| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the test suite of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL-EXCEPT$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
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| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| #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 |