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Ublas : |
From: Karl Meerbergen (karl.meerbergen_at_[hidden])
Date: 2007-07-24 05:14:23
Dear all,
I no longer have write-access to the boost-sandbox bindings. I mentioned
this to the boost-sandbox admin, but never got an answer. This means
that the recent changes related to the discussions of the last months
cannot be committed. I keep on trying getting write access. Sorry about
that.
Karl
nate wrote:
> I have a question about the following code sample:
>
> #include <boost/numeric/bindings/blas2.hpp>
> #include <boost/numeric/bindings/traits/ublas_matrix.hpp>
> #include <boost/numeric/bindings/traits/ublas_vector.hpp>
>
> ublas::vector<double> p,m;
> ublas::matrix<double, ublas::column_major> B;
>
> void main(){
>
> // this compiles
> blas::gemv('T',1.0, project(B,ublas::range(0,M),ublas::range(0,N)),
> m,1.0,p);
>
> // this doesn't
> blas::gemv('T',1.0, project(B,ublas::slice(0,1,M),ublas::slice(0,1,N)),
> m,1.0,p);
>
> }
>
>
> Can someone explain this behavior? The compiler (gcc4.0.1) gives:
>
> traits/ublas_matrix.hpp:215: error: no matching function for call to
>
> '...::matrix_detail_traits<matrix... >::storage(const
> matrix_reference<...>&)'
>
> candidates are:
>
> static typename generate_const<M, T>::type* matrix_detail_traits<... matrix<T,
> L, A>, M>::storage
> (M&)
>
> [with
> T = double,
> F = boost::numeric::ublas::basic_column_major<long unsigned int, int>,
> ArrT = boost::numeric::ublas::unbounded_array<double,
> std::allocator<double> >,
> M = boost::numeric::ublas::matrix<...>
> ]
>
> I'm not really sure where this error originates.
>
> Thanks
> James
>
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