Keep only base/extractor.[cc|h].

third_party/lzma/v4_65/files/CPP/7zip/Compress/RangeCoder.h

Index: third_party/lzma/v4_65/files/CPP/7zip/Compress/RangeCoder.h
diff --git a/third_party/lzma/v4_65/files/CPP/7zip/Compress/RangeCoder.h b/third_party/lzma/v4_65/files/CPP/7zip/Compress/RangeCoder.h
deleted file mode 100644
index 1e14ac1f825df150ba94f731518ddd2469ea7ace..0000000000000000000000000000000000000000
--- a/third_party/lzma/v4_65/files/CPP/7zip/Compress/RangeCoder.h
+++ /dev/null
@@ -1,204 +0,0 @@
-// Compress/RangeCoder.h
-
-#ifndef __COMPRESS_RANGE_CODER_H
-#define __COMPRESS_RANGE_CODER_H
-
-#include "../Common/InBuffer.h"
-#include "../Common/OutBuffer.h"
-
-namespace NCompress {
-namespace NRangeCoder {
-
-const int kNumTopBits = 24;
-const UInt32 kTopValue = (1 << kNumTopBits);
-
-class CEncoder
-{
-  UInt32 _cacheSize;
-  Byte _cache;
-public:
-  UInt64 Low;
-  UInt32 Range;
-  COutBuffer Stream;
-  bool Create(UInt32 bufferSize) { return Stream.Create(bufferSize); }
-
-  void SetStream(ISequentialOutStream *stream) { Stream.SetStream(stream); }
-  void Init()
-  {
-    Stream.Init();
-    Low = 0;
-    Range = 0xFFFFFFFF;
-    _cacheSize = 1;
-    _cache = 0;
-  }
-
-  void FlushData()
-  {
-    // Low += 1;
-    for(int i = 0; i < 5; i++)
-      ShiftLow();
-  }
-
-  HRESULT FlushStream() { return Stream.Flush();  }
-
-  void ReleaseStream() { Stream.ReleaseStream(); }
-
-  void Encode(UInt32 start, UInt32 size, UInt32 total)
-  {
-    Low += start * (Range /= total);
-    Range *= size;
-    while (Range < kTopValue)
-    {
-      Range <<= 8;
-      ShiftLow();
-    }
-  }
-
-  void ShiftLow()
-  {
-    if ((UInt32)Low < (UInt32)0xFF000000 || (int)(Low >> 32) != 0)
-    {
-      Byte temp = _cache;
-      do
-      {
-        Stream.WriteByte((Byte)(temp + (Byte)(Low >> 32)));
-        temp = 0xFF;
-      }
-      while(--_cacheSize != 0);
-      _cache = (Byte)((UInt32)Low >> 24);
-    }
-    _cacheSize++;
-    Low = (UInt32)Low << 8;
-  }
-  
-  void EncodeDirectBits(UInt32 value, int numBits)
-  {
-    for (numBits--; numBits >= 0; numBits--)
-    {
-      Range >>= 1;
-      Low += Range & (0 - ((value >> numBits) & 1));
-      if (Range < kTopValue)
-      {
-        Range <<= 8;
-        ShiftLow();
-      }
-    }
-  }
-
-  void EncodeBit(UInt32 size0, UInt32 numTotalBits, UInt32 symbol)
-  {
-    UInt32 newBound = (Range >> numTotalBits) * size0;
-    if (symbol == 0)
-      Range = newBound;
-    else
-    {
-      Low += newBound;
-      Range -= newBound;
-    }
-    while (Range < kTopValue)
-    {
-      Range <<= 8;
-      ShiftLow();
-    }
-  }
-
-  UInt64 GetProcessedSize() {  return Stream.GetProcessedSize() + _cacheSize + 4; }
-};
-
-class CDecoder
-{
-public:
-  CInBuffer Stream;
-  UInt32 Range;
-  UInt32 Code;
-  bool Create(UInt32 bufferSize) { return Stream.Create(bufferSize); }
-
-  void Normalize()
-  {
-    while (Range < kTopValue)
-    {
-      Code = (Code << 8) | Stream.ReadByte();
-      Range <<= 8;
-    }
-  }
-  
-  void SetStream(ISequentialInStream *stream) { Stream.SetStream(stream); }
-  void Init()
-  {
-    Stream.Init();
-    Code = 0;
-    Range = 0xFFFFFFFF;
-    for(int i = 0; i < 5; i++)
-      Code = (Code << 8) | Stream.ReadByte();
-  }
-
-  void ReleaseStream() { Stream.ReleaseStream(); }
-
-  UInt32 GetThreshold(UInt32 total)
-  {
-    return (Code) / ( Range /= total);
-  }
-
-  void Decode(UInt32 start, UInt32 size)
-  {
-    Code -= start * Range;
-    Range *= size;
-    Normalize();
-  }
-
-  UInt32 DecodeDirectBits(int numTotalBits)
-  {
-    UInt32 range = Range;
-    UInt32 code = Code;
-    UInt32 result = 0;
-    for (int i = numTotalBits; i != 0; i--)
-    {
-      range >>= 1;
-      /*
-      result <<= 1;
-      if (code >= range)
-      {
-        code -= range;
-        result |= 1;
-      }
-      */
-      UInt32 t = (code - range) >> 31;
-      code -= range & (t - 1);
-      result = (result << 1) | (1 - t);
-
-      if (range < kTopValue)
-      {
-        code = (code << 8) | Stream.ReadByte();
-        range <<= 8;
-      }
-    }
-    Range = range;
-    Code = code;
-    return result;
-  }
-
-  UInt32 DecodeBit(UInt32 size0, UInt32 numTotalBits)
-  {
-    UInt32 newBound = (Range >> numTotalBits) * size0;
-    UInt32 symbol;
-    if (Code < newBound)
-    {
-      symbol = 0;
-      Range = newBound;
-    }
-    else
-    {
-      symbol = 1;
-      Code -= newBound;
-      Range -= newBound;
-    }
-    Normalize();
-    return symbol;
-  }
-
-  UInt64 GetProcessedSize() {return Stream.GetProcessedSize(); }
-};
-
-}}
-
-#endif