/*
This file is part of SECONDO.

Copyright (C) 2011, University in Hagen, Department of Computer Science,
Database Systems for New Applications.

SECONDO 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.

SECONDO 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 SECONDO; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/

#ifndef RASTER2_SBOOL_H_
#define RASTER2_SBOOL_H_

#include "stype.h"
#include "Defines.h"

namespace raster2
{ 
  struct sbool_helper
  {
    typedef stype<char, sbool_helper> implementation_type;
    typedef CcBool wrapper_type;
    typedef temporalalgebra::MBool moving_type;
    typedef temporalalgebra::UBool unit_type;
    static std::string name();
    static bool check(const NList& nl) { return nl.isBool(); }
    static char parse(const NList& nl) { return char(nl.boolval()); }
    static NList print(const char& c)
        { return isUndefined(c)
               ? NList(Symbol::UNDEFINED())
               : NList(bool(c), true); }
    static bool isUndefined(const char& t) { return t == UNDEFINED_BOOL(); }
    static char getUndefined() { return UNDEFINED_BOOL(); }
    static std::string BasicType() { return CcBool::BasicType(); }
    static wrapper_type wrap(const char& t) {
        return CcBool(!isUndefined(t), int(t));
    }
    static char unwrap(const CcBool& i) {
        if (i.IsDefined()) {
          return i.GetValue();
        } else {
          return getUndefined();
        }
    }
  };
  
  typedef stype<char, sbool_helper> sbool;
}

#endif /* SBOOL_H_ */