#include <iostream>
#include <fstream>
 
using namespace std;
 
void PrintError(fstream&, char, bool&);
int Conversion(fstream&, char&, bool&);
 
int main()
{
	fstream InFile;
	char Bit;
	int Decimal;
	bool BadBit = false;
 
	//Open file to read
	InFile.open("f:\\Binary.txt",ios::in);
 
	//Read the first bit of the number
	InFile.get(Bit);
 
	//continue reading all numbers till the end of file
	while (!InFile.eof())
	{
		//call Conversion to convert binary to decimal
		Decimal = Conversion(InFile, Bit, BadBit);
 
		//check if there is error
		if (BadBit)
		{
			//Print out error message 
			PrintError(InFile, Bit, BadBit);
		}
		else
			//output the equivalent value of decimal
			cout<<" = " <<Decimal<<endl;
 
		//read the next number
		InFile.get(Bit);		
	}
 
	InFile.close();
 
	return 0;
}
 
int Conversion(fstream& In, char& InBit, bool& Error)
/* Pre:  The stream is open for input.
         InBit is 1 or 0.
		 Error indicates the InBit is not One or Zero.
   Post: return the conversion of binary to decimal.
         Resets Error to true when encounter error.
*/
{
 
}
 
 
void PrintError(fstream& In, char BadOne, bool& Error)
/* Pre:  The stream is open for input.
         BadOne is bad digit.
		 Error indicates the BadOne is bad digit.
   Post: Prints error message.
         Resets Error to false means there is no error.
*/
 
{
 
}