[boost] [candidate bloom_filter] Default Sequence

Subject: [boost] [candidate bloom_filter] Default Sequence
From: JOAQUIN M. LOPEZ MUÑOZ (joaquin_at_[hidden])
Date: 2009-06-10 13:36:04

Currently, the default Sequence template arg is

class Sequence = fusion::vector<
            detail::default_hash<0>,
            detail::default_hash<1>,
            detail::default_hash<2>
                >

which implies the default K is 3. I propose to
generalize this a bit so that we have something like

template<typename K>
default_hash_sequence...;

such that default_hash_sequence<K> is the fusion
sequence default_hash<0>,...,default_hash<K-1>
(I don't know Fusion but I'm sure this can be done) and
then put

class Sequence = default_hash_sequence<3>

So, a user can easily set

bloom_filter<foo,default_hash_sequence<K> >

with a K other than 3.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo