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QxOrm
1.2.8
C++ Object Relational Mapping library
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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_SMART_PTR_BASE_OF_H_ 00033 #define _QX_IS_SMART_PTR_BASE_OF_H_ 00034 00035 #ifdef _MSC_VER 00036 #pragma once 00037 #endif 00038 00046 #include <boost/mpl/if.hpp> 00047 #include <boost/mpl/logical.hpp> 00048 #include <boost/type_traits/is_base_of.hpp> 00049 00050 #include <QxTraits/is_smart_ptr.h> 00051 00052 #define qx_smart_ptr_base_of_test_0() (sizeof(qx::trait::is_smart_ptr_base_of<B, D>::removeSmartPtr(b, d)) == sizeof(char)) 00053 #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)) 00054 #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)) 00055 #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)) 00056 #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)) 00057 #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)) 00058 #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)) 00059 #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)) 00060 #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)) 00061 00062 #define qx_smart_ptr_base_of_all_test() \ 00063 qx_smart_ptr_base_of_test_1() || qx_smart_ptr_base_of_test_2() || qx_smart_ptr_base_of_test_3() || \ 00064 qx_smart_ptr_base_of_test_4() || qx_smart_ptr_base_of_test_5() || qx_smart_ptr_base_of_test_6() || \ 00065 qx_smart_ptr_base_of_test_7() || qx_smart_ptr_base_of_test_8() 00066 00067 namespace qx { 00068 namespace trait { 00069 00074 template <typename B, typename D> 00075 class is_smart_ptr_base_of 00076 { 00077 00078 private: 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::scoped_ptr<V> &, const boost::scoped_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::shared_ptr<V> &, const boost::shared_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 boost::weak_ptr<V> &, const boost::weak_ptr<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 boost::intrusive_ptr<V> &, const boost::intrusive_ptr<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 QSharedDataPointer<V> &, const QSharedDataPointer<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 QSharedPointer<V> &, const QSharedPointer<W> &); 00097 00098 template <typename V, typename W> 00099 static typename boost::mpl::if_c<boost::is_base_of<V, W>::value, char, int>::type removeSmartPtr(const QWeakPointer<V> &, const QWeakPointer<W> &); 00100 00101 template <typename V, typename W> 00102 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> &); 00103 00104 static int removeSmartPtr(...); 00105 static B b; 00106 static D d; 00107 00108 static boost::scoped_ptr<B> * b_boost_scoped_ptr; 00109 static boost::shared_ptr<B> * b_boost_shared_ptr; 00110 static boost::weak_ptr<B> * b_boost_weak_ptr; 00111 static boost::intrusive_ptr<B> * b_boost_intrusive_ptr; 00112 static QSharedDataPointer<B> * b_qt_shared_data_ptr; 00113 static QSharedPointer<B> * b_qt_shared_ptr; 00114 static QWeakPointer<B> * b_qt_weak_ptr; 00115 static qx::dao::ptr<B> * b_qx_dao_ptr; 00116 00117 enum { value_0 = (qx::trait::is_smart_ptr<D>::value) }; 00118 enum { value_1 = (qx::trait::is_smart_ptr<B>::value) }; 00119 enum { value_2 = ((value_0 && value_1) ? qx_smart_ptr_base_of_test_0() : 0) }; 00120 enum { value_3 = ((value_0 && ! value_1) ? qx_smart_ptr_base_of_all_test() : 0) }; 00121 00122 public: 00123 00124 enum { value = (qx::trait::is_smart_ptr_base_of<B, D>::value_2 || qx::trait::is_smart_ptr_base_of<B, D>::value_3) }; 00125 00126 typedef typename boost::mpl::if_c<qx::trait::is_smart_ptr_base_of<B, D>::value, boost::mpl::true_, boost::mpl::false_>::type type; 00127 00128 }; 00129 00130 } // namespace trait 00131 } // namespace qx 00132 00133 #endif // _QX_IS_SMART_PTR_BASE_OF_H_