Re: [Boost-users] [Serialization] shared_ptr to const object

Subject: Re: [Boost-users] [Serialization] shared_ptr to const object
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2009-12-21 11:43:59

AMDG

elizabeta petreska wrote:
> I just want to say that I managed to solve this problem without creating a
> temporary , thanks to this thread :
> http://old.nabble.com/(de)serializing-map%3Cconst-A*%3E-to5538474.html#a5596607<http://old.nabble.com/%28de%29serializing-map%3Cconst-A*%3E-to5538474.html#a5596607>
>
> And here it is what I have got in my problem :
>
>     boost::shared_ptr<const TT> jj(new TT(5));
>
>     {
>         boost::archive::xml_oarchive oa(ofs);
>         oa & BOOST_SERIALIZATION_NVP(jj);
>     }
>
>     boost::shared_ptr<const TT> rjj;
>
>     {
>         void* xptr=&rjj;
>         boost::shared_ptr<TT> *xxptr;
>         xxptr=static_cast< boost::shared_ptr<TT> * > (xptr);
>         boost::archive::xml_iarchive ia(ifs);
>         ia & BOOST_SERIALIZATION_NVP(*xxptr);
>     }
>   

This is undefined behavior.  I would strongly advise against it
if there is a reasonable alternative.

In Christ,
Steven Watanabe