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point me in the right direction pls!

Billyin4C (53)
I have a pretty decent grasp on value returning functions but having a little trouble with the voids. Just need a little push in the right direction. Heres the program:

A dept store wants a program that displays the # of reward points a customer earns each month (based on the customers membership type and total monthly purchase amount)

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  #include <iostream>
#include <iomanip>
using namespace std;

//function prototypes
void displayStandard(double totalBalance);
void displayPlus(double totalBalance);
void displayPremium(double totalBalance);

int main()
{
	double balance = 0.0;
	int points = 0;

		cout << "Please enter your monthly balance: ";
		cin >> balance;


	displayStandard(points);
	displayPlus(points);
	displayPremium(points);



	system("pause");
	return 0;
}//end of main

//*****function definitions*****
int rewards = 0;
void displayStandard(double totalBalance)
{
	if (totalBalance < 75)
		rewards = .05 * totalBalance;
	
	else if (totalBalance >= 75 && totalBalance <= 149.99)
		rewards = .075 * totalBalance;

	else (totalBalance >= 150);
	rewards = .10 * totalBalance; 

}

void displayPlus(double totalBalance)
{
	if (totalBalance < 150)
		rewards = .06 * totalBalance;
	else
		rewards = .13 * totalBalance;
}

void displayPremium(double totalBalance)
{
	if (totalBalance < 200)
		rewards = .04 * totalBalance;
	else
		rewards = .15 * totalBalance;
}
TarikNeaj (2580)
but having a little trouble with the voids.

You never mention what kind of trouble and what the problem actually is here, so I dont know what you need help with.
Billyin4C (53)
touche....I can't seem to figure out how to get the reward points to show.
TarikNeaj (2580)
Can't you simply print out the points?

cout << totalbalance;

If this is not what you're looking for, and Im guessing it's not. Please make a bit more of an effort explaining what you want to do in detail.
Billyin4C (53)
The only other spec the program has is "The program should use a separate void function for each membership type".

What I am trying to do is have the user input their balance and then call the void functions to display the rewards points for the 3 tiers (standard, Plus, and Premium)

We are also learning how to pass by reference so I'm not sure if I should be using this for this particular program
TarikNeaj (2580)
If all you want to do is display the reward in all 3 functions, why can't you simply print out the reward in the functions?


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void displayStandard(double totalBalance)
{
	if (totalBalance < 75)
		rewards = .05 * totalBalance;
	
	else if (totalBalance >= 75 && totalBalance <= 149.99)
		rewards = .075 * totalBalance;

	else (totalBalance >= 150);
	rewards = .10 * totalBalance; 

        cout << "Reward points for standard: " << rewards;

}
Last edited on
Billyin4C (53)
Thanks for your timely help Tarik, but wife and kids aren't going to seem to let me work in quiet..... I did what you suggested I'll try to work it out tomorrow and if need be come back. Thanks again
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