[Boost-bugs] [Boost C++ Libraries] #1774: serialization: file written with 1.34.1 can't be read in with 1.35

Subject: [Boost-bugs] [Boost C++ Libraries] #1774: serialization: file written with 1.34.1 can't be read in with 1.35
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2008-04-04 18:15:41

#1774: serialization: file written with 1.34.1 can't be read in with 1.35
-----------------------------------+----------------------------------------
 Reporter:  filippeters_at_[hidden]  |       Owner:  ramey        
     Type:  Bugs                   |      Status:  new          
Milestone:  To Be Determined       |   Component:  serialization
  Version:  Boost 1.35.0           |    Severity:  Showstopper  
 Keywords:                         |  
-----------------------------------+----------------------------------------
 std::vectors of basic types, saved with 1.34.1, can't be read by 1.35:

 simple sample, write file with 1.34.1:
         std::vector<unsigned int> vectorToSave;
         vectorToSave.push_back(0);
         vectorToSave.push_back(1);
         vectorToSave.push_back(2);


     std::string filename("C:\\test1341.xml");
         {
             std::ofstream ofs(filename.c_str());
             assert(ofs.good());
             boost::archive::xml_oarchive oa(ofs);
             oa << BOOST_SERIALIZATION_NVP(vectorToSave);
         }

 And with 1.35:
         std::vector<unsigned int> vectorToLoad;
     std::string oldfilename("C:\\test1341.xml");
         try{
                 std::ifstream ifs(oldfilename.c_str());
                 assert(ifs.good());
                 boost::archive::xml_iarchive ia(ifs);

                 // restore the schedule from the archive
                 ia >> BOOST_SERIALIZATION_NVP(vectorToLoad);
         }
         catch(...){
             std::cout << "\nproblem";
         }

 This will end up in the catch.

 sample output from 1.34:[[BR]]

 <?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
 <!DOCTYPE boost_serialization>
 <boost_serialization signature="serialization::archive" version="4">
 <vectorToSave>
     <count>2</count>

 == <item_version>0</item_version> ==

     <item>0</item>
     <item>1</item>
 </vectorToSave>
 </boost_serialization>

 sample output from 1.35:[[BR]]

 <?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
 <!DOCTYPE boost_serialization>
 <boost_serialization signature="serialization::archive" version="4">
 <vectorToSave>
     <count>2</count>
     <item>0</item>
     <item>1</item>
 </vectorToSave>
 </boost_serialization>

 Notice the missing <item_version>0</item_version>

-- 
Ticket URL: <http://svn.boost.org/trac/boost/ticket/1774>
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