ParagonIE_Sodium_Core32_Int64::subInt( int $int ): ParagonIE_Sodium_Core32_Int64

799    public function subInt($int)800    {801        ParagonIE_Sodium_Core32_Util::declareScalarType($int, 'int', 1);802        $int = (int) $int;803 804        $return = new ParagonIE_Sodium_Core32_Int64();805        $return->unsignedInt = $this->unsignedInt;806 807        /** @var int $carry */808        $carry = 0;809        for ($i = 3; $i >= 0; --$i) {810            /** @var int $tmp */811            $tmp = $this->limbs[$i] - (($int >> 16) & 0xffff) + $carry;812            /** @var int $carry */813            $carry = $tmp >> 16;814            $return->limbs[$i] = (int) ($tmp & 0xffff);815        }816        return $return;817    }