AW: [eigen] WG: Problem with compiling sparse matrix solver

[Zofka, Marc René <marc.broghammer@xxxxxxxxxxxxxxx>]

Hi Gael,

first of all thanks for your answer. 
I am using the latest stable Eigen Version 3.0.5.  But I am sorry, I do not understand your second issue. 
The problem is, that I am working on a multi-developer project and 
I do not use boost for my own codes (although there could be some
dependencies).  So what do you mean with "a using namespace 
boost::..."?

So it should be working, if am using the coming soon 3.1? Because the code snippet
seems to be correct in syntax and semantics.

With best regards,

Marc


 

-----Ursprüngliche Nachricht-----
Von: Gael Guennebaud [mailto:gael.guennebaud@xxxxxxxxx] 
Gesendet: Samstag, 23. Juni 2012 21:24
An: eigen@xxxxxxxxxxxxxxxxxxx
Betreff: Re: [eigen] WG: Problem with compiling sparse matrix solver

Hi,

this looks like a name clash with boost. What's your Eigen version?
The reported line numbers does not match with the 3.1 version.

Also, don't you have a using namespace boost::accumulators::extract??

cheers,
gael

On Fri, Jun 22, 2012 at 8:18 PM, Zofka, Marc René <marc.broghammer@xxxxxxxxxxxxxxx> wrote:
> Hi Guys,
>
> ive got a problem compiling the following source with MS VS Compiler:
>
> ----------------------------------------------------------------------
> ------------- Eigen::SparseMatrix<float> sparse = l; // l is 
> DynamicSparseMatrix
>
> Eigen::SparseLDLT<Eigen::SparseMatrix<float > > ldlt; 
> ldlt.compute(sparse); Eigen::VectorXf that = ldlt.solve(t);
> ----------------------------------------------------------------------
> ------------------
>
> I get the error:
>
> 2>...\externallibs\eigen\eigen\src\geometry\alignedbox.h(114): error 
> 2>C2872: 'min' : ambiguous symbol
> 2>          could be 'min'
> 2>          or       'c:\includes\boost\boost\accumulators\statistics\min.hpp(76) : const boost::accumulators::extractor<Feature> boost::accumulators::extract::min'
> 2>          with
> 2>          [
> 2>              Feature=boost::accumulators::tag::min
> 2>          ]
> 2>          or       'min'
> 2>          
> 2>...\externallibs\eigen\eigen\src\geometry\alignedbox.h(304)
> 2>: see reference to class template instantiation 
> 2>'Eigen::AlignedBox<_Scalar,_AmbientDim>' being compiled
> 2>...\externallibs\eigen\eigen\src\geometry\alignedbox.h(118): error 
> 2>C2872: 'max' : ambiguous symbol
> 2>          could be 'max'
> 2>          or       'c:\includes\boost\boost\accumulators\statistics\max.hpp(76) : const boost::accumulators::extractor<Feature> boost::accumulators::extract::max'
> 2>          with
> 2>          [
> 2>              Feature=boost::accumulators::tag::max
> 2>          ]
> 2>          or       'max'
>
>
> It seems to be a API internal error, isnt it?
>
> With best regards,
>
> Marc
>
>