QxOrm  1.4.2
C++ Object Relational Mapping library
is_container_key_value.h
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00001 /****************************************************************************
00002 **
00003 ** http://www.qxorm.com/
00004 ** Copyright (C) 2013 Lionel Marty (contact@qxorm.com)
00005 **
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00018 ** GNU General Public License Usage
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00031 
00032 #ifndef _QX_IS_CONTAINER_KEY_VALUE_H_
00033 #define _QX_IS_CONTAINER_KEY_VALUE_H_
00034 
00035 #ifdef _MSC_VER
00036 #pragma once
00037 #endif
00038 
00046 #include <boost/mpl/if.hpp>
00047 #include <boost/mpl/or.hpp>
00048 #include <boost/mpl/logical.hpp>
00049 
00050 #include <QxTraits/is_container.h>
00051 
00052 namespace qx {
00053 namespace trait {
00054 
00059 template <typename T>
00060 class is_container_key_value
00061 {
00062 
00063 private:
00064 
00065    typedef typename boost::mpl::or_< qx::trait::is_boost_unordered_map<T>, 
00066                                      qx::trait::is_std_map<T>, 
00067                                      qx::trait::is_qt_map<T>, 
00068                                      qx::trait::is_qt_hash<T> >::type cond_is_container_key_value_1;
00069 
00070    typedef typename boost::mpl::or_< typename qx::trait::is_container_key_value<T>::cond_is_container_key_value_1, 
00071                                      qx::trait::is_qt_multi_map<T>, 
00072                                      qx::trait::is_qt_multi_hash<T>, 
00073                                      qx::trait::is_qx_collection<T> >::type cond_is_container_key_value_2;
00074 
00075 #if (defined(_QX_CPP_11_CONTAINER) && !defined(BOOST_NO_CXX11_STD_UNORDERED))
00076 
00077    typedef typename boost::mpl::or_< typename qx::trait::is_container_key_value<T>::cond_is_container_key_value_2, 
00078                                      qx::trait::is_std_unordered_map<T> >::type cond_is_container_key_value_3;
00079 
00080    typedef typename boost::mpl::if_< typename qx::trait::is_container_key_value<T>::cond_is_container_key_value_3, 
00081                                      boost::mpl::true_, 
00082                                      boost::mpl::false_ >::type type_is_container_key_value;
00083 
00084 #else // (defined(_QX_CPP_11_CONTAINER) && !defined(BOOST_NO_CXX11_STD_UNORDERED))
00085 
00086    typedef typename boost::mpl::if_< typename qx::trait::is_container_key_value<T>::cond_is_container_key_value_2, 
00087                                      boost::mpl::true_, 
00088                                      boost::mpl::false_ >::type type_is_container_key_value;
00089 
00090 #endif // (defined(_QX_CPP_11_CONTAINER) && !defined(BOOST_NO_CXX11_STD_UNORDERED))
00091 
00092 public:
00093 
00094    enum { value = (qx::trait::is_container<T>::value && qx::trait::is_container_key_value<T>::type_is_container_key_value::value) };
00095 
00096    typedef typename boost::mpl::if_c<qx::trait::is_container_key_value<T>::value, boost::mpl::true_, boost::mpl::false_>::type type;
00097 
00098 };
00099 
00100 } // namespace trait
00101 } // namespace qx
00102 
00103 #endif // _QX_IS_CONTAINER_KEY_VALUE_H_