[Boost-users] [tuple][hash] Hashing a tuple question

Subject: [Boost-users] [tuple][hash] Hashing a tuple question
From: Chris Hite (C.Hite_at_[hidden])
Date: 2009-07-01 12:27:47

The code using fusion::fold is elegant, but you still have to define a 
functor before using it.

Couldn't boost just define a default hasher for tuple like the default 
comparison <boost/tuple/tuple_comparison.hpp>?

I've got a tuple with 3 ints in it.  I can compare them for free.  Why 
can't I just hash them for free? 

All we'd have to do is define a hash_value function for tuple that calls 
fold.