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/Src/Dependencies/Boost/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 17:19:02 +1100 (Sat, 11 Oct 2008) $
16// $Revision: 49267 $
17
18#include <boost/mpl/aux_/config/ctps.hpp>
19
20namespace boost { namespace mpl { namespace aux {
21
22template< 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
32template< typename T > struct wrapped_type;
33
34template< typename T > struct wrapped_type< type_wrapper<T> >
35{
36    typedef T type;
37};
38#else
39template< 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