n class="special">.</span><span class="identifier">io_control</span><span class="special">(</span><span class="identifier">command</span><span class="special">);</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">bytes_readable</span> <span class="special">=</span> <span class="identifier">command</span><span class="special">.</span><span class="identifier">get</span><span class="special">();</span>
</pre>
<h6>
<a name="bo