cial">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"Calc(int):   "</span> <span class="special">(</span><span class="identifier">cl</span><span class="special">-&gt;*</span><span class="identifier">calc</span><span class="special">)(</span><span 