My pointer to a char is actually an array. Is it possible to serialize it in this way? Ariel On Tue, Apr 8, 2008 at 4:54 PM, Robert Ramey wrote:

serializing a pointer to a char is will only serialize one char.

try serializating either an array of characters or an std::string

Robert Ramey

"Ariel Brunetto" wrote in message news:c1bd22250804081016m1bf9c734s143a08b9a166a2bb@mail.gmail.com... Hello!

My name is Ariel and this is my first time with boost. I spent a few days looking arround the serialization library, and right now I have a project with my first serialized classes. I spent some time reading the documentation and the tutorial. I am having problems serializing pointers. I am trying to serialize a const char* and it seems that doesn't work in the trivial way.

This is my code:

//----------------------------------------------------------------------------- // myserializeclass.h

//----------------------------------------------------------------------------- #include <fstream> #include #include #include

//----------------------------------------------------------------------------- class MySerializeClass { private: friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int uiVersion) { ar & m_pChar; } // members to serialize public: char* m_pChar; };

//----------------------------------------------------------------------------- BOOST_CLASS_TRACKING(MySerializeAbstractBase, ::boost::serialization::track_never)

//-----------------------------------------------------------------------------

//----------------------------------------------------------------------------- // myserializeclass.cpp

//----------------------------------------------------------------------------- int main() { MySerializeClass MySerializeClassObject;

std::ofstream ofs(akFilename); boost::archive::binary_oarchive oa(ofs);

oa << MySerializeClassObject; return 0; }

//-----------------------------------------------------------------------------

It doesn't compile. I get the following error:

1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\boost\serialization\access.hpp(109) : error C2228: left of '.serialize' must have class/struct/union

I know that this is my mistake, but I don't know how to fix it ;). I know that there is a lot of consideration about pointer serialization. Could you point me in the right direction?

Thanks in advance! Ariel

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Sorry, but I dont understand. The documentation says that I can serialize a pointer to a Serializable type such as a primitive type. Is this true? Ariel On Tue, Apr 8, 2008 at 7:28 PM, Robert Ramey wrote:

binary_object will do it - but you have to create the array by hand.

look at using a reference to an array in stead of a pointer.

Robert Ramey

"Ariel Brunetto" wrote in message news:c1bd22250804081247i4c34489fh5f69a0d0c8595b73@mail.gmail.com... My pointer to a char is actually an array. Is it possible to serialize it in this way?

Ariel

On Tue, Apr 8, 2008 at 4:54 PM, Robert Ramey wrote:

...

serializing a pointer to a char is will only serialize one char.

try serializating either an array of characters or an std::string

Robert Ramey

"Ariel Brunetto" wrote in message news:c1bd22250804081016m1bf9c734s143a08b9a166a2bb@mail.gmail.com... Hello!

My name is Ariel and this is my first time with boost. I spent a few days looking arround the serialization library, and right now I have a project with my first serialized classes. I spent some time reading the documentation and the tutorial. I am having problems serializing pointers. I am trying to serialize a const char* and it seems that doesn't work in the trivial way.

This is my code:

//----------------------------------------------------------------------------- // myserializeclass.h

//----------------------------------------------------------------------------- #include <fstream> #include #include #include

//----------------------------------------------------------------------------- class MySerializeClass { private: friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int uiVersion) { ar & m_pChar; } // members to serialize public: char* m_pChar; };

//----------------------------------------------------------------------------- BOOST_CLASS_TRACKING(MySerializeAbstractBase, ::boost::serialization::track_never)

//-----------------------------------------------------------------------------

//----------------------------------------------------------------------------- // myserializeclass.cpp

//----------------------------------------------------------------------------- int main() { MySerializeClass MySerializeClassObject;

std::ofstream ofs(akFilename); boost::archive::binary_oarchive oa(ofs);

oa << MySerializeClassObject; return 0; }

//-----------------------------------------------------------------------------

It doesn't compile. I get the following error:

1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\boost\serialization\access.hpp(109) : error C2228: left of '.serialize' must have class/struct/union

I know that this is my mistake, but I don't know how to fix it ;). I know that there is a lot of consideration about pointer serialization. Could you point me in the right direction?

Thanks in advance! Ariel

------------------------------

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_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

-- ________________ Ariel Brunetto www.aquadize.com

------------------------------

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-- ________________ Ariel Brunetto www.aquadize.com

Yes, but I am trying to serialize a char*, not a const char*. Is it possible? Thank you, Ariel On Wed, Apr 9, 2008 at 4:17 AM, Igor R. wrote:

...

Sorry, but I dont understand. The documentation says that I can serialize a pointer to a Serializable type such as a primitive type. Is this true?

Yes, but in case of pointer to const char your primitive type is const char.

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-- ________________ Ariel Brunetto www.aquadize.com

Hi Ariel, if you want to use char* to deal with text, I'd recommend to use std::string instead, if you're interested in an array, you might want to consider using a std::vector. If you can't do this for some reason, here's some code which serializes a DREAL* (DREAL=double) and should work similarly for char*: friend class boost::serialization::access; template<class Archive> void save(Archive & ar, const unsigned int version) const { ar & num_labels; for (int i=0; i < num_labels; ++i) { ar & labels[i]; } } template<class Archive> void load(Archive & ar, const unsigned int version) { ar & num_labels; if (num_labels > 0) { labels = new DREAL[num_labels]; for (int i=0; i< num_labels; ++i) { ar & labels[i]; } } } BOOST_SERIALIZATION_SPLIT_MEMBER(); Cheers, Chris Ariel Brunetto wrote:

Yes, but I am trying to serialize a char*, not a const char*. Is it possible?

Thank you, Ariel On Wed, Apr 9, 2008 at 4:17 AM, Igor R. mailto:igor_rubinov@hotmail.com> wrote:

> Sorry, but I dont understand. The documentation says that I can serialize a pointer to a Serializable type such as a primitive type. Is this true?

Yes, but in case of pointer to const char your primitive type is const char.

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you can but if you serialize a pointer to a character I don't think you'll get back what you want. Upon loading, the system will create a single new character and return a pointer to it. Somehow I don't think that's what you want. Robert Ramey "Ariel Brunetto" wrote in message news:c1bd22250804081950k2342e4d1l956cc5c005d605c8@mail.gmail.com... Sorry, but I dont understand. The documentation says that I can serialize a pointer to a Serializable type such as a primitive type. Is this true? Ariel On Tue, Apr 8, 2008 at 7:28 PM, Robert Ramey wrote: binary_object will do it - but you have to create the array by hand. look at using a reference to an array in stead of a pointer. Robert Ramey "Ariel Brunetto" wrote in message news:c1bd22250804081247i4c34489fh5f69a0d0c8595b73@mail.gmail.com... My pointer to a char is actually an array. Is it possible to serialize it in this way? Ariel On Tue, Apr 8, 2008 at 4:54 PM, Robert Ramey wrote: serializing a pointer to a char is will only serialize one char. try serializating either an array of characters or an std::string Robert Ramey "Ariel Brunetto" wrote in message news:c1bd22250804081016m1bf9c734s143a08b9a166a2bb@mail.gmail.com... Hello! My name is Ariel and this is my first time with boost. I spent a few days looking arround the serialization library, and right now I have a project with my first serialized classes. I spent some time reading the documentation and the tutorial. I am having problems serializing pointers. I am trying to serialize a const char* and it seems that doesn't work in the trivial way. This is my code: //----------------------------------------------------------------------------- // myserializeclass.h //----------------------------------------------------------------------------- #include <fstream> #include #include #include //----------------------------------------------------------------------------- class MySerializeClass { private: friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int uiVersion) { ar & m_pChar; } // members to serialize public: char* m_pChar; }; //----------------------------------------------------------------------------- BOOST_CLASS_TRACKING(MySerializeAbstractBase, ::boost::serialization::track_never) //----------------------------------------------------------------------------- //----------------------------------------------------------------------------- // myserializeclass.cpp //----------------------------------------------------------------------------- int main() { MySerializeClass MySerializeClassObject; std::ofstream ofs(akFilename); boost::archive::binary_oarchive oa(ofs); oa << MySerializeClassObject; return 0; } //----------------------------------------------------------------------------- It doesn't compile. I get the following error: 1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\boost\serialization\access.hpp(109) : error C2228: left of '.serialize' must have class/struct/union I know that this is my mistake, but I don't know how to fix it ;). I know that there is a lot of consideration about pointer serialization. Could you point me in the right direction? Thanks in advance! Ariel ---------------------------------------------------------------------- _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users -- ________________ Ariel Brunetto www.aquadize.com -------------------------------------------------------------------------- _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users -- ________________ Ariel Brunetto www.aquadize.com ------------------------------------------------------------------------------ _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users