</code>,
         <code class="literal">+3.44</code>,
         <code class="literal">592.49E07</code> or
         <code class="literal">-32.84e-4</code>.
       </p><p>
        The function returns 0 on success. If overflow or underflow occurred,
        <code class="literal">ECPG_INFORMIX_NUM_OVERFLOW</code> or
        <code class="literal">ECPG_INFORMIX_NUM_UNDERFLOW</code> is returned. If the ASCII
        representation could not be parsed,
        <code class="literal">ECPG_INFORMIX_BAD_NUMERIC</code> 