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lkfloat.h

/* liblookdb: lkfloat.h - Float representation
    Copyright (C) 1998-2001 LOOK Systems

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/
#ifndef LIBLOOKDB_LKFLOAT_H
#define LIBLOOKDB_LKFLOAT_H

// $Id: lkfloat.h,v 1.4 2001/07/04 15:53:18 clive Exp $

#include "looktypes.h"
#include "lktypebase.h"

#include "lkstring.h"

namespace look {

// *****************************************************
// LookFloat class
// *****************************************************


class LOOKTYPES_DLL LookFloat : public LookTypeBase
{
public:
// Constructors.
        LookFloat( double theValue = 0.0 );

// Destructor.
        ~LookFloat( void );

// Copy constructor.
        LookFloat( const LookFloat &theOther );

// Assignment operator.
        LookFloat &operator=( const LookFloat &theOther );

// get a copy
        LookTypeBase* GetNewCopy( void ) const;

// get my id
        long GetTypeID( void ) const;

// cast to double
        operator double( void ) const;

// Conversion to and from strings
        bool Set( const LookString& theString );
        LookString GetString( int aPrecision ) const;
        LookString GetStrippedString( int aPrecision ) const;

// other operators
        LookFloat& operator+=( const LookFloat & );
        LookFloat& operator-=( const LookFloat & );

        LookFloat operator+( const LookFloat & ) const;
        LookFloat operator-( const LookFloat & ) const;

// rounds to nearest, not down
        long GetRoundedInteger( void ) const;

        bool LessEqual( const LookFloat& theOtherFloat, int thePrecision ) const;
        bool LessThan( const LookFloat& theOtherFloat, int thePrecision ) const;
        bool IsEqual( const LookFloat& theOtherFloat, int thePrecision ) const;
        bool IsZero( int thePrecision ) const;

protected:
   double itsValue;
};


} // end of "look" namespace
#endif

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