#include <QLabel>

#include <QString>
#include <QAnyStringView>

#include <QXmlStreamWriter>

#include <QApplication>

int main(int argc, char *argv[])
{ // UTF-8 encoded string
  static const char teststr[] = "\xe3\x81\x93"; // UTF-8 encoded, u8"こ", first letter of Konnichiwa (hello in Japanese)

  // application
  QApplication app(argc,argv);

  // stream
  QString target; // dummy
  QXmlStreamWriter stream(&target);

  // using UTF-16 encoding
  stream.writeTextElement("1",QString{teststr});
  const bool error1 = stream.hasError();

  // using UTF-8 encoding
  stream.writeTextElement("2",QAnyStringView{teststr});
  const bool error2 = stream.hasError();

  // feedback
  QLabel label(QStringLiteral("%1 %2").arg(error1).arg(error2));
  label.show();

  return QApplication::exec();
}