Input file deleted whenever I run the program

[Dofzky]

I am trying to make a program that calls an input and output function to a file. My goal is that a user could change the integers stored in the stores array, then later if they used the program again they could read it off of the same file. I have the output working fine, but even with existing data anytime I run the program it deletes everything in the file so there is nothing to read. I do have it set up to delete the file and make a new one whenever I run the output, but if that function is never called up I don't understand why it clears all the text. Any help would be appreciated.

#include <iostream>
#include <string>
#include <fstream>

using namespace std;

const int SIZE = 5;

int stores[SIZE];
string food[SIZE] = { "Milk", "Eggs", "Beef", "Poultry", "Flour" };
const int milk_Choice = 1;
const int eggs_Choice = 2;
const int beef_Choice = 3;
const int poultry_Choice = 4;
const int flour_Choice = 5;
const int list_Choice = 6;
const int math_Choice = 7;
const int output_Choice = 8;
const int input_Choice = 9;
const int end_Choice = 10;


void options();
void addFunction(int stores[]);
void showMilk(int stores[], string food[]);
void showEggs(int stores[], string food[]);
void showBeef(int stores[], string food[]);
void showPoultry(int stores[], string food[]);
void showFlour(int stores[], string food[]);
void fromFile(int stores[], ifstream &inFile);
void toFile(int stores[], ofstream &outFile);
void mathTotal(int stores[]);


int main()
{
	int choice;
	ofstream outFile("Total_List.txt");
	ifstream inFile("Total_List.txt");

	cout << "This program will allow you to store and view common foodstuffs in stock" << endl;
	cout << endl;
	options();
	cin >> choice;

	do
	{
		if (choice > 10 || choice < 0)
		{
			cout << "Please enter an appropriate choice" << endl;
			cout << endl;
			options();
			cin >> choice;
		}
		else if (choice == milk_Choice)
		{
			showMilk(stores, food);
			options();
			cin >> choice;
		}
		else if (choice == eggs_Choice)
		{
			showEggs(stores, food);
			options();
			cin >> choice;
		}
		else if (choice == beef_Choice)
		{
			showBeef(stores, food);
			options();
			cin >> choice;
		}
		else if (choice == poultry_Choice)
		{
			showPoultry(stores, food);
			options();
			cin >> choice;
		}
		else if (choice == flour_Choice)
		{
			showFlour(stores, food);
			options();
			cin >> choice;
		}
		else if (choice == list_Choice)
		{
			addFunction(stores);
			options();
			cin >> choice;
		}
		else if (choice == math_Choice)
		{
			mathTotal(stores);
			options();
			cin >> choice;

		}
		else if (choice == output_Choice)
		{
			toFile(stores, outFile);
			options();
			cin >> choice;
		}
		else if (choice == input_Choice)
		{
			fromFile(stores, inFile);
			options();
			cin >> choice;
		}
		else if (choice == end_Choice)
		return 0;			

		} while (choice == milk_Choice || choice == eggs_Choice || choice == beef_Choice || choice == poultry_Choice || choice == flour_Choice
			|| choice == list_Choice || choice == list_Choice || choice == math_Choice || choice == output_Choice || choice == input_Choice);

		system("pause");
	
}




void options()
{
	
	cout << "Please select from the following options" << endl;
	cout << "1. View Milk(Gallons)" << endl;
	cout << "2. View Eggs(Dozens)" << endl;
	cout << "3. View Beef(lbs.)" << endl;
	cout << "4. View Poultry(lbs.)" << endl;
	cout << "5. View Flour(lbs.)" << endl;
	cout << "6. Change the amount of items" << endl;
	cout << "7. Total amount of all items" << endl;
	cout << "8. Send information to file" << endl;
	cout << "9. Retrieve information from file" << endl;
	cout << "10. End Program" << endl;

}


void addFunction(int stores[]) // The various sum functions
{

	for (int i = 0; i < SIZE; i++)
	{
		cout << "Enter how many " << food[i] << " you wish to track." << endl;
		cin >> stores[i];
		cout << endl;
	}

}

void showMilk(int stores[], string food[])
{
	cout << "You have " << stores[0] << " gallons of "<< food[0] << endl;
	cout << endl;
}

void showEggs(int stores[], string food[])
{
	cout << "You have " << stores[1] << " dozen "<< food[1] << endl;
	cout << endl;
}

void showBeef(int stores[], string food[])
{
	cout << "You have " << stores[2] << " pounds of "<< food[2] << endl;
	cout << endl;
}

void showPoultry(int stores[], string Food[])
{
	cout << "You have " << stores[3] << " pounds of "<<food[3] << endl;
	cout << endl;
}

void showFlour(int stores[], string food[])
{
	cout << "You have " << stores[4] << " pounds of "<<food[4] << endl;
	cout << endl;
}

void toFile(int stores[], ofstream &outFile)
{
	remove("Total_List.txt");
	for (int i = 0; i < SIZE; i++)
		outFile << stores[i] << endl;
	outFile.close();

	cout << " The quantity of each item has been listed onto the file" << endl;
	cout << endl;
	

}

void fromFile(int stores[], ifstream &inFile)
{
	inFile.open("Total_List.txt");
	for (int i = 0; i < SIZE; i++)
		inFile >> stores[i];
	inFile.close();
	cout << " Your inventory has been updated from the file" << endl;	
	cout << endl;

}

void mathTotal(int stores[])
{
	int grandTotal = 0;
	grandTotal = stores[0] + stores[1] + stores[2] + stores[3] + stores[4];
	cout << " The total amount of food items you have is " << grandTotal << endl;
	cout << endl;

}

[E0p9LyTq]

Why is your file disappearing? Line 185: remove("Total_List.txt");
http://www.cplusplus.com/reference/cstdio/remove/

[Dofzky]

But why is it deleting it if I don't call the function that has it? Is there a better way to do it? I originally added that command because it kept adding more integers instead of replacing the existing ones. I read something about truncating but I didn't fully understand it.

[E0p9LyTq]

http://www.cplusplus.com/reference/fstream/ofstream/open/

Instead of remove(), open the file: outFile.open ("test.txt", std::ofstream::out | std::ofstream::trunc);

[Dofzky]

That worked great, thanks for the help.