Clean TiXmlElement and TiXmlText in C++

[Jupiter]

Hi,

I am using C++ for tinyxml. when to write an XML document file, I create the node by TiXmlElement* node new TiXmlElement and TiXmlText* text = new TiXmlText, should both node and text be cleaned up by calling delete node or delete text when a class destructor is called?

In fact, I've got Segmentation Fault when trying to delete those created object. What I am missing here?

Thank you.

Kind Regards,

[Carlos Bernard]

To clean up TiXmlElement and TiXmlText objects in C++, you can follow these general guidelines. In the TinyXML library, objects like TiXmlElement and TiXmlText are usually allocated dynamically, so memory management and proper deletion are necessary to avoid memory leaks.

Here’s a quick example:

cpp
Copy code

include "tinyxml.h"

void CleanXmlElement(TiXmlElement element) {
if (element) {
// Delete all child elements recursively
TiXmlElement child = element->FirstChildElement();
while (child) {
TiXmlElement* nextChild = child->NextSiblingElement();
CleanXmlElement(child);
delete child;
child = nextChild;
}

    // Remove and delete all text nodes
    TiXmlText* text = element->FirstChild()->ToText();
    while (text) {
        TiXmlText* nextText = text->NextSibling()->ToText();
        delete text;
        text = nextText;
    }
}

}

int main() {
// Example usage
TiXmlDocument doc;
doc.LoadFile("example.xml");

TiXmlElement* root = doc.RootElement();
if (root) {
    CleanXmlElement(root);
}

return 0;

}
Explanation:
CleanXmlElement: This recursive function deletes each child element of a TiXmlElement and any TiXmlText nodes.
Deleting Text Nodes: ToText() converts nodes to TiXmlText type, which is necessary for directly deleting text content associated with an element.
Memory Management: delete is used to manually manage and release memory for each dynamically created TiXmlElement and TiXmlText.
Note: Always ensure you have a good understanding of object ownership in TinyXML to avoid double deletion or memory leaks.