C++ list Function return List

Question

I have 2 Classes in ssservice.h:

class ssverbindungsdaten {
public:
    ssverbindungsdaten();
    ~ssverbindungsdaten();

    int id;
    string test;
};

class softswitch {
public:
    softswitch();
    ~softswitch();
    list<ssverbindungsdaten> holeAlleRohdaten();
};

My ssservice.ccp:

list<ssverbindungsdaten> softswitch::holeAlleRohdaten() {
    //ssverbindungsdaten * ssv = new ssverbindungsdaten;
    list<ssverbindungsdaten> *listTmp = new list<ssverbindungsdaten>;
    return *listTmp;
}

And my main.cpp:

int main() {
    std::cout << "Starte ...";

    softswitch *ss = new softswitch;
    list<ssverbindungsdaten> *liSSVVerbinngsdaten = new list<ssverbindungsdaten>();
    liSSVVerbinngsdaten = ss->holeAlleRohdaten();
}

But there is an error in main.cpp:

cannot convert ‘std::__cxx11::list<ssverbindungsdaten>’
  to ‘std::__cxx11::list<ssverbindungsdaten>*’
  in assignment
     liSSVVerbinngsdaten = ss->holeAlleRohdaten();

The list holeAlleRohdaten should be a lsit, containing all Classes ssverbindungsdaten.

That I can later loop trough the liSSVVerbinngsdaten in main.cpp, and get all Classes ssverbindungsdaten with the values (int id, string test).

Why can't I just assing the List liSSVVerbinngsdaten to ss->holeAlleRohdaten?

Answer 1

list<ssverbindungsdaten> *listTmp = new list<ssverbindungsdaten>;

The "new" keyword in c++ actually allocates a new pointer, so you are manually allocating a pointer to a list of ssverbindungsdaten objects. If you want to create a default instance of the class or list just use

list<ssverbindungen> listTmp;

Edit: Also stop coding in german and uppercase your class names