[boost] Re: iterator_adaptor: underlying iterator type?

From: David Abrahams (dave_at_[hidden])
Date: 2005-05-20 06:06:15

Aleksey Gurtovoy <agurtovoy_at_[hidden]> writes:

> Currently 'iterator_adaptor' exposes its underlying iterator _object_
> (through 'base()'), but not its type, which stands in the way of a
> generic code manipilating adapted iterators/sequences, e.g.:
>
>     template<
>           typename Sequence
>         >
>     mtn::iterator_range< typename Sequence::iterator::base_type >
>                                                 //  ^^^^^^^^^^^ 
>                                                 // currently unavailable
>     base_view( Sequence& seq )
>         {
>         return mtn::make_iterator_range(
>               seq.begin().base()
>             , seq.end().base()
>             );
>         }
>
> Any objections if I add the typedef (and update the docs
> correspondingly)?

None.

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com