Friend Function Program in C++ // C++ program to demonstrate example of// friend function with class#include <iostream>usingnamespacestd;classNumber{private:inta;public:voidgetNum(intx);//declaration of friend functionfriendvoidprintNum(Number NUM); };//class member function defi...
In this tutorial, we will learn how todemonstrate the concept of Friend Function, in the C++ programming language. To understand the concept ofFriend Functionand various other types ofClass Member functionsin CPP, we will recommend you to visit here:C++ Types of Member Function, where we have ...
class className { friend returnType functionName(arguments); } C++ CopyThe keyword “friend” is placed only in the function declaration of the friend function and not in the function definition. When the friend function is called neither the name of the object nor the dot operator is used. ...
1. Global function as Friend function in Class A In the following program, we define a class:A, in which a functiondisplay()is declared as a friend function. So, nowdisplay()function can access the private and protected members of classAtype objects, in this case its the variablex. C++...
Here is the following code for Function Friend in C++:Open Compiler #include <iostream> using namespace std; class Box { double width; public: friend void printWidth( Box box ); void setWidth( double wid ); }; // Member function definition void Box::setWidth( double wid ) { width =...
In the main function, an object is created, s1, and showData(s1) is used to print the private data. Example 2: Add Members of Two Different Classes The friend function is used to access and manipulate the data from multiple classes. Cpp 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ...
two.cc: In member function âvoid TWO::print(ONE&)â: two.cc:4: error: invalid use of incomplete type âstruct ONEâ two.h:4: error: forward declaration of âstruct ONEâ two.cc:5: error: invalid use of incomplete type âstruct ONEâ ...
friendvoiddisplay(demo};//Friend function declaration }; voiddisplay(demo dd1) { cout<
friend someType FriendFunction( SomeArguments); ... }; In the above code snippet, you use “friend” modifier to inform your compiler that you will trust FriendFunction. In this case, you should inform your compiler about the function name, return data type, and arguments you are using. ...
4) What is a friend function? What is the difference between a friend function and a regular member function of a class? Object-oriented programming: Object-oriented programming is the most dramatic innovation in software development based on the conce...