[Insight-developers] itkNeighborhood and leaks

[Joshua Cates]

Hi,

The only MLK I see associated with itkNeighborhood is 96 bytes in
itkDiscreteGaussianImageFilterTest.  Are there other places that I am
overlooking?  Oddly, this leak does not appear in the Irix run.

Josh.

_____________________________
 Josh Cates			
 School of Computer Science	
 University of Utah
 Email: cates@cs.utah.edu
 Phone: (801) 587-7697
 URL:   www.cs.utk.edu/~cates


On Thu, 26 Jul 2001, Bill Hoffman wrote:

> Hi all,
> 
> In looking at the purify errors, I noticed that some itkNeighborhood sub classes were being 
> leaked in several places.   Is there some reason why this class can not inherit from
> itkLightObject? If it did, it would be able to use the SmartPointer and not leak.
>  I don't think that any of the classes in itk should use "new", they should all use
> class::New, there are several exceptions to this, but those exceptions are for classes 
> that need to be very small, and passed around by value or on the stack, 
> (in that case "new" would not be used.)
> 
> As a rule for itk, no class should be using "new" or have a public constructor unless it is
> to be used on the stack or as part of an array.
> 
> 
> 
> Here are the remaining tests that have leaks:
> itkDeformableTest
> itkDiscreteGaussianImageFilterTest
> itkExceptionObjectTest 
> itkGibbsTest
> itkMRFLabellerTest
> itkSplineKernelTransformTest
> itkSupervisedClassifierTest
> itkVectorFuzzyConnectednessImageFilterTest
> itkVoronoiSegmentationImageFilterTest
> itkVoronoi2DDiagramTest
> 
> Interestingly, if you grep in the source code for "new " *.txx *.cxx, most of the classes that
> use "new" are the ones that are leaking memory.
> 
> -Bill
> 
> 
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