span>
<span class="keyword">class</span> <a class="link" href="last_value_voi_idp67348144.html" title="Class last_value&lt;void&gt;">last_value</a><span class="special">&lt;</span><span class="keyword">void</span><span class="special">&gt;</span> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
  <span class="comment">// types</span>
  <span class="keyword">typedef</span> <span class="keyword">void</span> <a name="boost.signals2.last_value_voi_idp67348144.resu