[vtk-developers] Why is GetRange double* even for non double arrays?

[David Doria]

> Don't forget the other signature, which cannot you cannot override
> with a different type:
>
> double *GetRange();
>
> It's reasonable to provide a method such as the one that you ask for,
> but only if the method name is changed.  So vtkIntArray would have the
> following methods added:
>
> void GetValueRange(int range[2]);
> double *GetValueRange();
>
> Ditto for the other arrays.
>
>    David
>

I don't understand what you mean about the other signature?

So there could be something like this:

  void GetValueRange(int range[2])
  {
    double r[2];
    this->GetRange(r);
    range[0] = static_cast<int>(r[0]);
    range[1] = static_cast<int>(r[1]);
  }

But why would we have to also provide this:
double *GetValueRange();

?

It seems like this is just continuing the same problem of providing a
double* accessor to int data?

David