Wolf CCMLG 0 Newbie Poster

I am having a difficult time with a BitStream class. I need to overload the extraction and insertion operator for the classes, but I am at a loss. Here is what I have so far. Any guidance is appreciated.

#ifndef BITSTREAM_H_
#define BITSTREAM_H_
#include <iostream>
#include <fstream>
#include <vector>

class BitOStream
{
	ofstream myfile;
	char* Buffer;
	int numOfBytes;

public:
	BitOStream(const char* filePath, const char* headerChunk = NULL, int numberOfBytes = 0);
	~BitOStream();
	BitOStream& operator<<(vector<int> &bits);
	void close();
};



class BitIStream
{
	ifstream myfile;
	char* Buffer;
	int numOfBytes;

public:
	BitIStream(const char* filePath, char* headerChunk = NULL, int numberOfBytes = 0);
	~BitIStream();
	BitIStream& operator>>(int &bit);
	bool eof();
	void close();
};

/////////////////////////////////////////////////////////////////////////////////
//Function: constructor							   //
// Parameters : filePath - the path of the file to open for output         //
//		headerChunk - a chunk of data to be written at the         // 
//		   beginning of the file                                   //
//		numberOfBytes - the number of bytes of header information  //
//		   to write out                                            //
/////////////////////////////////////////////////////////////////////////////////
BitOStream::BitOStream(const char* filePath, const char* headerChunk, int numberOfBytes)
{
	numOfBytes = numberOfBytes;

	myfile.open(filePath, ios_base::out | ios_base::app | ios_base::binary);
	if (!myfile.is_open())
	{
		cout << "ERROR! Cannot locate file: " << filePath << "\n\n";
		system("pause");
		return;
	}
	if(headerChunk)
	{
		if(myfile.good())
			myfile.write(headerChunk, numOfBytes);
	}
	else
	{
		if(myfile.good())
			myfile.write(Buffer, numOfBytes);
	}
}

///////////////////////////////////////////////////////////////////////////////
// Function : destructor
///////////////////////////////////////////////////////////////////////////////	
BitOStream::~BitOStream()
{
	close();
}

///////////////////////////////////////////////////////////////////////////////
// Function : insertion operator
// Parameters : bits - a vector containing some number of 1's and 0's to 
//						stream out to the file
// Return : BitOStream& - the stream (allows for daisy-chaining insertions)
///////////////////////////////////////////////////////////////////////////////
BitOStream& BitOStream::operator<<(vector<int> &bits)
{
	for(unsigned int i = numOfBytes; i < bits.size(); ++i)
	{
		Buffer |= bits[i] << (i-numOfBytes);
	}

	// Write bits out to the file
	if(myfile.good())
		myfile.write(Buffer, numOfBytes);

	return *this;
}

///////////////////////////////////////////////////////////////////////////////
// Function : close
// Notes : closes the file stream - if remaining bits exist, they are written
//			to the file with trailing 0's. if no remaining bits exist, 
//			simply close the file
///////////////////////////////////////////////////////////////////////////////
void BitOStream::close()
{
	// if bits remain in the buffer, write them out to the file
	if(Buffer)
	{
		if(myfile.good() && myfile.is_open())
			myfile.write(Buffer, this->numOfBytes);
	}
	myfile.close();
}










///////////////////////////////////////////////////////////////////////////////
// Function : constructor
// Parameters : 	filePath - the path of the file to open for input
//			headerChunk - a chunk of data to be read from the 
//					beginning of the file
//			numberOfBytes - the number of bytes of header information 
//					to read in
///////////////////////////////////////////////////////////////////////////////
BitIStream::BitIStream(const char* filePath, char* headerChunk, int numberOfBytes)
{
	ifstream myfile;
	myfile.open (filePath, ios::in | ios::app| ios::binary);
	if (!myfile.is_open())
	{
		cout << "ERROR! Cannot locate file: " << filePath << "\n\n";
		system("pause");
		return;
	}
	if(headerChunk)
	{
		if(myfile.good())
			myfile.open(filePath, ios_base::out | ios_base::app | ios_base::binary);
		if(myfile.is_open())
		{
			myfile.read(headerChunk, numberOfBytes);
		}
	}
	else
	{
		if(myfile.good())
			myfile.open(filePath, ios_base::out | ios_base::app | ios_base::binary);
		if(myfile.is_open())
		{
			myfile.read(Buffer, numberOfBytes);
		}
	}
}

///////////////////////////////////////////////////////////////////////////////
// Function : destructor
///////////////////////////////////////////////////////////////////////////////
BitIStream::~BitIStream()
{
	close();
}

///////////////////////////////////////////////////////////////////////////////
// Function : extraction operator
// Parameters : bit - store the next bit here
// Return : BitIStream& - the stream (allows for daisy-chaining extractions)
///////////////////////////////////////////////////////////////////////////////
BitIStream& BitIStream::operator>>(int &bit)
{
	Buffer[bit];

	return *this;
}

///////////////////////////////////////////////////////////////////////////////
// Function : eof
// Return : true if we are at the end of the file, false otherwise
// Notes : should only return true when we have given the user every byte from
//			the file and every bit from the buffer
///////////////////////////////////////////////////////////////////////////////
bool BitIStream::eof()
{
	if (!myfile.eof())
		return false;
	else
		return true;
}

///////////////////////////////////////////////////////////////////////////////
// Function : close
// Notes : close the file
///////////////////////////////////////////////////////////////////////////////
void BitIStream::close()
{
	myfile.close();	
}
#endif