How to output all QByteArray data in hex with qDebug()?

bigguiness

Hello,

I'm trying to debug some code using QByteArray. When I try to output the data with qDebug() I get something like this:

code:
    QByteArray ba.resize(5);
    ba[0] = 0x02;
    ba[1] = 0x00;
    ba[2] = 0x07;
    ba[3] = 0x61;
    ba[4] = 0x01;
    qDebug() << ba;

output:
"\x02\x00\x07"a"\x01"

Is there anyway to make the qDebug() output show the ASCII characters in hex also? I was expecting the output to look like:

output:
"\x02\x00\x07\x61\x01"

Thanks

Christian Ehrlicher

@bigguiness said in How to output all QByteArray data in hex with qDebug()?:

Is there anyway to make the qDebug()

I can find something at https://doc.qt.io/qt-6/qtextstream.html#qtextstream-manipulators so you have to convert it by yourself.

hskoglund

Yes as @Christian-Ehrlicher says you'll have to add some code sprinkles yourself, say you do the qDebug() line like this:

qDebug().noquote() << "\\x" + ba.toHex(' ').replace(" ","\\x");

bigguiness

@hskoglund Thanks!

Kent-Dorfman

std::ostirngstream out;
out << hex << 0x01U << 0x02U << 0x03U;
qDebug << out.str().c_str();

use ostringtream since it will take stream conversion manipulators, and then output the str() value to qDebug