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QxOrm 1.1.8
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_CONTAINER_TO_POD_H_ 00027 #define _QX_IS_CONTAINER_TO_POD_H_ 00028 00029 #ifdef _MSC_VER 00030 #pragma once 00031 #endif 00032 00033 #include <boost/mpl/if.hpp> 00034 #include <boost/mpl/logical.hpp> 00035 00036 #include <QxTraits/is_container.h> 00037 #include <QxTraits/is_qx_pod.h> 00038 00039 namespace qx { 00040 namespace trait { 00041 00042 template <typename T> 00043 class is_container_to_pod 00044 { 00045 00046 private: 00047 00048 template <typename U> 00049 static typename boost::mpl::if_c<qx::trait::is_qx_pod<U>::value, char, int>::type removeContainer(const std::vector<U> &); 00050 00051 template <typename U> 00052 static typename boost::mpl::if_c<qx::trait::is_qx_pod<U>::value, char, int>::type removeContainer(const std::list<U> &); 00053 00054 template <typename U> 00055 static typename boost::mpl::if_c<qx::trait::is_qx_pod<U>::value, char, int>::type removeContainer(const std::set<U> &); 00056 00057 template <typename U> 00058 static typename boost::mpl::if_c<qx::trait::is_qx_pod<U>::value, char, int>::type removeContainer(const QVector<U> &); 00059 00060 template <typename U> 00061 static typename boost::mpl::if_c<qx::trait::is_qx_pod<U>::value, char, int>::type removeContainer(const QList<U> &); 00062 00063 template <typename U> 00064 static typename boost::mpl::if_c<qx::trait::is_qx_pod<U>::value, char, int>::type removeContainer(const QSet<U> &); 00065 00066 template <typename U> 00067 static typename boost::mpl::if_c<qx::trait::is_qx_pod<U>::value, char, int>::type removeContainer(const QLinkedList<U> &); 00068 00069 template <typename U> 00070 static typename boost::mpl::if_c<qx::trait::is_qx_pod<U>::value, char, int>::type removeContainer(const boost::unordered_set<U> &); 00071 00072 template <typename U> 00073 static typename boost::mpl::if_c<qx::trait::is_qx_pod<U>::value, char, int>::type removeContainer(const boost::unordered_multiset<U> &); 00074 00075 static int removeContainer(...); 00076 static T t; 00077 00078 public: 00079 00080 enum { value = (qx::trait::is_container<T>::value && (sizeof(qx::trait::is_container_to_pod<T>::removeContainer(t)) == sizeof(char))) }; 00081 00082 typedef typename boost::mpl::if_c<qx::trait::is_container_to_pod<T>::value, boost::mpl::true_, boost::mpl::false_>::type type; 00083 00084 }; 00085 00086 } // namespace trait 00087 } // namespace qx 00088 00089 #endif // _QX_IS_CONTAINER_TO_POD_H_