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QxOrm 1.1.9
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_SMART_PTR_TO_POD_H_ 00027 #define _QX_IS_SMART_PTR_TO_POD_H_ 00028 00029 #ifdef _MSC_VER 00030 #pragma once 00031 #endif 00032 00040 #include <boost/mpl/if.hpp> 00041 #include <boost/mpl/logical.hpp> 00042 00043 #include <QxTraits/is_smart_ptr.h> 00044 #include <QxTraits/is_qx_pod.h> 00045 00046 namespace qx { 00047 namespace trait { 00048 00053 template <typename T> 00054 class is_smart_ptr_to_pod 00055 { 00056 00057 private: 00058 00059 template <typename U> 00060 static typename boost::mpl::if_c<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const boost::scoped_ptr<U> &); 00061 00062 template <typename U> 00063 static typename boost::mpl::if_c<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const boost::shared_ptr<U> &); 00064 00065 template <typename U> 00066 static typename boost::mpl::if_c<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const boost::weak_ptr<U> &); 00067 00068 template <typename U> 00069 static typename boost::mpl::if_c<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const boost::intrusive_ptr<U> &); 00070 00071 template <typename U> 00072 static typename boost::mpl::if_c<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const QSharedDataPointer<U> &); 00073 00074 template <typename U> 00075 static typename boost::mpl::if_c<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const QSharedPointer<U> &); 00076 00077 template <typename U> 00078 static typename boost::mpl::if_c<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const QWeakPointer<U> &); 00079 00080 template <typename U> 00081 static typename boost::mpl::if_c<qx::trait::is_qx_pod<U>::value, char, int>::type removeSmartPtr(const qx::dao::ptr<U> &); 00082 00083 static int removeSmartPtr(...); 00084 static T t; 00085 00086 public: 00087 00088 enum { value = (qx::trait::is_smart_ptr<T>::value && (sizeof(qx::trait::is_smart_ptr_to_pod<T>::removeSmartPtr(t)) == sizeof(char))) }; 00089 00090 typedef typename boost::mpl::if_c<qx::trait::is_smart_ptr_to_pod<T>::value, boost::mpl::true_, boost::mpl::false_>::type type; 00091 00092 }; 00093 00094 } // namespace trait 00095 } // namespace qx 00096 00097 #endif // _QX_IS_SMART_PTR_TO_POD_H_