Re: [boost] [functional] Generic Selector for STL Pair's and Boost.Tuple's

From: Dean Michael Berris (mikhailberis_at_[hidden])
Date: 2007-11-20 06:23:14

On Nov 20, 2007 12:37 AM, Giovanni Piero Deretta <gpderetta_at_[hidden]> wrote:
> On Nov 20, 2007 8:43 AM, Dean Michael Berris <mikhailberis_at_[hidden]> wrote:
> > [...]
> > Recently, I've implemented a simple utility which allows users to
> > select the nth element of an STL pair / Boost.Tuple in conjunction
> > with STL algorithms.
> > [...]
>
> This doesn't return the right thing with non const parameters. A very
> simple result_of compatible wrapper around fusion::at_c will do. In fact
> I think that fusion should provide function objects for every one of its
> algorithm.
>

You mean:

std::pair<int, int> pair(1, 2);
std::cout << boost::select<1>()(pair) << std::endl; // should output 2

?

I think I'm missing something here... Can you elaborate?

-- 
Dean Michael C. Berris
Software Engineer, Friendster, Inc.
[http://cplusplus-soup.blogspot.com/]
[mikhailberis_at_[hidden]]
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