[Development] Read binary file

[Yuriy Rusinov]

Dear colleagues !

I have to read binary file via Qt. In console application I make


    FILE * fid5 = fopen ("./test_data/source.rgg", "rb");

    ...
    for (int i=1; i<=na; i++)
    {
        fread (st+i-1, sizeof (unsigned long), nd2, fid5);
        ...
    }

and all work fine. In Qt application I try
    QString fileName = QFileDialog::getOpenFileName (this, tr("Select
source file"), QDir::currentPath(), tr("All files (*)"));
    if (fileName.isEmpty())
        return;
    ...

    QFile * fData = new QFile (fileName);

    for (int i=1; i<=na; i++)
    {
        char * colData = new char [nd2*sizeof (unsigned long)];
        qint64 colLength = fData->readLine (colData, nd2*sizeof
(unsigned long));
        if (colLength < 0)
        {
            qDebug () << __PRETTY_FUNCTION__ << QString ("Read error");
            continue;
        }
        QByteArray buff (colData);
        delete [] colData;
        //qDebug () << __PRETTY_FUNCTION__ << i << buff;

        QBuffer lBuf (&buff);
        lBuf.open (QIODevice::ReadOnly);
        QDataStream numStr (&lBuf);
        quint64 num;
        for (int ii=0; ii<nd2; ii++)
        {
            numStr >> num;
            qDebug () << __PRETTY_FUNCTION__ << num;
            st[ii] = num;
        }
        ...
    }

And for the same file in debug numbers do not read properly.
Thanks a lot.

-- 
Best regards,
Sincerely yours,
Yuriy Rusinov.