Fraction.cc

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/* Copyright (C) 2002 - 2005 Bernd Speiser */

/* This file is part of PhysicalQuantities.

PhysicalQuantities 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.

PhysicalQuantities 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.
*/

/* classes for fractional quantity */
/* units for fraction are according to Mills et al., 1993, p. 77 ff. */

#ifndef _Fraction_cc
#define _Fraction_cc

#include "Quantity/Variable.h"

#include "PhysicalQuantities/Fraction.h"

namespace quantity {
  namespace fraction {

/* definition of Fraction units */
/* the unity unit */

template<> const std::string Unity::Namestring  = "unity";
template<> const std::string Unity::Symbolstring = "";
template<> const bool Unity::SI = true;

/* the percent */

template<> const std::string Percent::Namestring  = "percent";
template<> const std::string Percent::Symbolstring = "%";
template<> const bool Percent::SI = true;

/* the parts per millions unit, ppm */

template<> const std::string Ppm::Namestring  = "ppm";
template<> const std::string Ppm::Symbolstring = "ppm";
template<> const bool Ppm::SI = true;

template<> const double Standard<Unity>::ratio = 1.0;
template<> const bool Standard<Unity>::exact = true;

template<> const double Standard<Percent>::ratio = 0.01;
template<> const bool Standard<Percent>::exact = true;

template<> const double Standard<Ppm>::ratio = 1.0e-6;
template<> const bool Standard<Ppm>::exact = true;

  }

template<> const std::string 
                          Name<fraction::Quantity>::String = "fraction";
template<> const std::string Symbol<fraction::Quantity>::String = "";

}

#endif /* _Fraction_cc */

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