ss="special">&lt;</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">,</span> <span class="identifier">unique_id</span> <span class="special">&gt;</span> <a name="idp60319984-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&amp;</span> t<span class="special">)</span> <span class="keyword">const</span><span class="spe