[vtkusers] Why I can't create a global vtkPolyData instance?

[David Doria]

On Mon, Apr 30, 2012 at 9:42 AM, Wenlong Wang <scc.wwl at gmail.com> wrote:

> It is a regular console application. It goes like
>
> #include <vtkxxx.h>
> //.............
> //---------- Include headers -----------------
>
> vtkPolyData* polydata = vtkPolyData::New();    // here pops the error
> //............
>
> void main()
> {
>      //.........................................
> }
>


New() is a function. You can't call a function outside of a scope like you
have done there in c++. For example, this doesn't compile either:

void MyFunction() {}

MyFunction(); // You can't do this

int main()
{
  return 0;
}

My compiler says "error: expected constructor, destructor, or type
conversion before ‘;’ token" - I would expect yours says something more
than "access conflict" as well.

David
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