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https://github.com/bolero-MURAKAMI/Sprout.git
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80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
#ifndef SPROUT_COMPOST_EFFECTS_DISTORTED_HPP
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#define SPROUT_COMPOST_EFFECTS_DISTORTED_HPP
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#include <sprout/config.hpp>
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#include <sprout/utility/forward.hpp>
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#include <sprout/compost/effects/clipped.hpp>
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#include <sprout/compost/effects/changed_volume.hpp>
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namespace sprout {
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namespace compost {
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namespace effects {
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//
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// distort_holder
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//
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template<typename T>
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class distort_holder {
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public:
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typedef T value_type;
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private:
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value_type gain_;
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value_type level_;
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public:
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distort_holder() = default;
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distort_holder(distort_holder const&) = default;
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SPROUT_CONSTEXPR distort_holder(value_type const& gain, value_type const& level)
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: gain_(gain), level_(level)
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{}
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SPROUT_CONSTEXPR value_type const& gain() const {
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return gain_;
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}
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SPROUT_CONSTEXPR value_type const& level() const {
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return level_;
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}
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};
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//
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// distorted_forwarder
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//
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class distorted_forwarder {
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public:
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template<typename T>
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SPROUT_CONSTEXPR sprout::compost::effects::distort_holder<T>
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operator()(T const& gain, T const& level) const {
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return sprout::compost::effects::distort_holder<T>(gain, level);
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}
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};
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//
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// distorted
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//
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namespace {
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SPROUT_STATIC_CONSTEXPR sprout::compost::effects::distorted_forwarder distorted = {};
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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, sprout::compost::effects::distort_holder<T> const& rhs)
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-> decltype(
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sprout::forward<Range>(lhs)
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| sprout::compost::effects::changed_volume(rhs.gain())
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| sprout::compost::effects::clipped()
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| sprout::compost::effects::changed_volume(rhs.level())
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)
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{
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return sprout::forward<Range>(lhs)
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| sprout::compost::effects::changed_volume(rhs.gain())
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| sprout::compost::effects::clipped()
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| sprout::compost::effects::changed_volume(rhs.level())
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;
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}
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} // namespace effects
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using sprout::compost::effects::distorted;
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} // namespace compost
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} // namespace sprout
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#endif // #ifndef SPROUT_COMPOST_EFFECTS_DISTORTED_HPP
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