void Inventory::operator=(const Inventory& I)
{
	strcpy(model,I.model);
	quantity=I.quantity;
	cost=I.cost;
	price=I.price;
	totalCost=I.totalCost;
	totalRevenue=I.totalRevenue;
}

ostream& operator<<(ostream& out, const Inventory& I)
{
	out<<I.model<<" "<<I.quantity<<" "<<I.cost<<" "<<I.price<<" "<<I.totalCost<<" "<<I.totalRevenue<<endl;
	
	return out;
}