;"></span></small><br>

<span style="font-family: Helvetica,Arial,sans-serif;"><small><br>

</small></span><span style="font-family: Helvetica,Arial,sans-serif; font-weight: bold;">Return

values:</span><br>

<small><span style="font-weight: bold; font-family: Helvetica,Arial,sans-serif;"></span></small><span style="font-family: Helvetica,Arial,sans-serif;"><small><br>

</small></span>

<div style="margin-left: 40px;"><span style="font-family: Helvetica,Arial,sans-serif;"><small>On error, returns -1 a