[Insight-developers] itkImageConstIteratorWithIndex.h

[Mark Foskey]

OK, I will investigate.

Joshua Cates wrote:
> I agree.  This sounds like a bug to me.
> 
> Josh.
> 
> 
> On Wed, 23 Apr 2003, Miller, James V (Research) wrote:
> 
> 
>>I think your examples should both print 1.
>>
>>So if possible (without breaking existing code), I would change the code. A
>>call to IsAtBegin() should return true if it is called immediately after a
>>GoToBegin(). Same for "end" versions.
>>
>>
>>
>>
>>>-----Original Message-----
>>>From: Mark Foskey [mailto:mark_foskey@unc.edu]
>>>Sent: Wednesday, April 23, 2003 12:12 PM
>>>To: insight-developers@public.kitware.com
>>>Subject: [Insight-developers] itkImageConstIteratorWithIndex.h
>>>
>>>
>>>In itkImageConstIteratorWithIndex.h, both IsAtBegin() and IsAtEnd() 
>>>return !m_Remaining.  It appears that
>>>
>>>   it.GoToBegin();
>>>   std::cout << it.IsAtBegin() << std::endl;
>>>
>>>   it.GoToEnd();
>>>   std::cout << it.IsAtEnd() << std::endl;
>>>
>>>will both print 0.  Do we at least want to document this behavior?  I 
>>>can imagine scenarios where you might want to test whether an 
>>>iterator 
>>>has been incremented since GoToBegin() was called, although I think 
>>>they would be rare.
>>>
>>>-- 
>>>Mark Foskey    (919) 843-5436  Computer-Aided Diagnosis and 
>>>Display Lab
>>>mark_foskey@unc.edu            Department of Radiology, CB 7515, UNC
>>>http://www.cs.unc.edu/~foskey  Chapel Hill, NC  27599-7515
>>>
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>>>
>>
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> 
> 
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-- 
Mark Foskey    (919) 843-5436  Computer-Aided Diagnosis and Display Lab
mark_foskey@unc.edu            Department of Radiology, CB 7515, UNC
http://www.cs.unc.edu/~foskey  Chapel Hill, NC  27599-7515