Virtual destructor is missing

[anonymous]

The destructor of polymorphic_xml_oarchive gets never called when deleted through polymorphic_oarchive. I posted this to the users list and Robert Ramey already had a solution but it seems to not have made it into 1.34.1 :-(

The result of this is a memory leak and a missing </boost_serialization> tag at the end of the stringstream in the following example:

#include <iostream>
#include <sstream>

#include <boost/archive/polymorphic_oarchive.hpp>
#include <boost/archive/polymorphic_xml_oarchive.hpp>

void main(int argc, char** argv)
{
	std::ostringstream buffer;

	boost::archive::polymorphic_oarchive* archive_interface;
	archive_interface = new boost::archive::polymorphic_xml_oarchive(buffer);
	delete archive_interface;

	buffer.flush();
	std::cout << buffer.str();
}