C / C++ / MFC

Eugen Podsypalnikov wrote:

- C++\Optimization: NO

T.RATHA KRISHNAN wrote:

I've printed the same variable inside another derived class. But it prints nothing.

#include <iostream>
class A
{
protected:
  int a;
public:
  A(int a):a(a){}
  void show(){ std::cout << "this is A, a=" << a << std::endl;}
};

class B: public A
{

public:
  B(int b):A(b){}
  void show(){ std::cout << "this is B, a=" << a << std::endl;}
};

class C: public B
{

public:
  C(int c):B(c){}
  void show(){ std::cout << "this is C, a=" << a << std::endl;}
};


int main()
{
  A a(3);
  B b(4);
  C c(5);

  a.show();
  b.show();
  c.show();

  return 0;
}

T.RATHA KRISHNAN wrote:

I've declared a protected variable in a base class. I've assigned value and print the variable in a derived class. It prints correctly. I've printed the same variable inside another derived class. But it prints nothing. How to print the variable that is altered inside another derived class?

class A
{
protected:
    static int my_class_variable;
};

int CGameState::musicVolume = 0;