1/*=============================================================================
2 Copyright (c) 1999-2003 Jaakko Jarvi
3 Copyright (c) 2001-2011 Joel de Guzman
4
5 Distributed under the Boost Software License, Version 1.0. (See accompanying
6 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
7==============================================================================*/
8#if !defined(FUSION_AS_FUSION_ELEMENT_05052005_0338)
9#define FUSION_AS_FUSION_ELEMENT_05052005_0338
10
11#include <boost/fusion/support/config.hpp>
12#include <boost/ref.hpp>
13
14#ifndef BOOST_NO_CXX11_HDR_FUNCTIONAL
15#include <functional>
16#endif
17
18namespace boost { namespace fusion { namespace detail
19{
20 template <typename T>
21 struct as_fusion_element
22 {
23 typedef T type;
24 };
25
26 template <typename T>
27 struct as_fusion_element<reference_wrapper<T> >
28 {
29 typedef T& type;
30 };
31
32#ifndef BOOST_NO_CXX11_HDR_FUNCTIONAL
33 template <typename T>
34 struct as_fusion_element<std::reference_wrapper<T> >
35 {
36 typedef T& type;
37 };
38#endif
39
40 template <typename T, int N>
41 struct as_fusion_element<T[N]>
42 {
43 typedef const T(&type)[N];
44 };
45
46 template <typename T, int N>
47 struct as_fusion_element<volatile T[N]>
48 {
49 typedef const volatile T(&type)[N];
50 };
51
52 template <typename T, int N>
53 struct as_fusion_element<const volatile T[N]>
54 {
55 typedef const volatile T(&type)[N];
56 };
57
58}}}
59
60#endif
61

source code of include/boost/fusion/support/detail/as_fusion_element.hpp