Re: [Boost-bugs] [Boost C++ Libraries] #3604: Access violation on diamond inheritance

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #3604: Access violation on diamond inheritance
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2009-11-29 14:38:19

#3604: Access violation on diamond inheritance
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  Reporter:  kondo@…              |       Owner:  ramey        
      Type:  Bugs                 |      Status:  reopened     
 Milestone:  Boost 1.41.0         |   Component:  serialization
   Version:  Boost 1.40.0         |    Severity:  Problem      
Resolution:                       |    Keywords:               
----------------------------------+-----------------------------------------
Changes (by kondo@…):

  * status:  closed => reopened
  * resolution:  invalid =>

Comment:

 Sorry, I couldn't understand enough your comment.

 I modified my code (main.cpp) , and it made compile error.

 The compile error is in next code.
 {{{
         Target* pTarget2 = static_cast<Target *>(pVBase);
 }}}

 And next, I checked that use only static_cast from Target* to Vbase *, it
 doesn't make compile error, but run result is not changed.

 I think that we can't use static_cast as downcast.

 (Does it mean library internal behavior??)

 When we used BOOST_CLASS_EXPORT, I think that we can serialize sub-class
 via virtual base class.

 Please point out the wrong point of my code.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/3604#comment:3>
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