count.h

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#ifndef GUM_COUNT_AGGREGATOR_H
#define GUM_COUNT_AGGREGATOR_H

#include <agrum/multidim/aggregators/multiDimAggregator.h>

namespace gum {

  namespace aggregator {
    // =========================================================================
    // ===                     GUM_MAX_AGGREGATOR                            ===
    // =========================================================================

    template < typename GUM_SCALAR >
    class Count : public MultiDimAggregator< GUM_SCALAR > {
      public:
      Count(Idx value);
      Count(const Count< GUM_SCALAR >& from);
      virtual ~Count();

      virtual std::string aggregatorName() const;

      virtual MultiDimContainer< GUM_SCALAR >* newFactory() const;

      protected:
      virtual Idx _neutralElt() const;
      virtual Idx _fold(const DiscreteVariable& v,
                        Idx                     i1,
                        Idx                     i2,
                        bool&                   stop_iteration) const;

      private:
      Idx __value;
    };


#ifndef GUM_NO_EXTERN_TEMPLATE_CLASS
    extern template class Count< double >;
#endif


  }   // namespace aggregator
}   // namespace gum

#include <agrum/multidim/aggregators/count_tpl.h>

#endif   // GUM_COUNT_AGGREGATOR_H