WebMar 19, 2015 · because class B member functions fB & fB2 having arguments of type A but compiler has no idea about type info of A so by forward declaration of class A, we can let compiler knows about type info of A. Note: class B definition only dependent on type of A not the members of A so that forward declaration of A resolve step 4. WebFeb 12, 2024 · friend class and functions are allowed to access the private data members of a class. so inside the class which is made as friend to another class,you can access the private member.to access the private members inside the friend class or friend function we have to create object for that class and then only we can access the …
Friendship and inheritance - cplusplus.com
WebNov 23, 2024 · Friend function in c++ provide a degree of freedom in the interface design option. A friend function is used to access all the non-public members of a class. You … WebJun 12, 2024 · It can be declared in any number of classes using the keyword friend. It can be declared only in the private, public, or protected scope of a particular class. This function has access to all private and protected members of classes. This function has access to private and protected members of the same class. One can call the friend … highland shooting range
Declaring a namespace as a friend of a class - Stack Overflow
WebJan 9, 2024 · A friend function is a function that is specified outside a class but has the ability to access the class members’ protected and private data. A friend can be a member’s function, function template, or function, or a class or class template, in which case the entire class and all of its members are friends. WebJun 21, 2024 · The idea of Encapsulation is to bundle data and methods (that work on the data) together and restrict access of private data members outside the class. In C++, a … WebA C++ friend functions are special functions which can access the private members of a class. They are considered to be a loophole in the Object Oriented Programming concepts, but logical use of them can make them useful in certain cases. For instance: when it is not possible to implement some function, without making private members accessible ... highland shooting suspect