pan class="identifier">T</span><span class="special">,</span> <span class="identifier">D</span> <span class="special">&gt;</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
    <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> D<span class="special">&gt;</span> 
      <span class="keyword">bool</span> <a class="link" href="../boos