63e88f80
 Hu Chunming
提交三方库
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// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
// (C) Copyright 2003-2007 Jonathan Turkanis
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
// See http://www.boost.org/libs/iostreams for documentation.
#ifndef BOOST_IOSTREAMS_IMBUE_HPP_INCLUDED
#define BOOST_IOSTREAMS_IMBUE_HPP_INCLUDED
#if defined(_MSC_VER)
# pragma once
#endif
#include <boost/config.hpp> // DEDUCED_TYPENAME, MSVC.
#include <boost/detail/workaround.hpp>
#include <boost/iostreams/detail/dispatch.hpp>
#include <boost/iostreams/detail/streambuf.hpp>
#include <boost/iostreams/detail/wrap_unwrap.hpp>
#include <boost/iostreams/operations_fwd.hpp>
#include <boost/mpl/if.hpp>
// Must come last.
#include <boost/iostreams/detail/config/disable_warnings.hpp>
namespace boost { namespace iostreams {
namespace detail {
// Implementation templates for simulated tag dispatch.
template<typename T>
struct imbue_impl;
} // End namespace detail.
template<typename T, typename Locale>
void imbue(T& t, const Locale& loc)
{ detail::imbue_impl<T>::imbue(detail::unwrap(t), loc); }
namespace detail {
//------------------Definition of imbue_impl----------------------------------//
template<typename T>
struct imbue_impl
: mpl::if_<
is_custom<T>,
operations<T>,
imbue_impl<
BOOST_DEDUCED_TYPENAME
dispatch<
T, streambuf_tag, localizable_tag, any_tag
>::type
>
>::type
{ };
template<>
struct imbue_impl<any_tag> {
template<typename T, typename Locale>
static void imbue(T&, const Locale&) { }
};
template<>
struct imbue_impl<streambuf_tag> {
template<typename T, typename Locale>
static void imbue(T& t, const Locale& loc) { t.pubimbue(loc); }
};
template<>
struct imbue_impl<localizable_tag> {
template<typename T, typename Locale>
static void imbue(T& t, const Locale& loc) { t.imbue(loc); }
};
} // End namespace detail.
} } // End namespaces iostreams, boost.
#include <boost/iostreams/detail/config/enable_warnings.hpp>
#endif // #ifndef BOOST_IOSTREAMS_IMBUE_HPP_INCLUDED
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