inheritance shared attribute

[Damian666]

Hi boys.

I have base class A and i need inherit from class A to class B1 and class B2.
class A may have shared attributes for B1 B2?
I do not want a static attributes.
THX

Very sorry for my english

[Volatile Pulse]

You aren't leaving us much to go on, but inheritance in C++ is simple:

#include <iostream>

class A {
   public:
      int getNumber();
      int myNumber;
};

class B1 : public A {
   public:
      int getNumber(); // Allows getNumber definition to be changed
};

class B2 : public A {
   public:
      int getNumber();
};

int A::getNumber() {
   return myNumber;
}

int B1::getNumber() {
   if (myNumber > 0)
      return myNumber;

   return 0;
}

int B2::getNumber() {
   if (myNumber < 0)
      return myNumber;

   return 0;
}

int main() {
   A anyNumber;
   B1 posNumber;
   B2 negNumber;

   anyNumber.myNumber = posNumber.myNumber = negNumber.myNumber = 25;

   std::cout << anyNumber.getNumber() << " " << posNumber.getNumber()
             << " " << negNumber.getNumber() << "\n";

   anyNumber.myNumber = posNumber.myNumber = negNumber.myNumber = -25;

   std::cout << anyNumber.getNumber() << " " << posNumber.getNumber()
             << " " << negNumber.getNumber() << "\n";

   return 0;
}

25 25 0
-25 0 -25