1 // Copyright (C) 2002 Brad King (brad.king@kitware.com)
2 // Douglas Gregor (gregod@cs.rpi.edu)
4 // Copyright (C) 2002, 2008 Peter Dimov
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)
10 // For more information, see http://www.boost.org
12 #ifndef BOOST_UTILITY_ADDRESSOF_HPP
13 # define BOOST_UTILITY_ADDRESSOF_HPP
15 # include <boost/config.hpp>
16 # include <boost/detail/workaround.hpp>
24 template<class T> struct addressof_impl
26 static inline T * f( T & v, long )
28 return reinterpret_cast<T*>(
29 &const_cast<char&>(reinterpret_cast<const volatile char &>(v)));
32 static inline T * f( T * v, int )
40 template<class T> T * addressof( T & v )
42 return boost::detail::addressof_impl<T>::f( v, 0 );
45 // Borland doesn't like casting an array reference to a char reference
46 // but these overloads work around the problem.
47 # if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
48 template<typename T,std::size_t N>
49 T (*addressof(T (&t)[N]))[N]
51 return reinterpret_cast<T(*)[N]>(&t);
54 template<typename T,std::size_t N>
55 const T (*addressof(const T (&t)[N]))[N]
57 return reinterpret_cast<const T(*)[N]>(&t);
63 #endif // BOOST_UTILITY_ADDRESSOF_HPP