addressof.hpp

来自「CGAL is a collaborative effort of severa」· HPP 代码 · 共 39 行

// Copyright (C) 2002 Brad King ([e-mail]) 
//                    Douglas Gregor ([e-mail])
//                    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>
# if BOOST_WORKAROUND(BOOST_MSVC, == 1300)
#  include <boost/type_traits/add_pointer.hpp>
# endif

namespace boost {

// Do not make addressof() inline. Breaks MSVC 7. (Peter Dimov)

// 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)
{
  return reinterpret_cast<T*>(
       &const_cast<char&>(reinterpret_cast<const volatile char &>(v)));
}

}

#endif // BOOST_UTILITY_ADDRESSOF_HPP