On 03/07/2016 09:19 AM, Sina Dogru wrote:
2016-03-07 15:51 GMT+02:00 william.croc...@analog.com
<mailto:william.croc...@analog.com> <william.croc...@analog.com
<mailto:william.croc...@analog.com>>:
Some tool kits use a buffer in their version of QDataStream.
You can not in general be sure that anything has actually been
written to 'bai' here because 'out' is still alive.
So I would be sure if I write it in a block I guess?
You did not address my other two observations.
> You are reading an 'int' but you did not insure that an 'int' was written.
> You wrote a QByteArray, but are then reading a QString.
int main(int argc, char *argv[])
{
QFile file("file.dat");
{
// module A creates a byte array
QByteArray bai;
QDataStream out(&bai, QIODevice::WriteOnly);
out << QString("A QString"); // writes some information on it
// passing bai to module A
// module A do something...
file.open(QIODevice::WriteOnly);
QDataStream out2(&file); // and module A write those datas to a file.
out2 << bai.size();
out2 << bai;
}
// and module B starts
if (file.isOpen())
file.close();
file.open(QIODevice::ReadOnly);
QDataStream in(&file);
QString str;
int a; // extracts size information
in >> a >> str; // extracts QString
qDebug() << str << a; // output: "" 22
return 0;
}
But it also gives the same output. Or am I misunderstood?
Thank you
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