pan class="special">(</span><span class="identifier">ec</span><span class="special">);</span>
<span class="keyword">return</span> <span class="identifier">s</span><span class="special">;</span>
</pre>
<p>
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <code class="computeroutput"><span class="identifier">a</span><span class="special">.</span><span class="identifier">read_some</span><span class="special">(</span><span class="identifier">mb</span><span class="sp