Re: [ublas] syev error

Subject: Re: [ublas] syev error
From: Rutger ter Borg (rutger_at_[hidden])
Date: 2010-11-15 04:03:49

On 11/15/2010 12:03 AM, Nizar Khalifa Sallem wrote:
> Hi all,
>
> I am trying to migrate from the bindings_v1 to the 'official' bindings
> but I am encountering some errors:
> the former call to syev is :
>      int syev (char jobz, A&  a, W&  w)
> the later is this one :
> inline typename boost::disable_if<  detail::is_workspace<  VectorW>,
>          std::ptrdiff_t>::type
> syev( const char jobz, MatrixA&  a, VectorW&  w )
>
> Here is my code:
> lapack::syev('V',A,alpha);
> with A a column major matrix and alpha a ublas::vector
>
> And here is corresponding gcc answer:
> boost/numeric/bindings/detail/property_map.hpp:30: error: no type
> named ‘property_map’ in ‘struct
> boost::numeric::bindings::detail::adaptor_access<boost::numeric::ublas::matrix<double,
> boost::numeric::ublas::basic_column_major<unsigned int, int>,
> boost::numeric::ublas::unbounded_array<double, std::allocator<double>
>>> , void>’
>
> --
> Nizar

I guess it's time for a FAQ. :-)

Q: "This doesn't compile, the compiler is complaining about no type 
named 'property map'"
A: You probably didn't include the binding for each of the containers 
you are passing to the algorithm. Add, e.g., #include 
<boost/numeric/bindings/ublas/vector.hpp>, to your code.

Cheers,

Rutger