minRecorder.h

#ifndef DLR_NUMERIC_MINRECORDER_H
#define DLR_NUMERIC_MINRECORDER_H

#include <limits>

namespace dlr {

  namespace numeric {
    
    template<class Type, class Payload>
    class MinRecorder {
    public:

      MinRecorder() : m_min(), m_payload() {this->reset();}


      MinRecorder(Type const& minValue, Payload const& payload)
        : m_min(minValue), m_payload(payload) {}


      bool
      test(const Type& value, const Payload& payload) {
        if(value < m_min) {
          m_min = value;
          m_payload = payload;
          return true;
        }
        return false;
      }


      const Type&
      getMin() {return m_min;}


      const Payload&
      getPayload() {return m_payload;}


      void
      reset() {
        m_min = std::numeric_limits<Type>::max();
      }

    private:

      Type m_min;
      Payload m_payload;

    };
    
  } // namespace numeric

} // namespace dlr

#endif // #ifdef DLR_NUMERIC_MINRECORDER_H