/**
* Convert number between formats
*
* @param $number
* @param string $inputFormat
* @param string $outputFormat
* @return string
*/
protected function convert($number, $inputFormat = self::FORMAT_NUMBER, $outputFormat = self::FORMAT_BINARY)
{
if ($inputFormat == $outputFormat) {
return $number;
}
// convert to number
switch ($inputFormat) {
case self::FORMAT_BINARY:
case self::FORMAT_BTWOC:
$number = $this->math->binToInt($number);
break;
case self::FORMAT_NUMBER:
default:
// do nothing
break;
}
// convert to output format
switch ($outputFormat) {
case self::FORMAT_BINARY:
return $this->math->intToBin($number);
break;
case self::FORMAT_BTWOC:
return $this->math->intToBin($number, true);
break;
case self::FORMAT_NUMBER:
default:
return $number;
break;
}
}
/**
* Decode a binary long sequence
*
* @param string $data
* @return int|float|string
*/
protected function decodeBinLong($data)
{
$nbytes = strlen($data);
if ($nbytes == 0) {
return 0;
}
$long = 0;
if ($nbytes > 7) {
if ($this->bigIntegerAdapter === null) {
$this->bigIntegerAdapter = BigInteger\BigInteger::getDefaultAdapter();
}
if (self::$isLittleEndian === true) {
$data = strrev($data);
}
$long = $this->bigIntegerAdapter->binToInt($data, true);
} else {
for ($i = 0; $i < $nbytes; $i++) {
$long += ord($data[$i]) * pow(256, $i);
}
if (0x80 <= ord($data[$nbytes - 1])) {
$long -= pow(2, $nbytes * 8);
// $long-= 1 << ($nbytes * 8);
}
}
return $long;
}
public function testDivisionByZeroRaisesException()
{
$this->setExpectedException('Zend\\Math\\BigInteger\\Exception\\DivisionByZeroException', 'Division by zero');
$this->adapter->div('12345', '0');
}
