how to pass arguments to the base classes of a derived class by modifying the preceding program : Derived « Class « C++

1. C++
2. Class
3. Derived

how to pass arguments to the base classes of a derived class by modifying the preceding program

  
#include <iostream>  
using namespace std;     

class X {  
protected:  
  int a;  
public:  
  X(int i);  
};  
     
class Y {  
protected:  
  int b;  
public:  
  Y(int i);  
} ;  
     
class Z : public X, public Y {  
public:  
  Z(int x, int y);  
  int make_ab(void);  
} ;  
     
X::X(int i)  
{  
  a = i;  
}  
     
Y::Y(int i)  
{  
  b = i;  
}  
     
Z::Z(int x, int y) : X(x), Y(y)  
{  
  cout << "initializing\n";  
}  
     
int Z::make_ab(void)  
{  
  return a*b;  
}  
     
main(void)  
{  
  Z i(10, 20);  
     
  cout << i.make_ab();  
     
  return 0;  
}
  
    
  

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