Can someone help me with my c++ code? I am trying to overload the operator== to

Question

Can someone help me with my c++ code?

I am trying to overload the operator== to compare the first_name, last_name, and SSN of different customers but im not sure how to access those elements. I also want to overload the operator to print out the customer using an ostream. If someone could feel in some of the holes for me that would be awesome.

#include <iostream>

using namespace std;

class customer

{

string last_name,first_name;

int SSN;

friend void compare_customer(customer x,customer y);

friend void print_customer(customer x);

public:

customer(string first_name, string last_name, int SSN){}

};

void compare_customer(customer x, customer y)

{

cout<<x.first_name;

}

void overload(ostream& os,customer x)

{

}

void print_customer(customer x)

{

cout<<"Customer:"<<endl;

cout<<x.last_name;

}

int main()

{

customer customer1("Brian","Bonds",78765421);

customer customer2("Jim","Smith",987654321);

print_customer(customer1);

compare_customer(customer1, customer2);

}

Explanation / Answer

#include <iostream>
#include <string>

using namespace std;

class customer{
private:
   string last_name, first_name;
   int SSN;
public:
   customer(string fn, string ln, int ssn){
       first_name = fn;
       last_name = ln;
       SSN = ssn;
   }

   bool operator==(const customer &x){
       return x.last_name == last_name && x.first_name == first_name && x.SSN == SSN;
   }
  
   friend ostream &operator<<(ostream& out, customer &x);
  
};

ostream &operator<<(ostream& out, customer &x){
   out << "Name: " << x.first_name << " " << x.last_name << endl;
   out << "SSN: " << x.SSN << endl;
   return out;
}

int main(){
   customer customer1("Brian","Bonds",78765421);
   customer customer2("Jim","Smith",987654321);
   cout << "Customer1 " << customer1 << endl;
   cout << "Customer2 " << customer2 << endl;
   if(customer1 == customer2){
       cout << "Both customers are equal" << endl;
   }
   else{
       cout << "Both customers are not equal" << endl;
   }
   return 0;
}

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