Hello I have the following Problem:

xerces shut down my programm when it wants to output an non existing node, 
here an exmple.
I want to read out the text of the elements.

<xml>
        <element_a >test</element_a>
        <element_b />test</element_b>
</xml>

The source code:

DOMNodeList* nodes = 
root->getElementsByTagName(XMLString:transcode("elementa"));

  cout << nodes->item(0)->getTextContent() << endl;

This code makes no Problem while i ask for elemts which are in the xmlfile 
below, but if i ask for element_c which is not in the xml file the code 
before exit my programm  by reaching the code line 
 nodes->item(0)->getTextContent().

I have also tried to get out if the pointer is empty or there is no nodes 
with nodes->getlength() , but also here xerces is closing down my programm 
without an error message.

If someone had an idea where the problem ist or how i can solve the 
problem please write it to me

Thanks David 

P.S I hope you understand my problem

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