s="special">&amp;</span> other<span class="special">)</span><span class="special">;</span></pre>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term">Effects:</span></p></td>
<td> Copy constructor that copies content of
            <code class="computeroutput">other</code> into new instance, so that any content
            is equivalent in both type and value to the content of
            <code class="computeroutput">other</code>, or empty if <c