asio.reference.ip__basic_resolver_query.h4"></a>
        <span class="phrase"><a name="boost_asio.reference.ip__basic_resolver_query.requirements"></a></span><a class="link" href="ip__basic_resolver_query.html#boost_asio.reference.ip__basic_resolver_query.requirements">Requirements</a>
      </h5>
<p>
        <span class="emphasis"><em>Header: </em></span><code class="literal">boost/asio/ip/basic_resolver_query.hpp</code>
      </p>
<p>
        <span class="emphasis"><em>Convenience header: </em></span><cod