Re: [boost] [review] Fusion review, result_of::make_pair missing

From: Joel de Guzman (joel_at_[hidden])
Date: 2006-05-07 21:03:32

Tobias Schwinger wrote:
> Another one (hope my piecemeal reports are OK):
> 
> There is no "result_of::make_pair" metafunction. It is needed because of the 'detail::as_fusion_element' type transformation in "fusion::make_pair".
> 
> With this 
> 
>   // missing result metafunction for fusion::make_pair
>   template<typename First, typename Second>
>   struct result_of_make_pair
>   {
>     typedef boost::fusion::pair<First,
>       typename boost::fusion::detail::as_fusion_element<Second>::type> type;
>   };
> 
> workaround in place fusion::pair gives a very useful context structure for folding...

Thanks! Duly noted.

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