QList and QVariant crashes with VS2010

[ZHawk]

Hi,

i have Qt 4.7.1 and VS2010 Express

the following code crashes with no reason:

#include "QApplication"
#include <QtCore>
 
void test( )
{
	QVariant v, v2;
	QList<QVariant> list;
	v.setValue(1); // init variant with integer = 1
	list.append(v); // add variant to list
	v2.setValue(list); // add list to variant
	qDebug() << v;
	qDebug() << list;
	qDebug() << v2;
// leaving this function will crash with a corrupted heap
// output see below
}
 
int main( int argc , char *argv[] )
{
	test();
	QApplication app(argc, argv);
	return app.exec();
}

#include "QApplication"
#include <QtCore>

void test( )
{
	QVariant v, v2;
	QList<QVariant> list;
	v.setValue(1); // init variant with integer = 1
	list.append(v); // add variant to list
	v2.setValue(list); // add list to variant
	qDebug() << v;
	qDebug() << list;
	qDebug() << v2;
// leaving this function will crash with a corrupted heap
// output see below
}

int main( int argc , char *argv[] )
{
	test();
	QApplication app(argc, argv);
	return app.exec();
}

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my output:

QVariant(int, 1) 
(QVariant(int, 1) )  
QVariant(QVariantList, (QVariant(int, 1) )  )

QVariant(int, 1) 
(QVariant(int, 1) )  
QVariant(QVariantList, (QVariant(int, 1) )  )

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after the crash it points me to "qguivariant.cpp" line 280:

qcoreVariantHandler()->clear(d);

qcoreVariantHandler()->clear(d);

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any help ?
thanks