[vtkusers] Unhandled exception at the time of Unregistering vtkSmartPointer

[Jochen K.]

Hi Ahmad,

here is an example which is trying to show what happens using a
vtkSmartPointer. Notes are in the comments.


#include <vtkSmartPointer.h>
#include <vtkDoubleArray.h>

#define PI 3.14159
   
   void myConsumerFunction(vtkDoubleArray* doubleArray) {
      // use your doubleArray or change it
      // but don't use malloc or free on the array!
   }


   void myProducerFunction() {
      const int numberOfValues = 360;
      vtkSmartPointer<vtkDoubleArray> myDoubleArray =
vtkSmartPointer<vtkDoubleArray>::New();
      myDoubleArray->SetNumberOfComponents(1);
      myDoubleArray->SetNumberOfTuples(numberOfValues);
      // fill array
      for(int i = 0; i < numberOfValues; i++)
         myDoubleArray->SetTuple1(i, sin(i/180.*PI));
      myConsumerFunction(myDoubleArray);
   }



   int main(int, char*[])
   {
      myProducerFunction();
      // immediately after myProducerFunction() has returned
      // myDoubleArray is out of scope and is being deleted automatically.
      // There's no need to delete myDoubleArray explicitely anymore
      //...
      // more function calls
      // ...
      return EXIT_SUCCESS;
   }

with kind regards

Jochen


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