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

third_party/lzma/v4_65/files/CPP/Common/Buffer.h

-// Common/Buffer.h
-
-#ifndef __COMMON_BUFFER_H
-#define __COMMON_BUFFER_H
-
-#include "Defs.h"
-
-template <class T> class CBuffer
-{
-protected:
-  size_t _capacity;
-  T *_items;
-public:
-  void Free()
-  {
-    delete []_items;
-    _items = 0;
-    _capacity = 0;
-  }
-  CBuffer(): _capacity(0), _items(0) {};
-  CBuffer(const CBuffer &buffer): _capacity(0), _items(0) { *this = buffer; }
-  CBuffer(size_t size): _items(0),  _capacity(0) {  SetCapacity(size); }
-  virtual ~CBuffer() { delete []_items; }
-  operator T *() { return _items; };
-  operator const T *() const { return _items; };
-  size_t GetCapacity() const { return  _capacity; }
-  void SetCapacity(size_t newCapacity)
-  {
-    if (newCapacity == _capacity)
-      return;
-    T *newBuffer;
-    if (newCapacity > 0)
-    {
-      newBuffer = new T[newCapacity];
-      if (_capacity > 0)
-        memmove(newBuffer, _items, MyMin(_capacity, newCapacity) * sizeof(T));
-    }
-    else
-      newBuffer = 0;
-    delete []_items;
-    _items = newBuffer;
-    _capacity = newCapacity;
-  }
-  CBuffer& operator=(const CBuffer &buffer)
-  {
-    Free();
-    if (buffer._capacity > 0)
-    {
-      SetCapacity(buffer._capacity);
-      memmove(_items, buffer._items, buffer._capacity * sizeof(T));
-    }
-    return *this;
-  }
-};
-
-template <class T>
-bool operator==(const CBuffer<T>& b1, const CBuffer<T>& b2)
-{
-  if (b1.GetCapacity() != b2.GetCapacity())
-    return false;
-  for (size_t i = 0; i < b1.GetCapacity(); i++)
-    if (b1[i] != b2[i])
-      return false;
-  return true;
-}
-
-template <class T>
-bool operator!=(const CBuffer<T>& b1, const CBuffer<T>& b2)
-{
-  return !(b1 == b2);
-}
-
-typedef CBuffer<char> CCharBuffer;
-typedef CBuffer<wchar_t> CWCharBuffer;
-typedef CBuffer<unsigned char> CByteBuffer;
-
-#endif