forked from qt-creator/qt-creator
70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
/**************************************************************************
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**
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** This file is part of Qt Creator
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**
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** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** No Commercial Usage
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**
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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**
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**************************************************************************/
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#include <boost/optional.hpp>
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#include <string>
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using namespace boost;
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struct Large
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{
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Large() { d1 = d2 = d3 = d4 = d5 = 0; }
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double d1;
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double d2;
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double d3;
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double d4;
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double d5;
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};
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void testOptional()
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{
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optional<int> i;
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optional<double> d;
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optional<Large> l;
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optional<std::string &> sr;
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optional<std::string> s;
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std::string as = "hallo";
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i = 1;
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sr = as;
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s = as;
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l = Large();
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i = 2;
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i = 3;
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}
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int main()
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{
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testOptional();
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}
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