[Boost-users] serialization. Free serialize function. Friend?

From: Javier Gonzalez (javierggt_at_[hidden])
Date: 2004-10-05 15:14:02

Hi all,

I'm trying to use the serialization library to
serialize some classes. The least intrusive case is a
headache because some of them don't even give me
constructors I can access.

The best would be to declare the serialize function as
a friend of my class. For some reason it doesn't work.
This is what I do in the class definition (inside
namespace evt):

    friend class boost::serialization::access;
    template<class Archive>
      friend void ::boost::serialization::serialize(
Archive & ar, Event & t, const unsigned int
file_version);

and this is what I do when I define the function:

  template<class Archive>
  void serialize( Archive & ar, evt::Event & t, const
unsigned int file_version)
  {    
    ar &  BOOST_SERIALIZATION_NVP(t.fSEvent);
  };

Then I include both headers where I need to use them
and allways get something like this:

/home/JGonzalez/private/serialization/Event.h:24:
`float evt::Event::fSEvent' 
   is private
/home/JGonzalez/private/serialization/SEventStreamers.h:32:
within this context

I don't know what I'm missing! I'm including both
files. Does any one have an idea that could help me?

thanks.

Javier

                
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