Witryna30 lip 2014 · Friend functions are advantageous in cases where you would want to call a 3rd party library function which needs access to members of your class, consider for example: class A { private: int x,y; double result; public: friend void *power (void *x); } Witryna16 mar 2024 · Points to Remember About Functions in C++ 1. Most C++ program has a function called main () that is called by the operating system when a user runs the program. 2. Every function has a return type. If a function doesn’t return any value, then void is used as a return type.

Lloyd Lewins on LinkedIn: Why does C++ have friend classes and ...

WitrynaAnswer (1 of 8): Private members of a class cannot be accessed outside the class. But there might be some situations where we require the access of private members to … Witryna6 wrz 2024 · Advantages of functions in C/C++. Some important benefits or advantages of using functions are as follows: Easier to Code. A lengthy program can be divided into small functions. It is easier to write small functions instead of writing a long program. A function is written for a specific task. A programmer can focus the … novablast 3 platinum review

C++ Friend Function - W3schools

WitrynaFriend Class and Function in C++ - GeeksforGeeks. 4 days ago The friend function provides us with a way to access private data but it also has its demerits. Following is the list of advantages and disadvantages of friend functions i…Advantages of Friend FunctionsA friend function is able to access members without the need of in… See … WitrynaConsidering all the above-discussed features and the examples of friend function in C++, one must also be careful while using a friend’s functions with numerous … WitrynaSyntax for the declaration of a friend function. class class_name. {. friend data_type function_name (argument/s); // syntax of friend function. }; In the above declaration, … how to sleep well for teenagers