n>
  <a class="link" href="signal.html#id-1_3_37_6_9_3_1_2_22-bb"><span class="identifier">signal</span></a><span class="special">(</span><span class="identifier">signal</span> <span class="special">&amp;&amp;</span><span class="special">)</span><span class="special">;</span>
  signal&amp; <a class="link" href="signal.html#id-1_3_37_6_9_3_1_2_23-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><span class="identifier">signal</span> <span class="special