C++ Pure virtual method override -

i'm facing little problem , don't know in situation : have first class (object3d) parent class

 object3d{         public:             object3d(){};             virtual ~object3d(){};   ///random methods     virtual void printobj() = 0;     virtual void printobj(double) = 0; //etc..     private: //..     }; 

as can see , have printobj() method overridden. objects take no arguments , in child class

class cube : public object3d {     public:     cube(unsigned char c):object3d(c){};        ~cube(){};     void printobj();     private:      //..      }; 

and other classes require argument call printobj method

class teapot : public object3d     {     public:         teapot(unsigned char c):object3d(c){};         ~teapot(){};         void printobj(double s){//code};     private:     //..     }; 

the problem these 2 classes automatically abstract inherit pure virtual methods parent class.

i've thought redefining printobj(double) in cube class , printobj() class in teapot class , allow user call 'wrong' printobj() method.

edit : explain little bit more mean "calling wrong" printobj();

in main function have declared cube dynamically :

object3d *c = new cube(250); 

and teapot , dynamically :

object3d *t= new teapot(250); 

now if change classes way :

class cube : public object3d {     public:         cube(unsigned char c):object3d(c){};        ~cube(){};         void printobj();     private:         void printobj(double){};// add method here in private }; 

and teapot :

class teapot : public object3d {         public:         teapot(unsigned char c):object3d(c){};         ~teapot(){};         void printobj(double s){};          private:         void printobj(){};//i add method here in private }; 

following these changes , in main function still can these calls :

c->printobj(0);//a cube should called no arguments t->printobj();//a teapot should called arguments 

which want avoid; can access these methods despite them being private because declared object dynamically object3d (i think that's why ?)

the solution quite simple. need made second method private.

class cube : public object3d {     public:     cube(unsigned char c):object3d(c){};        ~cube(){};     void printobj();     private:      void printobj(double d);      }; 

and

class teapot : public object3d     {     public:         teapot(unsigned char c):object3d(c){};         ~teapot(){};         void printobj(double s){//code};     private:         void printobj(){//code};     //..     };