Thread: Function wont work! inheritence problem ??

Code:

#include <iostream> 
#include "CompactDisk.h"
#include "Program.h"
#include "Music.h"


using namespace std;


int main() {
    
    CompactDisk* CD[10];
    CD[0] = new Program();


    cout << CD[0]->getBCode() << endl;
    cout << CD[0]->getLabel() << endl;
    cout << CD[0]->getNofChosers() << endl;
    cout << CD[0]->AviableDiskSize() << endl;
    CD[0]->infoList();
    cout << CD[0]->getOS() << endl;






    return 0;
}

Code:

#ifndef PROGRAM_H
#define PROGRAM_H
#include <iostream> 
#include "CompactDisk.h"


using namespace std;


class Program : public CompactDisk {
private:
    char* programList[10];
    char* OS; //operating sys
    int prgCount;


public:
    Program();
    ~Program();


    char* getProgramList() const;
    void setProgramList(char*);
    char* getOS() const;
    void setOS(char*);


    virtual int AviableDiskSize();
    virtual void infoList();


};


#endif PROGRAM_H

I try to use getOS function which belongs to class Program.
Program inherite from CompactDisk.
why it wont recognize it in main ??
CD[0] will use only CompactDisk methods!!

Ok before I am attacked by someone whom is more refreshed on C++ then I am I just I been using C# and Java ALOT and very little C++. If you do not use it you loose it but this seems to be a very good lesson is OOP.

Are you having issue accessing the field variables in main? Before I lead you astray try to pass in CompactDisk to Program in the constructor. Now Program will know about CompactDisk. If this works I will explain more in detail but if not I will be quite.

what do you mean pass in CompactDisk to Program in the constructor ?

Code:

Program( CompactDisk disk);

When you create a new compactDisk into Program in main it is aware of the fields of compactDisk

it already knows about the non-private members of its CompactDisk base subobject.

I was not sure if he was trying to access private members. ie if there was a private variable in one of his functions what was suppose to return it value. The cpp file was not posted but I knew eventually someone much smarter then I would come a long and correct us