[vtkusers] vtkMath::IsNan?

[Moreland, Kenneth]

I notice that there is now a vtkMath::Nan() function, but there is no vtkMath::IsNan() function.  Is there an expected way to check to see if a value is a NAN?

-Ken

   ****      Kenneth Moreland
    ***      Sandia National Laboratories
***********
*** *** ***  email: kmorel at sandia.gov
**  ***  **  phone: (505) 844-8919
    ***      web:   http://www.cs.unm.edu/~kmorel

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