core/addressof.hpp
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1 // Copyright (C) 2002 Brad King (brad.king@kitware.com)
2 // Douglas Gregor (gregod@cs.rpi.edu)
3 //
4 // Copyright (C) 2002, 2008, 2013 Peter Dimov
5 //
6 // Distributed under the Boost Software License, Version 1.0. (See
7 // accompanying file LICENSE_1_0.txt or copy at
8 // http://www.boost.org/LICENSE_1_0.txt)
9 
10 // For more information, see http://www.boost.org
11 
12 #ifndef BOOST_CORE_ADDRESSOF_HPP
13 #define BOOST_CORE_ADDRESSOF_HPP
14 
15 # include <boost/config.hpp>
17 # include <cstddef>
18 
19 namespace boost
20 {
21 
22 namespace detail
23 {
24 
25 template<class T> struct addr_impl_ref
26 {
27  T & v_;
28 
30  BOOST_FORCEINLINE operator T& () const { return v_; }
31 
32 private:
34 };
35 
36 template<class T> struct addressof_impl
37 {
38  static BOOST_FORCEINLINE T * f( T & v, long )
39  {
40  return reinterpret_cast<T*>(
41  &const_cast<char&>(reinterpret_cast<const volatile char &>(v)));
42  }
43 
44  static BOOST_FORCEINLINE T * f( T * v, int )
45  {
46  return v;
47  }
48 };
49 
50 #if !defined( BOOST_NO_CXX11_NULLPTR )
51 
52 #if !defined( BOOST_NO_CXX11_DECLTYPE ) && ( ( defined( __clang__ ) && !defined( _LIBCPP_VERSION ) ) || defined( __INTEL_COMPILER ) )
53 
54  typedef decltype(nullptr) addr_nullptr_t;
55 
56 #else
57 
58  typedef std::nullptr_t addr_nullptr_t;
59 
60 #endif
61 
62 template<> struct addressof_impl< addr_nullptr_t >
63 {
64  typedef addr_nullptr_t T;
65 
66  static BOOST_FORCEINLINE T * f( T & v, int )
67  {
68  return &v;
69  }
70 };
71 
72 template<> struct addressof_impl< addr_nullptr_t const >
73 {
74  typedef addr_nullptr_t const T;
75 
76  static BOOST_FORCEINLINE T * f( T & v, int )
77  {
78  return &v;
79  }
80 };
81 
82 template<> struct addressof_impl< addr_nullptr_t volatile >
83 {
84  typedef addr_nullptr_t volatile T;
85 
86  static BOOST_FORCEINLINE T * f( T & v, int )
87  {
88  return &v;
89  }
90 };
91 
92 template<> struct addressof_impl< addr_nullptr_t const volatile >
93 {
94  typedef addr_nullptr_t const volatile T;
95 
96  static BOOST_FORCEINLINE T * f( T & v, int )
97  {
98  return &v;
99  }
100 };
101 
102 #endif
103 
104 } // namespace detail
105 
106 template<class T>
108 T * addressof( T & v )
109 {
110 #if (defined( __BORLANDC__ ) && BOOST_WORKAROUND( __BORLANDC__, BOOST_TESTED_AT( 0x610 ) ) ) || (defined(__SUNPRO_CC) && BOOST_WORKAROUND(__SUNPRO_CC, <= 0x5120))
111 
113 
114 #else
115 
117 
118 #endif
119 }
120 
121 #if defined( __SUNPRO_CC ) && BOOST_WORKAROUND( __SUNPRO_CC, BOOST_TESTED_AT( 0x590 ) )
122 
123 namespace detail
124 {
125 
126 template<class T> struct addressof_addp
127 {
128  typedef T * type;
129 };
130 
131 } // namespace detail
132 
133 template< class T, std::size_t N >
136 {
137  return &t;
138 }
139 
140 #endif
141 
142 // Borland doesn't like casting an array reference to a char reference
143 // but these overloads work around the problem.
144 #if defined( __BORLANDC__ ) && BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
145 template<typename T,std::size_t N>
147 T (*addressof(T (&t)[N]))[N]
148 {
149  return reinterpret_cast<T(*)[N]>(&t);
150 }
151 
152 template<typename T,std::size_t N>
154 const T (*addressof(const T (&t)[N]))[N]
155 {
156  return reinterpret_cast<const T(*)[N]>(&t);
157 }
158 #endif
159 
160 } // namespace boost
161 
162 #endif // BOOST_CORE_ADDRESSOF_HPP
BOOST_FORCEINLINE T * addressof(T &v)
BOOST_MOVE_USE_STANDARD_LIBRARY_MOVE.
addr_impl_ref & operator=(const addr_impl_ref &)
static BOOST_FORCEINLINE T * f(T &v, long)
static BOOST_FORCEINLINE T * f(T &v, int)
GLdouble t
detail namespace with internal helper functions
Definition: json.hpp:269
static BOOST_FORCEINLINE T * f(T *v, int)
BOOST_FORCEINLINE addr_impl_ref(T &v)
GLenum type
#define BOOST_FORCEINLINE
Definition: suffix.hpp:583
std::nullptr_t addr_nullptr_t
GLdouble v
static BOOST_FORCEINLINE T * f(T &v, int)


librealsense2
Author(s): LibRealSense ROS Team
autogenerated on Thu Dec 22 2022 03:41:41