s="code">b</code>.
   Raise <code class="code"><span class="constructor">End_of_file</span></code> if the channel contains fewer than <code class="code">n</code>
   characters. In this case, the characters are still added to
   the buffer, so as to avoid loss of data.</p>
</div>
</div>

<pre><span id="VALoutput_buffer"><span class="keyword">val</span> output_buffer</span> : <code class="type"><a href="Pervasives.html#TYPEout_channel">out_channel</a> -&gt; <a href="Buffer.html#TYPEt">t</a> -&gt; unit</code><