[ITK-users] typename keyword

[David Doria]

On Wed, Jul 23, 2014 at 6:52 AM, med aweng <medswengineer at gmail.com> wrote:

> Hi,
>
> I know that this question may be a C++ more question, but thought of
> asking it here as I couldn't find a clear explanation of the issue.
>
> In the page here:
> https://github.com/ComplexSystemsModeling/DCMTK-ITK/blob/master/Modules/Numerics/Statistics/include/itkScalarImageToRunLengthMatrixFilter.h#L129
>
> I came about this statement:
>
>   typedef typename ImageType::OffsetType OffsetType;
>
> What does "typename" mean here? When do we use it?
>
> Thanks.
>
> http://en.wikipedia.org/wiki/Typename
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