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QxOrm
1.2.3
C++ Object Relational Mapping library
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00001 /**************************************************************************** 00002 ** 00003 ** http://www.qxorm.com/ 00004 ** http://sourceforge.net/projects/qxorm/ 00005 ** Original file by Lionel Marty 00006 ** 00007 ** This file is part of the QxOrm library 00008 ** 00009 ** This software is provided 'as-is', without any express or implied 00010 ** warranty. In no event will the authors be held liable for any 00011 ** damages arising from the use of this software. 00012 ** 00013 ** GNU Lesser General Public License Usage 00014 ** This file must be used under the terms of the GNU Lesser 00015 ** General Public License version 2.1 as published by the Free Software 00016 ** Foundation and appearing in the file 'license.lgpl.txt' included in the 00017 ** packaging of this file. Please review the following information to 00018 ** ensure the GNU Lesser General Public License version 2.1 requirements 00019 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. 00020 ** 00021 ** If you have questions regarding the use of this file, please contact : 00022 ** contact@qxorm.com 00023 ** 00024 ****************************************************************************/ 00025 00026 #ifndef _QX_IS_BOOST_SHARED_PTR_H_ 00027 #define _QX_IS_BOOST_SHARED_PTR_H_ 00028 00029 #ifdef _MSC_VER 00030 #pragma once 00031 #endif 00032 00040 #include <boost/shared_ptr.hpp> 00041 #include <boost/mpl/if.hpp> 00042 #include <boost/mpl/logical.hpp> 00043 00044 namespace qx { 00045 namespace trait { 00046 00051 template <typename T> 00052 class is_boost_shared_ptr 00053 { 00054 00055 private: 00056 00057 template <typename V> static char isSmartPtr(boost::shared_ptr<V>); 00058 static int isSmartPtr(...); 00059 static T t; 00060 00061 public: 00062 00063 enum { value = (sizeof(qx::trait::is_boost_shared_ptr<T>::isSmartPtr(t)) == sizeof(char)) }; 00064 00065 typedef typename boost::mpl::if_c<qx::trait::is_boost_shared_ptr<T>::value, 00066 boost::mpl::true_, 00067 boost::mpl::false_>::type type; 00068 00069 }; 00070 00071 } // namespace trait 00072 } // namespace qx 00073 00074 #endif // _QX_IS_BOOST_SHARED_PTR_H_