literal">n2</code>) operands and
        calculates <code class="literal">n1</code>*<code class="literal">n2</code>. <code class="literal">result</code> is a
        pointer to the variable that should hold the result of the operation.
       </p><p>
        On success, 0 is returned and a negative value if the multiplication
        fails. If overflow or underflow occurred, the function returns
        <code class="literal">ECPG_INFORMIX_NUM_OVERFLOW</code> or
        <code class="literal">ECPG_INFORMIX_NU