Re: [Boost-users] Hashtable

Subject: Re: [Boost-users] Hashtable
From: Ion Gaztañaga (igaztanaga_at_[hidden])
Date: 2010-11-11 16:30:01

On 08/11/2010 18:18, Ricardo Uribe Lobello wrote:
>
> Good afternoon,
>
> I have been trying to use the boost::intrusive::hashtable class but i
> don't understand
> clearly how it works. Additionally, I would like to change the hashing
> function used.
> Where can i get some example of the hashtable usage?

It's very similar to unordered_set, see

http://www.boost.org/doc/libs/1_44_0/doc/html/intrusive/unordered_set_unordered_multiset.html#intrusive.unordered_set_unordered_multiset.unordered_set_unordered_multiset_example

To change the hash function add hash<> template option parameter:

using ::boost::intrusive;

hashtable<T, hash<my_hash_func> > htable 
(BaseSet::bucket_traits(buckets_ptr, buckets_size);

Best,

Ion