Explain public derivation, C/C++ Programming

Assignment Help:

Public derivation

Public derivations are much more common than private derivations. In this situation:

  • The private members inherited from the base class are inaccessible to new members' functions in the derived class.
  • The public members inherited from the base class might be accessed by new members functions in the derived class and by instances of the derived class.

 e.g.

                class base

                 {

                  private :

                                                int number;

                 };

                class derived : public base

                 {

                  public :

                                                void f()

                                                 {

++number;     // Private base member not

                 accessible

                                                 }

                 };

The compiller error message is ' base :: number ' is not accessible in the function derived::f();

Here, only if the number is public then you can access it.

 

 


Related Discussions:- Explain public derivation

Operator overloading, write aprogram in c++ to overload +,-,=,++ operator ...

write aprogram in c++ to overload +,-,=,++ operator using unary and friend function in a single program

I need torrent seeding software throughout multiple proxies, Project Descri...

Project Description: I'm seeking someone who could write me a torrent seeding client which supports multiple proxies. The goal of the project is to make torrents popular by seed

Wap to swap the three digit number, WAP TO SWAP THE THREE DIGIT NUMBER ...

WAP TO SWAP THE THREE DIGIT NUMBER void main () { int b,r,n,r1,r2; clrscr (); printf ("Enter the Value: "); scanf ("%d",&n); r=n%10; n=n/10; r1=n%10;

Algorithms flow charts and psuedocode, How to write C program (interest cal...

How to write C program (interest calculator) the simple interest on a loan is calculated by the formula interest=principal*rate*days/365; ?

Function, #q•Design and code a new function that accepts as parameters the ...

#q•Design and code a new function that accepts as parameters the gross pay by value and the federal tax, state tax, local tax, SS tax, and net Pay by reference. Calculate the taxes

Program, program to check whether a given point lies inside a rectangle or ...

program to check whether a given point lies inside a rectangle or not

#Program, Write a program that accepts two real numbers from a user and a s...

Write a program that accepts two real numbers from a user and a select code. If the entered select code is 1, have the program add the two previously entered numbers and display t

What is inheritance, What is inheritance? Class, the vehicle, which is ...

What is inheritance? Class, the vehicle, which is used to execute object-oriented concepts in C++, has given a new dimension to this idea of reusability. Many vendors now offer

Derivatives and symbolic math, #Hi, I''m planning to derive the escape velo...

#Hi, I''m planning to derive the escape velocity through C++. I would just like to know if it''s possible to differentiate symbolic functions? Do I need to download libraries,etc?

Decode the Code, Smugglers are becoming very smart day by day. Now they hav...

Smugglers are becoming very smart day by day. Now they have developed a new technique of sending their messages from one smuggler to another. In their new technology, they are send

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd