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I need help

Brianna (16)
I'm a college freshman with no experience in programming. Can I please have some help with errors and adding code (based on the instructions) to my project?

I need help figuring out how to execute the first option in this menu:

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cout << "Would you like to empty your cart? (Y or N)" << endl;
	cin >> choice;
	if (choice == 'y' || choice == 'Y')
	{
	cout << "Choose between: " << endl;
	cout << "1. A specific item" << endl;
	cout << "OR" << endl;
	cout << "2. The whole cart" << endl;
	cin >> num;
	cin.clear();
	cin.ignore();

		if(num == 1)
		{

		}
	
		else if(num == 2)
		{
			cart = " ";
		}
	}

	else displayMenu();


And I need help with this error. Visual Studio tells me it's error C3681.
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int maintainCart(Cart info)
{
	cout << "How many would you like to buy?" << endl;
	cin >> info.quantity;
	
	while (info.quantity < 1)
	{
		cout << "Invalid amount. You must choose one item.";
		cin >> info.quantity;
	}
	cout << endl;

	calculateSubtotal(info); // error C3681
	return 0;
}
Ispil (788)
Going to need all of the code here.
giblit (3750)
Umm can you post the full error? How are we supposed to know what c3681 is :P Anyways the neat thing about compiler errors are they tell you the line and what the error is. Only thing I can guess about your error is that you are not taking a "Cart" object as a parameter in the function calculateSubtotal.

Does your function look like:
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void calculateSubTotal( Cart cart )
{
    //stuff
}
?

white beauty (12)
display full program :/
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