ass="keyword">val</span> pos_out</span> : <code class="type"><a href="Pervasives.html#TYPEout_channel">out_channel</a> -&gt; int</code></pre><div class="info ">
Return the current writing position for the given channel.  Does
    not work on channels opened with the <code class="code"><span class="constructor">Open_append</span></code> flag (returns
    unspecified results).<br>
</div>

<pre><span id="VALout_channel_length"><span class="keyword">val</span> out_channel_length</span> : <code class="type"><a h