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is_container_base_of.h
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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_BASE_OF_H_
    00027 #define _QX_IS_CONTAINER_BASE_OF_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 #include <boost/type_traits/is_base_of.hpp>
    00036
    00037 #include <QxTraits/is_container.h>
    00038
    00039 #define qx_container_base_of_test_0() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer(b, d)) == sizeof(char))
    00040 #define qx_container_base_of_test_1() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer((* b_std_vector), d)) == sizeof(char))
    00041 #define qx_container_base_of_test_2() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer((* b_std_list), d)) == sizeof(char))
    00042 #define qx_container_base_of_test_3() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer((* b_std_set), d)) == sizeof(char))
    00043 #define qx_container_base_of_test_4() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer((* b_qt_vector), d)) == sizeof(char))
    00044 #define qx_container_base_of_test_5() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer((* b_qt_list), d)) == sizeof(char))
    00045 #define qx_container_base_of_test_6() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer((* b_qt_set), d)) == sizeof(char))
    00046 #define qx_container_base_of_test_7() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer((* b_qt_linked_list), d)) == sizeof(char))
    00047 #define qx_container_base_of_test_8() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer((* b_boost_unordered_set), d)) == sizeof(char))
    00048 #define qx_container_base_of_test_9() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer((* b_boost_unordered_multi_set), d)) == sizeof(char))
    00049
    00050 #define qx_container_base_of_all_test() \
    00051 qx_container_base_of_test_1() || qx_container_base_of_test_2() || qx_container_base_of_test_3() || \
    00052 qx_container_base_of_test_4() || qx_container_base_of_test_5() || qx_container_base_of_test_6() || \
    00053 qx_container_base_of_test_7() || qx_container_base_of_test_8() || qx_container_base_of_test_9()
    00054
    00055 namespace qx {
    00056 namespace trait {
    00057
    00058 template <typename B, typename D>
    00059 class is_container_base_of
    00060 {
    00061
    00062 private:
    00063
    00064    template <typename V, typename W>
    00065    static typename boost::mpl::if_c<boost::is_base_of<V, W>::value, char, int>::type removeContainer(const std::vector<V> &, const std::vector<W> &);
    00066
    00067    template <typename V, typename W>
    00068    static typename boost::mpl::if_c<boost::is_base_of<V, W>::value, char, int>::type removeContainer(const std::list<V> &, const std::list<W> &);
    00069
    00070    template <typename V, typename W>
    00071    static typename boost::mpl::if_c<boost::is_base_of<V, W>::value, char, int>::type removeContainer(const std::set<V> &, const std::set<W> &);
    00072
    00073    template <typename V, typename W>
    00074    static typename boost::mpl::if_c<boost::is_base_of<V, W>::value, char, int>::type removeContainer(const QVector<V> &, const QVector<W> &);
    00075
    00076    template <typename V, typename W>
    00077    static typename boost::mpl::if_c<boost::is_base_of<V, W>::value, char, int>::type removeContainer(const QList<V> &, const QList<W> &);
    00078
    00079    template <typename V, typename W>
    00080    static typename boost::mpl::if_c<boost::is_base_of<V, W>::value, char, int>::type removeContainer(const QSet<V> &, const QSet<W> &);
    00081
    00082    template <typename V, typename W>
    00083    static typename boost::mpl::if_c<boost::is_base_of<V, W>::value, char, int>::type removeContainer(const QLinkedList<V> &, const QLinkedList<W> &);
    00084
    00085    template <typename V, typename W>
    00086    static typename boost::mpl::if_c<boost::is_base_of<V, W>::value, char, int>::type removeContainer(const boost::unordered_set<V> &, const boost::unordered_set<W> &);
    00087
    00088    template <typename V, typename W>
    00089    static typename boost::mpl::if_c<boost::is_base_of<V, W>::value, char, int>::type removeContainer(const boost::unordered_multiset<V> &, const boost::unordered_multiset<W> &);
    00090
    00091    static int removeContainer(...);
    00092    static B b;
    00093    static D d;
    00094
    00095    static std::vector<B> * b_std_vector;
    00096    static std::list<B> * b_std_list;
    00097    static std::set<B> * b_std_set;
    00098    static QVector<B> * b_qt_vector;
    00099    static QList<B> * b_qt_list;
    00100    static QSet<B> * b_qt_set;
    00101    static QLinkedList<B> * b_qt_linked_list;
    00102    static boost::unordered_set<B> * b_boost_unordered_set;
    00103    static boost::unordered_multiset<B> * b_boost_unordered_multi_set;
    00104
    00105    enum { value_0 = (qx::trait::is_container<D>::value) };
    00106    enum { value_1 = (qx::trait::is_container<B>::value) };
    00107    enum { value_2 = ((value_0 && value_1) ? qx_container_base_of_test_0() : 0) };
    00108    enum { value_3 = ((value_0 && ! value_1) ? qx_container_base_of_all_test() : 0) };
    00109
    00110 public:
    00111
    00112    enum { value = (qx::trait::is_container_base_of<B, D>::value_2 || qx::trait::is_container_base_of<B, D>::value_3) };
    00113
    00114    typedef typename boost::mpl::if_c<qx::trait::is_container_base_of<B, D>::value, boost::mpl::true_, boost::mpl::false_>::type type;
    00115
    00116 };
    00117
    00118 } // namespace trait
    00119 } // namespace qx
    00120
    00121 #endif // _QX_IS_CONTAINER_BASE_OF_H_

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