1 // Copyright (C) 2003, Fernando Luis Cacciola Carballal.
3 // Distributed under the Boost Software License, Version 1.0.
4 // (See accompanying file LICENSE_1_0.txt or copy at
5 // http://www.boost.org/LICENSE_1_0.txt)
7 // See http://www.boost.org/libs/optional for documentation.
9 // You are welcome to contact the author at:
10 // fernando_cacciola@hotmail.com
12 #ifndef BOOST_NONE_17SEP2003_HPP
13 #define BOOST_NONE_17SEP2003_HPP
15 #include "boost/none_t.hpp"
17 // NOTE: Borland users have to include this header outside any precompiled headers
18 // (bcc<=5.64 cannot include instance data in a precompiled header)
19 // -- * To be verified, now that there's no unnamed namespace
23 none_t const none = (static_cast<none_t>(0)) ;