keyword">typename</span> TagT <span class="special">=</span> <span class="keyword">void</span><span class="special">&gt;</span> 
<span class="keyword">class</span> <a class="link" href="attribute_terminal.html" title="Class template attribute_terminal">attribute_terminal</a> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
  <span class="comment">// <a class="link" href="attribute_terminal.html#boost.log.expressions.attribute_terminalconstruct-copy-destruct">c