an class="special">&gt;</span> <span class="special">&gt;</span>
<span class="special">{</span>
   <span class="keyword">int</span> <span class="identifier">int_</span><span class="special">;</span>

   <span class="keyword">public</span><span class="special">:</span>
   <span class="comment">//This is a member hook</span>
   <span class="identifier">avl_set_member_hook</span><span class="special">&lt;&gt;</span> <span class="identifier">member_hook_</span><span class="special">;</span>

   <span class="ide