C++ protected member function - code with abuzar

 In this tutorial i will tell about the protected member in C++

Protected Member in C++

When preceding the name of a base class , the protected keyword specifies that the public and protected member of the base class are protected members of its derived classes .

Protected member are not as private member member which are accessible to only to member of the class in which they are declared , but they are not as a public member , which are accessible by any function .

Protected member are also declared at static are accessible to any friend or member function of a derived class .

Example 

#include <iostream>

using namespace std;

 

class Box {

   protected:

      double width;

};

 // SmallBox is the derived class.

class SmallBox:Box { 

   public:

  void setSmallWidth( double wid );

  double getSmallWidth( void );

};

 

// Member functions of child class

double SmallBox::getSmallWidth(void)

{

  return width ;

}

 

void SmallBox::setSmallWidth(double wid)

{

   width = wid;

}

 

// Main function for the program

int main() {

   SmallBox box;

 

// set box width using member function

 box.setSmallWidth(5.0);

 cout <<"Width of box :"

<<box.getSmallWidth()<<endl;

 

   return 0;

}

Code is compiled and executed than the result is .

Width of box : 5

Please! Write comment if you find anything incorrect .

This article is contributed by Mohd Abuzar . if  you like code with abuzar and would like to contribute you can also write an article or mail at abuzar.abuzar.mohd325@gmail.com .