class="link" href="typed_keyword.html#idp60319984-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <a class="link" href="named_parameter.html" title="Struct template named_parameter">named_parameter</a><span class="special">&lt;</span> <span class="identi