CompositeFunction.hpp

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/*
 * ------------------------------------------------------------------------------------------------------------
 * SPDX-License-Identifier: LGPL-2.1-only
 *
 * Copyright (c) 2016-2024 Lawrence Livermore National Security LLC
 * Copyright (c) 2018-2024 Total, S.A
 * Copyright (c) 2018-2024 The Board of Trustees of the Leland Stanford Junior University
 * Copyright (c) 2023-2024 Chevron
 * Copyright (c) 2019-     GEOS/GEOSX Contributors
 * All rights reserved
 *
 * See top level LICENSE, COPYRIGHT, CONTRIBUTORS, NOTICE, and ACKNOWLEDGEMENTS files for details.
 * ------------------------------------------------------------------------------------------------------------
 */
 
#ifndef GEOS_FUNCTIONS_COMPOSITEFUNCTION_HPP_
#define GEOS_FUNCTIONS_COMPOSITEFUNCTION_HPP_
 
#include "FunctionBase.hpp"
 
#include <mathpresso/mathpresso.h>
 
namespace geos
{
 
class CompositeFunction : public FunctionBase
{
public:
  CompositeFunction( const string & name,
                     dataRepository::Group * const parent );
 
  virtual ~CompositeFunction() override;
 
  static string catalogName() { return "CompositeFunction"; }
 
  virtual void initializeFunction() override;
 
  virtual void evaluate( dataRepository::Group const & group,
                         real64 const time,
                         SortedArrayView< localIndex const > const & set,
                         arrayView1d< real64 > const & result ) const override final;
 
  virtual real64 evaluate( real64 const * const input ) const override final;
 
private:
 
  string_array m_functionNames;
  string_array m_variableNames;
  string m_expression;
 
  mathpresso::Context parserContext;
  mathpresso::Expression parserExpression;
 
  localIndex m_numSubFunctions;
  static constexpr localIndex m_maxNumSubFunctions = 10;
  std::vector< FunctionBase * > m_subFunctions;
 
};
 
} /* namespace geos */
 
#endif /* GEOS_FUNCTIONS_COMPOSITEFUNCTION_HPP_ */