Help understanding (new)

Let me start by saying thanks for any help at all. the problem i am having is understanding using a function how to call a function to gather data from a file, have the file accept the good data and put the bad data in error file. The catch is we have to use a void function using ampersand. This is what i got so far but kind of hit a wall. Any help would be great, i am trying to hard to learn and understand what is taking place.

Code:

void getData(string name, int& num, int& infeet, double& incost, int& exfeet, double& excost, ifstream& inFile, ofstream& outFile, ofstream& errorFile, int& baddata);
void calculation(int infeet, double incost, double& totalint, int exfeet, double excost, double totalext, double& total, ifstream& inFile, ofstream& errorFile);


int main(){

//opening input, output and error files
ofstream outFile ("outfile.txt");
ofstream errorFile ("errorFile.txt");
ifstream inFile ("lab6.txt");

string name;
double incost, excost, intcost, extcost, total=0;
double interiorCost, exteriorCost, totalint, totalext;
int num, infeet, exfeet, linecount=0,
 baddata=false;

int main(){

//opening input, output and error files
ofstream outFile ("outfile.txt");
ofstream errorFile ("errorFile.txt");
ifstream inFile ("lab6.txt");

string name;
double incost, excost, intcost, extcost, total=0;
double interiorCost, exteriorCost, totalint, totalext;
int num, infeet, exfeet, linecount=0, baddata=false;

//Error message
if (!outFile){
cout << "Cannot open file, terminating the program. ";
return 0;
}
if (!errorFile){
cout << "Cannot open file, terminating the program.";
return 0;
}
if (!inFile){
cout << "Cannot open file, terminating the program.";
return 0;
}
//loop eof
while (!inFile.eof()){
//read data
getData(name, num, infeet, incost, exfeet, excost, inFile, outFile, errorFile, baddata);
if(!baddata)   <-------( i am stuck here and wondering if i have the right approach)

this is the data we are using:
Data Fil
ABC 1234 400 3.50 850 5.50
DEF 1345 100 5.25 200 2.75
GHI 2346 200 10.00 0 0.0
JKL 4567 375 4.00 50 4.00
MNO 5463 200 -5.0 150 3.00
PQR 679 0 0.0 100 3.50
STU 6879 100 0.0 -100 0.0
VWX 7348 0 0.0 750 0.0
XYZ 9012 -24 5.00 -50 5.00

 

That looks interesting. but I can't find the issue.