[Insight-developers] Empty FixedArray destructor: Performancehit using gcc (times 2)

[Luis Ibanez]

Hi Mathieu,

Thanks for pointing this out.

          "size_t" may be a candidate here.

http://msdn.microsoft.com/en-us/library/3b2e7499(VS.80).aspx

a second option may be "ptrdiff_t",


A modification has been committed by using size_t,
we will follow up on the Dashboard...


    Thanks,


       Luis

------------------------
Mathieu Coursolle wrote:
> Hi ITK Developers,
> 
> I just tried to build ITK in 64 bits (x86_64 and ppc64) and ran into 
> itkFixedArrayTest2 that was just added.
> 
> Part of the code goes like this:
> 
>   ArrayType * vec = new ArrayType[nelements+8];
> 
>   // Fill it up with zeros
>   memset(vec,0,(nelements+8)*sizeof(ArrayType));
> 
> 
>   // Display the alignment of the array
>   std::cout << "Initial alignment: " << (((int)vec)& 7) << "\n";
> 
> As I built 64 bits,  vec is a 64 bits pointer. Trying to cast it as an 
> int, which is 32 bits, cause a compiler error
> on my machine (intel mac). 
> 
> Is there some type like uintptr_t that could be use, which will be 32 
> bits when built as 32, and 64 bits when built as 64?
> 
> Thanks.
> 
> Mathieu