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1 /*
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2 * Defines the class template boost::iostreams::detail::filter_adapter,
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3 * a convenience base class for filter adapters.
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4 *
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5 * File: boost/iostreams/detail/adapter/filter_adapter.hpp
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6 * Date: Mon Nov 26 14:35:48 MST 2007
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7 * Copyright: 2007-2008 CodeRage, LLC
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8 * Author: Jonathan Turkanis
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9 * Contact: turkanis at coderage dot com
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10 *
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11 * Distributed under the Boost Software License, Version 1.0.(See accompanying
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12 * file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
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13 *
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14 * See http://www.boost.org/libs/iostreams for documentation.
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15 */
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16
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17 #ifndef BOOST_IOSTREAMS_DETAIL_FILTER_ADAPTER_HPP_INCLUDED
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18 #define BOOST_IOSTREAMS_DETAIL_FILTER_ADAPTER_HPP_INCLUDED
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19
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20 #include <boost/iostreams/categories.hpp>
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21 #include <boost/iostreams/detail/call_traits.hpp>
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22 #include <boost/iostreams/detail/ios.hpp>
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23 #include <boost/iostreams/operations.hpp>
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24 #include <boost/iostreams/traits.hpp>
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25 #include <boost/static_assert.hpp>
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26
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27 namespace boost { namespace iostreams { namespace detail {
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28
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29 template<typename T>
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30 class filter_adapter {
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31 private:
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32 typedef typename detail::value_type<T>::type value_type;
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33 typedef typename detail::param_type<T>::type param_type;
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34 public:
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35 explicit filter_adapter(param_type t) : t_(t) { }
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36 T& component() { return t_; }
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37
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38 template<typename Device>
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39 void close(Device& dev)
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40 {
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41 detail::close_all(t_, dev);
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42 }
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43
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44 template<typename Device>
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45 void close(Device& dev, BOOST_IOS::openmode which)
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46 {
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47 iostreams::close(t_, dev, which);
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48 }
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49
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50 template<typename Device>
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51 void flush(Device& dev)
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52 {
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53 return iostreams::flush(t_, dev);
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54 }
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55
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56 template<typename Locale> // Avoid dependency on <locale>
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57 void imbue(const Locale& loc) { iostreams::imbue(t_, loc); }
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58
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59 std::streamsize optimal_buffer_size() const
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60 { return iostreams::optimal_buffer_size(t_); }
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61 public:
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62 value_type t_;
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63 };
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64
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65 //----------------------------------------------------------------------------//
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66
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67 } } } // End namespaces detail, iostreams, boost.
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68
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69 #endif // #ifndef BOOST_IOSTREAMS_DETAIL_FILTER_ADAPTER_HPP_INCLUDED
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