Help Needed Fast! Multiple Choice Grading Program
Hey there,
I'm working on a program that grades multiple-choice exams. It compiles, but I keep getting a linking error, LNK2019: unresolved external symbol. I can't find this unresolved symbol, and I was wondering if someone else could. Or give some tips on how to fix it? And also, it's due in two hours, so quick help is appreciated!
Code:
Code:
#include <iostream>
#include <string>
#include <fstream>
using namespace std;
void OpenFiles (ifstream& inFile, ofstream& outFile);
void WrongSize (ofstream& outFile, int keylength, string answers, string key);
int main()
{
ifstream inFile;
ofstream outFile;
OpenFiles(inFile, outFile);
if (!inFile || !outFile)
{
cout << "Error opening files." << endl;
return 1;
}
string key;
string student;
string answers;
int keylength;
inFile >> key;
keylength = key.length();
while(inFile >> student >> answers)
{
outFile << student << " ";
WrongSize(outFile, keylength, answers, key);
}
return 0;
}
//**************************************************************
void OpenFiles(ifstream& inFile, ofstream& outFile)
{
string inFileName;
string outFileName;
cout << "Enter the name of the input file." << endl;
cin >> inFileName;
inFile.open(inFileName.c_str());
cout << "Enter the name of the output file." << endl;
cin >> outFileName;
outFile.open(outFileName.c_str());
outFile << "Scores for multiple-choice exam from " << inFileName << endl;
outFile << fixed;
}
void WrongSize(ofstream& outFile, int keylength, string answers, string key)
{
int grade = 0;
bool check;
if (answers.length() < keylength)
{
outFile << "Too few answers";
}
else if (answers.length() > keylength )
{
outFile << "Too many answers";
}
else
{
check = false;
}
for (int count = 0; count < key.length(); count++)
{
if( answers[count] == key[count] )
{
grade++;
}
else if (answers[count] != 'a' && answers[count] != 'b' && answers[count] != 'c' && answers[count] != 'd' && answers[count] != 'e' && answers[count] != 'f')
{
check = true;
}
if (check == true)
{
outFile << "Invalid Answer";
}
else
{
outFile << grade;
}
}
outFile << endl;
}
