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51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2016 Bolero MURAKAMI
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https://github.com/bolero-MURAKAMI/Sprout
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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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=============================================================================*/
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#ifndef SPROUT_COMPOST_FORMATS_LEFT_CHANNEL_HPP
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#define SPROUT_COMPOST_FORMATS_LEFT_CHANNEL_HPP
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#include <sprout/config.hpp>
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#include <sprout/utility/forward.hpp>
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#include <sprout/range/adaptor/steps.hpp>
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namespace sprout {
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namespace compost {
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namespace formats {
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//
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// left_channel_forwarder
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//
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class left_channel_forwarder {};
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//
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// left_channel
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//
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namespace {
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SPROUT_STATIC_CONSTEXPR sprout::compost::formats::left_channel_forwarder left_channel = {};
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} // anonymous-namespace
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//
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// operator|
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//
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template<typename Range, typename T>
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inline SPROUT_CONSTEXPR auto
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operator|(Range&& lhs, left_channel_forwarder const&)
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-> decltype(
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SPROUT_FORWARD(Range, lhs)
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| sprout::adaptors::steps(2)
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)
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{
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return SPROUT_FORWARD(Range, lhs)
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| sprout::adaptors::steps(2)
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;
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}
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} // namespace formats
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using sprout::compost::formats::left_channel;
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} // namespace compost
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} // namespace sprout
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#endif // #ifndef SPROUT_COMPOST_FORMATS_LEFT_CHANNEL_HPP
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