n class="special">&lt;</span><span class="identifier">UserAllocator</span><span class="special">&gt;::</span><span class="identifier">difference_type</span> <span class="identifier">difference_type</span><span class="special">;</span>

    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">U</span><span class="special">&gt;</span>
    <span class="keyword">struct</span> <span class="identifier">rebind</span>
    <span class="