1 /*=============================================================================
2     Copyright (c) 2006-2007 Tobias Schwinger
3 
4     Use modification and distribution are subject to the Boost Software
5     License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
6     http://www.boost.org/LICENSE_1_0.txt).
7 ==============================================================================*/
8 
9 #if !defined(BOOST_FUSION_FUNCTIONAL_ADAPTER_FUSED_HPP_INCLUDED)
10 #define BOOST_FUSION_FUNCTIONAL_ADAPTER_FUSED_HPP_INCLUDED
11 
12 #include <boost/fusion/support/config.hpp>
13 #include <boost/type_traits/add_reference.hpp>
14 #include <boost/config.hpp>
15 
16 #include <boost/fusion/functional/adapter/detail/access.hpp>
17 #include <boost/fusion/functional/invocation/invoke.hpp>
18 
19 #if defined (BOOST_MSVC)
20 #  pragma warning(push)
21 #  pragma warning (disable: 4512) // assignment operator could not be generated.
22 #endif
23 
24 namespace boost { namespace fusion
25 {
26     template <typename Function> class fused;
27 
28     //----- ---- --- -- - -  -   -
29 
30     template <typename Function>
31     class fused
32     {
33         Function fnc_transformed;
34 
35         typedef typename detail::qf_c<Function>::type & func_const_fwd_t;
36         typedef typename detail::qf<Function>::type & func_fwd_t;
37 
38     public:
39 
40         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
fused(func_const_fwd_t f=Function ())41         inline explicit fused(func_const_fwd_t f = Function())
42             : fnc_transformed(f)
43         { }
44 
45         template <class Seq>
46         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
47         inline typename result_of::invoke<func_const_fwd_t,Seq const>::type
operator ()(Seq const & s) const48         operator()(Seq const & s) const
49         {
50             return fusion::invoke<func_const_fwd_t>(this->fnc_transformed,s);
51         }
52 
53         template <class Seq>
54         BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
55         inline typename result_of::invoke<func_fwd_t,Seq const>::type
operator ()(Seq const & s)56         operator()(Seq const & s)
57         {
58             return fusion::invoke<func_fwd_t>(this->fnc_transformed,s);
59         }
60 
61         template <class Seq>
62         BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
63         inline typename result_of::invoke<func_const_fwd_t,Seq>::type
operator ()(Seq & s) const64         operator()(Seq & s) const
65         {
66             return fusion::invoke<func_const_fwd_t>(this->fnc_transformed,s);
67         }
68 
69         template <class Seq>
70         BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
71         inline typename result_of::invoke<func_fwd_t,Seq>::type
operator ()(Seq & s)72         operator()(Seq & s)
73         {
74             return fusion::invoke<func_fwd_t>(this->fnc_transformed,s);
75         }
76 
77         template <typename Sig>
78         struct result;
79 
80         template <class Self, class Seq>
81         struct result< Self const (Seq) >
82             : result_of::invoke<func_const_fwd_t,
83                 typename boost::remove_reference<Seq>::type >
84         { };
85 
86         template <class Self, class Seq>
87         struct result< Self(Seq) >
88             : result_of::invoke<func_fwd_t,
89                 typename boost::remove_reference<Seq>::type >
90         { };
91 
92     };
93 
94 }}
95 
96 #if defined (BOOST_MSVC)
97 #  pragma warning(pop)
98 #endif
99 
100 #endif
101 
102