pass data from one class to another

[shadowCODE]

How will i pass a string from one class to another.
Here is a sample code

#nclude "Reveiver"
class Sender
{
public:
    void send(Receiver *rec)
    {
        rec->receive(myString);
    }
    string getString() const
    {
        return myString;
    }
private:
    string myString;
};


/***************************/

class Receiver
{
public:
    void receive(string str)   
    {
        R_string = str;
    }
private:
    string R_string;
};

/*************************/
int main()
{
    //assume these objects
    *ReceiverObj;
    *Senderobj;
    
    SenderObj->send(ReceiverObj);
    cout<<ReceiverObj->getString()<<endl;

}

cout<<ReceiverObj->getString() prints an empty string.
Im suspecting that Sender::myString is not successfully passed through to Receiver::receive(str)

If this is the case, how can i pass the string from one class to a function in another.

[Zhuge]

On the face of it, it seems like it should work (assuming you have getString() defined for Receivers). Could you produce a minimal compilable example with the problem?