an class="special">(</span><span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">exception</span> <span class="special">&amp;</span> <span class="identifier">e</span><span class="special">)</span><span class="special">{</span>
        <span class="comment">// never arrive here</span>
        <span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"error detected:"</span> <span class="special">&lt;