Getline - c reading from file

Questions

I am trying to write a program that will read integers from file and display them along with a running average. I have written code to do this and it works when the file I am reading from is in the format of:

5 6 7 8 9
2 3 4 1 2 
4 5 7 8 9 
2 5 6 2 1 
1 2 3 4 5

I am trying to make the same program read (and display the int and average as before) from a file containing:

3 4 5

3

5

7 8 9

but it doesn t display as I want it any help would be appreciated. here is my code:

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

int main()
{
    double y = 0, x = 0, value1 = 0;
    string myFileName, myString;
    cout << "please enter the name of the file you wish to open" << "
";
    cin >> myFileName;

    ifstream inFile;
    inFile.open(myFileName.c_str());

    while (!inFile.eof())
    {
        double currentAv;

        while (getline(inFile, myString, (   )))
        {
            y = y + 1;
            value1 = atof(myString.c_str());
            currentAv = (value1 + x) / y;
            cout << myString << "," << currentAv << endl;
            x = value1 + x;
        }
    }

    inFile.close();
    system("pause");
}

the output I get when I enter the first file to be opened is:

    5,5
    6,6.5
    7,6
    .......

I would like the second file when entered to display the same ie the integer and its running average but I get:

 3
 4
 5
 6
 7
,3

Answers

Just modify this portion of your code...

        double currentAv;

        while (inFile >> value1)
        {
            y = y + 1;
            currentAv = (value1 + x) / y;
            cout << value1 << "," << currentAv << endl;
            x = value1 + x;
        }

Source

License : cc by-sa 3.0

http://stackoverflow.com/questions/27463124/c-reading-from-file

Related