[Qt-interest] Convert a qreal to String

[Nuno Correia]

2009/6/18 Nuno Correia <npaulo.nuno at gmail.com>

> In Qt documentation
> ....
> typedef qreal
>
> Typedef for double on all platforms except for those using CPUs with
> ARM architectures. On ARM-based platforms, qreal is a typedef for
> float for performance reasons.
> ....
>
> 2009/6/18 Srdjan Todorovic <todorovic.s at googlemail.com>:
> > Hi,
> >
> > On 18/06/2009, Jesús Fernández Prieto <jsfdez at gmail.com> wrote:
> >> *QString strNumber;
> >>
> >> #if defined(__arm__)
> >> strNumber=QString::number(float(real));
> >> #else
> >> strNumber=QString::number(double(real));
> >> #endif
> >
> > Why the extra cast?
> > And why the Arm difference?
> >
> > Wouldn't the compiler for the Arm architecture already typedef double
> > to a float if it can't handle a double? Or can you use both but a
> > float is faster for that architecture?
> >
> > Srdjan
> >
> > _______________________________________________
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> > http://lists.trolltech.com/mailman/listinfo/qt-interest
> >
>
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