 <span class="keyword">struct</span> <a class="link" href="../../../boost/pool_allocator_tag.html" title="Struct pool_allocator_tag">pool_allocator_tag</a><span class="special">;</span>

  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> UserAllocator<span class="special">,</span> <span class="keyword">typename</span> Mutex<span class="special">,</span> 
           <span class="ke