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Teuchos_getBaseObjVoidPtr.hpp
1// @HEADER
2// ***********************************************************************
3//
4// Teuchos: Common Tools Package
5// Copyright (2004) Sandia Corporation
6//
7// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
8// license for use of this work by or on behalf of the U.S. Government.
9//
10// Redistribution and use in source and binary forms, with or without
11// modification, are permitted provided that the following conditions are
12// met:
13//
14// 1. Redistributions of source code must retain the above copyright
15// notice, this list of conditions and the following disclaimer.
16//
17// 2. Redistributions in binary form must reproduce the above copyright
18// notice, this list of conditions and the following disclaimer in the
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20//
21// 3. Neither the name of the Corporation nor the names of the
22// contributors may be used to endorse or promote products derived from
23// this software without specific prior written permission.
24//
25// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
26// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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37// Questions? Contact Michael A. Heroux (maherou@sandia.gov)
38//
39// ***********************************************************************
40// @HEADER
41
42#ifndef TEUCHOS_GET_BASE_OBJ_VOID_PTR_HPP
43#define TEUCHOS_GET_BASE_OBJ_VOID_PTR_HPP
44
45
46#include "TeuchosCore_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
59namespace Teuchos {
60
61
62#ifdef HAS_TEUCHOS_GET_BASE_OBJ_VOID_PTR
63
64
65template<bool isPolymorphic, typename T>
66class GetBaseObjVoidPtrImpl {};
67
68template<typename T>
69class GetBaseObjVoidPtrImpl<true, T> {
70public:
71 static const void* getBaseObjVoidPtr(T *p)
72 {
73 return dynamic_cast<const void*>(p);
74 }
75};
76
77
78template<typename T>
79class GetBaseObjVoidPtrImpl<false, T> {
80public:
81 static const void* getBaseObjVoidPtr(T *p)
82 {
83 return static_cast<const void*>(p);
84 }
85};
86
87
104template<typename T>
105const 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.
The Teuchos namespace contains all of the classes, structs and enums used by Teuchos,...