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#include <QDir>
#include <iostream>

int main(int argc, char *argv[])
{
    QDir dir;
    dir.setFilter(QDir::Files | QDir::Hidden | QDir::NoSymLinks);
    dir.setSorting(QDir::Size | QDir::Reversed);

//! [0]
    filters = QStringList()
    filters << "*.cpp" << "*.cxx" << "*.cc"
    dir.setNameFilters(filters)
//! [0]

    QFileInfoList list = dir.entryInfoList();
    std::cout << "     Bytes Filename" << std::endl;
    for (int i = 0; i < list.size(); ++i) {
        QFileInfo fileInfo = list.at(i);
        std::cout << qPrintable(QString("%1 %2").arg(fileInfo.size(), 10)
                                                .arg(fileInfo.fileName()));
        std::cout << std::endl;
    }
    return 0;
}