Re: [Boost-bugs] [Boost C++ Libraries] #6974: boost::optional compilation error with boost::function and boost::fusion::vector

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #6974: boost::optional compilation error with boost::function and boost::fusion::vector
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-02-19 15:54:07

#6974: boost::optional compilation error with boost::function and
boost::fusion::vector
------------------------------------------------------------+---------------
  Reporter:  Jonathan Jones <jonathan.jones@…>              |       Owner:  fcacciola
      Type:  Bugs                                           |      Status:  new      
 Milestone:  To Be Determined                               |   Component:  optional 
   Version:  Boost 1.49.0                                   |    Severity:  Problem  
Resolution:                                                 |    Keywords:           
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Comment (by Jonathan Jones <jonathan.jones@…>):

 For what it's worth, the local workaround we deployed was to makes the
 optional_base copy constructor and destructor public, but _only_ when the
 BOOST_IS_CONVERTIBLE macro isn't defined.  When this macro _is_ defined,
 is seems to be implemented in terms of lower-level compiler intrinsics,
 which do a better job than the boost::is_convertible implementation.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/6974#comment:4>
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