bitmap.h

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/*

Copyright (c) 2003, Cornell University
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    - Redistributions of source code must retain the above copyright notice,
        this list of conditions and the following disclaimer.
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        documentation and/or other materials provided with the distribution.
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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*/


/////////////////////////////////////////////////////////////////////
///
/// Bitmap.h
///
/// This bitmap has compressed and uncompressed data.
/// Note: Transaction bitmaps are of this type
///
/////////////////////////////////////////////////////////////////////


#ifndef BITMAP_H
#define BITMAP_H

#include "BaseBitmap.h"

/////////////////////////////////////////////////////////////////////
/// @addtogroup BitmapProcessing
/** @{ */

/////////////////////////////////////////////////////////////////////
///
/// This bitmap has compressed and uncompressed data.
/// Note: Transaction bitmaps are of this type
/////////////////////////////////////////////////////////////////////
class Bitmap : public BaseBitmap {

public:

    friend class Count;
    explicit Bitmap(int numBits);
    explicit Bitmap(Bitmap &);
    ~Bitmap();

    int SmallCount(int &CountCounts);
    void FillCompEmptyPosition(int j);

    void BuildRelComp(Bitmap &source);
    void BuildSource();
    void NotAndCompOnly(const Bitmap &B1, const Bitmap &B2, int &CountSmallAnds);
    void AndCompOnly(const Bitmap &b1, const Bitmap &b2, int &CountAnds);

    int _compSize;   ///< in number of INTs
    int _compUsed;   ///< in number of INTs

    unsigned int* _compMemory; ///< where COMPRESSED data stored
};
/** @} */

#endif