Hi Jari,
I had the same frustration with Boost.Serialization these days, i know exactly what you're thinking: wtf?! This should be easy!
Let me tell you what solved the problem in my case...
Suppose you have a derived class D implemented as usual (D.hpp / D.cpp). You need to use the two macros mentioned at the end of the files *outside* any namespace. For instance:
//////////////////////////////D.hpp
namespace N
{
class D : public B
{
// something
};
} // namespace N
BOOST_CLASS_EXPORT_KEY( N::D )
//////////////////////////////D.cpp
#include D.hpp
namespace N
{
// D implementation
} // namespace N
BOOST_CLASS_EXPORT_IMPLEMENT( N::D )
You also need to include the boost::archives you're using in D.hpp, since this is the obscure way Boost.Serialization instantiates code for your class.
Regards,
Júlio.
2011/8/12 Jari
<jaristr@gmail.com>
I'm using 1.46.1.
So I must use EXPORT_KEY and EXPORT_IMPL ?
On Fri, Aug 12, 2011 at 7:33 AM, Robert Ramey <ramey@rrsd.com> wrote:
> Jari wrote:
>> Ok I tried one test code and it worked, but when I moved the all the
>> classes in header file and but the export macro in cpp file it fails
>> with "derived class not registered or exported".
>>
>> Then I moved the export macros to main.cpp right before main() and
>> before the saving/loading calls, and that did the trick.
>>
>> So it seems export's need to be in same CPP file where the
>> loading/saving starts?
>> Or is it in same cpp where the function is?
>>
>> Im using visual studio 10 express
>
>
> The question of export being in the *.ccp and/or in the header
> was a confusion which has only been resolved in recent
> versions of the library. Now there is EXPORT_KEY
> and EXPORT_IMPL... Which resolves the ocnfusion.
> I don't know which version of boost you're using so
> I don't know if this addresses your issue or not.
>
> Robert Ramey
>
>
>
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