Problems writing to file

[newberrydc]

Okay, so I have written an exercise using a number of functions to learn array manipulation. I've got the exact output I need and want using cout statements but now I want to dump everything to a "results.dat" file, which I have already created and opened. When running the program, however, when I change a cout << into an outFile <<, I get 'outFile' was not declared in this scope. You can see what I'm shooting for in the OutputTen function where I have tried to dump my array to my file instead of the console. Any ideas? Here's my code:

#include <iostream>
#include <fstream>

using namespace std;

const int size = 100; // Size of array

// Prototypes
void OpenFiles(ifstream&, ofstream&);
void OutputTen(int[]);
double Average(int[]);
void LargerThanAverage(int[], double);
void OutputEvenPositions(int[]);
void EvenValues(int[]);
void InvertValues(int[]);
void ArraySwap(int[]);
void NumOfMultiples(int[]);
void LargestValue(int[]);
void SmallestValue(int[]);
void ZeroArray(int[]);


// Functions
void OpenFiles(ifstream& inFile, ofstream& outFile) // Opens array.dat and opens/creates results.dat
{
inFile.open("array.dat");
outFile.open("results.dat");
}

void OutputTen(int array[])
{
for(int i = 0; i < 10; i++)
{
for(int j = (i*10); j < (i*10)+10; j++)
{
if(array[j] != 0)
outFile << array[j] << " ";
}
cout << endl;
}
cout << endl << "-----------------------------------------------------" << endl << endl;
}

double Average(int array[])
{
double sum = 0;
double average = 0;
for (int i = 0; i < size; i++)
{
if (array[i] != 0)
sum = sum + array[i];
}
average = sum / (size - 1);
cout << "The average of the values is: " << average << endl;
cout << endl << "-----------------------------------------------------" << endl << endl;

return average;
}

void LargerThanAverage(int array[], double average)
{
int lessThanCount = 0;
int greaterThanCount = 0;
for (int i = 0; i < size - 1; i++)
{
if (array[i] > average)
greaterThanCount++;
if (array[i] < average)
lessThanCount++;
}
cout << greaterThanCount << " values are greater than the average." << endl;
cout << lessThanCount << " values are less than the average." << endl;

cout << endl << "-----------------------------------------------------" << endl << endl;
}

void OutputEvenPositions(int array[])
{
for(int i = 0; i < 5; i++)
{
for(int j = i*20; j<(i*20)+20; j++)
{
if(array[j] != 0)
cout << array[j] << " ";
j++;
}
cout << endl;
}
cout << endl << "-----------------------------------------------------" << endl << endl;
}

void EvenValues(int array[])
{
for (int i = 0; i < size; i++)
{
if (array[i] % 2 == 0)
cout << array[i] << " ";
}
cout << endl << endl << "-----------------------------------------------------" << endl << endl;
}

void InvertValues(int array[])
{
for (int i = 0; i < size; i++)
{
array[i] = -array[i];
}
}

void ArraySwap(int array[])
{
int temp[1];
temp[0] = array[0];
array[0] = array[2];
array[2] = temp[0];

for (int i = 0; i < size; i ++)
cout << array[i] << " ";
cout << endl << endl << "-----------------------------------------------------" << endl << endl;
}

void NumOfMultiples(int array[])
{
int counter = 0;
for (int i = 0; i < size; i++)
{
if (array[i] % 4 == 0 && array[i] %7 == 0)
counter++;
}
cout << "There are " << counter << " values that are multiples of both 4 and 7." << endl;
cout << endl << "-----------------------------------------------------" << endl << endl;
}

void LargestValue(int array[])
{
int largest = array[0];
int location = 0;
for (int i = 0; i < size; i++)
{
if (array[i] > largest)
{
largest = array[i];
location = i;
}
}

cout << largest << " is the largest value and it is located at position " << location << " in the array."<< endl;
cout << endl << "-----------------------------------------------------" << endl << endl;
}

void SmallestValue(int array[])
{
int smallest = array[0];
int location = 0;
for (int i = 0; i < size; i++)
{
if (array[i] < smallest)
{
smallest = array[i];
location = i;
}
}

cout << smallest << " is the smallest value and it is located at position " << location << " in the array."<< endl;
cout << endl << "-----------------------------------------------------" << endl << endl;
}

void ZeroArray(int array[])
{
for (int i = 0; i < size; i++)
{
if (array[i] % 2 == 0)
array[i] = 0;
cout << array[i] << " ";
}
cout << endl << endl << "-----------------------------------------------------" << endl << endl;
}


int main()
{
int array[size];
ifstream inFile;
ofstream outFile;
double average;

inFile.open("array.dat");
outFile.open("results.dat");

//OpenFiles(inFile, outFile);
if(!inFile || !outFile)
{
cout << "Error opening files " << endl;
return 1;
}

for(int i = 0; i < size; i++)
{
inFile >> array[i];
}

cout << "Problem 1:" << endl << endl << "*** Read values into the array ***" << endl;
cout << endl << "-----------------------------------------------------" << endl << endl;
cout << "Problem 2:" << endl << endl;
OutputTen(array);
cout << "Problem 3:" << endl << endl;
average = Average(array);
cout << "Problem 4:" << endl << endl;
LargerThanAverage(array, average);
cout << "Problem 5:" << endl << endl;
OutputEvenPositions(array);
cout << "Problem 6:" << endl << endl;
EvenValues(array);
cout << "Problem 7:" << endl << endl << "*** Inverted the values in the array ***" << endl;
InvertValues(array);
cout << endl << "-----------------------------------------------------" << endl << endl;
cout << "Problem 8:" << endl << endl;
average = Average(array);
cout << "Problem 9:" << endl << endl;
ArraySwap(array);
cout << "Problem 10:" << endl << endl;
NumOfMultiples(array);
cout << "Problem 11:" << endl << endl;
LargestValue(array);
cout << "Problem 12:" << endl << endl;
SmallestValue(array);
cout << "Problem 13:" << endl << endl;
ZeroArray(array);
cout << "Problem 14:" << endl << endl;
average = Average(array);

inFile.close();
outFile.close();

return 0;
}

[Browni3141]

You have to pass the file pointer to every function you use it in.

[newberrydc]

Okay...I fixed it by moving my ifstream and ofstream declarations outside of my main method.