Frequency.h

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// $Id: Frequency.h,v 1.8 2014/04/02 23:11:12 iws Exp $

#ifndef CARMA_SERVICES_FREQUENCY_H
#define CARMA_SERVICES_FREQUENCY_H

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

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

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

            virtual ~Frequency();
            
            double hertz() const;

            double gigahertz() const;

            double millihertz() const;

            double megahertz() const;

            double wavelength(const std::string& units) const;

            const Frequency operator+(const Frequency& frequency) const;

            const Frequency operator-(const Frequency& frequency) const;

            bool operator<(const Frequency &frequency) const;

            bool operator>(const Frequency &frequency) const;

            Frequency &operator+=(const Frequency &frequency);

            Frequency &operator-=(const Frequency &frequency);

      };
std::ostream& operator<<(std::ostream& os, 
                         const carma::services::Frequency& frequency);

  }
}


#endif //CARMA_SERVICES_FREQUENCY_H