[vtk-developers] 64 Bit Integer Data Array

David Gobbi david.gobbi at gmail.com
Mon Feb 23 20:13:46 EST 2015

On Mon, Feb 23, 2015 at 5:56 PM, Sean McBride <sean at rogue-research.com>

> I guess vtk__Int64Array predates vtkTypeInt64Array?  Is there any reason
> to not deprecate it at this point?

I believe that they were both added to VTK at the same time.

On UNIX, vtkTypeInt64Array is a sublcass of vtkLongLongArray.
On Win32, vtkTypeInt64Array is (was?) a subclass of vtk__Int64Array.

Of course, this was due to the fact that "long long" was not a valid type
on many of the compilers that VTK supported, hence 64-bit arrays were
handled with __int64 or a 64-bit long wherever "long long" was unavailable.

 - David
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