Re: [Boost-bugs] [Boost C++ Libraries] #6167: Assignment from a temporary of a class containing boost::unordered_map members fails with GNU GCC.

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #6167: Assignment from a temporary of a class containing boost::unordered_map members fails with GNU GCC.
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-11-23 13:20:16

#6167: Assignment from a temporary of a class containing boost::unordered_map
members fails with GNU GCC.
----------------------------------------------+-----------------------------
  Reporter:  Geurt Vos <geurt.vos@…>          |       Owner:  igaztanaga
      Type:  Bugs                             |      Status:  new       
 Milestone:  To Be Determined                 |   Component:  unordered 
   Version:  Boost 1.48.0                     |    Severity:  Problem   
Resolution:                                   |    Keywords:            
----------------------------------------------+-----------------------------

Comment (by Geurt Vos <geurt.vos@…>):

 I see Boost.Move tells me how to work around it. Note also that assignment
 from map_list_of can't be done anymore (although that doesn't work at all
 when -std=c++0x, but that's not an unordered bug). So this will now also
 fail:

   boost::unordered_map<int, int> m;[[BR]]
   m = boost::assign::map_list_of(1, 1)(2, 2);

 I guess the only good way around it all ... is to provide two versions of
 all unordered containers (with & without move). So one in 'boost' and one
 in 'boost::container'.

 If that isn't going to happen and if this is not considered a bug, but a
 limitation (or nuisance), I'd say these breaking changes should be well
 documented @ Boost.Unordered.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/6167#comment:2>
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