Friend class c++

Friend function in c++

class className{
  // Other Declarations
  friend returnType functionName(arg list);
};

Source: section.io

Friend class c++

class cl1{
private:
    int x;
    double u;
public:
	cl1();
    meth1();
    
friend class cl2; //to make friend class we are using friend keyword
};

class cl2{
private:
    int x;
    string y;
public:
	cl2();
    meth1();

friend class cl1; 
};

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