e="Class template binding">binding</a> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="binding.html" title="Class template binding">binding</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">friend</span> <span class="keyword">bool</span> <a class="link" href="binding.html#id-1_3_41_13_3_1_1_1_3_2-bb"><span class="keyword">operator</span><span class="special">!=</