">default_delete</a> <span class="special">&amp;</span> <a class="link" href="default_delete.html#id-1_3_25_20_8_2_1_1_8-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="default_delete.html" title="Struct template default_delete">default_delete</a><span class="special">&lt;</span> <span class="identifier">U</span> <span class="special">&gt;</span> <span class="special">&amp;</span><span class="sp