CODEWITHSUNDEEP
qt
daniels
daniels

Reputation: 19203

Qt QByteArray issue

I've tried the following:

qDebug() << QByteArray("\x00\x10\x00\x00").size();

and i get 0 instead of 4 witch i would espect.

What would be a good data type to hold this 4 bytes of data as i need to later write them to a socket so they must remain exactly like you see them above?

Upvotes: 1

Views: 1324

Answers (1)

Giuseppe Cardone
Giuseppe Cardone

Reputation: 5393

The constructor QByteArray(const char* str) uses qstrlen on the argument. Since your string starts with a 0x00 byte, qstrlen returns 0, thus the resulting QByteArray is 0 bytes long.

To avoid the qstrlen check, use the QByteArray(const char* str, int size) constructor:

qDebug() << QByteArray("\x00\x10\x00\x00", 4).size();

will print 4 as you expect.

Upvotes: 4

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