tifier">ptrdiff_t</span> <span class="identifier">difference_type</span><span class="special">;</span>

  <span class="keyword">static</span> <span class="keyword">char</span> <span class="special">*</span> <span class="identifier">malloc</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">size_type</span> <span class="identifier">bytes</span><span class="special">)</span>
  <span class="special">{</span> <span class="keyword">return</span> <span class="keyword">n