Jeff Thompson | a28eed8 | 2013-08-22 16:21:10 -0700 | [diff] [blame] | 1 | |
Jeff Thompson | 3d613fd | 2013-10-15 15:39:04 -0700 | [diff] [blame^] | 2 | #ifndef NDNBOOST_MPL_AUX_TYPE_WRAPPER_HPP_INCLUDED |
| 3 | #define NDNBOOST_MPL_AUX_TYPE_WRAPPER_HPP_INCLUDED |
Jeff Thompson | a28eed8 | 2013-08-22 16:21:10 -0700 | [diff] [blame] | 4 | |
| 5 | // Copyright Aleksey Gurtovoy 2000-2004 |
| 6 | // Copyright Peter Dimov 2000-2003 |
| 7 | // |
| 8 | // Distributed under the Boost Software License, Version 1.0. |
| 9 | // (See accompanying file LICENSE_1_0.txt or copy at |
| 10 | // http://www.boost.org/LICENSE_1_0.txt) |
| 11 | // |
| 12 | // See http://www.boost.org/libs/mpl for documentation. |
| 13 | |
| 14 | // $Id: type_wrapper.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ |
| 15 | // $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $ |
| 16 | // $Revision: 49267 $ |
| 17 | |
| 18 | #include <ndnboost/mpl/aux_/config/ctps.hpp> |
| 19 | |
| 20 | namespace ndnboost { namespace mpl { namespace aux { |
| 21 | |
| 22 | template< typename T > struct type_wrapper |
| 23 | { |
| 24 | typedef T type; |
| 25 | }; |
| 26 | |
Jeff Thompson | 3d613fd | 2013-10-15 15:39:04 -0700 | [diff] [blame^] | 27 | #if !defined(NDNBOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) |
Jeff Thompson | a28eed8 | 2013-08-22 16:21:10 -0700 | [diff] [blame] | 28 | // agurt 08/may/03: a complicated way to extract the wrapped type; need it |
| 29 | // mostly for the sake of GCC (3.2.x), which ICEs if you try to extract the |
| 30 | // nested 'type' from 'type_wrapper<T>' when the latter was the result of a |
| 31 | // 'typeof' expression |
| 32 | template< typename T > struct wrapped_type; |
| 33 | |
| 34 | template< typename T > struct wrapped_type< type_wrapper<T> > |
| 35 | { |
| 36 | typedef T type; |
| 37 | }; |
| 38 | #else |
| 39 | template< typename W > struct wrapped_type |
| 40 | { |
| 41 | typedef typename W::type type; |
| 42 | }; |
| 43 | #endif |
| 44 | |
| 45 | }}} |
| 46 | |
Jeff Thompson | 3d613fd | 2013-10-15 15:39:04 -0700 | [diff] [blame^] | 47 | #endif // NDNBOOST_MPL_AUX_TYPE_WRAPPER_HPP_INCLUDED |