Thread: C++ help with accumulators and infile/outfile

I am back, got my last program to run properly and I thank this forum for helping.
I am working on an assignment so I can use to study for my midterm tonight but can't seem to properly outfile data.

I've came across similar problems online but can't seem to understand out to set my accumulator so my total, max, min, avg can be set for each of the lines and then outfiled.

I tried running this code but it froze my computer when opening the outfile on my desktop so please do not try it, I dont want anyones computer to freeze.

My assignment:
A file contains 7 numbers per line and contains several records. Write a program to input each of the numbers, find the highest number, the lowest number, their total and average. Output the numbers, the highest, lowest, total and average for each set of 7 numbers to another file.A file contains 7 numbers per line and contains several records. Write a program to input each of the numbers, find the highest number, the lowest number, their total and average. Output the numbers, the highest, lowest, total and average for each set of 7 numbers to another file.
Data File
346 130 982 90 656 117 595
415 948 12 64 558 571 87
42 360 412 721 463 47 119
441 190 985 214 509 2 571
77 81 681 651 995 93 74
310 9 995 561 92 14 288
466 664 892 8 766 34 639
151 64 98 813 67 834 369


Here is my code, please tell me what i am doing wrong:

Code:

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


int main()
{
    int   num, max=0, min=0, total, row=0;
    float avg=0;
    total=0;
    ifstream infile;
    ofstream outfile;
    infile.open("//Users//Eddie//Desktop//TestData.txt");
    if(!infile)
    {
        cout << "File could not be openned, terminating program." << endl;
        exit(1);
    }
    outfile.open("//Users//Eddie//Desktop//TestDataOut.txt");
    if(!outfile)
    {
        cout << "Output file could not be openned, terminating program." << endl;
        exit(1);
    }
    while(!infile.eof())
    {
        infile >> num;
        total=num;
        for(row=1; row<=7, row++; )
        {
        for(total=0, total<=7; total++;)
        {
            do
            {
                infile >>num;
                total=num+1;
                if(num>total)
                {
                    max=num;
                }
                if(num<total)
                {
                    min=num;
                }
                while(total=7)
                {
                    avg=total/7;
                }
                total=0;
                num=0;
                max=0;
                min=0;
                avg=0;
            }
            while(row<=7);
            outfile << "The greatest value is: " << max << endl;
            outfile << "The least value is:" << min << endl;
            outfile << "The total is: " << total << endl;
            outfile << "The average of the values is: " << avg << endl;
        }
        }
    }
    
    infile.close();
    outfile.close();
}

@Oldguy2
Thanks, I appreciate the input but we haven't learned some of those headers and our midterms are written on paper -.-
I think I have figured out my problem, I cant seem to have the program read the integers when I " infile>> " or read the different lines.

Thanks for the input @Oldguy2
Unfortunately we haven't used those headers and since lots of inclass stuff including tests are written out, so I'm trying to stick to what I have learned so far.
The problem I am having in my program is i cant get the infile to read the integers or how to get it to read multiple rows without using break statements.

It's too late now to edit the last post but lines 41-42 should be like this:

Code:

  int min_value = *min(numbers.begin(), numbers.end());  int max_value = *max(numbers.begin(), numbers.end());

After a bit of thinking I got a better idea.

Code:

#include <iostream>
#include <fstream>
#include <iomanip>
#include <string>
#include <sstream>
#include <vector>
#include <algorithm>
#include <numeric>
#include <exception>
#include <cstdio>

const int NUMBER_COUNT = 7;

using namespace std;

class Record
{
public:
  int min_value() const
  {
    check_valid();
    return *min_element(numbers.begin(), numbers.end());
  }
  int max_value() const
  {
    check_valid();
    return *max_element(numbers.begin(), numbers.end());

  }
  int sum() const
  {
    check_valid();
    return accumulate(numbers.begin(), numbers.end(), 0);

  }
  double avg() const
  {
    return double(sum()) / numbers.size();
  }
private:
  void check_valid() const
  {
    if(numbers.size() != NUMBER_COUNT)
      throw exception("numbers.size() != NUMBER_COUNT");
  }
  vector<int> numbers;
  friend ostream& operator<<(ostream& os, const Record& rec);
  friend istream& operator>>(istream& os, Record& rec);
};


int main()
{
  ifstream infile("numbers.txt");
  if (!infile)
  {
    cerr << strerror(errno) << "\n\n";
    exit(1);
  }
  ofstream outfile("numbers_out.txt");
  if (!outfile)
  {
    cerr << strerror(errno) << "\n\n";
    exit(1);
  }
  try
  {
    for(Record rec; infile >> rec;)
    {
      cout << rec << "\n";
      // to do - save to file 
    }
  }
  catch (const exception& ex)
  {
    cerr << ex.what() << "\n\n";
    return errno;
  }
}

ostream & operator<<(ostream & os, const Record & rec)
{
  os << "Min: " << rec.min_value() << "\tMax: " << rec.max_value() <<
        "\tSum: " << rec.sum() << "\tAvg: " << rec.avg();

  return os;
}

istream & operator >> (istream & is, Record & rec)
{
  string line;
  stringstream ss;
  int num = 0;
  rec.numbers.clear();
  getline(is, line);
  ss << line;
  while (ss >> num)
  {
    rec.numbers.push_back(num);
  }
  return is;
}

Output:
Min: 90 Max: 982 Sum: 2916 Avg: 416.571
Min: 12 Max: 948 Sum: 2655 Avg: 379.286
Min: 42 Max: 721 Sum: 2164 Avg: 309.143
Min: 2 Max: 985 Sum: 2912 Avg: 416
Min: 74 Max: 995 Sum: 2652 Avg: 378.857
Min: 9 Max: 995 Sum: 2269 Avg: 324.143
Min: 8 Max: 892 Sum: 3469 Avg: 495.571
Min: 64 Max: 834 Sum: 2396 Avg: 342.286

@Edd99: In the future, start your threads in the C++ section, instead of putting C++ in the title.