/**
* @return BufferInterface
*/
private function serialize()
{
if ($this->math->cmp($this->number, '0') === 0) {
return new Buffer('', 0);
}
// Using array of integers instead of bytes
$result = [];
$negative = $this->math->cmp($this->number, 0) < 0;
$abs = $negative ? $this->math->sub(0, $this->number) : $this->number;
while ($this->math->cmp($abs, 0) > 0) {
//array_unshift($result, (int)$this->math->bitwiseAnd($abs, 0xff));
$result[] = (int) $this->math->bitwiseAnd($abs, 0xff);
$abs = $this->math->rightShift($abs, 8);
}
if ($result[count($result) - 1] & 0x80) {
//array_unshift($result, $negative ? 0x80 : 0);
$result[] = $negative ? 0x80 : 0;
} else {
if ($negative) {
//$result[0] |= 0x80;
$result[count($result) - 1] |= 0x80;
}
}
$s = '';
foreach ($result as $i) {
$s .= chr($i);
}
return new Buffer($s, null, $this->math);
}
/**
* @return Buffer
*/
private function serialize()
{
if ($this->math->cmp($this->number, '0') === 0) {
return new Buffer('', 4);
}
// Using array of integers instead of bytes
$result = [];
$negative = $this->math->cmp($this->number, 0) < 0;
$abs = $negative ? $this->math->sub(0, $this->number) : $this->number;
while ($this->math->cmp($abs, 0) > 0) {
array_unshift($result, (int) $this->math->bitwiseAnd($abs, 0xff));
$abs = $this->math->rightShift($abs, 8);
}
if ($result[0] & 0x80) {
array_unshift($result, $negative ? 0x80 : 0x0);
} else {
if ($negative) {
array_unshift($result, 0x80);
}
}
return new Buffer(array_reduce($result, function ($agg, $current) {
return $agg . chr($current);
}), 4, $this->math);
}
