QxOrm  1.2.9
C++ Object Relational Mapping library
is_qt_linked_list.h
Go to the documentation of this file.
00001 /****************************************************************************
00002 **
00003 ** http://www.qxorm.com/
00004 ** Copyright (C) 2013 Lionel Marty (contact@qxorm.com)
00005 **
00006 ** This file is part of the QxOrm library
00007 **
00008 ** This software is provided 'as-is', without any express or implied
00009 ** warranty. In no event will the authors be held liable for any
00010 ** damages arising from the use of this software
00011 **
00012 ** Commercial Usage
00013 ** Licensees holding valid commercial QxOrm licenses may use this file in
00014 ** accordance with the commercial license agreement provided with the
00015 ** Software or, alternatively, in accordance with the terms contained in
00016 ** a written agreement between you and Lionel Marty
00017 **
00018 ** GNU General Public License Usage
00019 ** Alternatively, this file may be used under the terms of the GNU
00020 ** General Public License version 3.0 as published by the Free Software
00021 ** Foundation and appearing in the file 'license.gpl3.txt' included in the
00022 ** packaging of this file. Please review the following information to
00023 ** ensure the GNU General Public License version 3.0 requirements will be
00024 ** met : http://www.gnu.org/copyleft/gpl.html
00025 **
00026 ** If you are unsure which license is appropriate for your use, or
00027 ** if you have questions regarding the use of this file, please contact :
00028 ** contact@qxorm.com
00029 **
00030 ****************************************************************************/
00031 
00032 #ifndef _QX_IS_QT_LINKED_LIST_H_
00033 #define _QX_IS_QT_LINKED_LIST_H_
00034 
00035 #ifdef _MSC_VER
00036 #pragma once
00037 #endif
00038 
00046 #include <QtCore/qlinkedlist.h>
00047 
00048 #include <boost/mpl/if.hpp>
00049 #include <boost/mpl/logical.hpp>
00050 
00051 namespace qx {
00052 namespace trait {
00053 
00058 template <typename T>
00059 class is_qt_linked_list
00060 {
00061 
00062 private:
00063 
00064    template <typename V> static char isContainer(const QLinkedList<V> &);
00065    static int isContainer(...);
00066    static T t;
00067 
00068 public:
00069 
00070    enum { value = (sizeof(qx::trait::is_qt_linked_list<T>::isContainer(t)) == sizeof(char)) };
00071 
00072    typedef typename boost::mpl::if_c<qx::trait::is_qt_linked_list<T>::value, 
00073                                      boost::mpl::true_, 
00074                                      boost::mpl::false_>::type type;
00075 
00076 };
00077 
00078 } // namespace trait
00079 } // namespace qx
00080 
00081 #endif // _QX_IS_QT_LINKED_LIST_H_