[vtk-developers] vtkImageConvolve crashes when malloc fails

[Amy Squillacote]

Sean McBride wrote:
> On 6/3/08 3:51 PM, Amy Squillacote said:
>
>   
>> Additionally, I don't think malloc is guaranteed to return NULL when it 
>> fails to allocate memory (although in many implementations, that is what 
>> it does), so adding such checks into VTK wouldn't necessarily work 
>> everywhere.
>>     
>
> I'm pretty sure you are mistaken.  If malloc() is unable to fulfil a
> request, what would it return other than null?  A random value?  I've
> googled a bit and everything I've found says it always returns null on
> failure.
>
> Perhaps you are thinking of malloc(0)?  On some implementations this
> returns null and on others it returns a non-null pointer that is pretty
> much useless anyway.
>   

Actually, I think I was thinking of the "new" operator. See the 
following link: 
http://msdn.microsoft.com/en-us/library/kewsb8ba(VS.80).aspx.

- Amy

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Amy Squillacote                    Phone: (256) 726-4839
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