on.<br>
</div>

<pre><span id="VALflush"><span class="keyword">val</span> flush</span> : <code class="type"><a href="Pervasives.html#TYPEout_channel">out_channel</a> -&gt; unit</code></pre><div class="info ">
Flush the buffer associated with the given output channel,
   performing all pending writes on that channel.
   Interactive programs must be careful about flushing standard
   output and standard error at the right time.<br>
</div>

<pre><span id="VALflush_all"><span class="keyword">val</span> flush_al