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1 // (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
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2 // (C) Copyright 2003-2007 Jonathan Turkanis
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3 // Distributed under the Boost Software License, Version 1.0. (See accompanying
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4 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
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5
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6 // See http://www.boost.org/libs/iostreams for documentation.
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7
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8 #ifndef BOOST_IOSTREAMS_IMBUE_HPP_INCLUDED
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9 #define BOOST_IOSTREAMS_IMBUE_HPP_INCLUDED
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10
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11 #if defined(_MSC_VER) && (_MSC_VER >= 1020)
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12 # pragma once
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13 #endif
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14
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15 #include <boost/config.hpp> // DEDUCED_TYPENAME, MSVC.
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16 #include <boost/detail/workaround.hpp>
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17 #include <boost/iostreams/detail/dispatch.hpp>
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18 #include <boost/iostreams/detail/streambuf.hpp>
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19 #include <boost/iostreams/detail/wrap_unwrap.hpp>
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20 #include <boost/iostreams/operations_fwd.hpp>
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21 #include <boost/mpl/if.hpp>
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22
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23 // Must come last.
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24 #include <boost/iostreams/detail/config/disable_warnings.hpp>
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25
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26 namespace boost { namespace iostreams {
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27
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28 namespace detail {
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29
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30 // Implementation templates for simulated tag dispatch.
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31 template<typename T>
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32 struct imbue_impl;
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33
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34 } // End namespace detail.
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35
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36 template<typename T, typename Locale>
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37 void imbue(T& t, const Locale& loc)
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38 { detail::imbue_impl<T>::imbue(detail::unwrap(t), loc); }
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39
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40 namespace detail {
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41
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42 //------------------Definition of imbue_impl----------------------------------//
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43
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44 template<typename T>
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45 struct imbue_impl
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46 : mpl::if_<
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47 is_custom<T>,
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48 operations<T>,
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49 imbue_impl<
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50 BOOST_DEDUCED_TYPENAME
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51 dispatch<
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52 T, streambuf_tag, localizable_tag, any_tag
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53 >::type
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54 >
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55 >::type
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56 { };
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57
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58 template<>
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59 struct imbue_impl<any_tag> {
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60 template<typename T, typename Locale>
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61 static void imbue(T&, const Locale&) { }
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62 };
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63
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64 template<>
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65 struct imbue_impl<streambuf_tag> {
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66 template<typename T, typename Locale>
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67 static void imbue(T& t, const Locale& loc) { t.pubimbue(loc); }
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68 };
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69
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70 template<>
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71 struct imbue_impl<localizable_tag> {
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72 template<typename T, typename Locale>
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73 static void imbue(T& t, const Locale& loc) { t.imbue(loc); }
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74 };
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75
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76 } // End namespace detail.
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77
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78 } } // End namespaces iostreams, boost.
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79
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80 #include <boost/iostreams/detail/config/enable_warnings.hpp>
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81
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82 #endif // #ifndef BOOST_IOSTREAMS_IMBUE_HPP_INCLUDED
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