reading a txt file

[lolpwn]

I'm working on two programs, one that continuously asks you to choose a item from its menu until you press x, which ends the loop, and saves the total cost of all the items ordered into a .txt file and the other program, that displays whats in the file.
I'm having trouble with my second program. What I want the program to do, is read the numbers in the .txt file, add them all up and display the sum. When I run my second program all I get is 0.

text file example :

 
                     50
                     60
                     12.50
                     80.70
                   

my first progam :
#include <iostream>
#include <string>
#include <fstream>
using namespace std;

int main()
{
	ofstream  testfile1;
	
	double sum = 0;
	double teacount = 0;
	
	double coffeecount = 0;

	char lastorder = ' ';
	
	double teasum = 0;
	double coffeesum = 0;

	string name = "";
   testfile1.open("testname.txt", ios::app);
   
   
	   do {

		   cout << "C- coffee ($2) \n ";
		   cout << "T- TEA ($3) \n ";

		   cin >> lastorder;

		   switch (lastorder) {
		   case  'C': {

			   coffeecount++;
			   cout << "Coffee " << "!" << coffeecount << "!" << endl;
			   break;
		   }
		   case  'c': {

			   coffeecount++;
			   cout << "Coffee" << "!" << coffeecount << "!" << endl;
			   break;
		   }
		   case 'T': {

			   teacount++;
			   cout << "TEA " << "!" << teacount << "!" << endl;
			   break;
		   }

		   case 't': {

			   teacount++;
			   cout << "TEA " << "!" << teacount << "!" << endl;
			   break;
		   }


		   default: {

			   //cout << " wrong order try again ! \n";
		   }

		   }


	   } while (lastorder != 'X'&& lastorder != 'x');
	

	coffeesum = coffeecount * 2;
	teasum = teacount * 3;
	sum = coffeesum + teasum;
	
	testfile1 << sum<<endl; 
testfile1.close();
	cout << "Coffe: " << coffeecount << endl;
	cout << "Tea: " << teacount << endl;
	cout << "Total cost: " << sum << endl;

My second program
#include <iostream>
#include <string>
# include <fstream>
using namespace std;

int main()
{
	ifstream testfile2;

	double sum = 0;
	double filenum =0;
	filenum = testfile2.get();
	testfile2.open("testname.txt", ios::in);
	
     testfile2 >> filenum;
	 
	while (!testfile2.eof()) {
		sum = filenum = 0;
		cout << "File is open \n";

		sum = sum + filenum;
		
			testfile2 >> filenum;
   			
	}
	testfile2.close();
	
	 cout << "total: " << sum<< endl;
	
	return 0;
}

[rghrist23]

That is because line 14 of 2nd:

sum = filenum = 0;//sets both to zero for every iteration of the loop 

.

[lolpwn]

Okay, I commented out that line and I'm still getting zero for my output.

[rghrist23]

I removed line 8 and line 14, and ran with test inputs that you provided in "testname.txt" with VS2015. I added in a cout for the sum.It's output was

File is open
SUM:50
File is open
SUM:110
File is open
SUM:122.5
File is open
SUM:203.2
total: 203.2
Press any key to continue . . .

[lolpwn]

It's not even doing the while loop anymore.

[rghrist23]

If you do not post your changed code, it won't help us with debugging it. Here is what I have that is working which is a copy paste of your above code with those two line deletes.

#include <iostream>
#include <string>
# include <fstream>
using namespace std;

int main()
{
	ifstream testfile2;

	double sum = 0;
	double filenum = 0;
	testfile2.open("testname.txt", ios::in);

	testfile2 >> filenum;

	while (!testfile2.eof()) {
		//sum = filenum = 0;
		cout << "File is open \n";

		sum = sum + filenum;
		cout << "SUM:" << sum << endl;

		testfile2 >> filenum;

	}
	testfile2.close();

	cout << "total: " << sum << endl;

	return 0;
}

[lolpwn]

I tried it as you typed, but now when I run the program, it runs the code inside the wile loop infinitely

#include <iostream>
#include <string>
# include <fstream>
using namespace std;

int main()
{
	ifstream testfile2;

	double sum = 0;
	double filenum = 0;
	testfile2.open("testname.txt", ios::in);

	testfile2 >> filenum;

	while (!testfile2.eof()) {
		//sum = filenum = 0;
		cout << "File is open \n";

		sum = sum + filenum;
		cout << "SUM:" << sum << endl;

		testfile2 >> filenum;

	}
	testfile2.close();

	cout << "total: " << sum << endl;

	return 0;
}

[rghrist23]

Well that is pretty odd, it may have to deal with using the eof().
Let's try using:

	//testfile2 >> filenum;

while (testfile2 >> filenum) {
		//sum = filenum = 0;
		cout << "File is open \n";

		sum = sum + filenum;
		cout << "SUM:" << sum << endl;


	}

[lolpwn]

Wow Thank you it works