Suppose I have atext file with a large number of lines.
Every lines can be of different size.
I have to read only that line wich meet some rules.
If the line is at the end of the file, I must scan all the line, the operation is slow.
But suppose that I know the position of the line I have to read, e.g. the 500th.
Therse is a way with QTextStream or somethinglike to read a particular line of a text file
without scanning all the file?
Regards