[boost] boost::multi_index::key_extractors status

From: Loïc Joly (loic.actarus.joly_at_[hidden])
Date: 2005-02-27 13:04:04

Hello everybody,

I'm discovering boost::multi_index, and something strikes me: I've been 
dreaming of something like boost::multi_index key extractors (and 
especially member) for most of my std::set or std::sort uses.

I therefore think that this part of boost::multi_index does not belong 
in this library, but is more general purpose, and deserves a library of 
its own, along with a way to get a suitable less predicate from the 
result of those. All the arguments that make such a framework usefull 
for boost::multi_index can equally be applied to STL containers and 
algorithms.

I wonder if such a proposal has already been made (maybe it even already 
exists, boost has so many parts that I may be unaware of this), and in 
the positive case what were the arguments in favor or in opposition of it.

Best regards,

-- 
Loïc