output_width_visitor.hpp

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#ifndef MLPACK_METHODS_ANN_VISITOR_OUTPUT_WIDTH_VISITOR_HPP
#define MLPACK_METHODS_ANN_VISITOR_OUTPUT_WIDTH_VISITOR_HPP

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

#include <boost/variant.hpp>

namespace mlpack {
namespace ann {

class OutputWidthVisitor : public boost::static_visitor<size_t>
{
 public:
  template<typename LayerType>
  size_t operator()(LayerType* layer) const;

 private:
  template<typename T>
  typename std::enable_if<
      !HasInputWidth<T, size_t&(T::*)()>::value &&
      !HasModelCheck<T>::value, size_t>::type
  LayerOutputWidth(T* layer) const;

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

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

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

} // namespace ann
} // namespace mlpack

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

#endif