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30 lines
1.2 KiB
C++
30 lines
1.2 KiB
C++
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/*=============================================================================
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Copyright (c) 2011-2014 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_NUMERIC_DFT_DETAIL_SQUARE_HPP
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#define SPROUT_NUMERIC_DFT_DETAIL_SQUARE_HPP
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#include <sprout/config.hpp>
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#include <sprout/numeric/dft/detail/sawtooth.hpp>
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namespace sprout {
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namespace detail {
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template<typename T>
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inline SPROUT_CONSTEXPR T
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square_value_impl(T const& t, T const& duty) {
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return sprout::detail::sawtooth_value_impl(t) - sprout::detail::sawtooth_value_impl(t - duty);
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}
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template<typename T, typename Index>
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inline SPROUT_CONSTEXPR T
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square_value(T const& frequency, T const& amplitude, T const& phase, T const& duty, Index i) {
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return amplitude * sprout::detail::square_value_impl(frequency * T(i) + phase, duty);
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}
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} // namespace detail
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} // namespace sprout
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#endif // #ifndef SPROUT_NUMERIC_DFT_DETAIL_SQUARE_HPP
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