[boost] Re: [MPL] unlambda primitive

From: Joel (djowel_at_[hidden])
Date: 2005-01-06 19:07:47

David Abrahams wrote:
> Aleksey Gurtovoy wrote:
> 
> 
>>Any particular reason why you decided against implicit scoping along
>>the lines of
>>
>>    for_each( _1, push_back(_1, outer(_2)) )
>>
>>?
> 
> 
> It doesn't generalize all that well, FWIW.  What if you have to go out
> by 2 scopes?

     outer(outer(_2))

or

     outer<2>(_2)

livable, IMO, but I prefer the more general local-variable
approach. The syntax is terser, FWIW.

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