inheritance- using base constructor question

[mirauta]

Hello,

Bellow I have some code.
I am trying to use in the child class pointcl the constructor from point. it doesn't work :). ( x is not initialized in the child class object).

Thank you
Bogdan



#include <iostream>

using namespace std;
class point{
int x;
public:
point(int a ){x=a; cout<<"classa point";}
};

class pointcl:public point{
int x,z;
public:
pointcl(int a,int c ):point(a){
z=c;
cout<<x;}
};

int main()
{
pointcl A(77,3);

}

[imi]

You declare another variable "x" in the class pointcl. This will hide the other variable in point. Instead, you can make the int x in class point "protected" and remove the declaration in the subclass:

class point{
protected:
  int x;
public:
...
};

class pointcl:public point{
int z;
...

Ciao, Imi.