sum_tpl.h

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/****************************************************************************
 *   This file is part of the aGrUM/pyAgrum library.                        *
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 *   Copyright (c) 2005-2026 by                                             *
 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
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 *   SPDX-FileCopyrightText: Copyright 2005-2026                            *
 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
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 *   homepage : http://agrum.gitlab.io                                      *
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#pragma once
 

 
#include <agrum/base/multidim/aggregators/sum.h>
 
namespace gum::aggregator {
  template < GUM_Numeric GUM_SCALAR >
  Sum< GUM_SCALAR >::Sum() : MultiDimAggregator< GUM_SCALAR >() {
    this->decomposable_ = true;
    this->_value_       = this->neutralElt_();
    GUM_CONSTRUCTOR(Sum);
  }
 
  template < GUM_Numeric GUM_SCALAR >
  Sum< GUM_SCALAR >::Sum(const Sum< GUM_SCALAR >& from) : MultiDimAggregator< GUM_SCALAR >(from) {
    GUM_CONS_CPY(Sum);
  }
 
  template < GUM_Numeric GUM_SCALAR >
  Sum< GUM_SCALAR >::~Sum() {
    GUM_DESTRUCTOR(Sum);
  }
 
  template < GUM_Numeric GUM_SCALAR >
  Idx Sum< GUM_SCALAR >::neutralElt_() const {
    return (Idx)0;
  }
 
  template < GUM_Numeric GUM_SCALAR >
  Idx Sum< GUM_SCALAR >::fold_(const DiscreteVariable& v,
                               Idx                     i1,
                               Idx                     i2,
                               bool&                   stop_iteration) const {
    if (auto max_val = this->variable((Idx)0).numerical(this->variable((Idx)0).domainSize() - 1);
        i1 + i2 > max_val) {
      stop_iteration = true;
      return (Idx)max_val;
    }
    return i1 + i2;
  }
 
  template < GUM_Numeric GUM_SCALAR >
  std::string Sum< GUM_SCALAR >::aggregatorName() const {
    return "sum";
  }
 
  template < GUM_Numeric GUM_SCALAR >
  MultiDimContainer< GUM_SCALAR >* Sum< GUM_SCALAR >::newFactory() const {
    return new Sum< GUM_SCALAR >;
  }
 
}   // namespace gum::aggregator