Friend Function:-Friend Function is Friendly to all the classes which can be declared as a friend of that class. "Friendship is given not taken" this statement means to say the friend is always ...

A friend function is defined ... signature of an identifier, function, class, variable, etc. prior to its usage. // Forward Declaration void sum(int, int); // Usage of the sum void sum(int a, int b) { ...

Abstract: Previous research has highlighted the extensive use of the C++ friend construct in ... indicate that up to 66% of friend class relationships in systems are redundant. Elsewhere, friend ...

Here is a Friend function of cpp. Friend Function-If a function is defined as a friend function in C++, then the protected and private data of a class can be accessed using the function.