QxOrm  1.2.3
C++ Object Relational Mapping library
is_container_key_value.h
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00003 ** http://www.qxorm.com/
00004 ** http://sourceforge.net/projects/qxorm/
00005 ** Original file by Lionel Marty
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00007 ** This file is part of the QxOrm library
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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_KEY_VALUE_H_
00027 #define _QX_IS_CONTAINER_KEY_VALUE_H_
00028 
00029 #ifdef _MSC_VER
00030 #pragma once
00031 #endif
00032 
00040 #include <boost/mpl/if.hpp>
00041 #include <boost/mpl/or.hpp>
00042 #include <boost/mpl/logical.hpp>
00043 
00044 #include <QxTraits/is_container.h>
00045 
00046 namespace qx {
00047 namespace trait {
00048 
00053 template <typename T>
00054 class is_container_key_value
00055 {
00056 
00057 private:
00058 
00059    typedef typename boost::mpl::or_< qx::trait::is_boost_unordered_map<T>, 
00060                                      qx::trait::is_std_map<T>, 
00061                                      qx::trait::is_qt_map<T>, 
00062                                      qx::trait::is_qt_hash<T> >::type cond_is_container_key_value_1;
00063 
00064    typedef typename boost::mpl::or_< typename qx::trait::is_container_key_value<T>::cond_is_container_key_value_1, 
00065                                      qx::trait::is_qt_multi_map<T>, 
00066                                      qx::trait::is_qt_multi_hash<T>, 
00067                                      qx::trait::is_qx_collection<T> >::type cond_is_container_key_value_2;
00068 
00069    typedef typename boost::mpl::if_< typename qx::trait::is_container_key_value<T>::cond_is_container_key_value_2, 
00070                                      boost::mpl::true_, 
00071                                      boost::mpl::false_ >::type type_is_container_key_value;
00072 
00073 public:
00074 
00075    enum { value = (qx::trait::is_container<T>::value && qx::trait::is_container_key_value<T>::type_is_container_key_value::value) };
00076 
00077    typedef typename boost::mpl::if_c<qx::trait::is_container_key_value<T>::value, boost::mpl::true_, boost::mpl::false_>::type type;
00078 
00079 };
00080 
00081 } // namespace trait
00082 } // namespace qx
00083 
00084 #endif // _QX_IS_CONTAINER_KEY_VALUE_H_