>
<span class="special">{</span>
  <span class="keyword">public</span><span class="special">:</span>
    <span class="keyword">typedef</span> <span class="identifier">UserAllocator</span> <span class="identifier">user_allocator</span><span class="special">;</span>
    <span class="keyword">typedef</span> <span class="identifier">T</span> <span class="identifier">value_type</span><span class="special">;</span>
    <span class="keyword">typedef</span> <span class="identifier">value_type</span> <span class="sp