Memleak while writing xml file

[Hugo van den Brand <h vd brand gmail com>]

L.S.

I'm using the libxml++-2.6 wrapper in a C++ program that runs a simulation (include with gtkmm-2.4)
At the start of every simulation I write the settings to an xml file.
However, while doing this I noticed that every time I run a new Simulation additional memory is required (about 404 kb).

I use the following code and I wonder if I'm missing something:


short SimulationWriter::write_xmlfile(string i_filename)
{
    {   // Check whether the file can be opened.
        fstream fin;
        fin.open(i_filename.c_str(),ios::out);
        bool not_opened=!(fin.is_open());
        fin.close();
        if (not_opened)
            return 1;; // Failure opening the file for writing.
    }
    xmlpp::Document xmldoc;
    // Add the root node
    xmlpp::Element* pe_root=xmldoc.create_root_node("simulation");
    // Add all members to the simulation node
    add_simulation_members(pe_root);
    // Write the file 
    xmldoc.write_to_file_formatted(i_filename,"ISO-8859-1");
}

When I comment from xmlpp::Document ... to the end I don't experience the memory leak.
Am I missing some clean-up code or is there something else happening?

Any help would be really appreciated.

Best wishes,
Hugo van den Brand