Docsity
Log inSign up
Docsity
Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity

Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan

Guidelines and tips
Guidelines and tips
Sell on Docsity
Sell on Docsity
Log inSign up

Prepare for your exams

Study with the several resources on Docsity

Find documents

Prepare for your exams with the study notes shared by other students like you on Docsity

Search Store documents

The best documents sold by students who completed their studies

Search through all study resources
Docsity AINEW

Summarize your documents, ask them questions, convert them into quizzes and concept maps

Explore questions

Clear up your doubts by reading the answers to questions asked by your fellow students

Earn points to download

Earn points by helping other students or get them with a premium plan

Share documents
download point icon20 Points

For each uploaded document

Answer questions
download point icon5 Points

For each given answer (max 1 per day)

All the ways to get free points
Get points immediately

Choose a premium plan with all the points you need

Study Opportunities

Choose your next study program

Get in touch with the best universities in the world. Search through thousands of universities and official partners

Community

Ask the community

Ask the community for help and clear up your study doubts

University Rankings

Discover the best universities in your country according to Docsity users

Free resources

Our save-the-student-ebooks!

Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors

From our blog

Exams and Study
Go to the blog

C++ Programming: Defining and Modifying Classes with Friend Functions, Assignments of Data Structures and Algorithms

AISECT UniversityData Structures and Algorithms

An example of defining a c++ class named box, setting its width using a setter method, and printing the width using a friend function. The code demonstrates the concept of friend functions in c++ programming, which allows access to private members of a class from outside the class.

What you will learn

  • How does the friend function access the private members of a class in this example?
  • How is a friend function declared in C++?
  • What is a friend function in C++?

Typology: Assignments

2020/2021

Uploaded on 02/13/2021

tau123
tau123 🇮🇳

8 documents

1 / 1

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
#include<iostream>
using namespace std;
class Box{
double width;
public:
friend void printWidth(Box box);
void setWidth(double wid);
};
void Box :: setWidth(double wid){
width = wid;
}
void printWidth(Box box){
box.width = box.width * 2;
cout<<"Width of box :"<<box.width<<endl;
}
int main(){
Box box;
box.setWidth(10.0);
printWidth(box);
return 0;
}

Partial preview of the text

Download C++ Programming: Defining and Modifying Classes with Friend Functions and more Assignments Data Structures and Algorithms in PDF only on Docsity!

#include using namespace std; class Box{ double width; public: friend void printWidth(Box box); void setWidth(double wid); }; void Box :: setWidth(double wid){ width = wid; } void printWidth(Box box){ box.width = box.width * 2; cout<<"Width of box :"<<box.width<<endl; } int main(){ Box box; box.setWidth(10.0); printWidth(box); return 0; }