[Qt-interest] QString doesn't print anything with qDebug

[John McClurkin]

Anisha Kaul wrote:
> Hello again,
> 
> My XML file is filled with relevant data like this:
> 
> <?xml version="1.0"?>                                                                    
> 
> <CONFIGINFO>
> 
>         <ABC>
>                 <portNM>3794</portNM>
>                 <timoutPeriod>10</timoutPeriod>
>         </ABC> 
> 
> ....
> 
> I wrote a small code to print the tag names, and no characters EXCEPT THE SPACES get shown up when I run it.
> The relevant (successfully compiled) code is presented here:
> _____________________________________________________________________________________________
> XmlFileReader :: XmlFileReader (string xmlFileName)
> {   
>     QFile                   *objQFile    = new QFile ("config.xml");
>     if (objQFile->open (QIODevice :: ReadOnly) == false)
>     {
>             cout << "\nError: Unable to open the XML file! Verify the file's existence and permissions\n\n";
>             exit (0);
>     }
> 
>     QXmlStreamReader        objQXmlReader (objQFile);
> 
>     QXmlStreamReader :: TokenType token = objQXmlReader.readNext();
>     QXmlStreamReader :: TokenType token = objQXmlReader.readNext();
> 
>     QString s = objQXmlReader.readElementText ();
>    
>     qDebug("--- %s ---",s.toAscii().data());
>     qDebug("%s", qPrintable(s));
> 
>     QXmlStreamReader :: TokenType token2 = objQXmlReader.readNext();
> 
>     QString s2 = objQXmlReader.readElementText ();
>     qDebug("--- %s ---",s2.toAscii().data());
>     qDebug("%s", qPrintable(s2));
> }
> _____________________________________________________________________________________________
> 
> Please see if someone can guide me on this.
> -Anisha
> 
> 
> 
> 
> -------------------------------------
> Hi-Tech Gears Limited, Gurgaon, India
> 
> 
> 
The fact that spaces, but nothing else, are printed suggests that your 
OS interprets those characters as non-printable. You might try writing 
your debug statements to a binary file and look at that file with a 
binary editor to see what's actually being sent through qDebug.