---

real.hh

/*
*  Name:      real.hh
*  Author:    Rafael Jesus Alcantara Perez
*  Summary:   UESQLC base SQL type real
*  Date:      $Date: 2003/10/06 13:21:35 $
*  Revision:  $Revision: 1.1 $
*
*  Copyright (C) 2002  Rafael Jesus Alcantara Perez <rafa@dedalo-ing.com>
*
*  This program is free software; you can redistribute it and/or modify
*  it under the terms of the GNU General Public License as published by
*  the Free Software Foundation; either version 2 of the License, or
*  (at your option) any later version.
*
*  This program 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 General Public License for more details.
*
*  You should have received a copy of the GNU General Public License
*  along with this program; if not, write to the Free Software
*  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
*  MA 02111-1307, USA.
*/

#ifndef _UESQL_REAL__
#define _UESQL_REAL__

#include "type.hh"


namespace uesqlc
{

  class TReal : public IType
  {

    private:

      double   dValue;


    public:

      //
      //  C O N S T R U C T O R S
      //

      TReal (void) :
        IType  ()  ,
        dValue (0) {}

      TReal (const TReal& rktREAL) :
        IType  ()                  ,
        dValue (rktREAL.dValue)
      {
        setNull (rktREAL.isNull());
      }

      TReal (const double kdVALUE) :
        IType  ()                  ,
        dValue (kdVALUE)
      {
        setNull (false);
      }

      explicit TReal (const char* pkcREAL) :
        IType  ()                          ,
        dValue (0)
      {
        set (pkcREAL);
      }

      explicit TReal (const std::string& rkyREAL) :
        IType  ()                                 ,
        dValue (0)
      {
        set (rkyREAL);
      }

      void set (const char* pkcVALUE)
      {
        setNull ( !pkcVALUE || !*pkcVALUE );
        if ( !isNull() )
        {
          dValue = std::atof (pkcVALUE);
        }
      }
      
      void set (const std::string& rkyVALUE)
      {
        set (rkyVALUE.c_str());
      }


    public:

      //
      //  S E L E C T O R S
      //

      mpcl::text::TString get (void) const
      {
        mpcl::text::TString   yResult;

        if ( isNull() )
        {
          yResult = "null";
        }
        else
        {
          yResult = mpcl::text::Format ("%f", dValue);
        }
        return yResult;
      }

      mpcl::text::TString get (const char* pkcFORMAT) const
      {
        mpcl::text::TString   yResult;

        if ( isNull() )
        {
          yResult = "null";
        }
        else
        {
          yResult = mpcl::text::Format (pkcFORMAT, dValue);
        }
        return yResult;
      }

      operator long double (void) const
      {
        return dValue;
      }

  };  // class TReal

}  // namespace uesqlc


#endif  // not _UESQL_REAL__

---