Re: [Boost-users] fusion Transformation function passed to transform

Subject: Re: [Boost-users] fusion Transformation function passed to transform
From: Joel de Guzman (joel_at_[hidden])
Date: 2010-02-25 21:02:08

On 2/26/2010 12:59 AM, Hicham Mouline wrote:
> Hello,
>
> The transformation function to pass to fusion::transform() function and metafunction
> are hard to get right, in particular the embedded inner result struct because of the
> fact that the template argument of result is a "function signature"

It assumes familiarity with the result_of protocol. See
http://www.boost.org/doc/libs/1_42_0/libs/utility/utility.htm#result_of
There's even a technical report on the matter.

> There is only the 1 simple example in
> libs/fusion/doc/html/fusion/algorithm/transformation/metafunctions/transform.html
>
> I for one would love to see another example where the fusion vector has different
> types, and where the result of transformation function depends on each type of the
> sequence transform is applied on.

Always check the example and test directories to see more examples.

Regards,
-- 
Joel de Guzman
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