[Insight-developers] MRCImageIO & Visual Studio 6.0

[Bill Lorensen]

I have VS6. I'll give it a go later today,

Bill

On Mon, Jun 14, 2010 at 2:15 PM, Bradley Lowekamp
<blowekamp at mail.nih.gov> wrote:
> Bill,
> I have already committed a:
> http://public.kitware.com/cgi-bin/viewcvs.cgi/Code/Review/itkMRCImageIO.cxx?root=Insight&r1=1.1&r2=1.2
> but unfortunately we are still getting related errors ( different but
> related ):
> http://www.cdash.org/CDash/viewBuildError.php?buildid=635501
> It is likely the overloading of the method which is confusing the poor VS6
> compiler:
>
>   // internal methods to update the min and max in the header based on
>   // the data, in the image buffer to be written
>   template<typename TPixelType>
>     void UpdateHeaderWithMinMaxMean( const TPixelType * bufferBegin );
>   void UpdateHeaderWithMinMaxMean( const void *buffer );
> My suggestion would be to rename the second non-templated method. Perhaps I
> should let some one with the VS6 compiler check to see if this is a working
> solution instead of my prior shooting in the dark, which didn't solve the
> issue.
> Brad
>
>
> On Jun 14, 2010, at 2:08 PM, Bill Lorensen wrote:
>
> I think we have done a) in the past.
>
> On Mon, Jun 14, 2010 at 1:11 PM, Luis Ibanez <luis.ibanez at kitware.com>
> wrote:
>
> Hi Brad,
>
>
> Visual Studio 6.0 seems to be having trouble with
>
> the template instantiations from itkMRCImageIO:
>
> http://www.cdash.org/CDash/viewBuildError.php?buildid=635480
>
>
>
> :\Dashboards\My Tests\InsightContinuous\Code\Review\itkMRCImageIO.cxx(516) :
>
> error C2893: Failed to specialize function template 'void __thiscall
>
> itk::Local::MRCImageIO::UpdateHeaderWithMinMaxMean(const TPixelType *)'
>
>        With the following template arguments:
>
>        'unsigned char'
>
>
>
> I believe that VS6 can't resolve templated functions
>
> just based on the type of the function argument.
>
>
>
> Options to consider are:
>
>
> A)  instantiating it as:
>
>        f<T>( T arg )
>
> or
>
>
> B)  Making that function to be a
>
>    templated method member of a class.
>
>
> Do you have any preferences between these two options ?
>
> (or maybe other options...?)
>
>
>
>    Thanks
>
>
>       Luis
>
>
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> ========================================================
>
> Bradley Lowekamp
>
> Lockheed Martin Contractor for
>
> Office of High Performance Computing and Communications
>
> National Library of Medicine
>
> blowekamp at mail.nih.gov
>
>