some trouble with priming loop. help would be grateful!

[azoom]

Hi, I need to make this loop but I'm having trouble. if i type 999 it will quit, but if i don't type 999 it will infinite loop. Can anyone give me some insight？ Would be grateful.

#include <iostream>
#include <string>
#include <sstream>
#include <vector>
using namespace std;



int main() 
{ 
double cName; 
string cState; 
double dPrice = 0, pDiscount = 0, pPrice = 0, tCost = 0, sTax= 0; 
cout << "this program was created by arthur gregory)" << endl;

cout << "What is your name, 999 to quit";
cin >> cName;

while (cName != 999)

		{
			cout << "What is your state? (Please enter the complete name)";
			cin >> cState;
			cout << "What is the product price";
			cin >> pPrice;
			if (pPrice > 300)
				pDiscount = .20 * pPrice;
			else
				pDiscount = 0;
			dPrice = (pPrice - pDiscount);

			if (cState == "Indiana")
				sTax = .07 * dPrice;
			else
				sTax = 0;
			tCost = dPrice + sTax;
			
			cout << "Name: " << cName << endl;
			cout << "state: " << cState << endl;
			cout << "Price: " << pPrice << endl;
			cout << "Discount Price: " << dPrice << endl;
			cout << "Tax: " << sTax << endl;
			cout << "Final price: " << tCost << endl;
			
	cout << "What is your name?(please type 999 to end)";
	cin >> cName;
	} 





}

I need to make my code organized better, sorry about that.

[Zhuge]

You've told it to loop forever so long as you don't enter 999. Isn't that what you want? To only quit when something other than 999 is entered? Or I am missing something here?

[azoom]

i want it to ask the name and then ask the other questions then after input everything it will start back from the beginning again. then if i type 999 anytime it will stop

[azoom]

bump

[AbstractionAnon]

line 11: Why is cName a double? If you enter something other than a number, the cin operation will fail. cName will not be changed and the comparison to 999 will fail.

[azoom]

I tried int and i get the same errors, and string won't even run. What should I use?

[AbstractionAnon]

Why would you even try an int? You're going to have exactly the same problem. cin is going to fail if you try to enter a non-numeric name into an int.

What do you mean "string won't even run"?
cName should be a string.

Keep in mind at line 19, you're going to have to do a string compatible comparison.

  while (cName != "999")  // Note the quotes