what are friend functions and classes in c++

Friend Functions   A friend function is a non-member function which can access the private and protected members of a class. To declare an external function as a friend of the class, the function prototype preceded with friend keyword should be included in that class. Syntax for creating a friend function is as follows: 1 2 3 4 5 6 class ClassName { ... friend return–type function–name(params–list); ... };   Following are the properties of a friend function: Friend function is a normal external function which is given special access to the private and protected members of a class. Friend

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what are friend functions and classes in c++
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