[Qt-interest] QDataStream backwards incompatibility introduced in 4.6

[Murphy, Sean M.]

> To read floats from files written with a QDataStream from an older Qt,
> you could either call stream.setVersion(11) or
> stream.setFloatingPointPrecision(QDataStream::SinglePrecision) before
> using the stream. 

Technically you should call stream.setVersion(QDataStream::Qt_4_5)
instead of 11.  It's easier to read, as well as it being forward
compatible.  In theory Nokia could change the values (although I'm
pretty sure they wouldn't).

Sean