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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_SMART_PTR_BASE_OF_H_ 00027 #define _QX_IS_SMART_PTR_BASE_OF_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 #include <boost/type_traits/is_base_of.hpp> 00043 00044 #include <QxTraits/is_smart_ptr.h> 00045 00046 #define qx_smart_ptr_base_of_test_0() (sizeof(qx::trait::is_smart_ptr_base_of<B, D>::removeSmartPtr(b, d)) == sizeof(char)) 00047 #define qx_smart_ptr_base_of_test_1() (sizeof(qx::trait::is_smart_ptr_base_of<B, D>::removeSmartPtr((* b_boost_scoped_ptr), d)) == sizeof(char)) 00048 #define qx_smart_ptr_base_of_test_2() (sizeof(qx::trait::is_smart_ptr_base_of<B, D>::removeSmartPtr((* b_boost_shared_ptr), d)) == sizeof(char)) 00049 #define qx_smart_ptr_base_of_test_3() (sizeof(qx::trait::is_smart_ptr_base_of<B, D>::removeSmartPtr((* b_boost_weak_ptr), d)) == sizeof(char)) 00050 #define qx_smart_ptr_base_of_test_4() (sizeof(qx::trait::is_smart_ptr_base_of<B, D>::removeSmartPtr((* b_boost_intrusive_ptr), d)) == sizeof(char)) 00051 #define qx_smart_ptr_base_of_test_5() (sizeof(qx::trait::is_smart_ptr_base_of<B, D>::removeSmartPtr((* b_qt_shared_data_ptr), d)) == sizeof(char)) 00052 #define qx_smart_ptr_base_of_test_6() (sizeof(qx::trait::is_smart_ptr_base_of<B, D>::removeSmartPtr((* b_qt_shared_ptr), d)) == sizeof(char)) 00053 #define qx_smart_ptr_base_of_test_7() (sizeof(qx::trait::is_smart_ptr_base_of<B, D>::removeSmartPtr((* b_qt_weak_ptr), d)) == sizeof(char)) 00054 #define qx_smart_ptr_base_of_test_8() (sizeof(qx::trait::is_smart_ptr_base_of<B, D>::removeSmartPtr((* b_qx_dao_ptr), d)) == sizeof(char)) 00055 00056 #define qx_smart_ptr_base_of_all_test() \ 00057 qx_smart_ptr_base_of_test_1() || qx_smart_ptr_base_of_test_2() || qx_smart_ptr_base_of_test_3() || \ 00058 qx_smart_ptr_base_of_test_4() || qx_smart_ptr_base_of_test_5() || qx_smart_ptr_base_of_test_6() || \ 00059 qx_smart_ptr_base_of_test_7() || qx_smart_ptr_base_of_test_8() 00060 00061 namespace qx { 00062 namespace trait { 00063 00068 template <typename B, typename D> 00069 class is_smart_ptr_base_of 00070 { 00071 00072 private: 00073 00074 template <typename V, typename W> 00075 static typename boost::mpl::if_c<boost::is_base_of<V, W>::value, char, int>::type removeSmartPtr(const boost::scoped_ptr<V> &, const boost::scoped_ptr<W> &); 00076 00077 template <typename V, typename W> 00078 static typename boost::mpl::if_c<boost::is_base_of<V, W>::value, char, int>::type removeSmartPtr(const boost::shared_ptr<V> &, const boost::shared_ptr<W> &); 00079 00080 template <typename V, typename W> 00081 static typename boost::mpl::if_c<boost::is_base_of<V, W>::value, char, int>::type removeSmartPtr(const boost::weak_ptr<V> &, const boost::weak_ptr<W> &); 00082 00083 template <typename V, typename W> 00084 static typename boost::mpl::if_c<boost::is_base_of<V, W>::value, char, int>::type removeSmartPtr(const boost::intrusive_ptr<V> &, const boost::intrusive_ptr<W> &); 00085 00086 template <typename V, typename W> 00087 static typename boost::mpl::if_c<boost::is_base_of<V, W>::value, char, int>::type removeSmartPtr(const QSharedDataPointer<V> &, const QSharedDataPointer<W> &); 00088 00089 template <typename V, typename W> 00090 static typename boost::mpl::if_c<boost::is_base_of<V, W>::value, char, int>::type removeSmartPtr(const QSharedPointer<V> &, const QSharedPointer<W> &); 00091 00092 template <typename V, typename W> 00093 static typename boost::mpl::if_c<boost::is_base_of<V, W>::value, char, int>::type removeSmartPtr(const QWeakPointer<V> &, const QWeakPointer<W> &); 00094 00095 template <typename V, typename W> 00096 static typename boost::mpl::if_c<boost::is_base_of<V, W>::value, char, int>::type removeSmartPtr(const qx::dao::ptr<V> &, const qx::dao::ptr<W> &); 00097 00098 static int removeSmartPtr(...); 00099 static B b; 00100 static D d; 00101 00102 static boost::scoped_ptr<B> * b_boost_scoped_ptr; 00103 static boost::shared_ptr<B> * b_boost_shared_ptr; 00104 static boost::weak_ptr<B> * b_boost_weak_ptr; 00105 static boost::intrusive_ptr<B> * b_boost_intrusive_ptr; 00106 static QSharedDataPointer<B> * b_qt_shared_data_ptr; 00107 static QSharedPointer<B> * b_qt_shared_ptr; 00108 static QWeakPointer<B> * b_qt_weak_ptr; 00109 static qx::dao::ptr<B> * b_qx_dao_ptr; 00110 00111 enum { value_0 = (qx::trait::is_smart_ptr<D>::value) }; 00112 enum { value_1 = (qx::trait::is_smart_ptr<B>::value) }; 00113 enum { value_2 = ((value_0 && value_1) ? qx_smart_ptr_base_of_test_0() : 0) }; 00114 enum { value_3 = ((value_0 && ! value_1) ? qx_smart_ptr_base_of_all_test() : 0) }; 00115 00116 public: 00117 00118 enum { value = (qx::trait::is_smart_ptr_base_of<B, D>::value_2 || qx::trait::is_smart_ptr_base_of<B, D>::value_3) }; 00119 00120 typedef typename boost::mpl::if_c<qx::trait::is_smart_ptr_base_of<B, D>::value, boost::mpl::true_, boost::mpl::false_>::type type; 00121 00122 }; 00123 00124 } // namespace trait 00125 } // namespace qx 00126 00127 #endif // _QX_IS_SMART_PTR_BASE_OF_H_