 </td>           </tr>                               <tr id="section-7">             <td class="docs">               <div class="pilwrap">                 <a class="pilcrow" href="#section-7">&#182;</a>               </div>               <p><strong>Creating error objects</strong></p>             </td>             <td class="code">               <div class="highlight"><pre><span class="k">class</span> <span class="nc">Rational</span> <span class="p">{</span>
    <span class="cm">/* code for the Rational clas