[Boost-users] serialization library leaks memory in its global object

Subject: [Boost-users] serialization library leaks memory in its global object
From: gast128 (gast128_at_[hidden])
Date: 2009-11-30 08:11:20

Dear all,

we were transferring to Boost 1.41 but came across some serious issues in 
Boost.Serialization. 

The first is already adressed in a previous post, but now the M$ crt reports a 
memory leak when using Boost.Serialization in combination of pointers. I think 
it is located in 'basic_iarchive_impl::load_pointer' where an object is 
allocated and added to a global object ('object_id_vector') but never 
released. 

I know that we might end up here in an argument about the defintion of a 
memory leak, but the fact remains that the crt just reports it on program 
closure and until now we never had any reports of that type. If we have to 
think about every report dumped by the crt, it's just unacceptable. It's like 
a broken window syndrome; in the end u can not distinguish between false and 
correct reports.

Code:

#include <sstream>
#include <boost\smart_ptr\make_shared.hpp>
#include <boost\archive\xml_oarchive.hpp>
#include <boost\archive\xml_iarchive.hpp>

struct Foo
{
    template <class Archive>
    void serialize(Archive& /*ar*/, const unsigned int /*version*/)
    {
    }
};

int main()
{
#ifdef _DEBUG
   _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_CHECK_ALWAYS_DF | 
_CRTDBG_LEAK_CHECK_DF);
#endif

    std::stringstream sstr;
    
    boost::shared_ptr<Foo> ptrFoo = boost::make_shared<Foo>(); 

    {
        boost::archive::xml_oarchive oa(sstr);
        oa << boost::serialization::make_nvp("v", ptrFoo);
    }

    boost::archive::xml_iarchive ia(sstr);
    ia >> boost::serialization::make_nvp("v", ptrFoo);

    return 0;
}