Empty.h

Go to the documentation of this file.

/* Copyright (C) 2006, Bernd Speiser */

/* This file is part of GeneralQuantities.

GeneralQuantities 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.

GeneralQuantities 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 _Empty_h
#define _Empty_h

#include "Quantity/Variable.h"
#include "Quantity/Constant.h"
#include "Quantity/QuantityCluster.h"

namespace quantity {
  namespace empty {

/* Empty dimension */
typedef BSUtilities::Rational<0> LE;
typedef BSUtilities::Rational<0> M;
typedef BSUtilities::Rational<0> TI;
typedef BSUtilities::Rational<0> E;
typedef BSUtilities::Rational<0> TE;
typedef BSUtilities::Rational<0> A;
typedef BSUtilities::Rational<0> LU;

typedef dimension::Dimension<LE, M, TI, E, TE, A, LU> Dimension;

class Unit;

/* declaration of Empty units */
class EmptyUnit;

/* the empty unity unit */

typedef unit::NonPrefixable<Unit, EmptyUnit> Unity;

typedef LOKI_TYPELIST_1(Unity) Units;

/* Empty quantity */

typedef quantity::Quantity<Dimension, Unit, Units, Unity> Quantity;

}

typedef Variable<empty::Quantity> Empty;

typedef Constant<empty::Quantity> EmptyConstant;

typedef VariableVector<empty::Quantity> EmptyVector;

  }

#endif /* _Empty_h */

---