gPolicy, if <code class="computeroutput"><span class="identifier">BOOST_SPIRIT_DEBUG</span></code> is defined: <code class="computeroutput"><span class="identifier">iterator_policies</span><span class="special">::</span><span class="identifier">buf_id_check</span></code> CheckingPolicy
          </li>
<li class="listitem">
            <code class="computeroutput"><span class="identifier">iterator_policies</span><span class="special">::</span><span class="identifier">buffering_input_iterator</span></code> In