ParagonIE_Sodium_Core32_Int64::compareInt( int $b = 0 ): int

133    public function compareInt($b = 0)134    {135        $gt = 0;136        $eq = 1;137 138        $i = 4;139        $j = 0;140        while ($i > 0) {141            --$i;142            /** @var int $x1 */143            $x1 = $this->limbs[$i];144            /** @var int $x2 */145            $x2 = ($b >> ($j << 4)) & 0xffff;146            /** int */147            $gt |= (($x2 - $x1) >> 8) & $eq;148            /** int */149            $eq &= (($x2 ^ $x1) - 1) >> 8;150        }151        return ($gt + $gt - $eq) + 1;152    }