[Boost-bugs] [Boost C++ Libraries] #4544: shared_ptr seems to be mistake in unordered_set

Subject: [Boost-bugs] [Boost C++ Libraries] #4544: shared_ptr seems to be mistake in unordered_set
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-08-16 16:11:47

#4544: shared_ptr seems to be mistake in unordered_set
-------------------------------------------+--------------------------------
 Reporter:  showern <showern@…>            |       Owner:         
     Type:  Bugs                           |      Status:  new    
Milestone:  Boost.Jam 4.0.0                |   Component:  None   
  Version:  Boost 1.44.0                   |    Severity:  Problem
 Keywords:                                 |  
-------------------------------------------+--------------------------------
 class Abc
 {
 };

 int main()
 {
     boost::shared_ptr a(new Abc);
     boost::shared_ptr b(new Abc);
     unordered_set<shared_ptr<Abc> > xx;
     xx.insert(a);
     xx.insert(b);

     // always get 1 here,
     cout << xx.hash_function()(a) << " " << xx.hash_function()
     << endl;

     return 0;
 }

 judging two objects pointed by shared_ptr should compare the address of
 them, but how hash_function() always returns 1?

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4544>
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