Re: [Boost-users] [mpl]pop_front function on integral sequence

From: Vít Kasal (vit.kasal_at_[hidden])
Date: 2007-06-19 05:04:31

> > Hi,
> >
> > I have a problem with using pop_front on an integral sequence.
> >
> > pop_front< vector_c<T, c1, c2, ... cn> >::type
> >
> > results in
> >
> > vector<c2, ... cn>
> >
> > Is it intended behavior? Is there some way to get
> >
> > vector_c<T, c2, ... cn> >
> >   
>
>
> I think vector_c is implemented as vector< mpl::int_<c2>, ... mpl::int_<cn> >. May be you should
> try using iterator_range which will result in a view to your initial vector and probably have a
> better compiler performance.
Thanks, iterator_range works fine. What's not very nice to me is the T
typename is lost for empty sequence and after using a metafunction,
 so vector_c is not really usable for metaprograming, its just a macro
to easier define a vector.

best regards
Vit