span> <span class="identifier">allocate</span><span class="special">(</span><span class="identifier">size_type</span> <span class="identifier">n</span><span class="special">,</span> <span class="identifier">pointer</span><span class="special">);</span>
    <span class="keyword">static</span> <span class="keyword">void</span> <span class="identifier">deallocate</span><span class="special">(</span><span class="identifier">pointer</span> <span class="identifier">ptr</span><span class="special">,</span> <span c