al *np, int *ip);
</pre><p>
        The function receives a pointer to the decimal value to convert
        (<code class="literal">np</code>) and a pointer to the integer variable that
        should hold the result of the operation (<code class="literal">ip</code>).
       </p><p>
        On success, 0 is returned and a negative value if the conversion
        failed. If an overflow occurred, <code class="literal">ECPG_INFORMIX_NUM_OVERFLOW</code>
        is returned.
       </p><p>
        Note that the E