Function get_ptr

Source/Utils/json.hpp:19566–19570

        template<typename PointerType, typename std::enable_if<
            std::is_pointer<PointerType>::value, int>::type = 0>
            auto get_ptr() noexcept -> decltype(std::declval<basic_json_t&>().get_impl_ptr(std::declval<PointerType>()))
        {
            // delegate the call to get_impl_ptr<>()
            return get_impl_ptr(static_cast<PointerType>(nullptr));
        }

        /*!
        @brief get a pointer value (implicit)