exists_tpl.h

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 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
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 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
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#pragma once
 

 
// to ease parser in IDEs
#include <agrum/base/multidim/aggregators/exists.h>
 
namespace gum {
 
  namespace aggregator {
    template < GUM_Numeric GUM_SCALAR >
    Exists< GUM_SCALAR >::Exists(Idx value) : MultiDimAggregator< GUM_SCALAR >(), _value_(value) {
      GUM_CONSTRUCTOR(Exists);
    }
 
    template < GUM_Numeric GUM_SCALAR >
    Exists< GUM_SCALAR >::Exists(const Exists< GUM_SCALAR >& from) :
        MultiDimAggregator< GUM_SCALAR >(from) {
      _value_ = from._value_;
      GUM_CONS_CPY(Exists);
    }
 
    template < GUM_Numeric GUM_SCALAR >
    Exists< GUM_SCALAR >::~Exists() {
      GUM_DESTRUCTOR(Exists);
    }
 
    template < GUM_Numeric GUM_SCALAR >
    Idx Exists< GUM_SCALAR >::neutralElt_() const {
      return (Idx)0;
    }
 
    template < GUM_Numeric GUM_SCALAR >
    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 < GUM_Numeric GUM_SCALAR >
    std::string Exists< GUM_SCALAR >::aggregatorName() const {
      return std::format("exists[{}]", _value_);
    }
 
    template < GUM_Numeric GUM_SCALAR >
    std::optional< Idx > Exists< GUM_SCALAR >::value() const {
      return _value_;
    }
 
    template < GUM_Numeric GUM_SCALAR >
    MultiDimContainer< GUM_SCALAR >* Exists< GUM_SCALAR >::newFactory() const {
      return new Exists< GUM_SCALAR >(_value_);
    }
 
  }   // namespace aggregator
}   // namespace gum