// Copyright (C) 2002 Brad King (brad.king@kitware.com)
-// Doug Gregor (gregod@cs.rpi.edu)
-// Peter Dimov
+// Douglas Gregor (gregod@cs.rpi.edu)
//
-// Permission to copy, use, sell and distribute this software is granted
-// provided this copyright notice appears in all copies.
-// Permission to modify the code and to distribute modified code is granted
-// provided this copyright notice appears in all copies, and a notice
-// that the code was modified is included with the copyright notice.
+// Copyright (C) 2002, 2008 Peter Dimov
//
-// This software is provided "as is" without express or implied warranty,
-// and with no claim as to its suitability for any purpose.
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
// For more information, see http://www.boost.org
# include <boost/config.hpp>
# include <boost/detail/workaround.hpp>
-# if BOOST_WORKAROUND(BOOST_MSVC, == 1300)
-# include <boost/type_traits/add_pointer.hpp>
-# endif
-namespace boost {
+namespace boost
+{
-// Do not make addressof() inline. Breaks MSVC 7. (Peter Dimov)
+namespace detail
+{
-// VC7 strips const from nested classes unless we add indirection here
-# if BOOST_WORKAROUND(BOOST_MSVC, == 1300)
-template <typename T> typename add_pointer<T>::type
-# else
-template <typename T> T*
-# endif
-addressof(T& v)
+template<class T> struct addressof_impl
+{
+ static inline T * f( T & v, long )
+ {
+ return reinterpret_cast<T*>(
+ &const_cast<char&>(reinterpret_cast<const volatile char &>(v)));
+ }
+
+ static inline T * f( T * v, int )
+ {
+ return v;
+ }
+};
+
+} // namespace detail
+
+template<class T> T * addressof( T & v )
{
- return reinterpret_cast<T*>(
- &const_cast<char&>(reinterpret_cast<const volatile char &>(v)));
+ return boost::detail::addressof_impl<T>::f( v, 0 );
}
+// Borland doesn't like casting an array reference to a char reference
+// but these overloads work around the problem.
+# if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
+template<typename T,std::size_t N>
+T (*addressof(T (&t)[N]))[N]
+{
+ return reinterpret_cast<T(*)[N]>(&t);
}
+template<typename T,std::size_t N>
+const T (*addressof(const T (&t)[N]))[N]
+{
+ return reinterpret_cast<const T(*)[N]>(&t);
+}
+# endif
+
+} // namespace boost
+
#endif // BOOST_UTILITY_ADDRESSOF_HPP