/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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 will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
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** $QT_END_LICENSE$
**
****************************************************************************/
#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