QxOrm  1.3.2
C++ Object Relational Mapping library
is_smart_ptr.h
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00031 
00032 #ifndef _QX_IS_SMART_PTR_H_
00033 #define _QX_IS_SMART_PTR_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_boost_intrusive_ptr.h>
00051 #include <QxTraits/is_boost_scoped_ptr.h>
00052 #include <QxTraits/is_boost_shared_ptr.h>
00053 #include <QxTraits/is_boost_weak_ptr.h>
00054 #include <QxTraits/is_qt_shared_data_ptr.h>
00055 #include <QxTraits/is_qt_scoped_ptr.h>
00056 #include <QxTraits/is_qt_shared_ptr.h>
00057 #include <QxTraits/is_qt_weak_ptr.h>
00058 #include <QxTraits/is_qx_dao_ptr.h>
00059 #include <QxTraits/is_std_unique_ptr.h>
00060 #include <QxTraits/is_std_shared_ptr.h>
00061 #include <QxTraits/is_std_weak_ptr.h>
00062 
00063 namespace qx {
00064 namespace trait {
00065 
00070 template <typename T>
00071 class is_smart_ptr
00072 {
00073 
00074 private:
00075 
00076    typedef typename boost::mpl::or_< qx::trait::is_qx_dao_ptr<T>, 
00077                                      qx::trait::is_boost_intrusive_ptr<T>, 
00078                                      qx::trait::is_boost_scoped_ptr<T>, 
00079                                      qx::trait::is_boost_shared_ptr<T>, 
00080                                      qx::trait::is_boost_weak_ptr<T> >::type cond_is_boost_smart_ptr;
00081 
00082    typedef typename boost::mpl::or_< typename qx::trait::is_smart_ptr<T>::cond_is_boost_smart_ptr, 
00083                                      qx::trait::is_qt_scoped_ptr<T>, 
00084                                      qx::trait::is_qt_shared_ptr<T>, 
00085                                      qx::trait::is_qt_weak_ptr<T>, 
00086                                      qx::trait::is_qt_shared_data_ptr<T> >::type cond_is_qt_smart_ptr;
00087 
00088 #if (defined(_QX_CPP_11_SMART_PTR) && !defined(BOOST_NO_CXX11_SMART_PTR))
00089 
00090    typedef typename boost::mpl::or_< typename qx::trait::is_smart_ptr<T>::cond_is_qt_smart_ptr, 
00091                                      qx::trait::is_std_unique_ptr<T>, 
00092                                      qx::trait::is_std_shared_ptr<T>, 
00093                                      qx::trait::is_std_weak_ptr<T> >::type cond_is_std_smart_ptr;
00094 
00095    typedef typename boost::mpl::if_< typename qx::trait::is_smart_ptr<T>::cond_is_std_smart_ptr, 
00096                                      boost::mpl::true_, 
00097                                      boost::mpl::false_ >::type type_is_smart_ptr;
00098 
00099 #else // (defined(_QX_CPP_11_SMART_PTR) && !defined(BOOST_NO_CXX11_SMART_PTR))
00100 
00101    typedef typename boost::mpl::if_< typename qx::trait::is_smart_ptr<T>::cond_is_qt_smart_ptr, 
00102                                      boost::mpl::true_, 
00103                                      boost::mpl::false_ >::type type_is_smart_ptr;
00104 
00105 #endif // (defined(_QX_CPP_11_SMART_PTR) && !defined(BOOST_NO_CXX11_SMART_PTR))
00106 
00107 public:
00108 
00109    enum { value = qx::trait::is_smart_ptr<T>::type_is_smart_ptr::value };
00110 
00111    typedef typename qx::trait::is_smart_ptr<T>::type_is_smart_ptr type;
00112 
00113 };
00114 
00115 } // namespace trait
00116 } // namespace qx
00117 
00118 #endif // _QX_IS_SMART_PTR_H_