Qt_IM_13 - 8BitsCoding/RobotMentor GitHub Wiki

#include <QtCore/QCoreApplication>

#include <qiodevice.h>
#include <qbuffer.h>
#include <qdebug.h>

int main(int argc, char *argv[])
{
	QCoreApplication a(argc, argv);

	QBuffer buffer;

	if (buffer.open(QIODevice::ReadWrite)) {
		qInfo() << "Buffer Opened!";
		QByteArray data("Hello world!");

		for (int i = 0; i < 5; i++) {
			buffer.write(data);
			buffer.write("\r\n");
		}

		// File and device access you may need to flush the data to the device
		// buffer.flush();

		// Move to the first position
		buffer.seek(0);

		qInfo() << buffer.readAll();
		qInfo() << "closing the buffer";

		// ALWAYS close your device
		buffer.close();
	}
	else {
		qInfo() << "Could not open buffer!!!";
	}

	return a.exec();
}