add_visitor.hpp

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#ifndef MLPACK_METHODS_ANN_VISITOR_ADD_VISITOR_HPP
#define MLPACK_METHODS_ANN_VISITOR_ADD_VISITOR_HPP

#include <mlpack/methods/ann/layer/layer_traits.hpp>
#include <mlpack/methods/ann/layer/layer_types.hpp>

#include <boost/variant.hpp>

namespace mlpack {
namespace ann {

template <typename... CustomLayers>
class AddVisitor : public boost::static_visitor<void>
{
 public:
  template<typename T>
  AddVisitor(T newLayer);

  template<typename LayerType>
  void operator()(LayerType* layer) const;

  void operator()(MoreTypes layer) const;

 private:
  LayerTypes<CustomLayers...> newLayer;

  template<typename T>
  typename std::enable_if<
      HasAddCheck<T, void(T::*)(LayerTypes<CustomLayers...>)>::value, void>::type
  LayerAdd(T* layer) const;

  template<typename T>
  typename std::enable_if<
      !HasAddCheck<T, void(T::*)(LayerTypes<CustomLayers...>)>::value, void>::type
  LayerAdd(T* layer) const;
};

} // namespace ann
} // namespace mlpack

// Include implementation.
#include "add_visitor_impl.hpp"

#endif