Why am I getting different values here

[Andym]

HELP!!!!

I know I have something simple out of place here but I've been working on this for a few hours now and I cant get it right. The part of the code that I think Im having problems with is the array part. During my loop, I'm trying to build and array and by the looks of the first "cout", it appears to be correct(6 450 87, 4 291 95, 3 200 100) . but in the second "cout" (after "Total GPA is...") at the end of the loop, I get these weird values. What is happening to my array?

somebody please help......

My text file looks like this:
6 87 88 89 90 91 92 0.70
4 95 96 97 98 0.20
3 100 100 100 0.10

 //
//  main.cpp
//  GradeCalculator
//
//  Created by Andrew  on 6/4/13.
//
//

#include <iostream>
#include <fstream>
#include <string>
#include "Assignment4.h"

using namespace std;
//--------build structure
struct Grade
{
    string StudentName;
    int NoOfHomeWorkGrades;
    double HomeworkGPA;
    double HomeworkWeight;
    int NoOfProjectGrades;
    double ProjectGPA;
    double ProjectWeight;
    int NoOfExamGrades;
    double ExamWeight;
    double ExamGPA;
    double TotalGPA;
    char LetterGrade;
    string Comment;
}GradeStructure;


//----------function declarations
void GetInFileName(string&);
void GetOutFileName(string&);
int ReadFile(double&);
string GetComment(char&);
void GetLetterGrade(double&);
int OpenInFile(ifstream&);
int OpenOutFile(ofstream&);
//string GetOutFileName(string&);
int WriteData(char&, string&);
int CalculateGrade();

//-----------Main Body
int main()
{
    double TotalGPA;
    ifstream InDataFile;
    ofstream OutDataFile;
    string InFileName;
    string OutFileName;
    string Quote;
    //char LetterGrade;
    cout << "Welcome to the GradeCaculator Deluxe." << endl;
    ReadFile(TotalGPA);
    GetLetterGrade(TotalGPA);//this function calls "GetComment()"
    //WriteData(LetterGrade, Quote);
    //---------create structure--------------------
       //system ("pause");
    return 0;
}//end main
//-----------GetFileName
//-----------Get file name to read from
void GetInFileName(string& InFileName)
{
    cout << "Enter the name of the file to gather info from (including extension): ";
    cin >> InFileName;
    //reference variables do not need a return
}//end GetInFileName
//----------GetOutFileName
//----------Get name of output file
void GetOutFileName(string& OutFileName)
{
    cout << "Enter the name of the file to write info to (including extension): ";
    cin >> OutFileName;
}//end GetOutFileName
//----------OpenInFile
//----------open the user specified file to read from
int OpenInFile(ifstream& InDataFile)
{
    string InFileName;
    GetInFileName(InFileName);
    
    InDataFile.open(InFileName.c_str());
    
    if (!InDataFile)
    {
        cout << "File Failed to open...Program terminated" << endl;
        return 1;
    }//end if
    //ReadFile(TotalGPA);
    return 0;
    
}//end OpenInFile
int OpenOutFile(ofstream& OutDataFile)
{
    string OutFileName;
    GetOutFileName(OutFileName);
    
    OutDataFile.open(OutFileName.c_str());
    
    if (!OutDataFile)
    {
        cout << "File Failed to open...Program terminated" << endl;
        return 1;
    }//end if
    //ReadFile(TotalGPA);
    return 0;
}//end OpenInFile

//---------ReadFile
//---------read the user specified file
int ReadFile (double& TotalGPA)
{
    ifstream InDataFile;
    int RowNumber;
    int NoOfAssignments;
    float TotalPtsAllowed;
    int index;
    float TotalScore;
    int Grades;
    double Weight;
    double Average;
    int Assignments[3];
    //int GradeArray[50];
    //double WeightArray[3];
   
    
    
    OpenInFile(InDataFile);
    
    RowNumber = 0;
    while (RowNumber < 3)
    {//start outter loop
        InDataFile >> NoOfAssignments >> TotalPtsAllowed;
        index = 0;
        TotalScore = 0;
         Assignments[index] = NoOfAssignments;
         cout << Assignments[index] << endl;
        //cout << Assignments[0] << Assignments[1] << Assignments[2] << endl;
               
        while(index < NoOfAssignments)
        {//start (inner loop)
            InDataFile >> Grades;
            index++;
            
            TotalScore = TotalScore + Grades;
             }//end while (inner loop)
        InDataFile >> Weight;
        cout << TotalScore << "    " << TotalPtsAllowed << endl;
        Average = TotalScore / TotalPtsAllowed;
        //Average = (TotalScore / TotalPtsAllowed) * Weight;
        TotalGPA = TotalGPA + Average;
        RowNumber++;
     
    }//end while (outer loop)
    cout << "Total GPA is:: " << TotalGPA << endl;
    GradeStructure.NoOfHomeWorkGrades = Assignments[0];
    GradeStructure.NoOfProjectGrades = Assignments[1];
    GradeStructure.NoOfExamGrades = Assignments[2];
    cout << GradeStructure.NoOfHomeWorkGrades << endl;
    cout << GradeStructure.NoOfProjectGrades << endl;
    cout << GradeStructure.NoOfExamGrades << endl;

    return 0;
   
}//end ReadFile
//-----------WriteData
//-----------write the data to user specified file
int WriteData (char& LeterGrade, string& Quote)
{
    //char LetterGrade;
    //string Quote;
    ofstream OutDataFile;
    
    OpenOutFile(OutDataFile);
    OutDataFile << "NAME: A.C. Millard" << endl;
    OutDataFile << "Your Letter Grade is ::" << LeterGrade << endl;
    OutDataFile << Quote << endl;
    return 0;
}//end WrtieData
//----------GetComment
//----------Create witty comment based on the letter grade
string GetComment (char& LetterGrade)
{
    //char LetterGrade;
    //LetterGrade=GetLetterGrade();
    string Quote;
    //cout << LetterGrade << endl;
    switch(LetterGrade)
    {
        case 'A' : Quote = "The Fonz says...Exactamundo!";
            break;
        case 'B' : Quote = "The Fonz says..Aaaaeeeyyy!";
            break;
        case 'C' : Quote = "The Fonz says he was wrrroooogh about you.";
            break;
        case 'D' : Quote = "The Fonz says...Step into my office.";
            break;
        case 'F' : Quote = "The Fonz says Whoa!";
            break;
    }
    cout << Quote << endl;
    WriteData(LetterGrade, Quote);
    return Quote;
}//end GetComment
//---------GetLetterGrade
//---------Get the letter grade based on the average
void GetLetterGrade(double& TotalGPA)
{
    //cout << TotalGPA << endl;
    //double TotalGPA;
    char LetterGrade;
    
    if  (TotalGPA > 3.50)
        LetterGrade = 'A';
    else
    {
        if (TotalGPA >= 2.40 && TotalGPA < 3.50)
            LetterGrade = 'B';
        if (TotalGPA >= 1.40 && TotalGPA < 2.40)
            LetterGrade = 'C';
        if (TotalGPA >= 0.040 && TotalGPA < 1.40)
            LetterGrade = 'D';
        if (TotalGPA < .40)
            LetterGrade = 'F';
    }//end else
    cout << "Your Letter Grade is:: " << LetterGrade << endl;
    GetComment(LetterGrade);
    //return LetterGrade;
}//end GetLetterGrade

//----------CalculateGrade
//----------perform Grade Calcualtions
int CalculateGrade()
{
    int Weight;
    int Grade;
    int TotalScore;
    int  TotalPtsAllowed;
    Grade=(TotalScore / TotalPtsAllowed) * Weight;
    return Grade;
}

[maeriden]

After a quick read it seems to me that you reset 'index' to 0 every time the outer loop starts (line 138), so 'Assignments[1/2]' are never initialized.

[Andym]

I was thinking that too but when I move "index=0" out of the loop, it messes up my read of "Grades" and everything goes haywire plus it reads correctly through the loop.

[maeriden]

Can't you use 'rowNumber' to assign to 'Assignments'?