pan class="special">(</span><span class="identifier">is</span><span class="special">.</span><span class="identifier">rdbuf</span><span class="special">()-&gt;</span><span class="identifier">in_avail</span><span class="special">());</span>
   <span class="keyword">char</span> <span class="identifier">c</span><span class="special">;</span>
   <span class="keyword">while</span><span class="special">(</span><span class="identifier">is</span><span class="special">.</span><span class="identifier">get</span><span 