ExogenousConversionHelpers.tpp

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/*
 * Copyright (C) 2022 Fondazione Istituto Italiano di Tecnologia
 *
 * This software may be modified and distributed under the terms of the
 * BSD-2-Clause license (https://opensource.org/licenses/BSD-2-Clause).
 */
#ifndef MATIOCPP_EXOGENOUSCONVERSIONHELPERS_TPP
#define MATIOCPP_EXOGENOUSCONVERSIONHELPERS_TPP
 
namespace matioCpp
{
template <typename T, typename = void, typename = void>
struct is_eigen_matrix : std::false_type
{
};
 
#ifdef MATIOCPP_HAS_EIGEN
 
template <typename Derived>
struct is_eigen_matrix<Derived,
                       typename std::enable_if_t<std::is_base_of<Eigen::MatrixBase<Derived>, Derived>::value>,
                       typename std::enable_if_t<Eigen::MatrixBase<Derived>::RowsAtCompileTime != 1 &&
                                                 Eigen::MatrixBase<Derived>::ColsAtCompileTime != 1>>: std::true_type
{
};
 
#endif
 
template <typename T, typename = void, typename = void>
struct is_vector_compatible : std::false_type
{
};
 
template <typename T>
    struct is_vector_compatible<T,
                               typename std::enable_if<(std::is_array<T>::value || matioCpp::SpanUtils::has_type_member<T>::value || matioCpp::SpanUtils::has_data_method<T>::value) && !is_eigen_matrix<T>::value>::type,
    typename std::enable_if<matioCpp::SpanUtils::is_make_span_callable<T>::value &&
                            !std::is_same<typename matioCpp::SpanUtils::container_data<T>::type, bool>::value>::type> : std::true_type
{
};
 
template <typename, typename = void, typename = void>
struct is_pair : std::false_type
{ };
 
template <typename T>
struct is_pair<T, matioCpp::SpanUtils::void_t<decltype(std::declval<T>().first)>, matioCpp::SpanUtils::void_t<decltype(std::declval<T>().second)>> : std::true_type
{ };
 
template <typename, typename = void, typename = void>
struct is_pair_iterator_string : std::false_type
{ };
 
template <typename T>
struct is_pair_iterator_string<T,
                               typename std::enable_if_t<is_pair<decltype(*std::declval<T>())>::value>,
                               typename std::enable_if_t<std::is_convertible<decltype(std::declval<T>()->first), std::string>::value>> : std::true_type
{ };
 
}
 
#endif // MATIOCPP_EXOGENOUSCONVERSIONHELPERS_TPP