Re: [Boost-bugs] [Boost C++ Libraries] #1267: Assertion `new_cid == cid' failed in basic_iarchive

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #1267: Assertion `new_cid == cid' failed in basic_iarchive
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2007-09-19 19:32:24

#1267: Assertion `new_cid == cid' failed in basic_iarchive
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  Reporter:  mbergin_at_[hidden]  |       Owner:  ramey        
      Type:  Bugs                |      Status:  new          
 Milestone:  To Be Determined    |   Component:  serialization
   Version:  Boost 1.34.1        |    Severity:  Problem      
Resolution:                      |    Keywords:               
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Comment (by gwossum_at_[hidden]):

 I've encountered the same problem with g++ 3.2.3.  With g++ 3.2.3, it
 occurs any time I try to serialize a thaw a derived class through an
 abstract base class pointer, whether or not separate save and load methods
 are used.  Dropping the BOOST_CLASS_EXPORT() for the abstract base class
 does NOT fix the problem.  Only making the base class non-abstract makes
 the problem go away, which isn't always an appealing option.

 As a curious note, I have a class heirarchy that involves an abstract base
 class A, an abstract subclass of A (B), and a several concrete subclasses
 of B.  I encounter issues if A is abstract, but if I make A concrete but B
 is still abstract, I don't get any problems.

-- 
Ticket URL: <http://svn.boost.org/trac/boost/ticket/1267#comment:3>
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