Thread: a file problem !!

Ok well i got the function to work, the basic concept is the same there were just same design flaws in it... i don't like it at all though, it is way to long for a function and it is messy at hell but look at the bright side, it works

Code:

void copy ( ifstream& input_file , ofstream& output_file )
{
    char symbol = '\0';
    char Buffer = '\0';
	char Buffer2 = '\0';
    
    int sum, count;
	double average ;

	input_file.get(symbol);

  	while ( ! input_file.eof() )
  	{
		while ( ! isdigit(symbol) )
	
		{
			output_file.put(symbol);
			input_file.get(symbol);
		}
	
		sum=0;
		count=0;
	
		while(symbol != '\n' && !input_file.eof())
		{
			
			if( symbol == ' ' )
				count = count + 1;
				
			else if(isdigit(symbol))
			{
				input_file.get(Buffer);
				
				if(isdigit(Buffer))
				{
					if( symbol == '1' && Buffer == '0' )
					{
						input_file.get(Buffer2);

						if(Buffer2 == '0')
						{
							sum = sum + 100;
							output_file.put('1');
							output_file.put('0');
							output_file.put('0');
						}
						else
						{
							sum = sum + 10;
							output_file.put('1');
							output_file.put('0');
							count = count + 1;
						}
					}
					else
					{
						sum = sum + ( ( (int)symbol - 48 ) * 10 ) + ( (int)Buffer - 48 );
						output_file.put(symbol);
						output_file.put(Buffer);
					}

				}
				
				else
				{
					sum = sum + ( (int)symbol - 48 );
					count = count + 1;
					output_file.put(symbol);
				}

			}

			else
				break;

			output_file.put(' ');

			input_file.get(symbol);
		}
			
			
	
		 
		output_file<< "   (** sum= "<< sum << ", count: " << count ;
	
		output_file.setf(ios::fixed);
		output_file.setf(ios::showpoint);
		output_file.precision(2);
	
		average = (double)sum / (double)count ;
		output_file << ", average: "<< sum << " / " << count      << " = " << average << " **) ";
		output_file.put('\n');
		sum = 0;
		count = 0;
	}
		
}

a buffer is basically something that stores something temporarily. It is probably better if you rename those varibles to soemthing a bit more clear as in this program those two variables will only hold one possible value. If you have a lot of operations that require the saving of values in the middle of it, between the original input and the final result, it is general pratice to use a temp (or as i like to call em buffer) variables.