QDomElement::text() returns corrupted strings

[sladecek]

Hi,

please explain what is wrong with my code:

#include <QDomDocument>
#include <QFile>
 
int main(int argc, char *argv[])
{
 
  QDomDocument doc;
  QFile file("c:\\bugtest.xml");
  file.open(QIODevice::ReadOnly);
  doc.setContent(&file);
  file.close();
 
  QDomElement docElem = doc.documentElement();
 
  QDomNode n = docElem.firstChild();
  while(!n.isNull()) {
    QDomElement e = n.toElement(); // try to convert the node to an element.
    if(!e.isNull()) {
      if (e.tagName() == "value" && e.hasAttribute("id")) 
      {
        QString id = e.attribute("id");
        QString data = e.text();
      }  /* crash point */
      n = n.nextSibling();
    }
  }
}

#include <QDomDocument>
#include <QFile>

int main(int argc, char *argv[])
{

  QDomDocument doc;
  QFile file("c:\\bugtest.xml");
  file.open(QIODevice::ReadOnly);
  doc.setContent(&file);
  file.close();

  QDomElement docElem = doc.documentElement();

  QDomNode n = docElem.firstChild();
  while(!n.isNull()) {
    QDomElement e = n.toElement(); // try to convert the node to an element.
    if(!e.isNull()) {
      if (e.tagName() == "value" && e.hasAttribute("id")) 
      {
        QString id = e.attribute("id");
        QString data = e.text();
      }  /* crash point */
      n = n.nextSibling();
    }
  }
}

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The code crashes at the point marked, when deleting QString data - heap corrupted.

The document is:

<?xml version="1.0" encoding="utf-8"?>
<data>
  <value id="some_id">Some value</value>
</data>

<?xml version="1.0" encoding="utf-8"?>
<data>
  <value id="some_id">Some value</value>
</data>

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Windows XP, Visual studio 2005, QT 4.5.0-rc1 (also 4.3.5).


Thanks in advance.