default_param.hpp

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#ifndef MLPACK_BINDINGS_R_DEFAULT_PARAM_HPP
#define MLPACK_BINDINGS_R_DEFAULT_PARAM_HPP

#include <mlpack/prereqs.hpp>
#include <mlpack/core/util/param_data.hpp>
#include <mlpack/core/util/is_std_vector.hpp>

namespace mlpack {
namespace bindings {
namespace r {

template<typename T>
std::string DefaultParamImpl(
    util::ParamData& data,
    const typename std::enable_if<!arma::is_arma_type<T>::value>::type* = 0,
    const typename std::enable_if<!util::IsStdVector<T>::value>::type* = 0,
    const typename std::enable_if<!data::HasSerialize<T>::value>::type* = 0,
    const typename std::enable_if<!std::is_same<T,
        std::string>::value>::type* = 0,
    const typename std::enable_if<!std::is_same<T,
        std::tuple<mlpack::data::DatasetInfo, arma::mat>>::value>::type* = 0);

template<typename T>
std::string DefaultParamImpl(
    util::ParamData& data,
    const typename std::enable_if<util::IsStdVector<T>::value>::type* = 0);

template<typename T>
std::string DefaultParamImpl(
    util::ParamData& data,
    const typename std::enable_if<std::is_same<T, std::string>::value>::type* = 0);

template<typename T>
std::string DefaultParamImpl(
    util::ParamData& data,
    const typename std::enable_if<
        arma::is_arma_type<T>::value ||
        std::is_same<T, std::tuple<mlpack::data::DatasetInfo,
                                   arma::mat>>::value>::type* /* junk */ = 0);

template<typename T>
std::string DefaultParamImpl(
    util::ParamData& data,
    const typename std::enable_if<!arma::is_arma_type<T>::value>::type* = 0,
    const typename std::enable_if<data::HasSerialize<T>::value>::type* = 0);

template<typename T>
void DefaultParam(util::ParamData& data,
                  const void* /* input */,
                  void* output)
{
  std::string* outstr = (std::string*) output;
  *outstr = DefaultParamImpl<typename std::remove_pointer<T>::type>(data);
}

} // namespace r
} // namespace bindings
} // namespace mlpack

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

#endif