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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
//! [0]
class Number {
public:
Number(double n) : num (n) { }
void setNumber(double n) { num = n; }
double number() const { return num; }
private:
double num;
};
//! [0]
//! [1]
void calcSquare(Number *num)
{
QMutexLocker locker(mutexpool.get(num));
num.setNumber(num.number() * num.number());
}
//! [1]
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