Re: [Boost-bugs] [Boost C++ Libraries] #6850: serialization/deserialization does not work for more than 25 objects (very strange!!!)

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #6850: serialization/deserialization does not work for more than 25 objects (very strange!!!)
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-07-15 20:29:00

#6850: serialization/deserialization does not work for more than 25 objects (very
strange!!!)
--------------------------------------------------+-------------------------
  Reporter:  Liviu <liviu_c_dorobantu@…>          |       Owner:  ramey                           
      Type:  Bugs                                 |      Status:  closed                          
 Milestone:  To Be Determined                     |   Component:  serialization                   
   Version:  Boost 1.47.0                         |    Severity:  Problem                         
Resolution:  invalid                              |    Keywords:  serialization deserialization 25
--------------------------------------------------+-------------------------
Changes (by ramey):

  * status:  new => closed
  * resolution:  => invalid

Comment:

 the default std::vector size is some number.  You're not overriding that
 when oyu rebuild. You might want to look into how std:vector is
 serialized. I believe you should let the standard code in the library do
 this for you.  That is, you should change your code to:


 {{{
 #include <boost/archive/binary_oarchive.hpp>
 #include <boost/archive/binary_iarchive.hpp>
 #include <boost/serialization/string.hpp>
 #include <boost/serialization/vector.hpp> // note:use standard vector
 serialization !
 #include <iostream>
 #include <string>
 #include <fstream>

 using namespace std;
 #define COUNT 26

 class person;
 vector<person> v;

 class person
 {
 public:
     string _name;
     int _age;
     person (string name="Liviu", int age=25):_name(name),_age(age){};
     friend class boost::serialization::access;
     template <typename Archive>
         void serialize(Archive & ar, const unsigned int version)
     {
         ar & _name;
         ar & _age;
     }
 };

 void save()
 {
     ofstream file("archiv.cst");
     boost::archive::binary_oarchive oa(file);
     oa << v;
     file.close();
 };

 void load()
 {
     ifstream file("archiv.cst");
     boost::archive::binary_iarchive ia(file);
     ia >> v;
     file.close();
 };

 int main()
 {
     int i;

     for (i=1; i<=COUNT; i++){
         v.push_back(person("John", i));
     }

     cin>>i;
     while (i!=2)
     {
         if (i==0) save();
         if (i==1) load();
         cin>>i;
     }
 }
 }}}

 and see how that works.  I think I'm correct, so I'm going to close this
 item for now.

 Robert Ramey

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/6850#comment:1>
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