count_tpl.h

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 *   Copyright (c) 2005-2025 by                                             *
 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
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 *   SPDX-FileCopyrightText: Copyright 2005-2025                            *
 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
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#pragma once
 

 
#include <sstream>
 
#include <agrum/base/multidim/aggregators/count.h>
 
namespace gum {
 
  namespace aggregator {
    template < typename GUM_SCALAR >
    INLINE Count< GUM_SCALAR >::Count(Idx value) :
        MultiDimAggregator< GUM_SCALAR >(), _value_(value) {
      GUM_CONSTRUCTOR(Count);
    }
 
    template < typename GUM_SCALAR >
    INLINE Count< GUM_SCALAR >::Count(const Count< GUM_SCALAR >& from) :
        MultiDimAggregator< GUM_SCALAR >(from) {
      _value_ = from._value_;
      GUM_CONS_CPY(Count);
    }
 
    template < typename GUM_SCALAR >
    INLINE Count< GUM_SCALAR >::~Count() {
      GUM_DESTRUCTOR(Count);
    }
 
    template < typename GUM_SCALAR >
    INLINE Idx Count< GUM_SCALAR >::neutralElt_() const {
      return (Idx)0;
    }
 
    template < typename GUM_SCALAR >
    INLINE Idx Count< GUM_SCALAR >::fold_(const DiscreteVariable& v,
                                          Idx                     i1,
                                          Idx                     i2,
                                          bool&                   stop_iteration) const {
      return (i1 == _value_) ? 1 + i2 : i2;
    }
 
    template < typename GUM_SCALAR >
    INLINE std::string Count< GUM_SCALAR >::aggregatorName() const {
      std::stringstream ss;
      ss << "count[" << _value_ << "]";
      return ss.str();
    }
 
    template < typename GUM_SCALAR >
    INLINE MultiDimContainer< GUM_SCALAR >* Count< GUM_SCALAR >::newFactory() const {
      return new Count< GUM_SCALAR >(_value_);
    }
 
  }   // namespace aggregator
}   // namespace gum