Re: [Boost-bugs] [Boost C++ Libraries] #2841: boost::hash to support boost::dynamic_bitset

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #2841: boost::hash to support boost::dynamic_bitset
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2009-03-09 22:01:22

#2841: boost::hash to support boost::dynamic_bitset
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  Reporter:  astukalov_at_[hidden]  |       Owner:  gennaro_prota 
      Type:  Feature Requests     |      Status:  new           
 Milestone:  Boost 1.39.0         |   Component:  dynamic_bitset
   Version:  Boost 1.38.0         |    Severity:  Optimization  
Resolution:                       |    Keywords:                
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Comment(by anonymous):

 Replying to [comment:1 danieljames]:
 > I don't know anything about dynamic_bitset, but I suspect the hash
 function will also need to include the length of the bitset so that '1',
 '10' and '01' all have different hash values.
 >
 Well, yes, adding length may improve hashing quality. On the other hand,
 the length of `m_bits` array directly correlates with the length of
 bitset, so it's (kind of) already included.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/2841#comment:2>
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