How to print QString containing line breaks using qDebug

Question

This code:

QString output(\"test1\\ntest2\");
qDebug() << output;

leads to this output:

\"test1\\ntest2\"


        

Answer 1

qDebug() is meant for debugging purposes, so it escapes non-printable characters and adds quotes when printing QString, QByteArray, QChar arguments.

Try using qDebug().noquote() as this disables escaping non-printable characters, like this:

QString output("test1\ntest2");
qDebug().noquote() << output;

Warning:

qDebug(), qInfo(), qWarning(), qCritical() and qFatal() are all provided for debugging purposes. They are not meant to display something to the user in production code.

Please, don't use these methods unless you are printing/logging some debug statements.