exists_tpl.h

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#include <sstream>
// to ease parser in IDEs
#include <agrum/multidim/aggregators/exists.h>

namespace gum {

  namespace aggregator {
    template < typename GUM_SCALAR >
    INLINE Exists< GUM_SCALAR >::Exists(Idx value) :
        MultiDimAggregator< GUM_SCALAR >(), __value(value) {
      GUM_CONSTRUCTOR(Exists);
    }

    template < typename GUM_SCALAR >
    INLINE Exists< GUM_SCALAR >::Exists(const Exists< GUM_SCALAR >& from) :
        MultiDimAggregator< GUM_SCALAR >(from) {
      __value = from.__value;
      GUM_CONS_CPY(Exists);
    }

    template < typename GUM_SCALAR >
    INLINE Exists< GUM_SCALAR >::~Exists() {
      GUM_DESTRUCTOR(Exists);
    }

    template < typename GUM_SCALAR >
    INLINE Idx Exists< GUM_SCALAR >::_neutralElt() const {
      return (Idx)0;
    }

    template < typename GUM_SCALAR >
    INLINE Idx Exists< GUM_SCALAR >::_fold(const DiscreteVariable& v,
                                           Idx                     i1,
                                           Idx                     i2,
                                           bool& stop_iteration) const {
      if (i1 != __value) {
        return (Idx)0;
      } else {
        stop_iteration = true;
        return (Idx)1;
      }
    }

    template < typename GUM_SCALAR >
    INLINE

       std::string
       Exists< GUM_SCALAR >::aggregatorName() const {
      std::stringstream ss;
      ss << "exists[" << __value << "]";
      return ss.str();
    }

    template < typename GUM_SCALAR >
    INLINE MultiDimContainer< GUM_SCALAR >*
           Exists< GUM_SCALAR >::newFactory() const {
      return new Exists< GUM_SCALAR >(__value);
    }

  }   // namespace aggregator
}   // namespace gum