[vtkusers] Question about 64-bit ids and long

[Mathieu Malaterre]

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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-- 
Mathieu