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mode_adapter.hpp - Hosted on DriveHQ Cloud IT Platform
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路径: \\game3dprogramming\materials\GameFactory\GameFactoryDemo\references\boost_1_35_0\boost\iostreams\detail\adapter\mode_adapter.hpp
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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_DETAIL_MODE_ADAPTER_HPP_INCLUDED #define BOOST_IOSTREAMS_DETAIL_MODE_ADAPTER_HPP_INCLUDED #if defined(_MSC_VER) && (_MSC_VER >= 1020) # pragma once #endif // Contains the definition of the class template mode_adapter, which allows // a filter or device to function as if it has a different i/o mode than that // deduced by the metafunction mode_of. #include
// BOOST_MSVC. #include
#include
#include
// openmode, seekdir, int types. #include
#include
#include
namespace boost { namespace iostreams { namespace detail { template
class mode_adapter { private: struct empty_base { }; public: typedef typename wrapped_type
::type policy_type; typedef typename char_type_of
::type char_type; struct category : Mode, device_tag, mpl::if_
, filter_tag, device_tag>, mpl::if_
, multichar_tag, empty_base>, #if !BOOST_WORKAROUND(BOOST_MSVC, < 1300) closable_tag, // VC6 can't see member close()! #endif localizable_tag { }; explicit mode_adapter(const policy_type& t) : t_(t) { } // Device member functions. std::streamsize read(char_type* s, std::streamsize n); std::streamsize write(const char_type* s, std::streamsize n); std::streampos seek( stream_offset off, BOOST_IOS::seekdir way, BOOST_IOS::openmode which = BOOST_IOS::in | BOOST_IOS::out ); #if !BOOST_WORKAROUND(BOOST_MSVC, < 1300) void close(); void close(BOOST_IOS::openmode which); #endif // Filter member functions. template
std::streamsize read(Source& src, char_type* s, std::streamsize n) { return iostreams::read(t_, src, s, n); } template
std::streamsize write(Sink& snk, const char_type* s, std::streamsize n) { return iostreams::write(t_, snk, s, n); } template
std::streampos seek(Device& dev, stream_offset off, BOOST_IOS::seekdir way) { return iostreams::seek(t_, dev, off, way); } template
std::streampos seek( Device& dev, stream_offset off, BOOST_IOS::seekdir way, BOOST_IOS::openmode which ) { return iostreams::seek(t_, dev, off, way, which); } template
void close(Device& dev) { detail::close_all(t_, dev); } template
void close(Device& dev, BOOST_IOS::openmode which) { iostreams::close(t_, dev, which); } template
void imbue(const Locale& loc) { iostreams::imbue(t_, loc); } private: policy_type t_; }; //------------------Implementation of mode_adapter----------------------------// template
std::streamsize mode_adapter
::read (char_type* s, std::streamsize n) { return boost::iostreams::read(t_, s, n); } template
std::streamsize mode_adapter
::write (const char_type* s, std::streamsize n) { return boost::iostreams::write(t_, s, n); } template
std::streampos mode_adapter
::seek (stream_offset off, BOOST_IOS::seekdir way, BOOST_IOS::openmode which) { return boost::iostreams::seek(t_, off, way, which); } #if !BOOST_WORKAROUND(BOOST_MSVC, < 1300) template
void mode_adapter
::close() { detail::close_all(t_); } template
void mode_adapter
::close(BOOST_IOS::openmode which) { iostreams::close(t_, which); } #endif } } } // End namespaces detail, iostreams, boost. #endif // #ifndef BOOST_IOSTREAMS_DETAIL_MODE_ADAPTER_HPP_INCLUDED //-----//
mode_adapter.hpp
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