[vtk-developers] Guidance needed fixing problems doing 64bit compile on Mac OS X

[Sean McBride]

On 2006-10-26 11:38, Bill Hoffman said:

>> So, in general (not just for this one bad cast), my questions are:
>>
>> 1) Is it acceptable to change these ints to something bigger?
>> 2) If so, what type?  ptrdiff_t? void*?
>>
>> For this particular bad cast, I think we should switch from 'int' to a
>> pointer-sized type because even in vt
>> kWin32RenderWindowInteractor::InternalCreateTimer() it calls the Win32
>> API SetTimer() which expects a UINT_PTR not an INT.
>>   
>Strange:
>http://developer.apple.com/macosx/64bit.html
>Seems to imply that this is the same model used by other unix 64 bit 
>platforms.

It is.  I'm afraid I don't understand how that lead to your 'strange'
remark though...

>However, there are dashboards with win64 and IRIX64 that are working.
>Although the example you give is in Mac specific code, so I would say
>fix the mac specific code, and things should work.

I agree.  But fix the code how?  I am willing to submit a patch and test
it.  But I wanted to check with kitware et al on the preferred fix.  As
I said, one fix is to change that int to ptrdiff_t/void*.  But that fix
would touch all platforms, not just the Mac, and change the interface
(slightly) to vtkRenderWindowInteractor.  Still, I think it's probably
cleaner.

-- 
____________________________________________________________
Sean McBride, B. Eng                 sean at rogue-research.com
Rogue Research                        www.rogue-research.com 
Mac Software Developer              Montréal, Québec, Canada