New shared pointer - revision 2

[Frerich Raabe]

Hi,

based on your feedback, I modificated the previously presented shared pointer 
a little:

- All functions are documented now. In particular, get() got a warning which 
explains that the reference counting is circumvented, so you better be 
careful.
- Inspired by a comment from Adriaan, I added a 'detach()' function which 
detaches a pointer. 'p.detach();' is simply nicer than 'p = p.copy();'
- As requested by Thiago. Instead of an int, QAtomic is used as the type for 
the reference count. Pointer assignments are done via qAtomicSetPtr. This 
hopefully improves thread-safety.

I also added a little testcase which exercises all functions a little bit and 
checks whether certain assertions still hold.

- Frerich
-------------- next part --------------
A non-text attachment was scrubbed...
Name: ksharedptr.h
Type: text/x-c++hdr
Size: 6467 bytes
Desc: not available
URL: <http://mail.kde.org/pipermail/kde-core-devel/attachments/20050910/c88ead09/attachment.h>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: ksharedptrtest.cc
Type: text/x-c++src
Size: 737 bytes
Desc: not available
URL: <http://mail.kde.org/pipermail/kde-core-devel/attachments/20050910/c88ead09/attachment.cc>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
URL: <http://mail.kde.org/pipermail/kde-core-devel/attachments/20050910/c88ead09/attachment.sig>