/****************************************************************************

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the test suite of the Qt Toolkit.

**

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** No Commercial Usage

** This file contains pre-release code and may not be distributed.

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

** General Public License version 2.1 as published by the Free Software

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

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**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

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****************************************************************************/

#ifndef FUNCTIONS_H

#define FUNCTIONS_H

bool keepEvenIntegers(const int &x)

{

    return (x & 1) == 0;

}

class KeepEvenIntegers

{

public:

    bool operator()(const int &x)

    {

        return (x & 1) == 0;

    }

};

class Number

{

    int n;

public:

    Number()

        : n(0)

    { }

    Number(int n)

        : n(n)

    { }

    void multiplyBy2()

    {

        n *= 2;

    }

    Number multipliedBy2() const

    {

        return n * 2;

    }

    bool isEven() const

    {

        return (n & 1) == 0;

    }

    int toInt() const

    {

        return n;

    }

    QString toString() const

    {

        return QString::number(n);

    }

    bool operator==(const Number &other) const

    {

        return n == other.n;

    }

};

void intSumReduce(int &sum, int x)

{

    sum += x;

}

class IntSumReduce

{

public:

    void operator()(int &sum, int x)

    {

        sum += x;

    }

};

void numberSumReduce(int &sum, const Number &x)

{

    sum += x.toInt();

}

class NumberSumReduce

{

public:

    void operator()(int &sum, const Number &x)

    {

        sum += x.toInt();

    }

};

#endif