/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise License Agreement provided with the 
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QTCONCURRENT_COMPILERTEST_H
#define QTCONCURRENT_COMPILERTEST_H

#include <QtCore/qglobal.h>

#ifndef QT_NO_CONCURRENT

QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE

QT_MODULE(Core)

#if defined (Q_CC_MSVC) && (_MSC_VER < 1300)
#  define QT_TYPENAME
#else
#  define QT_TYPENAME typename
#endif

namespace QtPrivate {

template<class T>
class HasResultType {
    typedef char Yes;
    typedef void *No;
    template<typename U> static Yes test(int, const typename U::result_type * = 0);
    template<typename U> static No test(double);
public:
    enum { Value = (sizeof(test<T>(0)) == sizeof(Yes)) };
};

}

QT_END_NAMESPACE
QT_END_HEADER

#endif // QT_NO_CONCURRENT

#endif
