Getting Segmentation Fault with TinyXML

Question

I currently have an XML file which I'm parsing using TinyXML. The top of my XML file look as so :

<Classroom>12
    <ClassName>name</ClassName>
    ...
</Classroom>

I'm attempting to access the text in ClassName. I am currently getting a segmentation fault using this:

TiXmlDocument doc;
doc.LoadFile(file);
TiXmlHandle  handle(&doc);

TiXmlElement * child = handle.FirstChild().FirstChild().ToElement();
cout<<child->GetText();

What am I doing wrong?

Thanks!

Answer 1

1. The first call to FirstChild() returns a TiXmlElement representing the first <Classroom>
2. The second call to FirstChild() returns a TiXmlText representing the text "12"
3. TiXmlText does not override the ToElement() function, therefore using the base class's ToElement() function, which returns NULL.

You can change your code to the following:

TiXmlElement * child = handle.FirstChild("Classroom").FirstChild("ClassName").ToElement();