Re: [Boost-users] [Serialization]Serialization of nested stl object

Subject: Re: [Boost-users] [Serialization]Serialization of nested stl object
From: Júlio Hoffimann (julio.hoffimann_at_[hidden])
Date: 2011-09-20 18:31:43

Hi Kangkook,

By removing the pointer in const string*, the code compiles. You have to
investigate how Boost.Serialization handles pointers to stdlib classes:

http://www.boost.org/doc/libs/1_47_0/libs/serialization/doc/index.html

I never tried to serialize a string* nor any pointer to a stdlib class
before. Although i know it's possible to use pointers for base classes
polymorphically. Serializing a string* shouldn't be a problem, i guess.

Regards,
Júlio.

2011/9/20 Kangkook Jee <aixer77_at_[hidden]>

> The following is the code snippet that wouldn't get compiled.
>
> #include <iostream>
> #include <fstream>
> #include <map>
> #include <string>
>
> #include <boost/archive/text_oarchive.hpp>
> #include <boost/archive/text_iarchive.hpp>
>
> #include <boost/serialization/map.hpp>
> #include <boost/serialization/set.hpp>
> #include <boost/serialization/string.hpp>
>
>
> using namespace std;
>
> class B {
>   //private attributes
>   map<const string* , set<unsigned> > lines;
>
>   //serialization
>   friend class boost::serialization::access;
>
>   template<class Archive>
>   void serialize (Archive & ar, const unsigned int version) {
>     ar & lines;
>   }
>
>
> public:
>   B() {}
> };
>
> main (int argc, char* argv[]) {
>
>   string fname(argv[1]);
>
>   B b0;
>
>   std::ofstream ofs (fname.c_str());
>   boost::archive::text_oarchive oa(ofs);
>   oa << b0;
>   ofs.close();
>
>   std::ifstream ifs(fname.c_str());
>   boost::archive::text_iarchive ia(ifs);
>   ia >> b0;
>   ifs.close();
>
>   return 0;
> }
>