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42 lines
1.0 KiB
42 lines
1.0 KiB
3 years ago
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// (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)
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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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