QxOrm  1.2.6
C++ Object Relational Mapping library
is_container_base_of.h
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00031 
00032 #ifndef _QX_IS_CONTAINER_BASE_OF_H_
00033 #define _QX_IS_CONTAINER_BASE_OF_H_
00034 
00035 #ifdef _MSC_VER
00036 #pragma once
00037 #endif
00038 
00039 #include <boost/mpl/if.hpp>
00040 #include <boost/mpl/logical.hpp>
00041 #include <boost/type_traits/is_base_of.hpp>
00042 
00043 #include <QxTraits/is_container.h>
00044 
00045 #define qx_container_base_of_test_0() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer(b, d)) == sizeof(char))
00046 #define qx_container_base_of_test_1() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer((* b_std_vector), d)) == sizeof(char))
00047 #define qx_container_base_of_test_2() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer((* b_std_list), d)) == sizeof(char))
00048 #define qx_container_base_of_test_3() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer((* b_std_set), d)) == sizeof(char))
00049 #define qx_container_base_of_test_4() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer((* b_qt_vector), d)) == sizeof(char))
00050 #define qx_container_base_of_test_5() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer((* b_qt_list), d)) == sizeof(char))
00051 #define qx_container_base_of_test_6() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer((* b_qt_set), d)) == sizeof(char))
00052 #define qx_container_base_of_test_7() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer((* b_qt_linked_list), d)) == sizeof(char))
00053 #define qx_container_base_of_test_8() (sizeof(qx::trait::is_container_base_of<B, D>::removeContainer((* b_boost_unordered_set), d)) == sizeof(char))
00054 #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))
00055 
00056 #define qx_container_base_of_all_test() \
00057 qx_container_base_of_test_1() || qx_container_base_of_test_2() || qx_container_base_of_test_3() || \
00058 qx_container_base_of_test_4() || qx_container_base_of_test_5() || qx_container_base_of_test_6() || \
00059 qx_container_base_of_test_7() || qx_container_base_of_test_8() || qx_container_base_of_test_9()
00060 
00061 namespace qx {
00062 namespace trait {
00063 
00064 template <typename B, typename D>
00065 class is_container_base_of
00066 {
00067 
00068 private:
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::vector<V> &, const std::vector<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 std::list<V> &, const std::list<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 std::set<V> &, const std::set<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 QVector<V> &, const QVector<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 QList<V> &, const QList<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 QSet<V> &, const QSet<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 QLinkedList<V> &, const QLinkedList<W> &);
00090 
00091    template <typename V, typename W>
00092    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> &);
00093 
00094    template <typename V, typename W>
00095    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> &);
00096 
00097    static int removeContainer(...);
00098    static B b;
00099    static D d;
00100 
00101    static std::vector<B> * b_std_vector;
00102    static std::list<B> * b_std_list;
00103    static std::set<B> * b_std_set;
00104    static QVector<B> * b_qt_vector;
00105    static QList<B> * b_qt_list;
00106    static QSet<B> * b_qt_set;
00107    static QLinkedList<B> * b_qt_linked_list;
00108    static boost::unordered_set<B> * b_boost_unordered_set;
00109    static boost::unordered_multiset<B> * b_boost_unordered_multi_set;
00110 
00111    enum { value_0 = (qx::trait::is_container<D>::value) };
00112    enum { value_1 = (qx::trait::is_container<B>::value) };
00113    enum { value_2 = ((value_0 && value_1) ? qx_container_base_of_test_0() : 0) };
00114    enum { value_3 = ((value_0 && ! value_1) ? qx_container_base_of_all_test() : 0) };
00115 
00116 public:
00117 
00118    enum { value = (qx::trait::is_container_base_of<B, D>::value_2 || qx::trait::is_container_base_of<B, D>::value_3) };
00119 
00120    typedef typename boost::mpl::if_c<qx::trait::is_container_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_CONTAINER_BASE_OF_H_