Re: [boost] [fusion] Support for classic boost::tuple

From: Joel de Guzman (joel_at_[hidden])
Date: 2006-09-26 21:18:09

David Abrahams wrote:
> Joel de Guzman <joel_at_[hidden]> writes:
> 
>> Hi,
>>
>> Ok, as promised. Support for classic boost::tuple has been added.
>> Now yer ole boost tuples are full fusion citizens. Now boost::tuple
>> can do for_each, transform, fold, find, assign/convert to other
>> fusion sequences, etc.
>>
>> Now there are 3 adapted sequences:
>> 1) std::pair
> 
> This one is going to cause me issues.  I'm writing a unified library
> to operate on static and dynamic sequences.  Here's the
> issue:  is 
> 
>    pair<int*,int*>
> 
> a dynamic sequence that goes from the first pointer to the 2nd (as in
> Boost.Range), or a static sequence with 2 elements (a la Fusion)?

Both? I think, in as much as boost::array<int> is a dynamic
sequence that STL algorithms can operate on, and at the same
time, is also a static sequence fusion algorithms can handle,
the same should be true for mono-sequences like pair<int*,int*>.

Regards,
-- 
Joel de Guzman
http://www.boost-consulting.com
http://spirit.sf.net