cial">{</span>
<span class="keyword">public</span><span class="special">:</span>
  <span class="comment">// types</span>
  <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">intrusive</span><span class="special">::</span><span class="identifier">pointer_traits</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="identifier">SegmentManager</span><span class="special">::</span><span class="iden