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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_STREAM_HPP_INCLUDED #define BOOST_IOSTREAMS_STREAM_HPP_INCLUDED #if defined(_MSC_VER) # pragma once #endif #include <boost/iostreams/constants.hpp> #include <boost/iostreams/detail/char_traits.hpp> #include <boost/iostreams/detail/config/overload_resolution.hpp> #include <boost/iostreams/detail/forward.hpp> #include <boost/iostreams/detail/iostream.hpp> // standard streams. #include <boost/iostreams/detail/select.hpp> #include <boost/iostreams/stream_buffer.hpp> #include <boost/mpl/and.hpp> #include <boost/type_traits/is_convertible.hpp> #include <boost/utility/base_from_member.hpp> namespace boost { namespace iostreams { namespace detail { template<typename Device, typename Tr> struct stream_traits { typedef typename char_type_of<Device>::type char_type; typedef Tr traits_type; typedef typename category_of<Device>::type mode; typedef typename iostreams::select< // Disambiguation required for Tru64. mpl::and_< is_convertible<mode, input>, is_convertible<mode, output> >, BOOST_IOSTREAMS_BASIC_IOSTREAM(char_type, traits_type), is_convertible<mode, input>, BOOST_IOSTREAMS_BASIC_ISTREAM(char_type, traits_type), else_, BOOST_IOSTREAMS_BASIC_OSTREAM(char_type, traits_type) >::type stream_type; typedef typename iostreams::select< // Disambiguation required for Tru64. mpl::and_< is_convertible<mode, input>, is_convertible<mode, output> >, iostream_tag, is_convertible<mode, input>, istream_tag, else_, ostream_tag >::type stream_tag; }; #if defined(BOOST_MSVC) && (BOOST_MSVC == 1700) # pragma warning(push) // https://connect.microsoft.com/VisualStudio/feedback/details/733720/ # pragma warning(disable: 4250) #endif // By encapsulating initialization in a base, we can define the macro // BOOST_IOSTREAMS_DEFINE_FORWARDING_FUNCTIONS to generate constructors // without base member initializer lists. template< typename Device, typename Tr = BOOST_IOSTREAMS_CHAR_TRAITS( BOOST_DEDUCED_TYPENAME char_type_of<Device>::type ), typename Alloc = std::allocator< BOOST_DEDUCED_TYPENAME char_type_of<Device>::type >, typename Base = // VC6 Workaround. BOOST_DEDUCED_TYPENAME detail::stream_traits<Device, Tr>::stream_type > class stream_base : protected base_from_member< stream_buffer<Device, Tr, Alloc> >, public Base { private: typedef base_from_member< stream_buffer<Device, Tr, Alloc> > pbase_type; typedef typename stream_traits<Device, Tr>::stream_type stream_type; protected: using pbase_type::member; // Avoid warning about 'this' in initializer list. public: stream_base() : pbase_type(), stream_type(&member) { } }; #if defined(BOOST_MSVC) && (BOOST_MSVC == 1700) # pragma warning(pop) #endif } } } // End namespaces detail, iostreams, boost. #ifdef BOOST_IOSTREAMS_BROKEN_OVERLOAD_RESOLUTION # include <boost/iostreams/detail/broken_overload_resolution/stream.hpp> #else namespace boost { namespace iostreams { #if defined(BOOST_MSVC) && (BOOST_MSVC == 1700) # pragma warning(push) // https://connect.microsoft.com/VisualStudio/feedback/details/733720/ # pragma warning(disable: 4250) #endif // // Template name: stream. // Description: A iostream which reads from and writes to an instance of a // designated device type. // Template parameters: // Device - A device type. // Alloc - The allocator type. // template< typename Device, typename Tr = BOOST_IOSTREAMS_CHAR_TRAITS( BOOST_DEDUCED_TYPENAME char_type_of<Device>::type ), typename Alloc = std::allocator< BOOST_DEDUCED_TYPENAME char_type_of<Device>::type > > struct stream : detail::stream_base<Device, Tr, Alloc> { public: typedef typename char_type_of<Device>::type char_type; struct category : mode_of<Device>::type, closable_tag, detail::stream_traits<Device, Tr>::stream_tag { }; BOOST_IOSTREAMS_STREAMBUF_TYPEDEFS(Tr) private: typedef typename detail::stream_traits< Device, Tr >::stream_type stream_type; public: stream() { } BOOST_IOSTREAMS_FORWARD( stream, open_impl, Device, BOOST_IOSTREAMS_PUSH_PARAMS, BOOST_IOSTREAMS_PUSH_ARGS ) bool is_open() const { return this->member.is_open(); } void close() { this->member.close(); } bool auto_close() const { return this->member.auto_close(); } void set_auto_close(bool close) { this->member.set_auto_close(close); } bool strict_sync() { return this->member.strict_sync(); } Device& operator*() { return *this->member; } Device* operator->() { return &*this->member; } Device* component() { return this->member.component(); } private: void open_impl(const Device& dev BOOST_IOSTREAMS_PUSH_PARAMS()) // For forwarding. { this->clear(); this->member.open(dev BOOST_IOSTREAMS_PUSH_ARGS()); } }; #if defined(BOOST_MSVC) && (BOOST_MSVC == 1700) # pragma warning(pop) #endif } } // End namespaces iostreams, boost. #endif // #ifdef BOOST_IOSTREAMS_BROKEN_OVERLOAD_RESOLUTION #endif // #ifndef BOOST_IOSTREAMS_stream_HPP_INCLUDED