sum.h

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 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
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#ifndef GUM_SUM_AGGREGATOR_H
#define GUM_SUM_AGGREGATOR_H
 
#include <agrum/base/multidim/aggregators/multiDimAggregator.h>
 
namespace gum {
 
  namespace aggregator {
    // =========================================================================
    // ===                     GUM_SUM_AGGREGATOR                            ===
    // =========================================================================

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

      virtual MultiDimContainer< GUM_SCALAR >* newFactory() const;
 
      virtual std::string aggregatorName() 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 Sum< double >;
#endif
 
 
  }   // namespace aggregator
}   // namespace gum
 
#include <agrum/base/multidim/aggregators/sum_tpl.h>
 
#endif   // GUM_SUM_AGGREGATOR_H