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<p>open for input </p>

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<h2 class="memtitle"><span class="permalink"><a href="#afc720b7f6f461ec8e9cf5505059e5d7c">&#9670;&nbsp;</a></span>internal</h2>

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          <td class="memname">const <a class="el" href="classios__base.html#ac9a54e