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lkinteger.h

/* liblookdb: lkinteger.h - Integer 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_LKINTEGER_H
#define LIBLOOKDB_LKINTEGER_H

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

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

#include "lkstring.h"

namespace look {

// *****************************************************
// LookInteger class
// *****************************************************


class LOOKTYPES_DLL LookInteger : public LookTypeBase
{
public:
// Constructors.
        LookInteger( long theValue = 0 );

// Destructor.
        ~LookInteger( void );

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

// Assignment operators
        LookInteger &operator=( const LookInteger &theOther );
        LookInteger &operator=( long theValue );

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

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

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

// Conversion to and from strings
        bool Set( const LookString& theString );
        LookString GetString( void ) const;               // "1",
        LookString GetString( int theWidth ) const;       // width 0, 1 ->"1",
                                                              // width 2, ->"01",

        // not implemented (anyone want to?)
        // IBM have rather a nice solution in their internationalisation classes
        //LookString GetSpelledString( void ) const;           // "One"

        // only implemented for numbers < 100 (ie days)
        LookString GetOrdinalString( void ) const;           // "1st"
        LookString GetSpelledOrdinalString( void ) const;    // "First"

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

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

protected:
        long itsValue;
};


} // end of "look" namespace
#endif

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