How to call a private function via friend function?

Question

Hello I am trying to access a private member function is Gtest. The code looks somewhat similar to this. So, how can I access static void Pri_fun?

Answer 1

Since it's a static function, you should access it via the class name:

abc::Pri_fun();

You should make a caller function though, or call it from the friend class' constructor:

class test{
public:
    void foo() 
    {
        abc::Pri_fun();
    }
};

or

class test{
public:
    test() 
    {
        abc::Pri_fun();
    }
};