->hash = 0;
-}
-
-void MatchFinder_Free(CMatchFinder *p, ISzAlloc *alloc)
-{
-  MatchFinder_FreeThisClassMemory(p, alloc);
-  LzInWindow_Free(p, alloc);
-}
-
-static CLzRef* AllocRefs(UInt32 num, ISzAlloc *alloc)
-{
-  size_t sizeInBytes = (size_t)num * sizeof(CLzRef);
-  if (sizeInBytes / sizeof(CLzRef) != num)
-    return 0;
-  return (CLzRef *)alloc->Alloc(alloc, sizeInBytes);
-}
-
-int MatchFinder_Create(CMatchFinder *p, UInt32 historySize,
-    UInt32 keepAddBufferBefore, UInt32 matchMaxLen, UInt32 keepAddBufferAfter,
-    ISzAlloc *alloc)
-{
-  UInt32 sizeReserv;
-  if (historySize > kMaxHistorySize)
-  {
-    MatchFinder_Free(p, alloc);
-    return 0;
-  }
-  sizeReserv = historySize >> 1;
-  if (historySize > ((UInt32)2 << 30))
-    sizeReserv = historySize >> 2;
-  sizeReserv += (keepAddBufferBefore + matchMaxLen + keepAddBufferAfter) / 2 + (1 << 19);
-
-  p->keepSizeBefore = historySize + keepAddBufferBefore + 1;
-  p->keepSizeAfter = matchMaxLen + keepAddBufferAfter;
-  /* we need one additional byte, since we use MoveBlock after pos++ and before dictionary using */
-  if (LzInWindow_Create(p, sizeReserv, alloc))
-  {
-    UInt32 newCyclicBufferSize = historySize + 1;
-    UInt32 hs;
-    p->matchMaxLen = matchMaxLen;
-    {
-      p->fixedHashSize = 0;
-      if (p->numHashBytes == 2)
-        hs = (1 << 16) - 1;
-      else
-      {
-        hs = historySize - 1;
-        hs |= (hs >> 1);
-        hs |= (hs >> 2);
-        hs |= (hs >> 4);
-        hs |= (hs >> 8);
-        hs >>= 1;
-        hs |= 0xFFFF; /* don't change it! It's required for Deflate */
-        if (hs > (1 << 24))
-        {
-          if (p->numHashBytes == 3)
-            hs = (1 << 24) - 1;
-          else
-            hs >>= 1;
-        }
-      }
-      p->hashMask = hs;
-      hs++;
-      if (p->numHashBytes > 2) p->fixedHashSize += kHash2Size;
-      if (p->numHashBytes > 3) p->fixedHashSize += kHash3Size;
-      if (p->numHashBytes > 4) p->fixedHashSize += kHash4Size;
-      hs += p->fixedHashSize;
-    }
-
-    {
-      UInt32 prevSize = p->hashSizeSum + p->numSons;
-      UInt32 newSize;
-      p->historySize = historySize;
-      p->hashSizeSum = hs;
-      p->cyclicBufferSize = newCyclicBufferSize;
-      p->numSons = (p->btMode ? newCyclicBufferSize * 2 : newCyclicBufferSize);
-      newSize = p->hashSizeSum + p->numSons;
-      if (p->hash != 0 && prevSize == newSize)
-        return 1;
-      MatchFinder_FreeThisClassMemory(p, alloc);
-      p->hash = AllocRefs(newSize, alloc);
-      if (p->hash != 0)
-      {
-        p->son = p->hash + p->hashSizeSum;
-        return 1;
-      }
-    }
-  }
-  MatchFinder_Free(p, alloc);
-  return 0;
-}
-
-static void MatchFinder_SetLimits(CMatchFinder *p)
-{
-  UInt32 limit = kMaxValForNormalize - p->pos;
-  UInt32 limit2 = p->cyclicBufferSize - p->cyclicBufferPos;
-  if (limit2 < limit)
-    limit = limit2;
-  limit2 = p->streamPos - p->pos;
-  if (limit2 <= p->keepSizeAfter)
-  {
-    if (limit2 > 0)
-      limit2 = 1;
-  }
-  else
-    limit2 -= p->keepSizeAfter;
-  if (limit2 < limit)
-    limit = limit2;
-  {
-    UInt32 lenLimit = p->streamPos - p->pos;
-    if (lenLimit > p->matchMaxLen)
-      lenLimit = p->matchMaxLen;
-    p->lenLimit = lenLimit;
-  }
-  p->posLimit = p->pos + limit;
-}
-
-void MatchFinder_Init(CMatchFinder *p)
-{
-  UInt32 i;
-  for (i = 0; i < p->hashSizeSum; i++)
-    p->hash[i] = kEmptyHashValue;
-  p->cyclicBufferPos = 0;
-  p->buffer = p->bufferBase;
-  p->pos = p->streamPos = p->cyclicBufferSize;
-  p->result = SZ_OK;
-  p->streamEndWasReached = 0;
-  MatchFinder_ReadBlock(p);
-  MatchFinder_SetLimits(p);
-}
-
-static UInt32 MatchFinder_GetSubValue(CMatchFinder *p)
-{
-  return (p->pos - p->historySize - 1) & kNormalizeMask;
-}
-
-void MatchFinder_Normalize3(UInt32 subValue, CLzRef *items, UInt32 numItems)
-{
-  UInt32 i;
-  for (i = 0; i < numItems; i++)
-  {
-    UInt32 value = items[i];
-    if (value <= subValue)
-      value = kEmptyHashValue;
-    else
-      value -= subValue;
-    items[i] = value;
-  }
-}
-
-static void MatchFinder_Normalize(CMatchFinder *p)
-{
-  UInt32 subValue = MatchFinder_GetSubValue(p);
-  MatchFinder_Normalize3(subValue, p->hash, p->hashSizeSum + p->numSons);
-  MatchFinder_ReduceOffsets(p, subValue);
-}
-
-static void MatchFinder_CheckLimits(CMatchFinder *p)
-{
-  if (p->pos == kMaxValForNormalize)
-    MatchFinder_Normalize(p);
-  if (!p->streamEndWasReached && p->keepSizeAfter == p->streamPos - p->pos)
-    MatchFinder_CheckAndMoveAndRead(p);
-  if (p->cyclicBufferPos == p->cyclicBufferSize)
-    p->cyclicBufferPos = 0;
-  MatchFinder_SetLimits(p);
-}
-
-static UInt32 * Hc_GetMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
-    UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue,
-    UInt32 *distances, UInt32 maxLen)
-{
-  son[_cyclicBufferPos] = curMatch;
-  for (;;)
-  {
-    UInt32 delta = pos - curMatch;
-    if (cutValue-- == 0 || delta >= _cyclicBufferSize)
-      return distances;
-    {
-      const Byte *pb = cur - delta;
-      curMatch = son[_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)];
-      if (pb[maxLen] == cur[maxLen] && *pb == *cur)
-      {
-        UInt32 len = 0;
-        while (++len != lenLimit)
-          if (pb[len] != cur[len])
-            break;
-        if (maxLen < len)
-        {
-          *distances++ = maxLen = len;
-          *distances++ = delta - 1;
-          if (len == lenLimit)
-            return distances;
-        }
-      }
-    }
-  }
-}
-
-UInt32 * GetMatchesSpec1(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
-    UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue,
-    UInt32 *distances, UInt32 maxLen)
-{
-  CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1;
-  CLzRef *ptr1 = son + (_cyclicBufferPos << 1);
-  UInt32 len0 = 0, len1 = 0;
-  for (;;)
-  {
-    UInt32 delta = pos - curMatch;
-    if (cutValue-- == 0 || delta >= _cyclicBufferSize)
-    {
-      *ptr0 = *ptr1 = kEmptyHashValue;
-      return distances;
-    }
-    {
-      CLzRef *pair = son + ((_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)) << 1);
-      const Byte *pb = cur - delta;
-      UInt32 len = (len0 < len1 ? len0 : len1);
-      if (pb[len] == cur[len])
-      {
-        if (++len != lenLimit && pb[len] == cur[len])
-          while (++len != lenLimit)
-            if (pb[len] != cur[len])
-              break;
-        if (maxLen < len)
-        {
-          *distances++ = maxLen = len;
-          *distances++ = delta - 1;
-          if (len == lenLimit)
-          {
-            *ptr1 = pair[0];
-            *ptr0 = pair[1];
-            return distances;
-          }
-        }
-      }
-      if (pb[len] < cur[len])
-      {
-        *ptr1 = curMatch;
-        ptr1 = pair + 1;
-        curMatch = *ptr1;
-        len1 = len;
-      }
-      else
-      {
-        *ptr0 = curMatch;
-        ptr0 = pair;
-        curMatch = *ptr0;
-        len0 = len;
-      }
-    }
-  }
-}
-
-static void SkipMatchesSpec(UInt32 lenLimit, UInt32 curMatch, UInt32 pos, const Byte *cur, CLzRef *son,
-    UInt32 _cyclicBufferPos, UInt32 _cyclicBufferSize, UInt32 cutValue)
-{
-  CLzRef *ptr0 = son + (_cyclicBufferPos << 1) + 1;
-  CLzRef *ptr1 = son + (_cyclicBufferPos << 1);
-  UInt32 len0 = 0, len1 = 0;
-  for (;;)
-  {
-    UInt32 delta = pos - curMatch;
-    if (cutValue-- == 0 || delta >= _cyclicBufferSize)
-    {
-      *ptr0 = *ptr1 = kEmptyHashValue;
-      return;
-    }
-    {
-      CLzRef *pair = son + ((_cyclicBufferPos - delta + ((delta > _cyclicBufferPos) ? _cyclicBufferSize : 0)) << 1);
-      const Byte *pb = cur - delta;
-      UInt32 len = (len0 < len1 ? len0 : len1);
-      if (pb[len] == cur[len])
-      {
-        while (++len != lenLimit)
-          if (pb[len] != cur[len])
-            break;
-        {
-          if (len == lenLimit)
-          {
-            *ptr1 = pair[0];
-            *ptr0 = pair[1];
-            return;
-          }
-        }
-      }
-      if (pb[len] < cur[len])
-      {
-        *ptr1 = curMatch;
-        ptr1 = pair + 1;
-        curMatch = *ptr1;
-        len1 = len;
-      }
-      else
-      {
-        *ptr0 = curMatch;
-        ptr0 = pair;
-        curMatch = *ptr0;
-        len0 = len;
-      }
-    }
-  }
-}
-
-#define MOVE_POS \
-  ++p->cyclicBufferPos; \
-  p->buffer++; \
-  if (++p->pos == p->posLimit) MatchFinder_CheckLimits(p);
-
-#define MOVE_POS_RET MOVE_POS return offset;
-
-static void MatchFinder_MovePos(CMatchFinder *p) { MOVE_POS; }
-
-#define GET_MATCHES_HEADER2(minLen, ret_op) \
-  UInt32 lenLimit; UInt32 hashValue; const Byte *cur; UInt32 curMatch; \
-  lenLimit = p->lenLimit; { if (lenLimit < minLen) { MatchFinder_MovePos(p); ret_op; }} \
-  cur = p->buffer;
-
-#define GET_MATCHES_HEADER(minLen) GET_MATCHES_HEADER2(minLen, return 0)
-#define SKIP_HEADER(minLen)        GET_MATCHES_HEADER2(minLen, continue)
-
-#define MF_PARAMS(p) p->pos, p->buffer, p->son, p->cyclicBufferPos, p->cyclicBufferSize, p->cutValue
-
-#define GET_MATCHES_FOOTER(offset, maxLen) \
-  offset = (UInt32)(GetMatchesSpec1(lenLimit, curMatch, MF_PARAMS(p), \
-  distances + offset, maxLen) - distances); MOVE_POS_RET;
-
-#define SKIP_FOOTER \
-  SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p)); MOVE_POS;
-
-static UInt32 Bt2_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
-{
-  UInt32 offset;
-  GET_MATCHES_HEADER(2)
-  HASH2_CALC;
-  curMatch = p->hash[hashValue];
-  p->hash[hashValue] = p->pos;
-  offset = 0;
-  GET_MATCHES_FOOTER(offset, 1)
-}
-
-UInt32 Bt3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
-{
-  UInt32 offset;
-  GET_MATCHES_HEADER(3)
-  HASH_ZIP_CALC;
-  curMatch = p->hash[hashValue];
-  p->hash[hashValue] = p->pos;
-  offset = 0;
-  GET_MATCHES_FOOTER(offset, 2)
-}
-
-static UInt32 Bt3_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
-{
-  UInt32 hash2Value, delta2, maxLen, offset;
-  GET_MATCHES_HEADER(3)
-
-  HASH3_CALC;
-
-  delta2 = p->pos - p->hash[hash2Value];
-  curMatch = p->hash[kFix3HashSize + hashValue];
-  
-  p->hash[hash2Value] =
-  p->hash[kFix3HashSize + hashValue] = p->pos;
-
-
-  maxLen = 2;
-  offset = 0;
-  if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
-  {
-    for (; maxLen != lenLimit; maxLen++)
-      if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
-        break;
-    distances[0] = maxLen;
-    distances[1] = delta2 - 1;
-    offset = 2;
-    if (maxLen == lenLimit)
-    {
-      SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p));
-      MOVE_POS_RET;
-    }
-  }
-  GET_MATCHES_FOOTER(offset, maxLen)
-}
-
-static UInt32 Bt4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
-{
-  UInt32 hash2Value, hash3Value, delta2, delta3, maxLen, offset;
-  GET_MATCHES_HEADER(4)
-
-  HASH4_CALC;
-
-  delta2 = p->pos - p->hash[                hash2Value];
-  delta3 = p->pos - p->hash[kFix3HashSize + hash3Value];
-  curMatch = p->hash[kFix4HashSize + hashValue];
-  
-  p->hash[                hash2Value] =
-  p->hash[kFix3HashSize + hash3Value] =
-  p->hash[kFix4HashSize + hashValue] = p->pos;
-
-  maxLen = 1;
-  offset = 0;
-  if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
-  {
-    distances[0] = maxLen = 2;
-    distances[1] = delta2 - 1;
-    offset = 2;
-  }
-  if (delta2 != delta3 && delta3 < p->cyclicBufferSize && *(cur - delta3) == *cur)
-  {
-    maxLen = 3;
-    distances[offset + 1] = delta3 - 1;
-    offset += 2;
-    delta2 = delta3;
-  }
-  if (offset != 0)
-  {
-    for (; maxLen != lenLimit; maxLen++)
-      if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
-        break;
-    distances[offset - 2] = maxLen;
-    if (maxLen == lenLimit)
-    {
-      SkipMatchesSpec(lenLimit, curMatch, MF_PARAMS(p));
-      MOVE_POS_RET;
-    }
-  }
-  if (maxLen < 3)
-    maxLen = 3;
-  GET_MATCHES_FOOTER(offset, maxLen)
-}
-
-static UInt32 Hc4_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
-{
-  UInt32 hash2Value, hash3Value, delta2, delta3, maxLen, offset;
-  GET_MATCHES_HEADER(4)
-
-  HASH4_CALC;
-
-  delta2 = p->pos - p->hash[                hash2Value];
-  delta3 = p->pos - p->hash[kFix3HashSize + hash3Value];
-  curMatch = p->hash[kFix4HashSize + hashValue];
-
-  p->hash[                hash2Value] =
-  p->hash[kFix3HashSize + hash3Value] =
-  p->hash[kFix4HashSize + hashValue] = p->pos;
-
-  maxLen = 1;
-  offset = 0;
-  if (delta2 < p->cyclicBufferSize && *(cur - delta2) == *cur)
-  {
-    distances[0] = maxLen = 2;
-    distances[1] = delta2 - 1;
-    offset = 2;
-  }
-  if (delta2 != delta3 && delta3 < p->cyclicBufferSize && *(cur - delta3) == *cur)
-  {
-    maxLen = 3;
-    distances[offset + 1] = delta3 - 1;
-    offset += 2;
-    delta2 = delta3;
-  }
-  if (offset != 0)
-  {
-    for (; maxLen != lenLimit; maxLen++)
-      if (cur[(ptrdiff_t)maxLen - delta2] != cur[maxLen])
-        break;
-    distances[offset - 2] = maxLen;
-    if (maxLen == lenLimit)
-    {
-      p->son[p->cyclicBufferPos] = curMatch;
-      MOVE_POS_RET;
-    }
-  }
-  if (maxLen < 3)
-    maxLen = 3;
-  offset = (UInt32)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p),
-    distances + offset, maxLen) - (distances));
-  MOVE_POS_RET
-}
-
-UInt32 Hc3Zip_MatchFinder_GetMatches(CMatchFinder *p, UInt32 *distances)
-{
-  UInt32 offset;
-  GET_MATCHES_HEADER(3)
-  HASH_ZIP_CALC;
-  curMatch = p->hash[hashValue];
-  p->hash[hashValue] = p->pos;
-  offset = (UInt32)(Hc_GetMatchesSpec(lenLimit, curMatch, MF_PARAMS(p),
-    distances, 2) - (distances));
-  MOVE_POS_RET
-}
-
-static void Bt2_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
-{
-  do
-  {
-    SKIP_HEADER(2)
-    HASH2_CALC;
-    curMatch = p->hash[hashValue];
-    p->hash[hashValue] = p->pos;
-    SKIP_FOOTER
-  }
-  while (--num != 0);
-}
-
-void Bt3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
-{
-  do
-  {
-    SKIP_HEADER(3)
-    HASH_ZIP_CALC;
-    curMatch = p->hash[hashValue];
-    p->hash[hashValue] = p->pos;
-    SKIP_FOOTER
-  }
-  while (--num != 0);
-}
-
-static void Bt3_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
-{
-  do
-  {
-    UInt32 hash2Value;
-    SKIP_HEADER(3)
-    HASH3_CALC;
-    curMatch = p->hash[kFix3HashSize + hashValue];
-    p->hash[hash2Value] =
-    p->hash[kFix3HashSize + hashValue] = p->pos;
-    SKIP_FOOTER
-  }
-  while (--num != 0);
-}
-
-static void Bt4_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
-{
-  do
-  {
-    UInt32 hash2Value, hash3Value;
-    SKIP_HEADER(4)
-    HASH4_CALC;
-    curMatch = p->hash[kFix4HashSize + hashValue];
-    p->hash[                hash2Value] =
-    p->hash[kFix3HashSize + hash3Value] = p->pos;
-    p->hash[kFix4HashSize + hashValue] = p->pos;
-    SKIP_FOOTER
-  }
-  while (--num != 0);
-}
-
-static void Hc4_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
-{
-  do
-  {
-    UInt32 hash2Value, hash3Value;
-    SKIP_HEADER(4)
-    HASH4_CALC;
-    curMatch = p->hash[kFix4HashSize + hashValue];
-    p->hash[                hash2Value] =
-    p->hash[kFix3HashSize + hash3Value] =
-    p->hash[kFix4HashSize + hashValue] = p->pos;
-    p->son[p->cyclicBufferPos] = curMatch;
-    MOVE_POS
-  }
-  while (--num != 0);
-}
-
-void Hc3Zip_MatchFinder_Skip(CMatchFinder *p, UInt32 num)
-{
-  do
-  {
-    SKIP_HEADER(3)
-    HASH_ZIP_CALC;
-    curMatch = p->hash[hashValue];
-    p->hash[hashValue] = p->pos;
-    p->son[p->cyclicBufferPos] = curMatch;
-    MOVE_POS
-  }
-  while (--num != 0);
-}
-
-void MatchFinder_CreateVTable(CMatchFinder *p, IMatchFinder *vTable)
-{
-  vTable->Init = (Mf_Init_Func)MatchFinder_Init;
-  vTable->GetIndexByte = (Mf_GetIndexByte_Func)MatchFinder_GetIndexByte;
-  vTable->GetNumAvailableBytes = (Mf_GetNumAvailableBytes_Func)MatchFinder_GetNumAvailableBytes;
-  vTable->GetPointerToCurrentPos = (Mf_GetPointerToCurrentPos_Func)MatchFinder_GetPointerToCurrentPos;
-  if (!p->btMode)
-  {
-    vTable->GetMatches = (Mf_GetMatches_Func)Hc4_MatchFinder_GetMatches;
-    vTable->Skip = (Mf_Skip_Func)Hc4_MatchFinder_Skip;
-  }
-  else if (p->numHashBytes == 2)
-  {
-    vTable->GetMatches = (Mf_GetMatches_Func)Bt2_MatchFinder_GetMatches;
-    vTable->Skip = (Mf_Skip_Func)Bt2_MatchFinder_Skip;
-  }
-  else if (p->numHashBytes == 3)
-  {
-    vTable->GetMatches = (Mf_GetMatches_Func)Bt3_MatchFinder_GetMatches;
-    vTable->Skip = (Mf_Skip_Func)Bt3_MatchFinder_Skip;
-  }
-  else
-  {
-    vTable->GetMatches = (Mf_GetMatches_Func)Bt4_MatchFinder_GetMatches;
-    vTable->Skip = (Mf_Skip_Func)Bt4_MatchFinder_Skip;
-  }
-}