[Boost-users] [serialization - newbie] serializing multiple objects in one archive

Subject: [Boost-users] [serialization - newbie] serializing multiple objects in one archive
From: Soumen (soumen78_at_[hidden])
Date: 2009-08-04 02:04:57

Hi,

I've to serialize and deserialize multiple objects. Can I serialize them in
one archive and deserialize from the same correctly? Say something like
following is my save/restore function:

void save(boost::archive::binary_oarchive &archive)
{
    string version = tool.getversion();
    MyData *data = MyData::instance();
    MyDifferentData *differentData = MyDifferentData::instance();

    if (data && differentData) {
         archive << version;
         archive << data;
         archive << differentData;
    }
}

void restore(boost::archive::binary_iarchive &archive)
{
    string version = tool.getversion();
    string serializedToolversion;

    MyData::cleanup();
    MyDifferentData::cleanup();

    archive >> serializedToolVersion;

    if (version == serializedToolVersion) {
         archive >> (MyData *) MyData::instance();
         archive >> (MyDifferentData *) MyDifferentData::instance();
    }
}

Or do I need to serialize each of these into different archives? 

Regards,
~ Soumen

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