CODEWITHSUNDEEP
c++qt
Paddre
Paddre

Reputation: 828

How to print QString containing line breaks using qDebug

This code:

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

leads to this output:

"test1\ntest2"

What I want is:

"test1
test2"

So how can I use qDebug() (and similar output functions) to print a QString containing line break characters in multiple lines?

Upvotes: 16

Views: 15506

Answers (1)

Mike
Mike

Reputation: 8355

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.

Upvotes: 35

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