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Issues compiling

Lito (3)
Okay so my program would compile and work fine when I used codeblocks at school but when I use QT or the codeblocks I have at home it no longer works. I believe this is because of my multidimensional array. The program reads in from and input file divides things into arrays converts string to int for one array does some math then prints everything in SVG to make a bar graph.

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#include <iostream>
#include <fstream>
#include <string>
#include <cstring>
#include <cstdlib>

using namespace std;

void in_out_files(ifstream& fin, ofstream& fout1, ofstream &fout2, ofstream &fout3);


void read(ifstream& fin, string Names_first_last[][2], string test_grades[][10], int& max, int &amt_students);

void convert(string test_grades[][10], int test_grades_int[][10], int amt_students, int max);


void average_test(int test_grades_int[][10], double test_avg[], int max, int amt_students);


void student_average(double student_test_avg[],int test_grades_int[][10], int max, int amt_students);

void print_student_avg(double student_test_avg[], ofstream& fout1, int amt_students, string Names_first_last[][2]);




int main()
{
    const int NAMES = 2;
    const int rows = 20;
    int max = 0;
    int amt_students = 0;
    ifstream fin;
    ofstream fout1, fout2, fout3;
    string Names_first_last[rows][NAMES];
    string test_grades[rows][10];
    int test_grades_int[rows][10];
    double test_avg[max];
    double student_test_avg[amt_students];

    in_out_files(fin, fout1, fout2, fout3);
    read(fin, Names_first_last, test_grades, max, amt_students);
    convert(test_grades, test_grades_int, amt_students, max);
    average_test(test_grades_int, test_avg, max, amt_students);
    student_average(student_test_avg,test_grades_int, max, amt_students);
    print_student_avg(student_test_avg, fout1, amt_students, Names_first_last);

    cout << "TEST 2" << endl;
    fin.close();
    fout1.close();

    return 0;
}

void in_out_files(ifstream& fin, ofstream& fout1, ofstream& fout2, ofstream& fout3)
{
    fin.open("gradebook.txt");
    if (fin.fail( ))
    {
        cout << "Input file opening failed.\n";
        exit(1);
    }
    else
    {
        cout << "input opened \n";
    }
    fout1.open("student_avg.svg");
    if (fout1.fail( ))
    {
        cout << "output file 1 opening failed.\n";
        exit(1);
    }
    else
    {
        cout << "output file 1 opened \n";
    }
    fout2.open("test_avg.svg");
    if (fout2.fail( ))
    {
        cout << "output file 2 opening  failed.\n";
        exit(1);
    }
    else
    {
        cout << "output file 2 opened \n";
    }
    fout3.open("sorted test avg.svg");
    if (fout3.fail( ))
    {
        cout << "output file 3 opening failed.\n";
        exit(1);
    }
    else
    {
        cout << "output file 3 opened \n";
    }
}
void read(ifstream& fin, string Names_first_last[][2], string test_grades[][10], int &max, int& amt_students)
{
    string next;
    string grades;
    char ch;
    int row = 0;
    int test_num = 0;
    do
    {
        test_num = 0;
        for(int i = 0; i < 2; i++)
        {
            fin >> next;
            Names_first_last[row][i] = next;
            cout << Names_first_last[row][i] << " ";
        }

        do
        {
            fin.get(ch);
            if(isdigit(ch))
            {

                fin.putback(ch);
                fin >> grades;
                test_grades[row][test_num] = grades;
                cout << test_grades[row][test_num] << " ";
                test_num++;
            }

        }while(ch != '\n');
        if (test_num > max)
        {
            max = test_num;
        }


        cout << endl;
        row++;
        amt_students = row;
        fin.get(ch);
        if (!fin.eof())
        {
            fin.putback(ch);
        }
    }while(!fin.eof());
    amt_students = row;

}
void convert(string test_grades[][10], int test_grades_int[][10], int amt_students, int max)
{
    int row = 0;
    while(row < amt_students)
    {
        for(int i = 0; i < max; i++)
        {
            int temp = atoi(test_grades[row][i].c_str());
            test_grades_int[row][i] = temp;
            cout << test_grades_int[row][i] << " ";
        }
        cout << endl;
        row++;
    }
}
void average_test(int test_grades_int[][10], double test_avg[], int max, int amt_students)
{
    cout <<" MAX " << max << " MAX" << endl;
    double temp_avg = 0.0;
    int column = 0;
    cout <<" amt_students " << amt_students << " amt_students" << endl;

    while(column < max )
    {
        for (int i = 0; i < amt_students; i++)
        {
            temp_avg = (temp_avg + test_grades_int[i][column]);
        }
        test_avg[column] = temp_avg / amt_students;
        cout << "test: " << column << " " << test_avg[column] << endl;

        column++;
        temp_avg = 0;
    }
    cout << " TEST " << endl;

}
void student_average(double student_test_avg[],int test_grades_int[][10], int max, int amt_students)
{
    cout <<" MAX " << max << " MAX" << endl;
    double temp_avg = 0.0;
    int row = 0;
    cout <<" amt_students " << amt_students << " amt_students" << endl;

    while(row < amt_students )
    {
        for (int i = 0; i < max; i++)
        {
            temp_avg = (temp_avg + test_grades_int[row][i]);
        }
        student_test_avg[row] = temp_avg / max;
        cout << "student: " << row << " " << student_test_avg[row] << endl;

        row++;
        temp_avg = 0;
    }
}
void print_student_avg(double student_test_avg[], ofstream& fout1, int amt_students, string Names_first_last[][2])
{
    int Y[amt_students];
    int H[amt_students];
    string last, first;

    fout1 << "<?xml version=\"1.0\" standalone=\"no\"?>"<< endl;
    fout1 << "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\""<< endl;
    fout1 << "\"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">"<< endl;
    fout1 << "<svg width=\"1000\" height=\"1000\""<< endl;
    fout1 << "xmlns=\"http://www.w3.org/2000/svg\">"<< endl;
    fout1 << "<line x1=\"45\" y1=\"0\" x2=\"45\" y2=\"500\""<< endl;
    fout1 << "style=\"stroke:purple;stroke-width:2\"/>"<< endl;
    fout1 << "<line x1=\"45\" y1=\"500\" x2=\"800\" y2=\"500 \""<< endl;
    fout1 << "style=\"stroke:purple;stroke-width:2\"/>"<< endl;
    fout1 << "<svg xmlns=\"http://www.w3.org/2000/svg\"" << endl;
    fout1 << "xmlns:xlink=\"http://www.w3.org/1999/xlink\">\"" << endl;
    fout1 << "<text x=\""<< "200" <<"\" y=\""<< 75 <<"\" >" << endl;
    fout1 << "STUDENT AVERAGES ON TEST" <<endl;
    fout1 << "</text>" << endl;
    fout1 << "<text x=\""<< "0" <<"\" y=\""<< 100 <<"\" >" << endl;
    fout1 << "100%" <<endl;
    fout1 << "</text>" << endl;
    fout1 << "<text x=\""<< "0" <<"\" y=\""<< 200 <<"\" >" << endl;
    fout1 << "75%" <<endl;
    fout1 << "</text>" << endl;
    fout1 << "<text x=\""<< "0" <<"\" y=\""<< 300 <<"\" >" << endl;
    fout1 << "50%" <<endl;
    fout1 << "</text>" << endl;
    fout1 << "<text x=\""<< "0" <<"\" y=\""<< 400 <<"\" >" << endl;
    fout1 << "25%" <<endl;
    fout1 << "</text>" << endl;


    for(int i = 0; i < amt_students; i++)
    {
        H[i] = (student_test_avg[i] / 100) * 400;
        Y[i] = 400 - H[i];
        int Gcolor = 0, Rcolor = 0;
        if (student_test_avg[i] >= 90)
        {
            Gcolor = 255;
            Rcolor = 0;
        }
        else if (student_test_avg[i] >= 80 && student_test_avg[i] < 90)
        {
            Gcolor = 225;
            Rcolor = 75;
        }
        else if (student_test_avg[i] >= 70 && student_test_avg[i] < 80)
        {
            Gcolor = 225;
            Rcolor = 150;
        }
        else if (student_test_avg[i] >= 60 && student_test_avg[i] < 70)
        {
            Gcolor = 200;
            Rcolor = 200;
        }
        else if (student_test_avg[i] < 60)
        {
            Gcolor = 0;
            Rcolor = 255;
        }
        fout1 << "<rect x=\""<< (i * 30) + 50 <<"\" y=\""<< Y[i] + 100 <<"\" width=\"20\" height=\""<< H[i] <<"\""<< endl;
        fout1 << "style=\"fill:rgb("<< Rcolor <<","<< Gcolor <<","<< 0  <<");\"/>"<< endl;
    }

    for(int i = 0; i < amt_students; i++)
    {
        H[i] = (student_test_avg[i] / 100) * 400;
        Y[i] = 400 - H[i];
        last = Names_first_last[i][0];
        first = Names_first_last[i][1];
    fout1 << "<svg xmlns=\"http://www.w3.org/2000/svg\"" << endl;
    fout1 << "xmlns:xlink=\"http://www.w3.org/1999/xlink\">\"" << endl;
    fout1 << "<text x=\""<< (i * 30) + 50 <<"\" y=\""<< 505 <<"\" style=\"writing-mode: tb;\">" << endl;
    fout1 << last <<", " << first << endl;
    fout1 << "</text>" << endl;
    }
    fout1 << "</svg"<< endl;

}
Last edited on
Lito (3)
So commenting out line 176 lets the program run and compile without crashing but obviously screws my math up. Anyone able to tell me why?
Last edited on
Lito (3)
Line 38 messed me up had a parameter the changed values in there
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