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authorRemko Tronçon <git@el-tramo.be>2009-06-01 08:48:42 (GMT)
committerRemko Tronçon <git@el-tramo.be>2009-06-01 09:24:28 (GMT)
commit2812bddd81f8a1b804c7460f4e14cd0aa393d129 (patch)
treed46294f35150c4f0f43deaf2d31fceaf945ae715 /3rdParty/Boost/boost/utility/addressof.hpp
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+// Copyright (C) 2002 Brad King (brad.king@kitware.com)
+// Douglas Gregor (gregod@cs.rpi.edu)
+//
+// Copyright (C) 2002, 2008 Peter Dimov
+//
+// 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
+
+#ifndef BOOST_UTILITY_ADDRESSOF_HPP
+# define BOOST_UTILITY_ADDRESSOF_HPP
+
+# include <boost/config.hpp>
+# include <boost/detail/workaround.hpp>
+
+namespace boost
+{
+
+namespace detail
+{
+
+template<class T> struct addr_impl_ref
+{
+ T & v_;
+
+ inline addr_impl_ref( T & v ): v_( v ) {}
+ inline operator T& () const { return 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 )
+{
+#if defined( __BORLANDC__ ) && BOOST_WORKAROUND( __BORLANDC__, BOOST_TESTED_AT( 0x610 ) )
+
+ return boost::detail::addressof_impl<T>::f( v, 0 );
+
+#else
+
+ return boost::detail::addressof_impl<T>::f( boost::detail::addr_impl_ref<T>( v ), 0 );
+
+#endif
+}
+
+#if defined( __SUNPRO_CC ) && BOOST_WORKAROUND( __SUNPRO_CC, BOOST_TESTED_AT( 0x590 ) )
+
+namespace detail
+{
+
+template<class T> struct addressof_addp
+{
+ typedef T * type;
+};
+
+} // namespace detail
+
+template< class T, std::size_t N >
+typename detail::addressof_addp< T[N] >::type addressof( T (&t)[N] )
+{
+ return &t;
+}
+
+#endif
+
+// Borland doesn't like casting an array reference to a char reference
+// but these overloads work around the problem.
+#if defined( __BORLANDC__ ) && 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