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41 lines
1.0 KiB
41 lines
1.0 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_OPERATIONS_FWD_HPP_INCLUDED |
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#define BOOST_IOSTREAMS_OPERATIONS_FWD_HPP_INCLUDED |
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#if defined(_MSC_VER) && (_MSC_VER >= 1020) |
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# pragma once |
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#endif |
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#include <boost/mpl/not.hpp> |
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#include <boost/type_traits/is_base_and_derived.hpp> |
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namespace boost { namespace iostreams { |
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template<typename T> |
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struct operations; |
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namespace detail { |
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struct custom_tag { }; |
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template<typename T> |
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struct is_custom |
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: mpl::not_< |
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is_base_and_derived< custom_tag, operations<T> > |
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> |
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{ }; |
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} // End namespace detail. |
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template<typename T> |
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struct operations : detail::custom_tag { }; |
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} } // End namespaces iostreams, boost. |
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#endif // #ifndef BOOST_IOSTREAMS_OPERATIONS_FWD_HPP_INCLUDED //--------------//
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