Re: [boost] [Iterator] Adaptors for accessing keys/values in associative containers

From: François Duranleau (duranlef_at_[hidden])
Date: 2007-08-09 18:46:14

On Thu, 9 Aug 2007, François Duranleau wrote:

> On Thu, 9 Aug 2007, Giovanni Piero Deretta wrote:
>
>> On 8/9/07, Joseph Gauterin <joseph.gauterin_at_[hidden]> wrote:
>>> Would anyone be interested in having a couple of extra specialized
>>> iterator adaptors in  Boost.Iterator?
>>> 
>>> I'm thinking of 'key_iterator' and 'value_iterator' adaptors (along
>>> with convenience 'make_key_iterator' and 'make_value_iterator'
>>> functions) that allow any associative container (that follows standard
>>> library idioms) to be accessed as either a range of keys or as a range
>>> of values.
>
> Yes, I always forget about that one. To generalize, we could use a functor 
> wrapping boost::get<> (and/or tr1::get<>) (how to call it, 'getter'?).

Sorry for the extra noise, it seems I edited this post to quickly and I 
didn't notice I cut the wrong part. This was meant as a reply to Giovanni 
Piero Deretta's post about transform_iterator. Sorry again.

-- 
François Duranleau
LIGUM, Université de Montréal