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Teuchos_getBaseObjVoidPtr.hpp
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41 
42 #ifndef TEUCHOS_GET_BASE_OBJ_VOID_PTR_HPP
43 #define TEUCHOS_GET_BASE_OBJ_VOID_PTR_HPP
44 
45 
47 #include "Teuchos_ConfigDefs.hpp"
48 
49 
50 #if defined(HAVE_TEUCHOSCORE_CXX11)
51 # define HAS_TEUCHOS_GET_BASE_OBJ_VOID_PTR 1
52 # include <type_traits>
53 #elif defined(HAVE_TEUCHOSCORE_BOOST) && defined(HAVE_TEUCHOSCORE_BOOST_IS_POLYMORPHIC)
54 # define HAS_TEUCHOS_GET_BASE_OBJ_VOID_PTR 1
55 # include <boost/type_traits/is_polymorphic.hpp>
56 #endif
57 
58 
59 namespace Teuchos {
60 
61 
62 #ifdef HAS_TEUCHOS_GET_BASE_OBJ_VOID_PTR
63 
64 
65 template<bool isPolymorphic, typename T>
66 class GetBaseObjVoidPtrImpl {};
67 
68 template<typename T>
69 class GetBaseObjVoidPtrImpl<true, T> {
70 public:
71  static const void* getBaseObjVoidPtr(T *p)
72  {
73  return dynamic_cast<const void*>(p);
74  }
75 };
76 
77 
78 template<typename T>
79 class GetBaseObjVoidPtrImpl<false, T> {
80 public:
81  static const void* getBaseObjVoidPtr(T *p)
82  {
83  return static_cast<const void*>(p);
84  }
85 };
86 
87 
104 template<typename T>
105 const void* getBaseObjVoidPtr(T *p)
106 {
107 #if defined(HAVE_TEUCHOSCORE_CXX11)
108  const bool isPoly = std::is_polymorphic<T>::value;
109 #elif defined(HAVE_TEUCHOSCORE_BOOST) && defined(HAVE_TEUCHOSCORE_BOOST_IS_POLYMORPHIC)
110  const bool isPoly = boost::is_polymorphic<T>::value;
111 #endif
112  typedef GetBaseObjVoidPtrImpl<isPoly, T> GBOVPT;
113  return GBOVPT::getBaseObjVoidPtr(p);
114 }
115 
116 
117 #endif // HAS_TEUCHOS_GET_BASE_OBJ_VOID_PTR
118 
119 
120 } // end namespace Teuchos
121 
122 
123 #endif // TEUCHOS_GET_BASE_OBJ_VOID_PTR_HPP
Teuchos header file which uses auto-configuration information to include necessary C++ headers...