Detatch Document / Node?

[Georg Grabler]

Hello everyone.

I've a small problem concerning reading / appending to a document.

I've an existing TiXmlDocument, and get (socket transfer) another XML file, which i need to append in a special part in the tree.

Currently, i'm using another document to parse the incoming string, appending it to the "real" document.

Now, i have a memory leak everyone knows: I append the RootNode to the "real" document. The temporary document still exists. Now, when i delete the temporary document, i destroy the real document tree. When i dont delete the temporary document, i have created a new memory leak...

Any suggestions?

[Georg Grabler]

In between i have implemented the following experimental function:

void TiXmlNode::Detach()
{
    next->prev = prev;
    prev->next = next;
    return this;
}

This basically works. It detaches any node in the tree (till now quite properly as far as i could test that). So i can just link the node i get returned (the node which got detached of the other document) to my 2nd doc.

[Ellers]

Can you reproduce/show the problem in a small block of code?
Cheers
Ellers

[Georg Grabler]

TiXmlDocument *doc = new TiXmlDocument();
    TiXmlNode *response = doc->LinkEndChild (new TiXmlElement ("response"));
    response->ToElement()->SetAttribute ("type", "save");
    response->ToElement()->SetAttribute ("requestid", requestid);
    TiXmlNode *status = response->LinkEndChild (new TiXmlElement ("status"));

status->LinkEndChild (new TiXmlText ("OK"));
            TiXmlNode* pageid = response->LinkEndChild (new TiXmlElement ("pageid"));
            pageid->ToElement()->SetAttribute("old",pageID);
            pageid->ToElement()->SetAttribute("db",lastid);
TiXmlDocument *tmpdoc = new TiXmlDocument();
                    tmpdoc->Parse (x.c_str());

                    if (string(tmpdoc->RootElement()->FirstChild("status")->FirstChild()->Value()) != "failed")
                    {
                        pageid->LinkEndChild (tmpdoc->RootElement()->FirstChild("status")->NextSibling("articleid")->Detach());
                        delete tmpdoc;
                    }

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

TiXmlNode* TiXmlNode::Detach()
{
    if (next)
        next->prev = prev;
    if (prev)
        prev->next = next;
    if (parent->FirstChild() == this)
        parent->firstChild=next;
    return this;
}

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

Basically, i need to delete a party of the document i get back from tmpstr, since i dont want to append all the document. So i need to detach it, deleting new document.