/**
Return a new BigInt object containing the result
of a logical AND operation on this BigInt and $bigint.
*/
public function LogicalAND(BigInt $bigint)
{
if ($bigint == null) {
throw new Exception("Argument error :: bigint cannot be null!");
}
$count = $this->width;
if ($count != $bigint->Width()) {
throw new Exception("Format error :: BigInts must be of equal size!");
}
$bigint_arr = $bigint->ToBitArray();
$ret = $this->InitializeArray($count);
for ($i = 0; $i < $count; $i++) {
if ($this->bits[$i] == 1 && $bigint_arr[$i] == 1) {
$ret[$i] = 1;
}
}
return $this->ToBigInt($ret);
}
