pan> <span class="identifier">Concept2</span><span class="special">,</span> <span class="identifier">Tag2</span> <span class="special">&gt;</span> <span class="special">&amp;</span> other<span class="special">,</span> <span class="keyword">const</span> <a class="link" href="binding.html" title="Class template binding">binding</a><span class="special">&lt;</span> <span class="identifier">Concept</span> <span class="special">&gt;</span> <span class="special">&amp;</span> binding<span class="special">)</span><