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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include <QDataStream>
#include <QPair>
#include <QFile>
#include <QVariant>
#include <QDebug>
using CustomPair = QPair<int, int>;
QDataStream &operator<<(QDataStream &ds, CustomPair pd)
{ return ds << pd.first << pd.second; }
QDataStream &operator>>(QDataStream &ds, CustomPair &pd)
{ return ds >> pd.first >> pd.second; }
Q_DECLARE_METATYPE(CustomPair)
int main() {
qRegisterMetaTypeStreamOperators<CustomPair>();
QFile out("typedef.q5");
out.open(QIODevice::ReadWrite);
QDataStream stream(&out);
stream.setVersion(QDataStream::Qt_5_15);
CustomPair p {42, 100};
qDebug() << p.first << p.second;
stream << QVariant::fromValue(p);
}
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