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1 | /*============================================================================= |
2 | Copyright (c) 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_SUPPORT_DEDUCE_SEQUENCE_HPP_INCLUDED) | |
10 | #define BOOST_FUSION_SUPPORT_DEDUCE_SEQUENCE_HPP_INCLUDED | |
11 | ||
12 | #include <boost/fusion/support/config.hpp> | |
13 | #include <boost/fusion/support/deduce.hpp> | |
14 | #include <boost/fusion/container/vector/convert.hpp> | |
15 | #include <boost/fusion/view/transform_view.hpp> | |
16 | #include <boost/config.hpp> | |
17 | ||
18 | ||
19 | namespace boost { namespace fusion { namespace traits | |
20 | { | |
21 | template <class Sequence> struct deduce_sequence; | |
22 | ||
23 | namespace detail | |
24 | { | |
25 | struct deducer | |
26 | { | |
27 | template <typename Sig> | |
28 | struct result; | |
29 | ||
30 | template <class Self, typename T> | |
31 | struct result< Self(T) > | |
32 | : fusion::traits::deduce<T> | |
33 | { }; | |
34 | ||
35 | // never called, but needed for decltype-based result_of (C++0x) | |
36 | #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES | |
37 | template <typename T> | |
38 | BOOST_FUSION_GPU_ENABLED | |
39 | typename result< deducer(T) >::type | |
40 | operator()(T&&) const; | |
41 | #endif | |
42 | }; | |
43 | } | |
44 | ||
45 | template <class Sequence> | |
46 | struct deduce_sequence | |
47 | : result_of::as_vector< | |
48 | fusion::transform_view<Sequence, detail::deducer> > | |
49 | { }; | |
50 | ||
51 | }}} | |
52 | ||
53 | #endif | |
54 |