put"><span class="identifier">exception_list</span></code>
          of our own:
        </p>
<p>
</p>
<pre class="programlisting"><span class="keyword">class</span> <span class="identifier">exception_list</span> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">runtime_error</span> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
    <span class="identi