Re: [Boost-users] [1.41][serialization] deserialization of weak_ptrfails

Subject: Re: [Boost-users] [1.41][serialization] deserialization of weak_ptrfails
From: Robert Ramey (ramey_at_[hidden])
Date: 2009-12-14 13:47:55

Normally, one would expect so serialize a base class using
the base object as below:

However, serialization for enable_shared_from_this has not
been written, so this won't work until that happens.  A few
minutes spent looking into this reveals that implementing
serialization for this class is not a trivial task.  So, for now,
this cannot be done.

Robert Ramey

Alexander Gutenev wrote:
> The example below works in 1.40 and fails in 1.41
>
> struct X
>  : boost::enable_shared_from_this<X>
> {
>  X(){}
>  virtual ~X() {}
>  explicit X(int i) : i(i) {}
>
>  template<class Archive>
>  void serialize(Archive & ar, const unsigned int version)
>  {
    ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(
        boost::enable_shared_from_this<X>
    );
>    ar & boost::serialization::make_nvp("i", i);
>  }
>
>  int i;
> };