Pressure.h

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// $Id: Pressure.h,v 1.2 2014/04/02 23:11:12 iws Exp $

#ifndef CARMA_SERVICES_PRESSURE_H
#define CARMA_SERVICES_PRESSURE_H

#include "carma/services/ConformableQuantity.h"
#include "carma/services/Units.h"
#include <string>

namespace carma  {
  namespace services {
      class Pressure : public ConformableQuantity {
        public:

            Pressure(double value, const std::string& units);

            virtual ~Pressure();
            
            double millibar() const;

            double atmosphere() const;

            const Pressure operator+(const Pressure& pressure) const;

            const Pressure operator-(const Pressure& pressure) const;

            bool operator<(const Pressure &pressure) const;

            bool operator>(const Pressure &pressure) const;

            Pressure &operator+=(const Pressure &pressure);

            Pressure &operator-=(const Pressure &pressure);

      };
std::ostream& operator<<(std::ostream& os, 
                         const carma::services::Pressure& pressure);

  }
}

#endif //CARMA_SERVICES_PRESSURE_H