Thread: Sentinel Value and numbering

Right now, I'm trying to write a program that simply lets the user enter in numbers, which are then stored in a file. My problem stems from the fact that this is my first instance in using a sentinel value to allow the user to enter in information as long as they wish. I just need to number the user's inputs on the screen, but I can't seem to figure out how, since the program doesn't actually use a loop to enter in my more values. Here is my code thus far:

Code:

#include<iostream.h>
#include<iomanip.h>
#include<fstream.h>

const int SENTINEL = 1337;


int main()
{

	int data;
	int number;
	ofstream out_file;

	cout << "This program is designed to record up to 50 scores between the values of 0 and";
	cout << " 100.  The scores will then be stored in another file.  Please enter all of";
	cout << " the needed scores and type -1337 to end the program and store the values.";
	cout << endl << endl;

	number = 1;

	out_file.open("stat_data");
	cout << "Enter an integer (1337 to end input):\n";
	cout << number << ".  ";
	cin >> data;


	while ( data < 1 || data > 1000)
	{
				
		cout << "\nThe number entered was not within the parameters. \n\nPlease try again:\n";
		cin >> data;
			
	}

	while (data != SENTINEL)
	{
		out_file << data << " ";
		cout << "Enter an integer (1337 to end input): ";
		cin >> data;
	}

	out_file.close();
return 0;
}

The variable "number" is what I'm using to label each input. When I had loops in the past, I could just insert

Code:

number = number++;

but not now. Thanks for any help.