QxOrm 1.1.6
C++ Object Relational Mapping library
is_container_to_pod.h
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00003 ** http://www.qxorm.com/
00004 ** http://sourceforge.net/projects/qxorm/
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00013 ** GNU Lesser General Public License Usage
00014 ** This file must be used under the terms of the GNU Lesser
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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_
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