Re: [Boost-bugs] [Boost C++ Libraries] #4660: Error read binary archive, created by old boost version

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #4660: Error read binary archive, created by old boost version
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-09-21 04:54:24

#4660: Error read binary archive, created  by old boost version
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  Reporter:  serge-voropaev@…          |       Owner:  ramey        
      Type:  Bugs                      |      Status:  new          
 Milestone:  To Be Determined          |   Component:  serialization
   Version:  Boost 1.44.0              |    Severity:  Showstopper  
Resolution:                            |    Keywords:               
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Comment (by ramey):

 ouch - my mistake.  This last documentation change didn't make it into the
 release branch. I've checked it in though I don't think it will show up
 until the next release.  So I'm including the relevant text right here

 Differences from Boost 1.43

     * fixed bug in the serialization of virtual base classes. Due to
 heroic efforts by Takatoshi Kondo.
     * Native binary archives created under versions 1.42 and 1.43 suffer
 from a serious problem. It's likely they won't be readable by this latest
 version. This due to the fact that 1.42 made some changes in the binary
 format of some types. Normally this could be addressed by detecting the
 library version number written into the archive header. Unfortunately,
 this library version number was not incremented at 1.42 as it should have
 been. So now we have two different binary archive versions with the same
 library version number.

       This has been addressed by including a small utility in the example
 directory named fix_six.cpp. This should be run with the command line

           fix_six <file name>


       This will assign 7 to the library version number of the archive.
 This fix will need to be applied to native binary archives created with
 boost versions 1.42 and 1.43.

 Let me know if this addresses the situation.

 Robert Ramey

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4660#comment:3>
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