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_IMBUE_HPP_INCLUDED
9 #define BOOST_IOSTREAMS_IMBUE_HPP_INCLUDED
10
11 #if defined(_MSC_VER)
12 # pragma once
13 #endif
14
15 #include <boost/config.hpp> // DEDUCED_TYPENAME, MSVC.
16 #include <boost/detail/workaround.hpp>
17 #include <boost/iostreams/detail/dispatch.hpp>
18 #include <boost/iostreams/detail/streambuf.hpp>
19 #include <boost/iostreams/detail/wrap_unwrap.hpp>
20 #include <boost/iostreams/operations_fwd.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 // Implementation templates for simulated tag dispatch.
31 template<typename T>
32 struct imbue_impl;
33
34 } // End namespace detail.
35
36 template<typename T, typename Locale>
imbue(T & t,const Locale & loc)37 void imbue(T& t, const Locale& loc)
38 { detail::imbue_impl<T>::imbue(detail::unwrap(t), loc); }
39
40 namespace detail {
41
42 //------------------Definition of imbue_impl----------------------------------//
43
44 template<typename T>
45 struct imbue_impl
46 : mpl::if_<
47 is_custom<T>,
48 operations<T>,
49 imbue_impl<
50 BOOST_DEDUCED_TYPENAME
51 dispatch<
52 T, streambuf_tag, localizable_tag, any_tag
53 >::type
54 >
55 >::type
56 { };
57
58 template<>
59 struct imbue_impl<any_tag> {
60 template<typename T, typename Locale>
imbueboost::iostreams::detail::imbue_impl61 static void imbue(T&, const Locale&) { }
62 };
63
64 template<>
65 struct imbue_impl<streambuf_tag> {
66 template<typename T, typename Locale>
imbueboost::iostreams::detail::imbue_impl67 static void imbue(T& t, const Locale& loc) { t.pubimbue(loc); }
68 };
69
70 template<>
71 struct imbue_impl<localizable_tag> {
72 template<typename T, typename Locale>
imbueboost::iostreams::detail::imbue_impl73 static void imbue(T& t, const Locale& loc) { t.imbue(loc); }
74 };
75
76 } // End namespace detail.
77
78 } } // End namespaces iostreams, boost.
79
80 #include <boost/iostreams/detail/config/enable_warnings.hpp>
81
82 #endif // #ifndef BOOST_IOSTREAMS_IMBUE_HPP_INCLUDED
83