set_input_width_visitor.hpp

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#ifndef MLPACK_METHODS_ANN_VISITOR_SET_INPUT_WIDTH_VISITOR_HPP
#define MLPACK_METHODS_ANN_VISITOR_SET_INPUT_WIDTH_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 {

class SetInputWidthVisitor : public boost::static_visitor<bool>
{
 public:
  SetInputWidthVisitor(const size_t inputWidth = 0, const bool reset = false);

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

 private:
  size_t inputWidth;

  bool reset;

  template<typename T>
  typename std::enable_if<
      !HasInputWidth<T, size_t&(T::*)()>::value &&
      !HasModelCheck<T, std::vector<LayerTypes>&(T::*)()>::value, bool>::type
  LayerInputWidth(T* layer) const;

  template<typename T>
  typename std::enable_if<
      HasInputWidth<T, size_t&(T::*)()>::value &&
      !HasModelCheck<T, std::vector<LayerTypes>&(T::*)()>::value, bool>::type
  LayerInputWidth(T* layer) const;

  template<typename T>
  typename std::enable_if<
      !HasInputWidth<T, size_t&(T::*)()>::value &&
      HasModelCheck<T, std::vector<LayerTypes>&(T::*)()>::value, bool>::type
  LayerInputWidth(T* layer) const;

  template<typename T>
  typename std::enable_if<
      HasInputWidth<T, size_t&(T::*)()>::value &&
      HasModelCheck<T, std::vector<LayerTypes>&(T::*)()>::value, bool>::type
  LayerInputWidth(T* layer) const;
};

} // namespace ann
} // namespace mlpack

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

#endif