[Interest] QSettings: is a group present? Crash with qWarning.

[Samuel Gaist]

Hi,

Looks like your on mac, trying on mine I get this at compilation time:

warning: cannot pass objects of non-POD type 'class QBool' through '...'; call will abort at runtime

Here is the why of your crash

Hope it helps
Samuel

On 23 août 2012, at 16:51, Sensei wrote:

> Hi everyone.
> 
> Here's again a question, this time on QSettings with INI files. The 
> question is simple: how do I know if a group exists in my INI file?
> 
> Well, I could ask for all groups with childGroups(), and use the 
> contains("theGroupName") method.
> 
> Except that I don't know why this crashes when used inside a qWarning. 
> This is the very simple INI file:
> 
> 
> 
> [first]
> item=2
> 
> [last]
> size=1
> 
> 
> 
> 
> This is the super simple code I've written:
> 
> 
> 
> #include <QSettings>
> #include <QStringList>
> 
> int main(int argc, char *argv[])
> {	
> 	QSettings s("/Users/sensei/Desktop/proj.txp", QSettings::IniFormat);
> 
> 	bool x = s.childGroups().contains("first");
> 	qWarning("Number of groups: %d", s.childGroups().size());
> 	qWarning("Contains [first]: %d", x); // OK
> 	qWarning("Contains [first]: %d", s.childGroups().contains("first")); // 
> BOOM!
> 
> 	return 0;
> }
> 
> 
> and your .pro file:
> 
> TEMPLATE = app
> SOURCES += main.cpp
> 
> 
> 
> 
> I don't know why this happens. Any hints? I might be missing something 
> SO obvious...
> 
> 
> Cheers!
> 
> 
> 
> 
> PS. My environment is OSX 10.8, the qt installation is the one that I 
> installed on the previous OSX version. Qt is 4.8.0 (the SDK Maintenance 
> Tool says I have no updates available).
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