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Overloading output stream and pure virtual functions

ohlala191785 (11)
Hey everyone.

I'm working with inheritance and pure virtual functions, and I want to overload an output stream operator. However, every time I run the program I get this: 0x7fff00ee98c0.

I'll include a base class and a derived class so you can see what I'm talking about.

Base:
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#include <iostream>
using namespace std;
#ifndef _Insurance_h_
#define _Insurance_h_

class Insurance {
protected:
        string name;
        float commission;
        string salesperson;
public:
        virtual void Commission() = 0;
        string getName();
        string getSalesperson();
        float getCommission();
        friend ostream& operator<<(ostream &strm, const Insurance& i) {
                i.Print(strm);
                return strm;
        }
        virtual void Print(ostream&) const = 0;
};
#endif


Derived:
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#ifndef _Auto_h_
#define _Auto_h_
#include "Insurance.h"

class Auto : public Insurance {
private:
        string make;
        string model;
        int VIN;
        float liability;
        float collision;
public:
        Auto(string, string, string, string, int, float, float);
        void Commission();
        void Print(ostream&) const;
};
#endif 


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#include "Auto.h"

Auto::Auto(string n, string sales, string make, string model, int VIN, float lia, float col) {
        name = n;
        salesperson = sales;
        make = make;
        model = model;
        VIN = VIN;
        liability = lia;
        collision = col;
}

void Auto::Commission() {
        commission = (liability + collision) * 0.3;
}

void Auto::Print(ostream &strm) const {
        strm << "Auto - Name of insured: " << name << endl;
        strm << "Make and model of car: " << make << ", " << model << endl;
        strm << "VIN : " << VIN << endl;
        strm << "Liability coverage: $" << liability << endl;
        strm << "Collision coverage: $" << collision << endl;
        strm << "Commission: $" << commission << endl;
}


The application is something like this (I'm assuming the user has already inputted the name, salesperson, make, model, etc):
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#include "Auto.h"
#include <iostream>
using namespace std;
#include <vector>

vector<Insurance *> sales;
Auto a1(name, salesperson, make, model, VIN, liability, collision);
sales.push_back(&a1);
for(int i=0; i<sales.size(); ++i) {
     cout << i << ". " << sales[i] << endl;
}
Last edited on
Peter87 (11234)
You are storing pointers in the vector so sales[i] will give you a pointer.
ohlala191785 (11)
How would I print the actual object? (still using overloaded operators and virtual functions)
Peter87 (11234)
 
 
cout << i << ". " << *sales[i] << endl;
ohlala191785 (11)
I tried that, and the system printed this:
pure virtual method called
terminate called without an active exception
1. Aborted
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