[vtkusers] Question about 64-bit ids and long

[Amy Squillacote]

I think Nick was referring to the code in vtkType.h; that's where the 
code for vtkIdType is now, and the line numbers match what he listed 
below. The problem still exists, it just isn't in vtkIdType.h.

- Amy

Mathieu Malaterre wrote:
> vtkIdType.h was last shipped with VTK 4.2:
>
> http://public.kitware.com/cgi-bin/viewcvs.cgi/Common/vtkIdType.h?hideattic=0&view=log
>
> 2cts
> -Mathieu
>
> On Sat, Sep 20, 2008 at 6:09 PM, Nick Gnedin <gnedin at fnal.gov> wrote:
>   
>> I noticed that in vtkIdType.h (VTK 5.2.0) a choice of long as a 64-bit
>> id is manually blocked ( && 0 at the end of line 00235). Does anyone
>> know why? I see nothing wrong with using long as a vtkIdType on a
>> 64-bit machine. In fact, vtkIdType should always be long - then the id
>> type is always consistent with the address space of the hardware.
>>
>> Nick Gnedin
>>
>>
>> vtkIdType.h:
>> 00233 #define VTK_HAS_ID_TYPE
>> 00234 #ifdef VTK_USE_64BIT_IDS
>> 00235 # if defined(VTK_SIZEOF_LONG) && VTK_SIZEOF_LONG == 8 && 0
>> 00236 typedef long vtkIdType;
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>>     
>
>
>
>   

-- 
Amy Squillacote                    Phone: (256) 726-4839
Computer Scientist                 Fax: (256) 726-4806
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