Program Help!

[ivertony]

Hi, I've been having trouble with a program where I have to name my own text file then input a string of numbers. In the second step I must process the existing file and extract the numbers then add them all up, find the average of the sum, and ultimately output the average.

Here is what I have at the moment:
#include <iostream>
#include <fstream>
#include <string>

using namespace std;

int main()
{
int selection, number = 0;
string fileName;
ofstream test;
cout << "Welcome to the number cruncher program would you like to" << endl;

do {
cout << "1) Enter numbers to a new file" << endl;
cout << "2) Process numbers from an already existing file" << endl;
cout << "Please enter your number selection" << endl;
cin >> selection;
} while (selection != 1 && selection != 2);

if (selection == 1)
{
cout << "Please enter a file name that your numbers will be saved to: " << endl;
cin >> fileName;
test.open(fileName);
do
{
cout << "Please enter a positive number or enter a negative number to quit" << endl;
cin >> number;
if (number > 0)
test << number << " ";
} while (number >= 0);
test.close();
}

if (selection == 2)
{
double average = 0;

cout << "Please state the file you would like to access:" << endl;
getline(cin, fileName);\\Here is where I'm having
cin.ignore(); \\trouble with extracting
ifstream release; \\averaging and outputting.
string console;
string line;
release.open(fileName);
if (release)
{
while (release >> line)
{
console += line + "\n";

}
}

else
cout << "Error opening file." << endl;
cout << console << endl;
release.close();
}

system("Pause");
return 0;
}

Any and all advice is appreciated! Thank you for your time.

[2UD8vCM9]

The reason you're not able to open the file, is because you aren't actually getting the file name like you think you are.

You need to call cin.ignore(1000,'\n'); before you call getline after you cin>> anything.

So it should look like

cout << "Please state the file you would like to access:" << endl;
cin.ignore(1000, '\n');
getline(cin, fileName); 

That being said, when you are reading the contents why are you reading them into a string? Where you have while (release >> line) why are you not reading it into a double or float instead so you can actually add it to the sum to average?

[ivertony]

Cool, thanks for the help! It worked out very well.