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1 | // (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com) |
2 | // (C) Copyright 2003-2007 Jonathan Turkanis | |
3 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
4 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.) | |
5 | ||
6 | // See http://www.boost.org/libs/iostreams for documentation. | |
7 | ||
8 | #ifndef BOOST_IOSTREAMS_OUTPUT_SEQUENCE_HPP_INCLUDED | |
9 | #define BOOST_IOSTREAMS_OUTPUT_SEQUENCE_HPP_INCLUDED | |
10 | ||
11 | #if defined(_MSC_VER) | |
12 | # pragma once | |
13 | #endif | |
14 | ||
15 | #include <utility> // pair. | |
16 | #include <boost/config.hpp> // DEDUCED_TYPENAME, MSVC. | |
17 | #include <boost/detail/workaround.hpp> | |
18 | #include <boost/iostreams/detail/wrap_unwrap.hpp> | |
19 | #include <boost/iostreams/operations_fwd.hpp> // is_custom | |
20 | #include <boost/iostreams/traits.hpp> | |
21 | #include <boost/mpl/if.hpp> | |
22 | ||
23 | // Must come last. | |
24 | #include <boost/iostreams/detail/config/disable_warnings.hpp> | |
25 | ||
26 | namespace boost { namespace iostreams { | |
27 | ||
28 | namespace detail { | |
29 | ||
30 | template<typename T> | |
31 | struct output_sequence_impl; | |
32 | ||
33 | } // End namespace detail. | |
34 | ||
35 | template<typename T> | |
36 | inline std::pair< | |
37 | BOOST_DEDUCED_TYPENAME char_type_of<T>::type*, | |
38 | BOOST_DEDUCED_TYPENAME char_type_of<T>::type* | |
39 | > | |
40 | output_sequence(T& t) | |
41 | { return detail::output_sequence_impl<T>::output_sequence(t); } | |
42 | ||
43 | namespace detail { | |
44 | ||
45 | //------------------Definition of output_sequence_impl------------------------// | |
46 | ||
47 | template<typename T> | |
48 | struct output_sequence_impl | |
49 | : mpl::if_< | |
50 | detail::is_custom<T>, | |
51 | operations<T>, | |
52 | output_sequence_impl<direct_tag> | |
53 | >::type | |
54 | { }; | |
55 | ||
56 | template<> | |
57 | struct output_sequence_impl<direct_tag> { | |
58 | template<typename U> | |
59 | static std::pair< | |
60 | BOOST_DEDUCED_TYPENAME char_type_of<U>::type*, | |
61 | BOOST_DEDUCED_TYPENAME char_type_of<U>::type* | |
62 | > | |
63 | output_sequence(U& u) { return u.output_sequence(); } | |
64 | }; | |
65 | ||
66 | } // End namespace detail. | |
67 | ||
68 | } } // End namespaces iostreams, boost. | |
69 | ||
70 | #include <boost/iostreams/detail/config/enable_warnings.hpp> | |
71 | ||
72 | #endif // #ifndef BOOST_IOSTREAMS_OUTPUT_SEQUENCE_HPP_INCLUDED |