[Kde-bindings] Moving the Qyoto C# bindings from playground to kdebindings

[Arno Rehn]

Am Mittwoch, 11. April 2007 schrieb Richard Dale:
> On Wednesday 11 April 2007, Richard Dale wrote:
> > On Wednesday 11 April 2007, Arno Rehn wrote:
> > > I found out about a little bug in the GetHashCode() stuff of the Qyoto
> > > classes. When you call the method of certain classes, e.g. QTextBlock,
> > > the whole app segfaults with no further output. I would just return the
> > > real pointer to the underlying C++ object, this would always be unique
> > > and would work, wouldn't it?
> >
> > Yes, that's exactly what I was intending it to do. But I was wondering
> > about 64 bit pointers though, if the hash is an int.
>
> Just been looking in the Qt libs, and there's a qHash() function in the
> QHash class that takes a ulong and returns a uint:
>
> inline uint qHash(ulong key)
> {
>     if (sizeof(ulong) > sizeof(uint)) {
>         return uint((key >> (8 * sizeof(uint) - 1)) ^ key);
>     } else {
>         return uint(key);
>     }
> }
>
> So maybe calling that on the C++ pointer would be good enough.
Yes, that looks good.

-- 
Arno Rehn
arno at arnorehn.de