ment">// <a class="link" href="reference_wrapper.html#idm45666332859872-bb">public member functions</a></span>
  <a class="link" href="reference_wrapper.html#idm45666332859312-bb"><span class="keyword">operator</span> <span class="identifier">T</span> <span class="special">&amp;</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">T</span> <span class="special">&amp;</span> <a class="link" href="ref