Details
-
Bug
-
Resolution: Done
-
P2: Important
-
5.12.4, 5.13.0
-
None
-
65f9646583d74c97aab7f8ea90197e370d7bfede (qt/qtbase/5.12)
Description
QCborStreamReader(QIODevice * dev) should move the dev pos to the end of the message after it reads the message, but it doesn't.
The following code shows the problem:
QBuffer buff;
buff.open(QIODevice::ReadWrite);
QCborStreamWriter writer(&buff);
writer.startMap();
writer.append(0);
writer.append("Hi");
writer.append(1);
writer.append(0xffff);
writer.append(2);
writer.append(1.23);
writer.endMap();
auto oldPos = buff.pos();
qDebug() << buff.pos();
buff.seek(0);
QCborStreamReader reader(&buff);
QCborValue map = QCborValue::fromCbor(reader);
if (reader.isLengthKnown())
qDebug() << "length" << reader.length();
qDebug() << oldPos << buff.pos() << (reader.lastError() == QCborError::NoError) << map[0].toString() << map[1].toInteger() << map[2].toDouble();
Q_ASSERT(oldPos == buff.pos());
The output of the previous code is:
20 length 18446744073709551615 20 5 false "Hi" 65535 1.23 ASSERT: "oldPos == buff.pos()" in file ../testStreaming/main.cpp, line 31