iv class="info-desc">
<p><code class="code">add_buffer&nbsp;b1&nbsp;b2</code> appends the current contents of buffer <code class="code">b2</code>
   at the end of buffer <code class="code">b1</code>.  <code class="code">b2</code> is not modified.</p>
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<pre><span id="VALadd_channel"><span class="keyword">val</span> add_channel</span> : <code class="type"><a href="Buffer.html#TYPEt">t</a> -&gt; <a href="Pervasives.html#TYPEin_channel">in_channel</a> -&gt; int -&gt; unit</code></pre><div class="i