Sprout/sprout/compost/effects/vocal_cancelled.hpp
2019-01-07 17:47:17 +09:00

63 lines
2 KiB
C++

/*=============================================================================
Copyright (c) 2011-2019 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
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)
=============================================================================*/
#ifndef SPROUT_COMPOST_EFFECTS_VOCAL_CANCELLED_HPP
#define SPROUT_COMPOST_EFFECTS_VOCAL_CANCELLED_HPP
#include <sprout/config.hpp>
#include <sprout/utility/lvalue_forward.hpp>
#include <sprout/functional/minus.hpp>
#include <sprout/range/adaptor/transformed.hpp>
#include <sprout/compost/formats/left_channel.hpp>
#include <sprout/compost/formats/right_channel.hpp>
namespace sprout {
namespace compost {
namespace effects {
//
// vocal_cancelled_forwarder
//
class vocal_cancelled_forwarder {};
//
// vocal_cancelled
//
namespace {
SPROUT_STATIC_CONSTEXPR sprout::compost::effects::vocal_cancelled_forwarder vocal_cancelled = {};
} // anonymous-namespace
//
// operator|
//
// ???
#if !defined(__clang__)
template<typename Range>
inline SPROUT_CONSTEXPR auto
operator|(Range&& lhs, sprout::compost::effects::vocal_cancelled_forwarder const& rhs)
-> decltype(
sprout::lvalue_forward<Range>(lhs) | sprout::compost::formats::left_channel
| sprout::adaptors::transformed(
sprout::lvalue_forward<Range>(lhs) | sprout::compost::formats::right_channel,
sprout::minus<>()
)
)
{
return sprout::lvalue_forward<Range>(lhs) | sprout::compost::formats::left_channel
| sprout::adaptors::transformed(
sprout::lvalue_forward<Range>(lhs) | sprout::compost::formats::right_channel,
sprout::minus<>()
)
;
}
#endif
} // namespace effects
using sprout::compost::effects::vocal_cancelled;
} // namespace compost
} // namespace sprout
#endif // #ifndef SPROUT_COMPOST_EFFECTS_VOCAL_CANCELLED_HPP