Re: [Boost-bugs] [Boost C++ Libraries] #2563: [boost][serialization] void_upcast is very slow

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #2563: [boost][serialization] void_upcast is very slow
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2008-12-05 10:03:59

#2563: [boost][serialization] void_upcast is very slow
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  Reporter:  jacobholm_at_[hidden]  |       Owner:  ramey        
      Type:  Feature Requests     |      Status:  assigned     
 Milestone:  Boost 1.38.0         |   Component:  serialization
   Version:  Boost 1.37.0         |    Severity:  Optimization 
Resolution:                       |    Keywords:               
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Comment(by jacobholm_at_[hidden]):

 The project I am using contains derived classes with member variables. If
 possible, I think that the best way would be to modify void_upcast to use
 static_cast<T> with templates. That way one would be able to use multiple
 inheritance as well. Another solution could be to have an option to
 disable upcast alltogether, letting the user keep track of inheritance
 between classes. If used correctly this last solution will work with
 multiple inheritance as well.

 I have attached an example cpp file to the ticket which uses static_cast
 on derived objects, together with multiple inheritance.

 Yours sincerely,

 Jacob Holm

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/2563#comment:2>
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