Container* result_container is an attribute of the struct Example. Thanks for attention. On 4/28/10, Robert Ramey wrote:

Marco Meoni - Sbaush wrote:

...

Now myNewExample is a well format instance of Example, but the attributes are empty.

What do you mean by "attributes" ?

Robert Ramey

-- Marco Meoni - Sbaush www.marcomeoni.net

I obtain this error: c:\boost\boost_1_42\boost\serialization\access.hpp(118) : error C2039: 'serialize' : is not a member of 'Container' I can overcome the problem by defining the serialize method inside container. But container is an external library, so i can't modify it. I would serialize the entire contents of Example without touching the others structures. I thought that smart pointers could be the right solution for me. What i shoud do instead in your opinion? thanks. Marco. On Wed, Apr 28, 2010 at 11:19 PM, Robert Ramey wrote:

Marco Meoni - Sbaush wrote:

...

struct Example{ friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int /* file_version */){ ar & results_container; // INCLUDE THIS

...

} Container* results_container; MyMap this_is_a_map; Example(){} ... ... }; Try specifying which members you want to serialize in the serialize function. See above. Robert Ramey

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Marco Meoni - Sbaush wrote:

I've tried to serialize all the structure with "ar & *this;" inside serialize function.

Don't do this. Robert Ramey

I've obtained a stack overflow. Unhandled exception at 0x004660b9 in example.exe: 0xC00000FD: Stack overflow.

Have you idea how can i serialize all my object?

On Thu, Apr 29, 2010 at 11:08 AM, Marco Meoni - Sbaush wrote:

I obtain this error: c:\boost\boost_1_42\boost\serialization\access.hpp(118) : error C2039: 'serialize' : is not a member of 'Container'

I can overcome the problem by defining the serialize method inside container. But container is an external library, so i can't modify it. I would serialize the entire contents of Example without touching the others structures. I thought that smart pointers could be the right solution for me. What i shoud do instead in your opinion?

thanks.

Marco.

On Wed, Apr 28, 2010 at 11:19 PM, Robert Ramey wrote:

Marco Meoni - Sbaush wrote:

...

struct Example{ friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int /* file_version */){ ar & results_container; // INCLUDE THIS

...

} Container* results_container; MyMap this_is_a_map; Example(){} ... ... };

Try specifying which members you want to serialize in the serialize function. See above.

Robert Ramey

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i read all the boost manual, but i don't have found how serialize nested structures editing only the first struct. i can't put the serialize method in the Container because Container contains a lot of other structures, and these structures contain other structures and so on. I wish I could serialize all serializing only the parent class Can you help me, pointing the manual section with this, or show me a basic example? Thank you so much. On Thu, Apr 29, 2010 at 6:29 PM, Robert Ramey wrote:

Marco Meoni - Sbaush wrote:

...

I obtain this error: c:\boost\boost_1_42\boost\serialization\access.hpp(118) : error C2039: 'serialize' : is not a member of 'Container'

I can overcome the problem by defining the serialize method inside container. But container is an external library, so i can't modify it. I would serialize the entire contents of Example without touching the others structures. I thought that smart pointers could be the right solution for me. What i shoud do instead in your opinion?

thanks.

Marco.

On Wed, Apr 28, 2010 at 11:19 PM, Robert Ramey wrote:

Marco Meoni - Sbaush wrote:

...

struct Example{ friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int /* file_version */){ ar & results_container; // INCLUDE THIS

...

} Container* results_container; MyMap this_is_a_map; Example(){} ... ... };

Try specifying which members you want to serialize in the serialize function. See above.

Make sure your serialize function is in the proper namespace - see manual.

Robert Ramey

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Marco Meoni - Sbaush wrote:

Can someone help me? Robert, where can I find what you're talking about?

I don't know what you're trying to do so I'll take a guess. Does this look like what you want to do? struct Container { int m_container_member; ... // more members template<class Archive> void serialize(Archive & ar, const unsigned int version){ ar & m_container_member; ... // more members } }; struct Example { friend class boost::serialization::access; // not really necessary as all "struct" members are public template<class Archive> void serialize(Archive & ar, const unsigned int version){ ar & m_container; } }; int main(int argc, char * argv[]){ const Container c = ... std::fostream os("filename"); boost::serialization::archive ar(os); ar & c; } Does that help any? Robert Ramey

Marco Meoni - Sbaush wrote:

Yes. I did an example like this to learn how to serialize in the "classical" way.

My problem is that i can't define a serialize method inside Container, but i would serialize it anyway. How can i serialize the Example strut entirely?

Do you understand my problem?

Please don't top post. How does: http://www.boost.org/doc/libs/1_42_0/libs/serialization/doc/tutorial.html#no... differ from what you want to do? Jeff

Try looking inside boost/serialization/vector.hpp to see how it was done for the STL containers. Robert Ramey Marco Meoni - Sbaush wrote:

Yes. I did an example like this to learn how to serialize in the "classical" way.

My problem is that i can't define a serialize method inside Container, but i would serialize it anyway. How can i serialize the Example strut entirely?

Do you understand my problem?

On Fri, Apr 30, 2010 at 3:49 AM, Robert Ramey wrote:

Marco Meoni - Sbaush wrote:

...

Can someone help me? Robert, where can I find what you're talking about?

I don't know what you're trying to do so I'll take a guess.

Does this look like what you want to do?

struct Container { int m_container_member; ... // more members template<class Archive> void serialize(Archive & ar, const unsigned int version){ ar & m_container_member; ... // more members } };

struct Example { friend class boost::serialization::access; // not really necessary as all "struct" members are public template<class Archive> void serialize(Archive & ar, const unsigned int version){ ar & m_container; } };

int main(int argc, char * argv[]){ const Container c = ... std::fostream os("filename"); boost::serialization::archive ar(os); ar & c; }

Does that help any?

Robert Ramey

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Hi all. I understood how to serialize correctly nested structures, defining serialize method inside all. I've a problem with an attribute of a struct. The attribute is border of OpenCV CvSeq type. Here is my code... what can i do to solve this? struct Element{ unsigned int id; double area; double perimeter; CvRect bounding_box; CvSeq* border; ... ... }; namespace boost { namespace serialization { template<class Archive> void serialize(Archive & ar, Element & g, const unsigned int version) { ar & g.id; ar & g.area ; ar & g.perimeter ; ar & g.bounding_box.width ; ar & g.bounding_box.height ; ar & g.bounding_box.x ; ar & g.bounding_box.y ; // ar & g.border; I CAN'T DO THIS... } } } The error that I obtain is: c:\boost\boost_1_42\boost\serialization\access.hpp(118) : error C2039: 'serialize' : is not a member of 'CvSeq' c:\opencv2.0\include\opencv\cxtypes.h(1240) : see declaration of 'CvSeq' For CvRect bouding:box i overcame the problem serializing the sub-elements of CvRect. thanks for help. Marco. On Mon, May 3, 2010 at 3:39 PM, Marco Meoni - Sbaush wrote:

I don't know if I understood correctly but I understood that the key function of vector serialization is split_free. I did not understand how to use this technique in the case of my example. Can you help me understand the workings of the vector serialization so as to know how to extend it to classes? What can i read to understand how to solve?

Thanks...

Marco.

On Fri, Apr 30, 2010 at 6:08 PM, Robert Ramey wrote:

...

Try looking inside boost/serialization/vector.hpp to see how it was done for the STL containers.

Robert Ramey

Marco Meoni - Sbaush wrote:

...

Yes. I did an example like this to learn how to serialize in the "classical" way.

My problem is that i can't define a serialize method inside Container, but i would serialize it anyway. How can i serialize the Example strut entirely?

Do you understand my problem?

On Fri, Apr 30, 2010 at 3:49 AM, Robert Ramey wrote:

Marco Meoni - Sbaush wrote:

...

Can someone help me? Robert, where can I find what you're talking about?

I don't know what you're trying to do so I'll take a guess.

Does this look like what you want to do?

struct Container { int m_container_member; ... // more members template<class Archive> void serialize(Archive & ar, const unsigned int version){ ar & m_container_member; ... // more members } };

struct Example { friend class boost::serialization::access; // not really necessary as all "struct" members are public template<class Archive> void serialize(Archive & ar, const unsigned int version){ ar & m_container; } };

int main(int argc, char * argv[]){ const Container c = ... std::fostream os("filename"); boost::serialization::archive ar(os); ar & c; }

Does that help any?

Robert Ramey

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-- Marco Meoni - Sbaush www.marcomeoni.net

Yes, ok, but i can't access or write in OpenCV source code. How can i serialize however? On Mon, May 10, 2010 at 4:02 PM, Jeff Flinn wrote:

Marco Meoni - Sbaush wrote:

...

Hi all. I understood how to serialize correctly nested structures, defining serialize method inside all. I've a problem with an attribute of a struct. The attribute is border of OpenCV CvSeq type.

Here is my code... what can i do to solve this?

struct Element{ unsigned int id; double area; double perimeter; CvRect bounding_box; CvSeq* border; ... ... };

namespace boost { namespace serialization {

template<class Archive> void serialize(Archive & ar, Element & g, const unsigned int version) { ar & g.id http://g.id;

ar & g.area ; ar & g.perimeter ; ar & g.bounding_box.width ; ar & g.bounding_box.height ; ar & g.bounding_box.x ; ar & g.bounding_box.y ; // ar & g.border; I CAN'T DO THIS...

You need to do the same for CvSeq that you did for Element:

template<class Archive> void serialize(Archive& ar, CvSeq& aCvSeq , const unsigned int) { ...

Jeff

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