LinearCombination.h

// Copyright 2024, UChicago Argonne, LLC
// All Rights Reserved
// Software Name: NEML2 -- the New Engineering material Model Library, version 2
// By: Argonne National Laboratory
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#pragma once
 
#include "neml2/models/Model.h"
 
namespace neml2
{
template <typename T>
class LinearCombination : public Model
{
public:
  static OptionSet expected_options();
 
  LinearCombination(const OptionSet & options);
 
protected:
  void set_value(bool out, bool dout_din, bool d2out_din2) override;
 
  Variable<T> & _to;
 
  std::vector<const Variable<T> *> _from;
 
  const bool _coef_as_param;
 
  const Tensor & _coef;
 
private:
  Tensor make_coef(const OptionSet & options) const;
};
 
typedef LinearCombination<Scalar> ScalarLinearCombination;
typedef LinearCombination<Vec> VecLinearCombination;
typedef LinearCombination<SR2> SR2LinearCombination;
} // namespace neml2