Re: [Boost-users] Fusion transform question

From: Joel FALCOU (joel.falcou_at_[hidden])
Date: 2008-07-19 16:51:11

Steven Watanabe a écrit :
> Strange as it may seem, fusion::transform is not
> the right tool in this case, mpl::transform is what you
> want.  fusion::transform is lazy.  It returns a transform_view.
> mpl::transform works because fusion sequences /are/ mpl
> sequences.  The default behavior of mpl::transform
> is to preserve the input sequence type.  i.e.  transforming
> an mpl::vector gives an mpl::vector, transforming an mpl::list
> gives an mpl::list, and transforming a fusion::vector gives
> a fusion::vector.
>
I just read the parts about the lazyness of fusion transformation. It 
indeed escpaed me for a few seconds.
So basically the fusion transform are more suited for the runtime aprt 
of the code rather than the compile-time one ?

-- 
Joel FALCOU
Research Engineer @ Institut d'Electronique Fondamentale
Université PARIS SUD XI
France