QFile as an argument of a function?

[Santosh Reddy]

just return empty list

if(!file1.open(QIODevice::ReadOnly))
    {
        QMessageBox::critical(m_openFile, "Warning", "Open a file please");
        return list;
    }

if(!file1.open(QIODevice::ReadOnly))
    {
        QMessageBox::critical(m_openFile, "Warning", "Open a file please");
        return list;
    }

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