return a Type, or how to preserve a type of an object pointer?

Question

I have a very complicated code structure, but the important bits are:

typical setup: I have a base class and two classes that derive from this base class and each ha

Answer 1

One way to achieve this is to add an interface method into the base class:

class BaseSolver{
virtual void SolverMethodToCallFromMain() = 0;
...
};

class SolverA : BaseSolver{
public:
    std::string a;
    SolverA(TypeA objectA);
    virtual void SolverMethodToCallFromMain() {/*SolverA stuff here*/};
};

class SolverB : BaseSolver{
public:
    int b;
    SolverB(TypeB objectB);
    virtual void SolverMethodToCallFromMain() {/*SolverB stuff here*/};
};

And in main:

int main(){
    IOService ioService;
    BaseSolver* mySolver = ioService.getSolver();
    mySolver->SolverMethodToCallFromMain();
}