How to print string literal and QString with qDebug?
You can use the following: qDebug().nospace() << “abc” << qPrintable(s) << “def”; The nospace() is to avoid printing out spaces after every argument (which is default for qDebug()).
qdebug
How to call qDebug without the appended spaces and newline?
It would be best to understand how QDebug works internally. That way you can easily modify it to suit your needs. Whenever you use the qDebug() function, it returns a QDebug object. By default QDebug always outputs a space after any use of operator <<. The QDebug class internally contains a QString. Every time you … Read more
How to redirect qDebug, qWarning, qCritical etc output?
You’ve to install a message handler using qInstallMessageHandler function, and then, you can use QTextStream to write the debug message to a file. Here is a sample example: #include <QtGlobal> #include <stdio.h> #include <stdlib.h> void myMessageOutput(QtMsgType type, const QMessageLogContext &context, const QString &msg) { QByteArray localMsg = msg.toLocal8Bit(); switch (type) { case QtDebugMsg: fprintf(stderr, “Debug: … Read more