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: 2010-05-24 12:32:46

#3604: Access violation on diamond inheritance
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  Reporter:  kondo@…              |       Owner:  ramey         
      Type:  Support Requests     |      Status:  closed        
 Milestone:  Boost 1.41.0         |   Component:  serialization 
   Version:  Boost 1.40.0         |    Severity:  Not Applicable
Resolution:  fixed                |    Keywords:                
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Comment(by kondo@…):

 > I'm adding this change to the library. I'm adding your
 test_diamond_complex to the test suite I'm updating the "acknowledgments"
 section to include your contribution.

 It's my honor. I'm very glad to contribute to your library.

 > Since you've invested a lot of understanding in the library, you might
 want to consider investigating some other issues.

 > a) My original implementation and your fix of virtual base class
 serialization depends on the compiler enabling RTTI. This is not a huge
 limitation, I'll note it in the documentation. But wonder if there is a
 way around this?

 I think that if we follow the C++ standard, it is impossible. As you know,
 downcasting via virtual base class must use dynamic_cast.

 But...

 If we go out of the C++ stantard, there might be some possibilities. Of
 course it depends on the compiler implementation.
 I think it is dangerous.
 Nevertheless, Do you think that RTTI free implementation is still
 important?
 If you think so, I'll consider about it.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/3604#comment:15>
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