entifier">exchange</span></code>
        used to simplify the implementation of a move constructor.
      </p>
<pre class="programlisting"><span class="identifier">Node</span><span class="special">(</span><span class="identifier">Node</span><span class="special">&amp;&amp;</span> <span class="identifier">other</span><span class="special">)</span>
  <span class="special">:</span> <span class="identifier">head_</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</