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72 lines
2.0 KiB
72 lines
2.0 KiB
// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com) |
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// (C) Copyright 2003-2007 Jonathan Turkanis |
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// Distributed under the Boost Software License, Version 1.0. (See accompanying |
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.) |
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// See http://www.boost.org/libs/iostreams for documentation. |
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#ifndef BOOST_IOSTREAMS_OUTPUT_SEQUENCE_HPP_INCLUDED |
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#define BOOST_IOSTREAMS_OUTPUT_SEQUENCE_HPP_INCLUDED |
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#if defined(_MSC_VER) |
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# pragma once |
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#endif |
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#include <utility> // pair. |
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#include <boost/config.hpp> // DEDUCED_TYPENAME, MSVC. |
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#include <boost/detail/workaround.hpp> |
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#include <boost/iostreams/detail/wrap_unwrap.hpp> |
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#include <boost/iostreams/operations_fwd.hpp> // is_custom |
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#include <boost/iostreams/traits.hpp> |
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#include <boost/mpl/if.hpp> |
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// Must come last. |
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#include <boost/iostreams/detail/config/disable_warnings.hpp> |
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namespace boost { namespace iostreams { |
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namespace detail { |
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template<typename T> |
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struct output_sequence_impl; |
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} // End namespace detail. |
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template<typename T> |
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inline std::pair< |
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BOOST_DEDUCED_TYPENAME char_type_of<T>::type*, |
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BOOST_DEDUCED_TYPENAME char_type_of<T>::type* |
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> |
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output_sequence(T& t) |
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{ return detail::output_sequence_impl<T>::output_sequence(t); } |
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namespace detail { |
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//------------------Definition of output_sequence_impl------------------------// |
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template<typename T> |
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struct output_sequence_impl |
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: mpl::if_< |
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detail::is_custom<T>, |
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operations<T>, |
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output_sequence_impl<direct_tag> |
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>::type |
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{ }; |
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template<> |
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struct output_sequence_impl<direct_tag> { |
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template<typename U> |
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static std::pair< |
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BOOST_DEDUCED_TYPENAME char_type_of<U>::type*, |
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BOOST_DEDUCED_TYPENAME char_type_of<U>::type* |
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> |
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output_sequence(U& u) { return u.output_sequence(); } |
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}; |
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} // End namespace detail. |
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} } // End namespaces iostreams, boost. |
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#include <boost/iostreams/detail/config/enable_warnings.hpp> |
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#endif // #ifndef BOOST_IOSTREAMS_OUTPUT_SEQUENCE_HPP_INCLUDED
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