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        <p>Library Version 18.1.40</p>
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          <th colspan="3" align="center">Comparison Function Signature Change</th>
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            <h2 class="title" style="clear: both"><a id="compare_func"></a>Comparison Function Signature Change</h2>
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      <p> 
            A new parameter has been added to the comparison
            callback set by the following methods:
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            <a href="../api_reference/C/dbset_bt_compare.html" class="olink">DB-&gt;set_bt_compare()</a>
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            <a href="../api_reference/C/dbset_dup_compare.html" class="olink">DB-&gt;set_dup_compare()</a>
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            The new parameter is the
            <code class="literal">locp</code> parameter, and it is the last
            parameter required in the callback's signature. It is
            intended for internal use only. In customer code, the
            parameter must be set to <code class="literal">NULL</code>.
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