Protected members are a special type of member in C++ that can only be accessed within the same class or its subclasses. This means that protected members cannot be accessed by code outside the class or its subclasses.

However, a common question that arises is whether protected members can be inherited in C++. The answer is yes, protected members can be inherited just like public and private members.

When a class inherits from another class, it gains access to all of the public and protected members of the base class. This means that any protected members in the base class can be accessed by the derived class and any classes that inherit from the derived class.

To access a protected member in a derived class, the member must be accessed using the scope resolution operator (::) together with the name of the base class. For example, if we have a base class called Vehicle with a protected member variable called speed, and a derived class called Car, we can access speed in Car using the following code:

class Vehicle
protected:
 int speed;
;
class Car : public Vehicle {
public:
 void setSpeed(int s)
  speed = s;
 
};

In this example, Car inherits from Vehicle and can access the protected member speed using the scope resolution operator. The setSpeed method in Car sets the value of speed to the passed-in value.

In conclusion, protected members in C++ can be inherited just like public and private members. However, they can only be accessed within the same class or its subclasses. To access a protected member in a derived class, the member must be accessed using the scope resolution operator together with the name of the base class.

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