On Tue, 26 Feb 2019 at 05:37, Jason H <jh...@gmx.com> wrote: > > > Sent: Friday, February 22, 2019 at 4:27 AM > > From: "Christian Gagneraud" <chg...@gmail.com> > > Would you consider making arm v8 the minimum requirement for Qt6? > > You might anger the raspberry pi people who still use ARM11 in the Pi Zero, > and other embedded users. I don't see 32bit arm cores going away any time > soon, particularly in embedded designs. It may be acceptable to cap these at > a Qt5 version. Since ARM v8 is only 7 years old (about the same age of Qt5), > I would hesitate to leave 32-bit arm out.
It was more a question than a suggestion. The rational is that qreal=float only make sense on low-end/old processors, so if ARMv8 is the minimum required, you can completely get rid of qreal. Our code base is built with qreal=float on ARM and qreal=double on x86 Linux/Windows. It's actually a pain if you enable certain -Wconversion. How to you assign a literal to a qreal? You cannot, there's no qreal literal, only float and double. This code: qreal a = 0.1f; qreal b = 0.1; Will cause a warning in both cases: qreal=double: implicit conversion of a increases floating-point precision qreal=float: implicit conversion of b looses floating-point precision Chris _______________________________________________ Interest mailing list Interest@qt-project.org https://lists.qt-project.org/listinfo/interest
