Re: [ublas] retrieving triangular_type and layout_type

From: Nico Galoppo (nico_at_[hidden])
Date: 2006-11-22 11:07:41

Gunter Winkler wrote:
> There is no triangular_traits type, but it should be possible to use something 
> like:
> 
> template< class T, class TRI, class L, class A >
> void foo(const triangular_matrix<T, TRI, L, A>& m)
> {
>   return bar(m, TRI());
> }

Thanks for the tip. OTOH, I wasn't talking about triangular_matrix in 
particular. Are you implying that one has to revert to writing function wrappers 
as above to infer the correct types? For example, is there a mechanism to get 
the layout_type (row_major/column_major) from a matrix<> ?

Personally, when I want to dispatch to specific specializations, I us the tags 
system (row_major_tag/column_major_tag), but some functions require the actual 
layout_type class to be passed as an argument.

--nico

-- 
nico galoppo von borries     |  address: 119 fidelity st., carrboro
comp. graphics phd. student  |           north carolina, 27510 USA
UNC, chapel hill             |  phone: [phone] (office)
                              |         [phone] (home)
                              |  email: nico at cs dot unc dot edu
                              |  homepage: http://www.ngaloppo.org