[Interest] reading from and writing to a file with QDataStream

[Sina Dogru]

> >  QByteArray bai;
> >  out2 << bai.size();
> >  out2 << bai;
> Here you wrote out an int and a QByteArray, so the file contains 4 bytes
> for the int "bai.size()" (value of 22), and then because of how QDataStream
> serializes QByteArrays, another 4 bytes for the size of the QByteArray
> (still a value of 22), plus the contents of the QByteArray itself. At this
> point, remember that the contents of the QByteArray are 4 bytes for the
> size of the QString (value of 18) plus the QString in UTF-16 format.


Sean,

Thank you for explaining how QDataStream works actually. Since I got more
instinct about the subject, I can see how I made my mistake and some
unnecessary approach. For example reading differently then writing out. And
writing out the bytearray size :S.

Cheers,
Sina
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