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: 2008-12-04 20:29:21

#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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Changes (by ramey):

  * status:  new => assigned

Comment:

 I am interested in making the library faster.

 But, I don't see your solution working execept in special cases.
 void_upcast also "shifts" the pointer much like

 static_cast<A *>(b)

 would.  Your solution would work only when the derived class has not
 member variables

 Robert Ramey

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/2563#comment:1>
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