tifier">flip</span></a><span class="special">(</span><span class="identifier">Type</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <span class="keyword">typename</span> <span class="identifier">Type</span><span class="special">::</span><span class="identifier">element_type</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="special">}</span><span class="special">;</span>

  <span class