CommonBits.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2005-2006 Refractions Research Inc.
 *
 * This is free software; you can redistribute and/or modify it under
 * the terms of the GNU Lesser General Public Licence as published
 * by the Free Software Foundation.
 * See the COPYING file for more information.
 *
 **********************************************************************/
 
#pragma once
 
#include <geos/export.h>
#include <cstdint>
 
namespace geos {
namespace precision { // geos.precision
 
class GEOS_DLL CommonBits {
 
private:
 
    bool isFirst;
 
    int commonMantissaBitsCount;
 
    int64_t commonBits;
 
    int64_t commonSignExp;
 
public:
 
    static int64_t signExpBits(int64_t num);
 
    static int numCommonMostSigMantissaBits(int64_t num1, int64_t num2);
 
    static int64_t zeroLowerBits(int64_t bits, int nBits);
 
    static int getBit(int64_t bits, int i);
 
    CommonBits();
 
    void add(double num);
 
    double getCommon();
 
};
 
} // namespace geos.precision
} // namespace geos