Thread: Delete a line in a file

Hi,

I'm trying to delete a line in a file, but I'm not succeeding very well... Here is my function:

Code:

void deleteLine( int id )
{
	string contents;
	int i = 1;
	
	ifstream file ( "file.txt" );
	
	while ( file.good() )
	{
		if ( i != id )
		{
			contents = sprintf("%s%s", contents, file.getline() );
		}
		i++;
	}
	
	file.close();
	
	ofstream file ( "file.txt" );
	
	file << contents;
	
	file.close();
}

I get an error on contents = sprintf... Do you see any directly errors or shell I show my error messages too?

Yours, @nders.