/** @return Restriction */
function fixRightSide()
{
if ($this->limit->isLowerThan(0)) {
$set = array();
foreach ($this->set as $var => $coeff) {
$set[$var] = $coeff->multiply(-1);
}
$type = $this->type === self::TYPE_EQ ? $this->type : ($this->type === self::TYPE_GOE ? self::TYPE_LOE : self::TYPE_GOE);
$this->limit = $this->limit->multiply(-1);
} else {
$set = $this->set;
$type = $this->type;
}
$this->set = $set;
$this->type = $type;
return $this;
}
