QTemporaryFile and his destructor

[SABROG]

I have strange behaviour when using QTemporaryFile. Temp files don't delete with this code when i exit from console program from Ctr+C or click on _[]"X" (Windows):

#include <QtCore/QtGlobal>
#include <QtCore/QtDebug>
#include <QtCore/QCoreApplication>
#include <QtCore/QTemporaryFile>
 
int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    QTemporaryFile file(QLatin1String("mytemp"));
 
    if (file.open()) {
         qDebug() << file.fileName();
    }
    return a.exec(); // if i change this to "return 0;" all be ok
}

#include <QtCore/QtGlobal>
#include <QtCore/QtDebug>
#include <QtCore/QCoreApplication>
#include <QtCore/QTemporaryFile>

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
    QTemporaryFile file(QLatin1String("mytemp"));

    if (file.open()) {
         qDebug() << file.fileName();
    }
    return a.exec(); // if i change this to "return 0;" all be ok
}

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and this code works fine:

#include <QtCore/QtGlobal>
#include <QtCore/QtDebug>
#include <QtCore/QCoreApplication>
#include <QtCore/QTemporaryFile>
 
static QTemporaryFile file(QLatin1String("mytemp"));
 
int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);
 
    if (file.open()) {
         qDebug() << file.fileName();
    }
 
    return a.exec();
}

#include <QtCore/QtGlobal>
#include <QtCore/QtDebug>
#include <QtCore/QCoreApplication>
#include <QtCore/QTemporaryFile>

static QTemporaryFile file(QLatin1String("mytemp"));

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    if (file.open()) {
         qDebug() << file.fileName();
    }

    return a.exec();
}

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[wysota]

If you kill the application, it is aborted immediately so no destructors are called. You can intercept those situations if you want and act accordingly.

[SABROG]

But why destructors calling when i use static global variable?

[wysota]

I don't know. They shouldn't be. Unless Qt installs some handler for its QObjects but I doubt it.