   <a class="link" href="basic_socket/message_flags.html" title="basic_socket::message_flags"><span class="bold"><strong>message_flags</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Bitmask type for flags that can be passed to send and receive operations.
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="basic_socket/native_handle_type.html" title="basic_socket::native_handle_type"><sp