Re: [Boost-bugs] [Boost C++ Libraries] #5741: Declare sequence_index as non-copyable

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #5741: Declare sequence_index as non-copyable
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-07-30 13:14:32

#5741: Declare sequence_index as non-copyable
-----------------------------------------------------+----------------------
  Reporter:  Maxime van Noppen <maxime@…>            |       Owner:  joaquin    
      Type:  Feature Requests                        |      Status:  new        
 Milestone:  To Be Determined                        |   Component:  multi_index
   Version:  Boost 1.47.0                            |    Severity:  Problem    
Resolution:                                          |    Keywords:             
-----------------------------------------------------+----------------------

Comment (by Michel MORIN <mimomorin@…>):

 Follow up:

 The fix (to tell `BOOST_FOREACH` to avoid coping `sequenced_index`) needs
 forward declaration of `foreach::is_noncopyable`.

 {{{
 namespace boost{ namespace foreach{

 template<typename T> struct is_noncopyable; // forward declaration

 template<typename SuperMeta,typename TagList>
 struct is_noncopyable<
   multi_index::detail::sequenced_index<SuperMeta, TagList>
 >:mpl::true_
 {
 };

 }}
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/5741#comment:1>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.