ParagonIE_Sodium_Core_Util::abs( int $integer, int $size = 0 ): int

19    public static function abs($integer, $size = 0)20    {21        /** @var int $realSize */22        $realSize = (PHP_INT_SIZE << 3) - 1;23        if ($size) {24            --$size;25        } else {26            /** @var int $size */27            $size = $realSize;28        }29 30        $negative = -(($integer >> $size) & 1);31        return (int) (32            ($integer ^ $negative)33                +34            (($negative >> $realSize) & 1)35        );36    }