This is what I did, I didn’t use structs because I wasn’t sure how, but it works.

rnRef=7;
the complier was wrong, that means we can’t change the value of conts reference.

#include<iostream>
#include<string>

int main()
{
    using namespace std;
   cout<<"Enter a number:";
double long x;
cin>> x;

cout<<"Enter one of these: (*, /, +, -)";
char chOperator;
cin>>chOperator;

cout<<"Enter another number:";
double long y;
cin>> y;
if (chOperator== '*' )
        cout<<x*y;
    if(chOperator=='+')
            cout<<x+y;
        if (chOperator=='-')
                cout<<x-y;
            if(chOperator=='/')
                    cout<<x/y;
return 0;

}

#ifndef PERRO_H_
#define PERRO_H_
#include “Mamifero.h”

class Perro : public Mamifero {
public:
Perro():raza(COLLEN){}
~Perro();

RAZA getRaza() const {return raza;};
void setRaza(RAZA _raza) {raza = _raza;};

void moverCola() const {cout<<"Cola meneandola…"<<endl;}
void pedirComida() const {cout<<"Pidiendo Comida…"<<endl;}

protected:
RAZA raza;

};
#endif /* PERRO_H_ */

And the parent class:

#ifndef MAMIFERO_H_
using namespace std;

enum RAZA {COLLEN, CALEN , DANDIE, SERTLAN, DOBERMAN, LAB};

class Mamifero {
public:
Mamifero(): age(2), weight(5) {}
~Mamifero(){};
int getAge() const {return age;}
int getWeight() const {return weight;}
void setWeight(int _weight) {weight = _weight;}
void setAge(int _age) {age = _age;}

void hablar() const {cout<<"Sonido Mamimero"<<endl;};
void dormir() const {cout<<"shhh… esta durmiendo"<<endl;};

protected:
int age;
int weight;
};
#endif /* MAMIFERO_H_ */

and this i what i want to get from the main:

#include
#include “Mamifero.h”
#include “Perro.h”

using namespace std;

int main() {
Perro model;
model.hablar();
model.moverCola();
cout<<"Model tiene "<<model.getAge() <<" anhos de edad"<<endl;

return 0;
}

But i do not know what is happening with the enum data type because i recieve
this logs in the console:

..\src\/Mamifero.h:11:6: error: multiple definition of 'enum RAZA'
..\src\/Mamifero.h:11:6: error: previous definition here
..\src\/Mamifero.h:13:7: error: redefinition of 'class Mamifero'
..\src\/Mamifero.h:13:7: error: previous definition of 'class Mamifero'

I can not get the reason why the enum is duplicated or something similar.

Could you please help with this.
Thanks

which one is faster switch or if else? why?