Stuck in while loop?

Question

Not quite sure where I'm going wrong. It's not outputting anything when I execute so I'm assuming its stuck somewhere and goes on endlessly. Assignment is as follows -- "Write a program that reads a file consisting of students' test scores in the range 0-200. It should then determine the number of students having scores in each of the following ranges: 0-24,25-49,50-74,75-99,100-124,125-149,150-174,175-200. Output the input data."

#include "stdafx.h"
#include "iostream"
#include "fstream"

using namespace std;

int main()
{
    ofstream outFile;
    ifstream inFile;
    int num;
    int category[8] = { 0,0,0,0,0,0,0,0 };



    outFile.open("testscores.txt");
    if (!outFile)
    {
        cout << "outFile open failed." << endl;
        return 0;
    }
    outFile << "blah blah" << endl << endl;
    inFile.open("scorestest.txt");
    if (!inFile)
    {
        cout << "infile failed" << endl;
        return 0;
    }
    inFile >> num;
    while (!inFile.eof())
    {
        if (num < 25)
            category[0]++;
        else if (num < 50)
            category[1]++;
        else if (num < 75)
            category[2]++;
        else if (num < 100)
            category[3]++;
        else if (num < 125)
            category[4]++;
        else if (num < 150)
            category[5]++;
        else if (num < 175)
            category[6]++;
        else if (num < 200)
            category[7]++;
    }



    for (int i = 0; i <= 7; i++)
    {
        cout << "Number of Grades between" << category[i] << endl;
        outFile << "Number of Grades between" << category[i] << endl;
    }
    inFile.close();
    outFile.close();


    return 0;
}

Been struggling on this for a bit. Is it perhaps my inFile? I've rewrote different code three times to get this program to work with no luck

You're not reading from your inFile in the while loop, so you're never reaching the end of file — user3288829, Nov 10 '17 at 17:38
https://stackoverflow.com/questions/5605125/why-is-iostreameof-inside-a-loop-condition-considered-wrong — Hatted Rooster, Nov 10 '17 at 17:38

score 2 · Accepted Answer · answered Nov 10 '17 at 17:38

2

You are not advancing in the file, you are operating on the one num you read before the while without reading any more nums so youre not getting to the end of the file at all.

answered Nov 10 '17 at 17:38

Patrick Artner

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Stuck in while loop?

1 Answers1