 align="left">Note</th>
</tr>
<tr><td align="left" valign="top"><p>
              <code class="computeroutput"><span class="identifier">qword</span></code> is only available
              on platforms where the preprocessor constant <code class="computeroutput"><span class="identifier">BOOST_HAS_LONG_LONG</span></code>
              is defined (i.e. on platforms having native support for <code class="computeroutput"><span class="keyword">unsigned</span> <span class="keyword">long</span>
              <span 