Before starting, I must first say that I have already considered possible solutions to this error. Unfortunately, they all involve the use of arrays, which is a requirement for my project. Also, I am currently taking Intro on CS, so my experience is close to not having it.
The purpose of the array is to collect names from a file. Therefore, to initialize the array, I count the number of names and use it as the size. The problem is the error indicated in the header, but I see no way to get around it while still using the 1D array.
main.cpp
#include <iostream>
#include <cstdlib>
#include <fstream>
#include <string>
#include <iostream>
#include "HomeworkGradeAnalysis.h"
using namespace std;
int main()
{
ifstream infile;
ofstream outfile;
infile.open("./InputFile_1.txt");
outfile.open("./OutputfileTest.txt");
if (!infile)
{
cout << "Error: could not open file" << endl;
return 0;
}
string str;
int numLines = 0;
while (infile)
{
getline(infile, str);
numLines = numLines + 1;
}
infile.close();
int numStudents = numLines - 1;
int studentGrades[numStudents][maxgrades];
string studentID[numStudents];
infile.open("./InputFile_1.txt");
BuildArray(infile, studentGrades, numStudents, studentID);
infile.close();
outfile.close();
return 0;
}
HomeworkGradeAnalysis.cpp
using namespace std;
void BuildArray(ifstream& infile, int studentGrades[][maxgrades],
int& numStudents, string studentID[])
{
string lastName, firstName;
for (int i = 0; i < numStudents; i++)
{
infile >> lastName >> firstName;
studentID[i] = lastName + " " + firstName;
for (int j = 0; j < maxgrades; j++)
infile >> studentGrades[i][j];
cout << studentID[i] << endl;
}
return;
}
HomeworkGradeAnalysis.h
#ifndef HOMEWORKGRADEANALYSIS_H
#define HOMEWORKGRADEANALYSIS_H
const int maxgrades = 10;
#include <fstream>
using namespace std;
void BuildArray(ifstream&, int studentGrades[][maxgrades], int&, string studentID[]);
void AnalyzeGrade();
void WriteOutput();
#endif
Text files have a simple format:
Boole, George 98 105 0 0 0 100 94 95 97 100
Each row is similar to this, with a different number of students.
, ?