parameters_visitor_impl.hpp

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#ifndef MLPACK_METHODS_ANN_VISITOR_PARAMETERS_VISITOR_IMPL_HPP
#define MLPACK_METHODS_ANN_VISITOR_PARAMETERS_VISITOR_IMPL_HPP

// In case it hasn't been included yet.
#include "parameters_visitor.hpp"

namespace mlpack {
namespace ann {

inline ParametersVisitor::ParametersVisitor(arma::mat& parameters) :
    parameters(parameters)
{
  /* Nothing to do here. */
}

template<typename LayerType>
inline void ParametersVisitor::operator()(LayerType *layer) const
{
  LayerParameters(layer, layer->OutputParameter());
}

inline void ParametersVisitor::operator()(MoreTypes layer) const
{
  layer.apply_visitor(*this);
}

template<typename T, typename P>
inline typename std::enable_if<
    !HasParametersCheck<T, P&(T::*)()>::value, void>::type
ParametersVisitor::LayerParameters(T* /* layer */, P& /* output */) const
{
  /* Nothing to do here. */
}

template<typename T, typename P>
inline typename std::enable_if<
    HasParametersCheck<T, P&(T::*)()>::value, void>::type
ParametersVisitor::LayerParameters(T* layer, P& /* output */) const
{
  parameters = layer->Parameters();
}

} // namespace ann
} // namespace mlpack

#endif