symengine_types.h

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// ---------------------------------------------------------------------
//
// Copyright (C) 2019 - 2021 by the deal.II authors
//
// This file is part of the deal.II library.
//
// The deal.II library is free software; you can use it, redistribute
// it, and/or modify it under the terms of the GNU Lesser General
// Public License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// The full text of the license can be found in the file LICENSE at
// the top level of the deal.II distribution.
//
// ---------------------------------------------------------------------
 
#ifndef dealii_differentiation_sd_symengine_types_h
#define dealii_differentiation_sd_symengine_types_h
 
#include <deal.II/base/config.h>
 
#ifdef DEAL_II_WITH_SYMENGINE
 
#  include <boost/serialization/map.hpp>
 
#  include <map>
#  include <vector>
 
DEAL_II_NAMESPACE_OPEN
 
namespace Differentiation
{
  namespace SD
  {
    // Forward declarations
    class Expression;
 
 
    namespace types
    {
      namespace internal
      {
        struct ExpressionKeyLess
        {
          bool
          operator()(const SD::Expression &lhs,
                     const SD::Expression &rhs) const;
        };
      } // namespace internal
 
      using substitution_map =
        std::map<SD::Expression, SD::Expression, internal::ExpressionKeyLess>;
 
      using symbol_vector = std::vector<SD::Expression>;
 
    } // namespace types
 
  } // namespace SD
} // namespace Differentiation
 
 
DEAL_II_NAMESPACE_CLOSE
 
 
#  ifndef DOXYGEN
 
// Add serialization capability for SD::types::internal::ExpressionKeyLess
// We need to define this so that we can use this comparator in maps that
// are to be serialized.
namespace boost
{
  namespace serialization
  {
    namespace SD = ::Differentiation::SD;
 
    template <typename Archive>
    void
    serialize(Archive & /*ar*/,
              SD::types::internal::ExpressionKeyLess & /*cmp*/,
              unsigned int /*version*/)
    {
      // Nothing to do.
    }
  } // namespace serialization
} // namespace boost
 
#  endif // DOXYGEN
 
#endif // DEAL_II_WITH_SYMENGINE
 
#endif // dealii_differentiation_sd_symengine_types_h