How do I overload the I/O operators C++ (edited again)? Can anyone plz help?

Question

I have created a class that allows the user to input their mailing address, order date, type of cookie ordered and the quantity. There were other errors, but I stayed late and with the assistance of my prof, I have fixed them. Now all that is left is that I need to be able to change code to overload the I/O stream operators so that the objects may be used in standard input and output statements.

I'm not sure what all part of the code everyone will need to see, but I'm going to post the parts I believe are needed for what I'm trying to do.

I need to have it where in the output(), I have cout << order << endl; I will look over the net and will hopefully have it ready by tonight. Thanks for everyone's input.

Was instructed to take down my code due to other students from class copying my code pieces to do their work (knew it was possible but didn't think about it)

However, my code is complete.

I greatly appreciate all input. Thanks a lot and Happy Holidays!

Answer 1

As far as comparison is concerned, you'd be better off comparing all upper or all lower (rather than each word's first letter upper), it's simpler to set things that way.

Moreover you should get into the habit of putting braces around code

Why do you have a magic number of 6 in your loop? Especially when you only have five (5) elements.

Perhaps the loop should be

...

int loop_size = sizeof(flavors)/sizeof(flavors[0]);

for (int i = 0; i < loop_size; ++i)

{

   if (flavors[i] == cookieOrdered)
   {
       valid_option = true;
       break;
  }

}

Answer 2

Hint: lookup Case insensitive string comparison in C++

Answer 3

Implement two functions: basic_ostream & operator<< (basic_ostream& ostr, const CookieOrder& co) basic_istream & operator>> (basic_istream& istr, CookieOrder& co)

the operator<<= function will be called when you use cout << order << endl; and the operator>> function will be called when you use the >> (stream extraction) operator. Be very careful how you implement the stream extraction operator.

You may want to declare either of these as friend to the CookieOrder, as that will allow the function to access the private parts of the class as if the function is a member of the class.

---

edit to respond to changes in the question

delcare your class as before:

class CookieOrder {
public:
// public methods as before
private:
// private parts as before
};
basic_ostream & operator<< (basic_ostream& ostr, const CookieOrder& co);
basic_istream & operator>> (basic_istream& istr, CookieOrder& co);

Implement the two functions using only the public interface of the CookieOrder class.

For example:

basic_ostream & operator<< (basic_ostream& ostr, const CookieOrder& co)
{
ostr << co.get_customerName() << endl;
/* the rest of the output */
}

These functions are not members of the CookieOrder class, they are normal functions with no special access to the CookieOrder class or instanaces of the class.