Error: pure virtual method called - terminate called without an active exception - Aborted

Question

In my A.h file:

class A{
  private:
    unsigned short PC;
  public:
    A():PC(0){}
    virtual ~A(){}
    virtual void execute(unsigned short PC)=0;
};
         


        

Answer 1

int main(int args, char**argv){
    A *a;
    B b; // wrong
    a = &b; // wrong
    Functions f;
    f.run(a);
    return 1;
}

you can do this :

int main(int args, char**argv){
    A *a = new B;
    //B b;
    //a = &b;
    Functions f;
    f.run(a);
    return 1;
}