nvironment</a> <span class="special">&amp;&amp;</span><span class="special">)</span><span class="special">;</span></pre>Move constructor. </li>
<li class="listitem">
<pre class="literallayout"><a class="link" href="basic_environment.html" title="Class template basic_environment">basic_environment</a> <span class="special">&amp;</span> <a name="idp51515760-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><span class="keyword">const</span> <a class="link