type_helper.hpp

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# /*
#  * Created by YongGyu Lee on 2020/02/23.
#  */
#
# ifndef VCCC_MATH_MATRIX_TYPE_HELPER_HPP
# define VCCC_MATH_MATRIX_TYPE_HELPER_HPP
#
# include <type_traits>
#
# include "vccc/__math/matrix/forward_declare.hpp"
 
namespace vccc {
namespace internal {
namespace math {
 
template<typename T>
struct hold_type_selector {
  using type =
      std::conditional_t<bool(static_cast<int>(traits<T>::option) & static_cast<int>(Flag::kReferenceUnsafe)),
                         const std::remove_reference_t<T>,
                         const T&>;
  using non_const_type =
      std::conditional_t<bool(static_cast<int>(traits<T>::option) & static_cast<int>(Flag::kReferenceUnsafe)),
                         std::remove_reference_t<T>,
                         T&>;
};
 
template<typename T>
using hold_type_selector_t = typename hold_type_selector<T>::type;
 
template<typename T>
struct is_alias_safe : std::integral_constant<bool, !(static_cast<int>(traits<T>::option) & static_cast<int>(Flag::kAliasUnsafe))> {};
 
template<typename T> using is_alias_safe_t = typename is_alias_safe<T>::type;
 
 
template<typename T>
struct is_concrete_matrix : std::false_type {};
 
template<typename T, int m, int n>
struct is_concrete_matrix<Matrix<T, m, n>> : std::true_type {};
 
template<typename T>
using is_concrete_matrix_t = typename is_concrete_matrix<T>::type;
 
template<typename TL, typename TR>
struct is_same_size_impl
    : std::integral_constant<bool, ((static_cast<int>(TL::rows) == static_cast<int>(TR::rows)) && (static_cast<int>(TL::cols) == static_cast<int>(TR::cols)))> {};
 
template<typename A, typename B>
struct is_same_size : is_same_size_impl<traits<A>, traits<B>> {};
 
template<typename TL, typename TR>
struct is_same_type_impl : std::is_same<typename TL::value_type, typename TR::value_type> {};
 
template<typename A, typename B>
struct is_same_type : is_same_type_impl<traits<A>, traits<B>> {};
 
} // namespace math
} // namespace internal
} // namespace vccc
 
 
# endif // VCCC_MATH_MATRIX_TYPE_HELPER_HPP