[Insight-developers] itk::Array operator= missing?

[Julien Jomier]

Hi Lydia,

You are perfectly right.
As fas as I remember, Borland compiler was unhappy with the overloading of
the operator = .
I just tried to overload the operator = but it doesn't seem to work, i.e it
never runs the overloaded function in itkArray. One more thing I don't
understand is why the copy operator is not calling the default constructor
in itkArray? Is it using another constructor that we need to override?

Do you think we can fix the problem by inverting the behavior of
m_LetArrayManageMemory and setting it to false by default instead of true?

Let me know if I can do anything to help with this,

Julien

> -----Original Message-----
> From: insight-developers-bounces at itk.org 
> [mailto:insight-developers-bounces at itk.org] On Behalf Of Lydia Ng
> Sent: Friday, May 28, 2004 1:17 AM
> To: insight-developers at itk.org
> Subject: [Insight-developers] itk::Array operator= missing?
> 
> 
> 
> I finally worked out the cause of the memory leak in the
> itkShapePriorMAPCostFunctionTest. I believe is due to the
> Array::m_LetArrayManageMemory not being set properly.
> 
> This is illustrated in the following code:
> 
> ------------------------------
> #include "itkArray.h"
> 
> int main()
> {
> 
>   typedef itk::Array<float> ArrayType;
> 
>   //
>   // Create an itk::Array which manages its own memory
>   //
>   ArrayType myOwnBoss;
>   myOwnBoss.SetSize( 5 );
>   myOwnBoss.Fill( 2.0 );
> 
>   //
>   // Create an itk::Array which does not manage its own memory
>   //
>   float buffer[7];
>   ArrayType notMyOwnBoss;
>   notMyOwnBoss.SetSize( 7 );
>   notMyOwnBoss.SetData( buffer, false );
>   notMyOwnBoss.Fill( 4.0 );
> 
>   //
>   // Copy an itk::Array which manages its own 
>   //
>   ArrayType test1 = myOwnBoss;
> 
>   //
>   // Copy an itk::Array which does not manage its own memory
>   // After copying test2.m_LetArrayManageMemory is set to
>   // zero even though it has created its own memory - thus
>   // causing a memory leak.
>   //
>   ArrayType test2 = notMyOwnBoss;
> 
>   return 0;
> }
> ----------------------------
> 
> >From the cvs log of itkArray.h it looks like operator= for 
> itk::Array was
> added then deleted due to issues with bcc - does anyone know why?
> 
> - Lydia
> _______________________________________________
> Insight-developers mailing list
> Insight-developers at itk.org
> http://www.itk.org/mailman/listinfo/insight-developers
>