Re: [Boost-users] Boost serialization archive stream error exception

Subject: Re: [Boost-users] Boost serialization archive stream error exception
From: Ganeshram Iyer (ganeshramiyer_at_[hidden])
Date: 2011-05-18 14:52:14

On Wed, May 18, 2011 at 11:07 AM, Marco Piacentini
<marcopiacenta_at_[hidden]>wrote:

> Hi guys..I've the following problem..
>
> I have a file called A.h and a file B.h. each  contains some struct like
> this: (the structs inside the two classes are different)
>
>     struct Base
>     {
>         friend class access;
>
>         template <typename Archive>
>         void serialize(Archive& ar,const unsigned int version)
>         {
>             ar & fieldLength;
>             ar & fieldMD;
>             ar & fieldTime_Stamp;
>         }
>        public:
>             unsigned int fieldLength;
>             unsigned int fieldMD;
>             unsigned int fieldTime_Stamp;
>
>            virtual void f(){} //to be polymorphic the struct
>     };
>
>     struct Derived:public Base
>     {
> .        ...
>     }
>
> So i serialize the struct in the classic manner:
>
>     ....
>
>     std::ostringstream archive_stream;
>
>     boost::archive::text_oarchive archive(archive_stream);
>
>     archive.register_type(static_cast<Derived*>(NULL))
>
>     archive <<p;   // where p is a pointer to Base
>
> NOW THE PROBLEM...
> on the deserialization side, I follow the same (inverse) procedure...if I
> deserialize singularly the structs in A.h (without include in the project
> B.h) and the structs in B.h (without include in the project A.h) all
> works....but If I include in the project both the classes, the
> deserialization  works for one class, but  throws the "Stream error
> exception" in the  instruction   " archive >> m;" for the other...it seems a
> conflict in the registration class or something like this...
> Any ideas?thanks...
>
> I recently ran into this same exception in Boost (although my version was
1.36). I referred to the following URL for help -
http://www.boost.org/doc/libs/1_36_0/libs/serialization/doc/exceptions.html#stream_error,
but my problem was solved with this reference (
http://stackoverflow.com/questions/5178321/boost-serialization-problem-in-windows-vs2005-input-stream-error/5179154#5179154),
which was more relevant to my problem, since I was using a binary_archive.

Hope one of these references are useful to you.
Thanks
Ganesh
-- 
Ganeshram Iyer
Open Source and CAD: http://ossandcad.blogspot.com
ganeshramiyer_at_[hidden]