Question

Having this class :

class Automat
{
private:
    // some members ... 
public:
    Automat();
    ~Automat();
    void addQ(string& newQ) ; 
    void addCharacter(char& newChar)  ;
    void addLamda(Lamda& newLamda) ; 
    void setStartSituation(string& startQ) ; 
    void addAccQ(string& newQ) ;
    bool checkWord(string& wordToCheck) ; 
    friend istream& operator >> (istream &isInput, Automat &newAutomat);
    string& getSituation(string& startSituation) ; 
};

And also class called Menu which has the follow method :

void Menu::handleStringSituations(string &stringOfSituation , Automat* autoToHandle ,void (Automat::*methodToDo) () )
{
    // some code ...
      (*autoToHandle).*methodToDo() ; 
}

The line (*autoToHandle).*methodToDo() ; gives an error .

As you can see I trying to pass any method from Automat class as a parameter to handleStringSituations method with no success.

Answer 1

What you try to do is usually known as closure, a concept strong in functional programming. Rather than reinventing the wheel, I suggest you look into Boost::Phoenix, which provides this in a nice, peer reviewed library.

http://www.boost.org/doc/libs/1_47_0/libs/phoenix/doc/html/index.html

However, since C++ is a statically typed language, you will have to do some marshalling. There is no such thing like a generic function (object) in C++.