f="Pervasives.html#TYPEin_channel">in_channel</a> -&gt; unit</code></pre><div class="info ">
Close the given channel.  Input functions raise a <code class="code"><span class="constructor">Sys_error</span></code>
  exception when they are applied to a closed input channel,
  except <code class="code">close_in</code>, which does nothing when applied to an already
  closed channel.<br>
</div>

<pre><span id="VALclose_in_noerr"><span class="keyword">val</span> close_in_noerr</span> : <code class="type"><a href=