 class="number">16</span><span class="special">,</span> <span class="special">&amp;</span><span class="keyword">this</span><span class="special">-&gt;</span><span class="identifier">pbase0_type</span><span class="special">::</span><span class="identifier">member</span><span class="special">.</span><span class="identifier">y</span> <span class="special">)</span>
  <span class="special">,</span> <span class="identifier">pbase3_type</span><span class="special">(</span> <span class="identifier">x</span><span cl