sourcemeta::core::json_auto_tuple_poly Concept Reference

Concept definition

template<typename T>
concept json_auto_tuple_poly =
    requires { typename std::tuple_size<std::remove_cvref_t<T>>::type; } &&
    (std::tuple_size_v<std::remove_cvref_t<T>> >= 2) &&
    (!std::is_base_of_v<
        std::pair<std::tuple_element_t<0, std::remove_cvref_t<T>>,
                  std::tuple_element_t<1, std::remove_cvref_t<T>>>,
        std::remove_cvref_t<T>>)