source:
vendors/XIOS/current/extern/boost/include/boost/mpl/aux_/type_wrapper.hpp
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1 | |
2 | #ifndef BOOST_MPL_AUX_TYPE_WRAPPER_HPP_INCLUDED |
3 | #define BOOST_MPL_AUX_TYPE_WRAPPER_HPP_INCLUDED |
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: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ |
16 | // $Revision: 49267 $ |
17 | |
18 | #include <boost/mpl/aux_/config/ctps.hpp> |
19 | |
20 | namespace boost { namespace mpl { namespace aux { |
21 | |
22 | template< typename T > struct type_wrapper |
23 | { |
24 | typedef T type; |
25 | }; |
26 | |
27 | #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) |
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 | |
47 | #endif // BOOST_MPL_AUX_TYPE_WRAPPER_HPP_INCLUDED |
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