boost/iostreams/detail/broken_overload_resolution/stream_buffer.hpp
// (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_BROKEN_OVERLOAD_RESOLUTION_STREAM_BUFFER_HPP_INCLUDED #define BOOST_IOSTREAMS_DETAIL_BROKEN_OVERLOAD_RESOLUTION_STREAM_BUFFER_HPP_INCLUDED #include <boost/iostreams/detail/broken_overload_resolution/forward.hpp> #include <boost/throw_exception.hpp> namespace boost { namespace iostreams { template< typename T, typename Tr = BOOST_IOSTREAMS_CHAR_TRAITS( BOOST_DEDUCED_TYPENAME char_type_of<T>::type ), typename Alloc = std::allocator< BOOST_DEDUCED_TYPENAME char_type_of<T>::type >, typename Mode = BOOST_DEDUCED_TYPENAME mode_of<T>::type > class stream_buffer : public detail::stream_buffer_traits<T, Tr, Alloc, Mode>::type { private: BOOST_STATIC_ASSERT(( is_convertible< BOOST_DEDUCED_TYPENAME iostreams::category_of<T>::type, Mode >::value )); typedef typename detail::stream_buffer_traits< T, Tr, Alloc, Mode >::type base_type; public: typedef typename char_type_of<T>::type char_type; struct category : Mode, closable_tag, streambuf_tag { }; BOOST_IOSTREAMS_STREAMBUF_TYPEDEFS(Tr) stream_buffer() { } ~stream_buffer() { try { if (this->is_open() && this->auto_close()) this->close(); } catch (...) { } } template<typename U0> stream_buffer(const U0& u0) { open_impl(detail::forward<T, U0>(), u0); } template<typename U0, typename U1> stream_buffer(const U0& u0, const U1& u1) { open_impl(detail::forward<T, U0>(), u0, u1); } template<typename U0, typename U1, typename U2> stream_buffer(const U0& u0, const U1& u1, const U2& u2) { open_impl(detail::forward<T, U0>(), u0, u1, u2); } #if !BOOST_WORKAROUND(BOOST_MSVC, <= 1300) //---------------------------------// template<typename U0> stream_buffer(U0& u0) { open_impl(detail::forward<T, U0>(), u0); } template<typename U0, typename U1> stream_buffer(U0& u0, const U1& u1) { open_impl(detail::forward<T, U0>(), u0, u1); } template<typename U0, typename U1, typename U2> stream_buffer(U0& u0, const U1& u1, const U2& u2) { open_impl(detail::forward<T, U0>(), u0, u1, u2); } #endif // !BOOST_WORKAROUND(BOOST_MSVC, <= 1300) //---------------------------// template<typename U0> void open(const U0& u0) { open_impl(detail::forward<T, U0>(), u0); } template<typename U0, typename U1> void open(const U0& u0, const U1& u1) { open_impl(detail::forward<T, U0>(), u0, u1); } template<typename U0, typename U1, typename U2> void open(const U0& u0, const U1& u1, const U2& u2) { open_impl(detail::forward<T, U0>(), u0, u1, u2); } #if !BOOST_WORKAROUND(BOOST_MSVC, <= 1300) //---------------------------------// template<typename U0> void open(U0& u0) { open_impl(detail::forward<T, U0>(), u0); } template<typename U0, typename U1> void open(U0& u0, const U1& u1) { open_impl(detail::forward<T, U0>(), u0, u1); } template<typename U0, typename U1, typename U2> void open(U0& u0, const U1& u1, const U2& u2) { open_impl(detail::forward<T, U0>(), u0, u1, u2); } #endif // !BOOST_WORKAROUND(BOOST_MSVC, <= 1300) //---------------------------// T& operator*() { return *this->component(); } T* operator->() { return this->component(); } private: template<typename U0> void open_impl(mpl::false_, const U0& u0) { base_type::open(const_cast<U0&>(u0), -1, -1); } #if !BOOST_WORKAROUND(BOOST_MSVC, <= 1300) //---------------------------------// template<typename U0> void open_impl(mpl::false_, U0& u0) { base_type::open(detail::wrap(u0), -1, -1); } #endif // !BOOST_WORKAROUND(BOOST_MSVC, <= 1300) //---------------------------// template<typename U0> void open_impl(mpl::true_, const U0& u0) { base_type::open(T(const_cast<U0&>(u0)), -1, -1); } #if !BOOST_WORKAROUND(BOOST_MSVC, <= 1300) //---------------------------------// template<typename U0> void open_impl(mpl::true_, U0& u0) { base_type::open(T(u0), -1, -1); } #endif // !BOOST_WORKAROUND(BOOST_MSVC, <= 1300) //---------------------------// template<typename U0, typename U1> void open_impl(mpl::false_, const U0& u0, const U1& u1) { base_type::open(u0, u1, -1); } template<typename U0, typename U1> void open_impl(mpl::true_, const U0& u0, const U1& u1) { base_type::open(T(const_cast<U0&>(u0), u1), -1, -1); } #if !BOOST_WORKAROUND(BOOST_MSVC, <= 1300) //---------------------------------// template<typename U0, typename U1> void open_impl(mpl::true_, U0& u0, const U1& u1) { base_type::open(T(u0, u1), -1, -1); } #endif // !BOOST_WORKAROUND(BOOST_MSVC, <= 1300) //---------------------------// template<typename U0, typename U1, typename U2> void open_impl(mpl::false_, const U0& u0, const U1& u1, const U2& u2) { base_type::open(u0, u1, u2); } template<typename U0, typename U1, typename U2> void open_impl(mpl::true_, const U0& u0, const U1& u1, const U2& u2) { base_type::open(T(const_cast<U0&>(u0), u1, u2), -1, -1); } #if !BOOST_WORKAROUND(BOOST_MSVC, <= 1300) //---------------------------------// template<typename U0, typename U1, typename U2> void open_impl(mpl::true_, U0& u0, const U1& u1, const U2& u2) { base_type::open(T(u0, u1, u2), -1, -1); } #endif // !BOOST_WORKAROUND(BOOST_MSVC, <= 1300) //---------------------------// void check_open() { if (this->is_open()) boost::throw_exception(BOOST_IOSTREAMS_FAILURE("already open")); } }; } } // End namespaces iostreams, boost. #endif // BOOST_IOSTREAMS_DETAIL_BROKEN_OVERLOAD_RESOLUTION_STREAM_BUFFER_HPP_INCLUDED