Re: [Boost-users] Fusion transform question

From: Joel de Guzman (joel_at_[hidden])
Date: 2008-07-21 03:19:39

Joel de Guzman wrote:
> John C. Femiani wrote:
>> Joel de Guzman wrote:
>>> John C. Femiani wrote:
>> <snip>
>>>> I think it is also confusing that fusion sequences are mpl sequences 
>>>> IF you include 'fusion/mpl.hpp', but not if you include 
>>>> 'fusion/adapted/mpl.hpp'.  I would like to see that in the docs 
>>>> please (it took me some time to figure out).
>>>
>>> Will do. Just out of curiosity, how did you figure it out? Which
>>> section in the docs did you look into first? Thanks!
>> I'll answer in reverse order.
>>>
>>> Which section in the docs did you look into first? 
>> First, I wanted the types in a fusion sequence as an mpl sequence. I 
>> googled, and found the introduction of the Fusion library, (which I 
>> had read before) :
>>
> [snip long story]
>>
>> to the header for FusedConcept, everything worked.
> 
> Ok, sorry for the troubles. I'll improve the docs to make this info
> easier to find. It is indeed lacking. Thanks for your support.

Ok, done. I added this to the adapted docs:

[heading Header]

     #include <boost/fusion/adapted.hpp>
     #include <boost/fusion/include/adapted.hpp>

Fusion sequences may also be adapted as fully conforming __mpl__ sequences (see
__intrinsics__). That way, we can have 2-way adaptation to and from __mpl__ and
Fusion. To make Fusion sequences fully conforming __mpl__ sequences, include:

     #include <boost/fusion/mpl.hpp>

If you want bi-directional adaptation to and from __mpl__ and Fusion, simply
include:

     #include <boost/fusion/include/mpl.hpp>

The header includes all the necessary headers.

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