| Jeff Thompson | a28eed8 | 2013-08-22 16:21:10 -0700 | [diff] [blame] | 1 | // Copyright (C) 2003, Fernando Luis Cacciola Carballal. |
| 2 | // |
| 3 | // Use, modification, and distribution is subject to the Boost Software |
| 4 | // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
| 5 | // http://www.boost.org/LICENSE_1_0.txt) |
| 6 | // |
| 7 | // See http://www.boost.org/libs/optional for documentation. |
| 8 | // |
| 9 | // You are welcome to contact the author at: |
| 10 | // fernando_cacciola@hotmail.com |
| 11 | // |
| Jeff Thompson | 3d613fd | 2013-10-15 15:39:04 -0700 | [diff] [blame^] | 12 | #ifndef NDNBOOST_NONE_T_17SEP2003_HPP |
| 13 | #define NDNBOOST_NONE_T_17SEP2003_HPP |
| Jeff Thompson | a28eed8 | 2013-08-22 16:21:10 -0700 | [diff] [blame] | 14 | |
| 15 | namespace ndnboost { |
| 16 | |
| 17 | namespace detail { struct none_helper{}; } |
| 18 | |
| 19 | typedef int detail::none_helper::*none_t ; |
| 20 | |
| 21 | } // namespace ndnboost |
| 22 | |
| 23 | #endif |
| 24 | |