/**
* @param VersionInterface $that Version to compare to.
* @return integer|double Negative is this is smaller, positive if that is smaller, or 0 if equals.
*/
public function compare(VersionInterface $that)
{
return $this->version->compare($that->getVersion()) ?: $this->prerelease->compare($that->getPrerelease());
}
public function getNormalizedString()
{
$operator = $this->negate ? self::$inversions[$this->operator] : $this->operator;
return ($operator === self::OPERATOR_EQ ? '' : $operator) . $this->version->getNormalizedString();
}