c++ File IO, html conversion - html

Question

Here is a brief discription of the books programming project I am trying to do...
Write a program that reads in a C++ source file and converts all ‘<’ symbols to “<” and all ‘>’ symbols to “>” . Also add the tag <PRE> to the beginning of the file and </PRE> to the end of the file. This tag preserves whitespace and formatting in the HTML document. Your program should create a new file with the converted output. To implement this, you should write a function ‘convert’ that takes the input and output streams as parameters.
I am having issues trying to get the program to work correctly. What's happening is the program will create a new file with .html but it is not converting anything in the file. (i.e. adding <PRE> to the beginning and </PRE> to the end and converting all '<' symbols to &lt and '>' to &gt).
I've been messing with it for a while now and I'm honestly not sure where I am going wrong. I'm super new to programming in general and even more new to c++ so please be nice haha.
Here is my code, any help is greatly appreciated!!
Thanks!
Scott
#include <iostream>
#include <fstream>
#include <cstring>
#include <string>
#include <cstdlib>
using namespace std;
// main function
int main() {
// Input file to convert
string filename;
// Output file with .html on the end
string outputname;
char c;
int i;
ifstream inStream;
ofstream outStream;
cout << "Enter filename you woudl like to convert: " << endl;
cin >> filename;
// Open the input file
inStream.open(filename.c_str());
if (inStream.fail()) {
cout << "I/O failure opening file." << endl;
exit(1);
}
// Create the output file
outputname = filename + ".html";
outStream.open(outputname.c_str());
// First, output the <PRE> tag
outStream << "<PRE>" << endl;
// Loop through the input file intil nothing else to get
while (!inStream.eof()) {
inStream.get(c); // Get one character
// Output < or > or original char
if (c == '<') {
outStream << "<";
}
else if (c=='>') {
outStream << ">";
}
else outStream << c;
}
// Output end /PRE tag
outStream << "</PRE>" << endl;
inStream.close();
outStream.close();
cout << "Conversion done. Results are in file " << outputname << endl;
}